Water supply and drainage projects are of great significance to urban development and construction, because water supply and drainage will affect the normal life and social stability of urban residents. Below are water supply and drainage related papers that I have compiled for your reference.

Water Supply and Drainage Paper Part 1: "Urban Water Supply and Drainage Planning"

Abstract To determine whether a city is developed, we must not only look at GDP and high-rise buildings, but also the places that people cannot see. , such as sewers, etc.; to see whether a city's planning is reasonable, we should not only look at the spacing between buildings and the degree of greening, but also the places where people need it, such as water supply and drainage systems. Water supply and drainage design occupies a very important position in urban planning, and is of great significance to the construction of water supply and drainage systems that meet the basic lives of urban residents and industrial and agricultural production.

Keywords urban planning, water supply, drainage

1. Introduction

Urban water supply and drainage engineering is the unified arrangement of urban water supply and drainage engineering systems to ensure water supply and drainage Engineering construction should be coordinated with urban development to promote the sustainable development of the city. It is a professional plan in urban planning and an important part of the overall development and construction of the city. Its comprehensive effect cannot be replaced. Whether the planning and design of the urban water system is reasonable will directly affect and restrict the development of the city. ?Urban water system? Mainly includes water source system, water use system, water supply system, drainage system, reuse system and rainwater system. With the development of cities, the water supply and drainage projects between cities are no longer an isolated system. Water areas connect these subsystems into one system. The original engineering planning method shows its limitations to a certain extent, which requires us to Under the new historical conditions, we should do a good job in urban municipal water supply and drainage planning and design, carefully consider and solve existing problems, seek rational utilization of urban water resources, meet the requirements of social development in terms of economy and technology, and achieve the sustainable development of modern cities.

2. Problems in urban water supply and drainage system planning

(1) Municipal water supply and drainage engineering planning lags behind. In the design process of municipal road drainage projects, water supply and drainage work types are in a cooperative position, which affects the scientific development of urban water supply and drainage planning. It often happens that roads require rapid construction, resulting in drainage project plans not being prepared, and some drainage projects often cannot be constructed at the same time as road projects; in some cases, although the design is completed, the drainage project plans need to be revised due to related reasons, and many engineering projects fail to be carried out according to the plan. The guiding significance of construction and planning has not been truly reflected, causing the project to need to be transformed again.

(2) The scientific basis for planning is insufficient. The basic work of urban water system planning mainly includes various indicators, standards, basic data and analysis tools, among which water volume prediction and water balance analysis are the core tasks. At present, my country's water quantity prediction work mainly refers to the relevant provisions of the "Planning Specifications for Urban Water Supply Projects" (GB50282-98). However, my country lacks understanding of water use processes, various water use appliances and water use behaviors at both the national and regional levels. Detailed system monitoring lacks basic research on the substitution and diffusion laws of new water use technologies, and lacks comprehensive and structural analysis of various water use information.

(3) The drainage system planning is chaotic and the drainage system is unreasonable. At present, drainage facilities in most urban areas are managed by different departments such as the Environmental Protection Bureau, Municipal Engineering Management Office, and Water Conservancy Bureau. Due to insufficient communication between various departments, unclear responsibilities of management personnel, and insufficient relevant laws and regulations, the drainage facilities Existing problems and new problems that arise cannot be solved in time. In addition, the traditional design of flood control and drainage facilities emphasizes the use of a diversion drainage system to discharge rainwater and sewage out of the city as quickly as possible, but ignores the control of urban runoff non-point source pollution and the utilization of rainwater resources. With the gradual improvement of the overall water quality of the basin, the impact on the water ecosystem caused by random urban rainstorm runoff and sudden discharge events has increasingly become a major part of pollution control in the basin.

(4) The traditional water supply and drainage profession cannot meet the needs of the market.

