晋城市病险土石坝现状分析及整治措施

Analyzing Present Situation of Diseased And Dangerous Earth-rock Dams in Jincheng City And Its Reconstruction Measures

截止1999年晋城市共建成土石坝102座,对现有土石坝进行调查统计后得知,全市中小型水库均不同程度地存在病害问题,故对土石坝病险工程的整治成为突出的问题。文中通过对土石坝主要病害分析认为,其病害可分为渗漏、坝身滑坡塌陷、坝体裂缝、输水涵管损坏、溢洪道损坏、护坡损坏、大坝设计标准不达规范要求,水库长期处于低水位运行等。文中分析了病害原因并论述了相应的整治措施。

By the end of 1999,there are 102 earth-rock dams completed in Jincheng City.Investigation and statistics of these dams indicate that all of these small or middle reservoirs are diseased in varying degrees.Therefore,reconstruction of these diseased and dangerous works has become outstanding problem.Through the analysis of the main disesaes,this paper introduses that the diseases includes:seepage through dam body,dam foundation and around the dam abutment;sliding,caving and cracking of dam body;destroyed culvet,spillway and dam revetment,not meeting the demand of national code,operation under low water level for a long time.The formation causes of diseases are showed up in this paper,and the reconstruction measures are narrated too.