对康杨斜心墙坝渗压分布异常和下游积水来源的分析  

Analysis on Abnormal Pressure Distribution and Downstream Water Source of Kangyang Sloping Core Dam

作　　者：胡安静 张俊嵩[1] 唐燕[1] 胡正和[1] 吕高峰[2] HU An-jing ZHANG Jun-song TANG Yan HU Zheng-he LYU Gao-feng(Jangdu Administrative Office of Water Conservancy Project, Yangzhou 225200 , China Large Dam Safety Supervision Center of National Energy Administration, Hangzhou 311122 , China)

机构地区：[1]江苏省江都水利工程管理处,江苏扬州225200 [2]国家能源局大坝安全监察中心,浙江杭州311122

出　　处：《浙江水利水电学院学报》2017年第2期42-45,共4页Journal of Zhejiang University of Water Resources and Electric Power

摘　　要：康杨土石坝横断面上最下游的渗压水位大于其上游侧的渗压水位,不符合浸润线的一般分布规律.结合渗压计附近的电磁沉降管水位分析可知,渗压计测值存在偏差,浸润线分布合理,土石坝整体较安全.土石坝下游存在一积水点,结合下游积水、水塘、鱼塘和灌溉退水的水位高程及原始地质情况,分析认为渗水主要来自下游水塘和灌溉退水.Seepage pressure water level downstream is greater than the water level upstream on the cross section of Kangyang earth rockfill dam, which is not up to the general rule of saturation line. Based on the analysis of water level in settlement instrument near the osmometer, it is reported that there are errors in osmotic pressure gauge but the saturation line is rea-sonable and the earth rockfill dam is safe as a whole. There is also a water point in the downstream of the earth rockfill dam. Combined with the water level elevation and the original geological condition of the downstream water, pond, fish pond and ir-rigation water, it is concluded that the seepage mainly comes from the downstream reservoir and the irrigation water.

关 键 词：斜心墙坝 渗流 渗透压力 浸润线 沉降仪 

分 类 号：TV698[水利工程—水利水电工程]