Because urban water supply and drainage planning and design has many technical parameters, uncertain factors, and interdisciplinary characteristics, it greatly increases the difficulty of urban water supply and drainage planning. Students who have just graduated from traditional water supply and drainage majors are limited by their knowledge structure. It cannot carry out macroscopic analysis and demonstration, does not meet the multi-disciplinary and multi-level analysis and demonstration requirements of urban planning, and is far from meeting the needs of urban water supply and drainage planning and design.

3. Countermeasures to solve urban water supply and drainage system planning problems

(1) Urban water system planning must be coordinated with urban planning. Urban water system planning is a comprehensive arrangement of the city's water sources, water supply, water use, drainage, sewage treatment and other subsystems and their various elements within a certain period of time. The overall balance of urban water use planning is very important, and various feasible water saving, water reuse and other solutions must be optimized and combined. To do this, we must first understand urban water utilization planning, strengthen special water planning in urban overall planning, and prepare urban water utilization planning in accordance with the concept of sustainable water development. The content should include: surface water, groundwater, rainwater, seawater and other water Resource balance; total balance of water supply, drainage and sewage recycling; water supply and water conservation planning and sewage treatment and recycling planning; water ecological cycle planning; the scale and layout of various water engineering facilities, etc. In view of the common problems such as uncoordinated planning, unmatched construction, and inconsistent management in the current construction of urban water systems in my country, special attention should be paid to the coordinated growth of pipe network support and water supply, drainage and sewage treatment capacity during the planning period. The scale, detailed layout and operation management plan of the water system and its network facilities.

(2) Strengthen water volume budget. Water volume prediction is the basis of water supply planning. Whether the water volume scale prediction is in line with development trends and actual needs will have a significant impact on the overall layout, rational utilization, implementation steps and project costs of water resources. The national standard "Planning Specifications for Urban Water Supply Projects" is the main basis for calculating the scale of total urban water consumption, including: water supply volume forecast in the overall planning stage; sewage water volume forecast in the overall planning stage; water supply and sewage volume forecast in the zoning planning stage and professional planning; details Water supply and wastewater volume forecast in the planning stage. Since the reform and development, industrial production, urban construction, residential construction, and the tertiary industry have developed rapidly, resulting in a continuous increase in water supply. As one of the urban infrastructures, the growth pattern of water supply will also be different from the past. Water volume prediction cannot only be calculated based on historical development, but also needs to be separately predicted and analyzed for different types of water consumption based on specific urban planning.

(3) Urban water supply and drainage systems should develop towards sustainability. Water in nature is cyclical, and water supply and drainage are unified. Human society's use of water should obey this process. After using water, the water must be regenerated to make the water quality reach the level that nature's self-purification ability can bear. Otherwise, the accumulated large amount of pollutants will exceed the capacity of the water environment, leading to water resources crisis and water pollution, and finally destroying the water quality. A virtuous cycle is not conducive to the sustainable development of cities. The ways to control the sustainable development of urban water supply and drainage systems are: ① Add water-saving subsystems to urban water systems; ② Add pollution control subsystems to urban water systems; ③ Add reclaimed water reuse subsystems to urban water systems. system. Strengthening water conservation, pollution control and recycled water recycling, and paying attention to the utilization of non-traditional water resources such as recycled water and reclaimed water, are the keys to promoting a virtuous cycle in urban water supply and drainage systems and achieving sustainable development of urban water resources.

(4) Improve various regulations. According to the chaotic current situation of my country's water supply and drainage system planning, administrative legislation should be passed to improve relevant laws and regulations, establish a clear water supply and drainage project construction and management responsibility system and related systems, clarify management authority, and form a clear plan, construction, maintenance, and supervision departments rights, responsibilities and supervisory mechanisms.

4. Conclusion. In the overall planning of modern cities, the design of water supply and drainage is a very important task. Urban planning is to optimize the allocation of resources, and the focus of water supply and drainage engineering planning is to optimize the allocation and rational utilization of water resources to maximize comprehensive benefits. Whether the urban water supply and drainage design is reasonable and complete is directly related to the city's economic construction and people's basic living needs.

