Yu's savings and investment

(1) 1985 After the Ministry of Water Resources became the vice president, it saved a lot of money in the review of several projects: 1) It was proposed that the spillway floor of Liuduzhai and Maweizao reservoirs should be thinned; 2) The lining of the 2646m pressured tunnel of Guzhai Reservoir is cancelled except for the entrance and exit and the fracture zone of fault joints; 3) Strongly support the suggestion put forward by some comrades in the Provincial Academy, that is, the clay blanket thickness at the upstream of Tian Yao Dam can reduce the water pressure to improve the dam anti-sliding safety reserve, so that the hydropower station can avoid the secondary rework of the river course and save a lot of time and money; 4) It is proposed that the slag pool of Jiang Huo Power Plant under the stone at the entrance of the cave can reduce a large number of over-allocated steel bars; 5) During the review of Sanjiangkou Hydropower Station, the original "T" pier scheme was adopted to reduce the length of stilling basin; 6) Liuduzhai Power Station changed the tower intake into deep intake (combined with others) to protect the stability of the frequently dangerous hilltops; 7) In the urban water supply evaluation of Tieshan Reservoir, the steel pipe scheme was changed to the reinforced concrete thin-walled culvert with canal lining; 8) During the project reinforcement review, it is determined that most reinforced concrete inverted siphon pipes can continue to operate with cracks, and there is no need to replace new pipes.

In short, * * * saved about 50 million yuan (the price level at that time, the same below).

(2) After coming to Xiangyi Company of Provincial Immigration Bureau, I made the following suggestions:

-In 2002, the reinforced concrete thick-wall lining of Xiaoxinyan Tunnel on Xinbai Highway was changed to shotcrete and anchor support, saving 6.5438+0.3 million yuan;

—— In 2003, during the construction of Jiangshi levee in the reservoir area of Hongjiang Hydropower Station, a large number of weathered materials such as plates and shale appeared in the soil of the storage yard. Whether it can be used to build dikes is uncertain, and the construction unit is uncertain. According to the construction experience of clay cutoff wall of Lubuge Hydropower Station dam in Yunnan, China, this comrade thinks that weathered materials can be used, and there is no need to find another yard, which saves a lot of investment and avoids the delay of construction period.

—— In 2005, when evaluating the design of Xinbai Highway damaged by water, the block retaining wall was changed into inclined thin retaining wall, saving 3.05 million yuan, which was approved by experts of the Provincial Communications Department.

—— From June, 5438 to February, 2006, the roughness of the main canal in Huangshi Irrigation District was reduced after lining concrete, which led to a significant decrease in the water surface, which could not meet the water diversion requirements of the branch canal. It is planned to backfill mortar masonry on both sides of the main canal to raise the water surface to meet the needs of irrigation diversion. Total length of main canal in Huangshi irrigation area 100km (including main canal 19.8km). Backfilling mortar masonry requires a lot of money, building materials and time. At that time, it had entered the project implementation stage. Comrade Fu, director of Hunan Branch of China Irrigation and Drainage Development Center, found it difficult to make up his mind to ask for advice. He doesn't think this suggestion is appropriate, and suggests adopting aqueducts and tunnel bayonets along the main canal (the cross section of bayonets is smaller than that of the canal). Through backwater calculation, it is proved that the problem of branch canal diversion can be solved after backwater at high water level, and it is really unnecessary to backfill with masonry, saving a lot of money, building materials and time.