Research And Design On The Dam Safety And Reinforcement Of The Xigou Reservoir In Zanhuang County Meng Jia Zhuang

Zanhuang County Meng Jia Zhuang Xigou reservoir located in Zanhuang County Xi Yang Ze Xiang Meng Jia Zhuang Cun Cun Xi 1.0KM office, located in the upper reaches of the river Ziya River system the Fuyang River Basin in the Ji River tributaries Yan Hua Temple, control drainage area 1.65km2, with a total capacity of 40 million m3, Hennessy capacity of 23 million m3, is a flood control, irrigation of small(2) type reservoir. Meng Jia Zhuang Xigou Reservoir since 1956 put into use, in flood control, irrigation and improve the local ecological environment play significant benefits, especially "96.8 flood, due to reservoir flood peak, for people’s life and property safety of downstream provides a powerful guarantee. But after years of running and engineering there is a serious security problem: dam seepage stability does not meet the requirements; there was no door on the dam and downstream, crest width is only 0.4m, uneven; spillway on both sides of the rock mass weathering serious fragmentation, slide and collapse; status of water conveyance tunnel has been blocked, lost water drainage function.Starting from the Meng Jia Zhuang Xigou reservoir dam are the main dangerous problems, from the danger of reservoir dam reinforcement work were a series of research:(1) overview, embankment dams in China of dangerous reservoirs reinforcement problems, Meng Jia Zhuang Xigou reservoir are mainly the dangerous problems analysis.(2) a brief analysis of the basic situation of meteorological and Hydrological Geology Engineering Xigou reservoir;(3) calculation of Xigou reservoir level review and dam safety review;(4) strengthening design analysis, Xigou reservoir dam slope stability of dam and dam foundation seepage stability analysis and reinforcement;(5) of the dam reinforcement scheme, geological, hydrological selected permeability and structural stability required etc.Carried out a comprehensive calculation and analysis, the rationality of the scheme and the ultimate implementation of scientific basis.Engineering practice proved that regulation reservoir disease is sometimes more complicated than building a dam, as the aging dam repair in the 1960 s, these dams need reinforcement. The results of this study can provide some reference for other similar engineering research.