Therefore, when planning and designing urban water supply and drainage planning, we must be good at identifying problems and properly handle water resources, water environment, and water disaster problems that may be faced in urban development. Compiling high-quality urban water supply and drainage planning is not only a need for drainage engineering planning and design, but also a guarantee for the city to face the future and embark on the road to sustainable development. Water supply and drainage paper Part 2: "A trial discussion on municipal water supply and drainage construction"

Abstract: The quality of municipal water supply and drainage pipeline construction affects the lives of urban residents at any time. In order to ensure the quality of municipal drainage construction, water supply and drainage construction must be done well Safety measures and precautions are our top priority. Once problems arise in municipal drainage projects, they will have a great impact on citizens, and it will take a long time to solve problems in municipal water supply and drainage projects. Analyze the control quality of municipal water supply and drainage projects from a technical aspect to ensure the normal functioning of the water supply and drainage system, prevent obstacles that may occur during the construction process in a timely manner, and ensure the normal progress of the construction.

Keywords: Municipal administration; water supply and drainage; construction quality

With the continuous improvement of people’s living standards and the continuous development of social economy, new requirements have been put forward for the convenience of citizens’ water use. Therefore, municipal water supply and drainage projects have become a project that cannot be ignored in municipal construction. The construction and development of cities are inseparable from the construction of water supply and drainage pipeline projects. In order to ensure the steady development of cities, improving construction technology and construction quality during the construction of municipal projects is a key link. In the process of continuous improvement and development of urbanization level, water supply and drainage projects have a direct impact on urban environmental protection and urban flood control and drainage, so the technical requirements for their construction are also increasing. Problems with the construction quality of water supply and drainage pipeline projects may cause sewage to backflow. In the rainy season, waterlogging will occur in the city due to poor drainage, which will bring great inconvenience to people's daily lives and damage the image of the government. Strengthening the supervision and control of the construction quality of water supply and drainage pipelines in municipal projects is of great significance to the control of urban water pollution and the conservation and utilization of water resources.

1 Municipal water supply and drainage construction

Construction preparation stage. Municipal water supply and drainage projects are an important guarantee for urban planning, construction and development. As a basic project of urban construction, its quality, safety and reliability are related to the image of the city, and due to the complex construction environment in urban areas, there are also many underground pipelines in its underground structure. At the same time, it is susceptible to interference from various factors, which greatly increases the difficulty of water supply and drainage engineering construction. In order to improve the safety and reliability of the municipal water supply and drainage pipeline system, it is not only necessary to impose strict requirements on construction technology, but also to make corresponding preparations to ensure the construction quality of the project.

(1) Before the construction of water supply and drainage pipeline projects, factors such as the inspection results of various on-site technicians, types of work, materials and machinery and equipment, as well as on-site construction conditions, should be taken into consideration one by one. Construction technology, construction plans, organizational measures and preparation work are related to the smooth implementation of the project, and preparation is the top priority. Before project construction, staff must strictly review the designed construction drawings, etc. to avoid engineering obstacles that will have a greater impact on project quality and construction technology. At the same time, it is necessary to conduct an on-site survey of the construction conditions on site and design drawings based on the facts to avoid increasing the workload of subsequent construction due to inconsistencies between the design and the actual conditions. Construction personnel must use relevant technical means to conduct a comprehensive investigation and elimination of possible obstacles to avoid obstruction of construction due to conflicts between various underground pipelines and designs during construction. On the professional drawings, the construction requirements should be clearly defined, and discussions should be carried out with multiple parties to check for gaps and correct errors.

