Optimization Of The Design Of Reinforcement Of Three Pit Reservoirs

Sankeng Reservoir is located in the northwest of Huadu District,Guangzhou City,is a mainly irrigation,both flood control,soil and water conservation function of medium-sized reservoirs.At present,there are many safety problems in the reservoir.First of all,the main dam water conservancy project quality is poor,many times leakage,after several reinforcement,failed to completely solve the problem,the current gate is damaged,the boom hanging ear rust serious,no water,leakage,The main dam seepage observation equipment damage,automatic monitoring system can not run normally.Secondly,there is a long time there is no water in the vicinity of 2 # dam dam,and the water flow is clear and no sediment.The seepage quantity changes with the water level of the reservoir,the cracks of the concrete slabs on the upper reaches are more serious,the concrete aging is serious and the lower masonry slope is loose.3 # auxiliary dam upstream concrete cracks more;3 # auxiliary dam water transfer culvert opening and closing equipment aging,gate and hoist corrosion serious,concrete structure,aging cracking and exposed phenomenon.Third,there is siltation in the spillway.From the reality of the sankeng reservoir,this paper combined with the relevant authorities about the present situation of the dam quality check situation of the current situation and evaluation of field investigation report,the design of reservoir and consolidate the hydrological and geological conditions,the dam seepage,the hydraulic and structure are studied the calculation analysis,determination of reservoir and consolidate optimization scheme is as follows:1.The main dam is made of concrete-shaped concrete cut-off wall for anti-seepage treatment,and the water inlet and outlet section is demolished and reconstructed,and the inlet,gate chamber and import connection section are rebuilt.2.2 # Vice dam with plastic concrete cut-off wall for anti-seepage treatment,Yingpo slope removal of the original concrete slope protection,crest road surface transformation for the cement concrete pavement,Yingpo slope side reconstruction wave wall;3.3 # deputy dam to cover the slope of the original concrete slope reconstruction,crest road surface transformation for the cement concrete pavement,water transfer demolition removed;4.Spillway import section of the puzzle,the power of the pool for dredging.The results of this study are not only important for the reinforcement of the Sankeng reservoir,but also provide some reference for the research of similar projects,and provide reference for the improvement of the theory of dam reinforcement technology.