The Technology Research For Composite Curtain Wall Of Anti-corrosion And Anti-seepage Of Nishan Reservoir

Nishan Reservoir is located in a small tributary of the River Si he River, Qufu City, Nigeria Shan territory, the maximum storage capacity of101million m3, including building dam, spillway, water holes and hydropower stations. After the completion of the reservoir, flood control, irrigation has played a certain role. However, due to the construction of dams on the gravel dam, the underlying limestone cavern, there is no reliable cutting seepage, dam seepage serious dam seepage deformation, the two sides repeatedly blanket natural dam cracks and collapse pits, have jeopardized the soil dam safety, long in dangerous condition. Therefore, we must carry out comprehensive and effective foundation seepage control in order to achieve the purpose of the dam Danger Paul.The topic for the engineering problems were dam collapse blanket testing, dam seepage calculation, vertical seepage research technology, complete anti-corrosion priming, research impervious modular walls, according to the nature of the dam foundation karst geological structure, fissures rate factors, taken a different seepage treatment options, cave-type argillaceous limestone bands with curtain grouting, suitable for larger cave throwing first-class ingredients and then fill grout; gravelly sand covering both sides of terraces and river channel section with concrete cutoff wall solution. The research topics include the following aspects:1. Several algorithms based on reinforcement before the dam seepage analysis and calculation, limestone caves, melting tank, melting grooves and fissures of seepage, because there is a strong anisotropy of rock fissures rate, permeability is also large, calculated according to the general hydrogeological greater difficulties. In order to demonstrate the reasons for the reservoir and leakage of collapse pits on both sides, we use a variety of analytical methods for analysis calculations.2.According to Benny Hill Reservoir dam foundation engineering problems and engineering geology, hydrogeology, as well as bedding dam collapse pilot study results should determine Benny Hill Reservoir dam seepage cutoff vertical solutions. Impervious to do deal with, just do the dam foundation rock grouting, overburden dam only do concrete cutoff wall, dam overburden and bedrock to do a combination of seepage curtain seepage treatment in case of comparative analysis.3.Slope stability calculations, respectively, pre-construction, construction process and after construction of the dam slope stability calculation carried out, and the stress and strain analysis.