(2) Pipe quality is the basis for ensuring the quality of construction projects. Problems and defects that are prone to occur in various pipes must be strictly controlled. The quality of materials affects the normal and effective development of their water supply and drainage functions. premise and key. In order to effectively prevent and control water seepage and infiltration problems, the quality of pipes should be strictly controlled and supervised by professional technical personnel. During the construction process, due to the unique characteristics of the city and heavy traffic, necessary safety measures were set up to protect the workers and consider the travel safety of citizens.

From the perspective of sustainable development, the promotion of new plastic composite pipes in water supply and drainage projects with the characteristics of small pipeline friction, large drainage capacity, light weight, and convenient construction is in line with the national policy of replacing steel with plastic. However, due to the country's technological development, the materials used may also have a certain impact on the surrounding environment. Therefore, in addition to actively overcoming technical problems, we also need to negotiate with the local environmental health department when necessary.

2 Construction Stage

2.1 Pipe trench excavation

Before excavation, the center line and elevation of the original landform should be determined according to the relevant provisions of the technical specifications. , the original record of the corner. The existence of existing underground pipelines, cables and other structures at the construction site should be verified one by one, and their locations should be standardized, so that appropriate protective measures can be taken to protect their integrity. According to different soil conditions, different pipe trenches such as straight trenches, trapezoidal trenches, and mixed pipe trenches are excavated. The width of the trench excavation should be determined according to the excavation depth and pipe diameter. With the continuous improvement of science and technology, the level of mechanized construction technology has been greatly improved. Mechanical construction has replaced a large amount of human labor and has become an important method of engineering construction. People are still the operators of machinery, and the relationship between people and machines should be coordinated. , Complete the construction with quality and quantity. During construction, weather changes should be monitored to prevent long-term accumulation of water in the trench and the formation of floating pipes. Considering that too long exposure time of the base tank will cause deformation of the base tank, the drying time should be shortened as much as possible. When the trench excavation is about to end, preparations for stabilizing the pipeline foundation should be made in advance, and the concrete foundation formed by the gravel should be controlled and analyzed, and various quality hazards that arise during the construction process should be dealt with in a timely manner. The gravel cushion is laid and compacted in strict accordance with the standards, and concrete with a certain stiffness and stability designed by the designer according to the actual situation and engineering requirements is poured on the laid gravel cushion. Because the structure under the ground is not static, excessive excavation during mechanized construction should be prevented. Once it occurs, it should be backfilled and compacted in time, and any work errors that occur should be dealt with in a timely manner.

2.2 Pipeline installation

After the pipes arrive at the site, they must be inspected by specialized technical personnel before they can be used in the project. In order to effectively ensure the tightness of the pipeline, it is necessary to ensure that the quality of the pipe is qualified and that the sealing ring is intact. Pipe installation and docking generally relies on the external pulling method at the top of the pipe and the internal pulling method inside the pipe to gradually connect the two pipe sections together. In order to prevent the pipes from disturbing the base from colliding with each other, it is necessary to ensure that the pipe sections are lowered smoothly and slowly. Therefore, there should be a dedicated person to direct the pipe laying and lowering. The pipes must be firmly padded after being placed. The specific method can be to fill the woven bag with gravel or yellow sand, seal it and press it on the top of the arranged pipe. When laying pipes, make sure there are no debris on the surface and the inside is clean. After the pipeline laying stage is completed, inspection and acceptance will be carried out. Once the inspection results are qualified, the construction of concrete pipe seats and interfaces can be carried out. In order to ensure the stability of the axis position of the arranged pipeline when the interface is closed, pipe stabilization measures must be taken to prevent the axis from shifting. After the pipeline is connected, the elevation and axis of the pipeline should be reviewed to make it meet the requirements. When installing, make sure the inner wall is flush and the alignment is accurate. The weld surface is smooth, full and uniform, and the misalignment error is less than 0.2 times the wall thickness. Its width, surface reinforcement, undercut, misaligned edges, etc. all meet the design specifications. The welding quality of the pipeline must be tested by an oil penetration test and an X-ray non-destructive detector. Only when the test passes, the pipeline installation can be considered qualified.

