Generally speaking, for alleys or temporary roadways within the range of 30-50 meters, supplementary construction safety technical measures can be compiled.
If it is a long roadway, it needs to be arranged according to the succession 7 days in advance, and the excavation operation procedures should be compiled in time, and sent to the joint review for signature, and then the team will organize the study and implementation.
The situation you mentioned belongs to the delay in compiling excavation operation regulations, which is generally not allowed. Sometimes it may be that the excavation project plan changes too quickly. Then, temporary construction measures are generally used first, that is, not to delay the project, to prepare a temporary construction measure first, to last for two or three days, to speak first, to make preparations and so on.
Therefore, in this sense, it is generally not more than 30 meters to 40 meters, and construction must be carried out in accordance with the excavation operation procedures, not construction measures. Otherwise, it is not standardized. The superior department considers it necessary to impose a fine on the relevant personnel of the technical line.