in p>1933, in order to connect the roads and railways on both sides of the Qiantang River, the people planned to build a Qiantang River Bridge. Mao Yisheng, a bridge expert, beat Walter, an American expert, to win the bid with the design of a double-deck bridge for roads and railways. Nevertheless, the outside world is still very skeptical about China people building a bridge on the Qiantang River. From the early stage of construction, the bridge frequently encountered setbacks. First, the piling boat sank on the rocks, then it was difficult for the stakes to penetrate into the hard rock and soil layer at the bottom of the river, and the problem of piling was finally solved. Then the caisson used for pier construction went wrong again-it was washed away by the tide for four times in a short time. During the difficult period of the project, Mao Yisheng was in a trance. In his diary, Mao Yisheng wrote these words: I have been running day and night for the Qiantang River Bridge, and I am nervous, frowning, smiling, and sometimes eating and sleeping. Soon after I started work, I repeatedly encountered various difficulties, as if the whole plan was wrong, which made me fidgety. Mao Yisheng is not only under great pressure from Mao Yisheng, but also from Zeng Yangfu, who has been pushing for the opening of Mao Yisheng. He once said to Mao Yisheng, "If the Qiantang River Bridge can't be built or not, you Mao Yisheng will be the first person to jump over the Qiantang River, and then I, Zeng Yangfu, will jump on. "Mao Yisheng answered Zeng Yangfu in this way at that time, and I will never take a half step back when building the bridge. The success or failure of Qiantang River Bridge is not my personal affair, but a major event that can make a difference for the Chinese nation. After Zeng Yangfu, Mao Yisheng devoted all his energy to solving the caisson problem. He spends almost all his time in the construction site and the office, and hardly has a weekend or a holiday, and even his children can't accompany him. During the period of repairing the bridge, Mao Yisheng once went home once. When he saw his second son, he picked him up and asked him if he wanted his father. The child answered yes without thinking! Mao Yisheng asked again, do you like dad? Hearing this question, the child replied, I don't like it, because you never go home. After Mao Yisheng and his family sacrificed a lot of time to accompany their children to grow up, Mao Yisheng made a great breakthrough in his work. He finally found a way to prevent caisson from drifting. He increased the weight of the four rivets for pulling caissons, from the original steel rivets to concrete ones. The weight of caisson has also increased from 6 tons to 9 tons. After the caisson was settled, everyone's mood gradually stabilized. In 1913, Mao Yisheng took a photo with his family in Nanjing (his father Mao Naideng in the front row, his mother Han Shiqu in the right row, and Mao Yisheng in the third right row). Mao Yisheng's mother Han Shiqu was the eldest daughter of a scholar named Han Fukun in Zhenjiang during the Guangxu period. Han Fukun was good at ancient paintings and poems, and his plum blossoms were very famous in the local area. Therefore, although Han Shiqu is a girl, she has also read and written since she was a child. During that time, Han Shiqu saw that Mao Yisheng was very anxious, so he enlightened him and said: When Tang Priest went to the Western Heaven to learn Buddhist scriptures, he experienced 81 difficulties. Your word is Tang Chen, and you will experience 81 difficulties in building Qiantang River Bridge. Like the Tang Priest, you should not rely on your own wisdom, but also find the Monkey King. This "the Monkey King" is the Buddha of the Newcomer. Lailaifo was a teacher in Xiaoshan Primary School at that time, whose real name was Pei Qi. Lailaifo was the pseudonym he used to write for some local media. After the construction of Qiantang River Bridge, the newcomers were very concerned about it, but they didn't get to know Mao Yisheng. In order to attract the attention of the Bridge Engineering Department and Mao Yisheng, Newcomer Buddha published 7 articles in Zhejiang News, entitled "The Relationship between Qianjiang Water Potential and Qianjiang Bridge —— Looking for the Attention of Water Conservancy Authorities and Bridge Engineering Committee". Mao Lao was overjoyed when he read articles such as The Origin of Qianjiang River System, Rivers in the Past and Present, Reasons for Siltation of River Sand, My Opinion on Scouring Degree, Blocking Force of Pier and Statement of Remedial Scheme, and immediately invited Mr. Buddha to join the Bridge Engineering Office as the supervisor of caisson construction site on the South Bank. With the help of Buddha, the tide of Qiantang River is no longer an obstacle. Not only that, but also the tide of Qiantang River has become a helper in bridge construction. At the time of high tide, Mao Yisheng transported the steel beam between two adjacent piers by boat. After low tide, the steel beam naturally landed on the pier, saving time and effort, and the progress was greatly accelerated. If building a bridge is the true scripture that Mao Yisheng wants to obtain, the difficulty in the process of building a bridge is naturally the eighty-one difficult that he has to go through. What difficulties did Mao Yisheng encounter in the construction of Qiantang River Bridge? For more exciting content, please pay attention to the headline number of "Hubei Satellite TV Secret" tomorrow!