2.3 Water closure test

After the pipeline is installed, make sure there is no accumulation of water in the pipeline trench, the reserved holes are sealed and there is no water leakage, and there are working technicians to check the pipeline and Check whether the appearance quality of the well is up to standard. If it passes the inspection, before backfilling the pipe trench, hydraulic pressure tests must be conducted on gravity flow, pipes designed to require closed water, and pressure pipes. Among the various methods for testing the construction quality of drainage pipelines, the closed water experiment is the most intuitive and effective method to detect the construction quality. The drainage pipes are tested in sections from upstream to downstream.

After the test is soaked in water for one day, the test water head according to the experimental requirements reaches the specified water head, and the continuous water seepage amount of the pipeline is observed for more than half an hour. Whether the measured water seepage amount meets the allowable water seepage amount stipulated in the drainage pipeline closed water test construction requirements specification. Check the leakage resistance of each pipeline to see if there are water seepage parts, leaks, cracks, etc. The closed water test can also measure the tightness of each pipe connection interface. If leakage is found, repair measures should be taken promptly. Cement slurry can be prepared to repair and fill the leakage point.

3 Key points of quality control in municipal water supply and drainage construction

In urban municipal water supply and drainage projects, the most important link in quality control of the entire municipal water supply and drainage project is the construction stage. Controlling the construction quality of municipal water supply and drainage projects is a guarantee for the safety measures of the entire project. In order to meet the required conditions for pipeline installation, the road foundation there should be appropriately adjusted based on the design requirements and longitudinal position of the pipeline. When water supply and drainage pipelines pass through soft soil areas, pressure pipes generally use flexible pipe interfaces to enhance their deformation ability, and appropriate foundation treatment and anti-corrosion measures are taken. For strict anti-corrosion treatment of pipelines, pipe products with good anti-corrosion performance should be selected. When excavating pipe trenches, appropriate technical measures must be taken to protect the foundation treatment results from damage, and the backfill soil must be strictly controlled.

4 Conclusion

In order to ensure the quality of municipal water supply and drainage construction, the person in charge of the project needs to carefully and strictly control the construction links of each project. The construction technology and quality of municipal water supply and drainage projects during construction must be repeatedly inspected, which is related to the quality of the entire water supply and drainage project. Only by adopting scientific and advanced construction technology can the construction quality of water supply and drainage projects be effectively controlled, and the municipal drainage system can function normally and effectively after the construction is completed. At the same time, we can learn from the design of water supply and drainage systems in large cities abroad to improve the problems faced by our country and improve the quality of municipal projects.

References:

[1] Zhang Shengshuang. Brief analysis of municipal water supply and drainage construction quality control technology [J]. Science and Technology Innovation and Application, 2014(08).

　[2] Political Commissar Pan. Discussion on Optimization of Construction of Municipal Water Supply and Drainage Pipeline Projects[J]. China New Technologies and New Products, 2011(22) Water Supply and Drainage Paper Part Three: "Construction Management of Water Supply and Drainage Projects"

Abstract The construction management of water supply and drainage projects mainly takes construction and construction projects as the management objects, and continuously carries out comprehensive system management and optimized management and control activities, that is, from the beginning of the construction project to the completion of the project, through a series of project control and management Measures to ensure the smooth realization of quality management objectives, cost management objectives and safety management objectives. In order to fully ensure the construction quality, the three stages of pre-construction, during construction and post-construction in the water supply and drainage project are described below.

