瓦托水电站坝基抗滑稳定研究  

Study on the stability against sliding of dam foundation for Watuo hydropower station

作　　者：齐立伟[1] 都兴洋[1] 郑玉玲[1] 宁卫琦 

机构地区：[1]中水东北勘测设计研究有限责任公司,吉林长春130021

出　　处：《东北水利水电》2017年第7期13-15,共3页Water Resources & Hydropower of Northeast China

摘　　要：瓦托水电站厂房为坝后式厂房,受引水管道底高程控制采用上游建基面高、下游建基面低的布置方式,导致坝基抗滑稳定计算存在沿坝基的双滑面滑动问题,本文拟定了3种传递方式,并分别进行抗滑稳定计算,最终的计算结果表明,采用坝基应力分配法比采用自重分配法抗力作用比系数可提高约10%,坝体自重分配法过于保守,不能真实地反映坝基岩体的载荷分布情况,因此对于特殊双滑面采用坝基应力分配法比较合理。With the power house behind dam,the arrangement form of the Watuo hydropower station adopts the high foundation plane in upstream and the low foundation plane in downstream because of the bottom elevation control of the water diversion pipeline,which leads to the sliding problem of the double sliding surface along the dam foundation in the stability calculation against sliding of the dam foundation.In this paper,three kinds of transmission methods are drawn up,and the anti-sliding stability calculation is carried out respectively.The final calculation results show that the resistance action ratio coefficients of the dam foundation stress distribution method can be increased by 10% than the weight distribution method.The dam body weight distribution method is too conservative,which cannot reflect truly the load distribution of the dam foundation rock.Therefore,it is reasonable to use the dam foundation stress distribution method for the special double sliding surface.

关 键 词：重力坝 坝基 双滑面稳定计算 抗力作用比系数 瓦托水电站 

分 类 号：TV698.231[水利工程—水利水电工程]