Keywords water supply and drainage engineering; construction; management

1. Construction preparation stage

1.1 Do a good job in joint review of drawings

Joint review of drawings It is an important part of the construction preparation stage. Doing a good job in drawing review can effectively promote the normal progress of water supply and drainage construction. According to the basic characteristics of water supply and drainage projects, the following aspects should be paid attention to: whether the design drawings comply with national technical specifications and standards, the specific provisions of local relevant policies, and whether they meet the basic requirements of the construction unit; whether the design has the technical conditions for construction, and whether Whether technical construction safety can be ensured when using advanced technical measures and construction techniques; whether the coordinates, elevations and dimensions on the design drawings meet the requirements of actual building components, whether the installation position of sanitary ware equipment is appropriate, and the specifications and dimensions of materials, etc. Whether it meets the prescribed basic requirements; the specific locations of fire protection equipment and infrastructure should be reported to the local competent authority in advance for review and approval, and specific construction requirements should be determined; coordination between various disciplines should be strengthened, and holes should be reserved and buried for civil construction Technical briefing work on equipment installation location.

1.2 Strengthen construction organization design

The contractor should strengthen construction organization design and submit specific construction plans to the supervisor and owner for review. The construction organization plan should highlight the basic principles of feasibility, rationality and safety of the design drawings, focus on the technical and quality measures of the organization plan, whether it fully meets the basic conditions and specific requirements stipulated in the contract, and ensure safe and civilized construction. Ensure compliance with the relevant provisions of relevant specifications; engineering professional and technical personnel should carefully master the content of design drawings, relevant acceptance specifications, etc., and conduct strict review of the construction organization design submitted by the contractor. The review objects are mainly the professional engineering part and the contractor's division. For the contract engineering part, we need to have a detailed understanding of the comprehensive technology and management level of the construction company in order to carry out focused pre-control and management efforts.

1.3 Strict quality control of materials and equipment

For materials and equipment required for water supply and drainage construction, the construction unit must fill in the "Engineering Material Usage Approval Form" before construction. In order to ensure that the materials and equipment are If the quality and various performance indicators of the equipment meet the requirements of technical standards, the purchasing department should be arranged to conduct unified procurement and management. Procurement should be based on the specifications, models, etc. and construction requirements specified in the drainage design and construction drawings. The purchased materials and equipment must have relevant certification materials such as certificates of quality, warranty certificates, and relevant test reports. Special materials must be inspected by the relevant quality inspection department. Before use, all materials and equipment transported to the construction site must be protected against rain and moisture.

2. Management work during the construction stage

2.1 Do a good job in organization, coordination and management

The water supply and drainage project occupies a relatively small part in the overall building project. proportion, but it involves a wide range of areas, complex processes, and many types of professional work, so organization, coordination and management must be strengthened. The approval procedures for concrete pouring should be strictly followed, and professional engineers should provide on-site guidance, coordinate civil engineering and water supply and drainage installation operations, and focus on the specific locations and actual sizes of reserved and pre-embedded holes to avoid subsequent construction due to civil engineering reservations. Error in pre-embedding and digging out wall panels resulted in rework. The construction unit should communicate with the design unit in a timely manner in order to promptly overcome many technical and management problems during the construction process. Design changes should be strictly controlled. Design changes must be implemented after careful analysis and discussion by multiple parties. In addition, concrete pouring can only be carried out after the signature and confirmation of a professional water supply and drainage engineer.

2.2 Make reservations and pre-embedments for civil construction.

In order to prevent subsequent construction from floor excavation and serious damage to the building structure, pipes should be passed through the floor during civil construction. Appropriate holes must be reserved at the location, and appropriate casings must also be embedded at the specific locations where the pipes pass through the basement exterior wall to avoid leakage in the exterior wall. Therefore, it is necessary to strictly cooperate with civil construction and ensure that the reserved locations for pipeline crossings, embedded holes, brackets, and steel components fully meet the design requirements. It should be ensured that the top of the casing embedded in the floor where the pipeline crosses the floor is 20mm higher than the decorative floor. The top of the casing embedded in the kitchen and bathroom should be 50mm higher than the decorative floor. At the same time, the bottom of the casing should be Keep the casing flush with the bottom of the floor and embedded in the position where it passes through the wall. Keep its two ends flush with the surface. It is prohibited to dig holes at will. According to the basic requirements of the design and construction drawings, carefully grasp the size of the pipe fittings. Before concrete pouring, a sample drawing of the reserved casing should be made as a reference to guide the construction of the pre-embedded reserved holes.

2.3 Do a good job in decoration and construction of the main structure

Decoration and construction of the main structure is an important link in the construction of water supply and drainage projects. The pipelines pass through the expansion joints, settlement joints, etc. of the main structure and are then poured. A compensation device must be installed when belting. Before installing the riser, it is necessary to open up the pre-embedded holes in various parts of the riser, hang the wire vertically from top to bottom, and accurately measure the vertical centerline of the riser as a reference line for installing the riser.

After the construction of the riser is completed, it should be strictly checked whether it meets the verticality and distance ratio requirements between walls, and whether it meets the specific requirements of design and construction. After it is determined that everything meets the standards, use pipe clamps to fix it, and follow the design and construction specifications. Repair the holes in all locations. The drainage riser should be provided with an inspection port at its center about 1.1m from the ground in accordance with the design regulations. At the same time, appropriate buttresses should be set at the bottom of the drainage riser according to specific requirements. The gap between the casing and the pipe should be filled with flame-retardant fine materials until the end surface is smooth, and ensure that the pipe interface is not set inside the casing. After the construction is completed, the drainage pipes in the ceiling and walls should be tested through strict closed water tests; drainage risers, main pipes, etc. must be subjected to strict ball-passing tests to ensure that concealed engineering procedures are accepted in a timely manner if they meet the requirements. Work.

2.4 Strengthen the quality control of concealed projects

The quality of pipes, pipe fittings and equipment in the water supply and drainage system must meet the requirements of the design and construction regulations. Check carefully whether the pipelines are smooth before confirming Carry out construction, and then recheck whether the pipeline is unobstructed after the construction is completed; the water supply pipeline of the concealed project must be strictly tested for water flow, and the water supply pipeline after installation must be tested through a pressure test in accordance with relevant regulations and standards. Before concealing, check whether all aspects are omitted according to the requirements of the drawings, and whether the installation location, operation method, etc. meet the design specification requirements. The concealment work of the project can only be carried out after passing the water pressure, water closing and water filling tests, and passing the acceptance inspection.

3. Post-construction management

Strictly control the quality and acceptance after construction, do a good job in collecting and organizing project information, and carry out the project in accordance with special acceptance specifications and standards In particular, it is necessary to strengthen the quality acceptance of concealed projects and inspected projects, discover problems in a timely manner, find out the causes and deal with them according to reasonable procedures, or adopt various measures and methods to adjust and rectify various problems and hidden dangers. Nip it in the bud, and wait until all corrective measures are accepted before proceeding to follow-up processes or sub-project construction. Only after all tests and acceptances meet the prescribed standards can the acceptance work of sub-parts and sub-projects be carried out. Before the completion of the project is accepted and handed over, the collection and organization of project data must be strengthened to ensure the reasonable operation and management of the water supply and drainage project.

4. Conclusion

Water supply and drainage projects must strictly comply with the specific requirements of national technical standards to ensure full compliance with relevant construction quality acceptance specifications. In order to meet the ideal construction management level, design and construction management should be strictly organized, process quality control of each process and link should be strengthened, the difficulties in construction management should be highlighted for improvement and innovation, and construction quality management measures should be continuously improved to ensure The overall construction quality of water supply and drainage projects.

References

[1]Xiong Xiangjie. Brief analysis of existing problems and control measures in water supply and drainage projects [J]. Fujian Building Materials, 2007, (06).

[2] Liu Yang, Song Dequan. A brief discussion on safety and quality management in building water supply and drainage construction [J]. China New Technologies and New Products, 2009, (04).

[3] Ge Xianping. A brief discussion Measures to ensure the quality of building water supply and drainage construction [J]. China New Technologies and New Products, 2009, (06). You may also like:

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