圆弧滑动法在估算土坝水下坝坡沉陷位移的应用  

Application of Circular Slide Method for Estimating Settlement and Displacement of Underwater Dam Slope of Earth Dam

作　　者：杜智勇[1] 宋智[1] 王成山[1] 

机构地区：[1]辽宁省水利水电勘测设计研究院,辽宁沈阳110006

出　　处：《水运工程》2008年第6期42-44,共3页Port & Waterway Engineering

摘　　要：利用计算土坝稳定的圆弧滑动法,建立计算假定条件,运用假定条件,建立作业运算步骤,依据两次以上的测量成果,对永久隐蔽在水下的土坝坝坡工程沉陷位移量进行估算,获得了满意的估算成果。经过验算验证,满足实际工程的应用要求,可以在土石坝的水下坝坡设计和施工的稳定评价、工程量估算上广泛应用。Utilizing circular slide method for stability calculation of earth dam, this paper establishes calculation hypothese, based on which, the operation calculation procedure is proposed. According to more than two times＇ surveying data, the settlement and displacement of earth dame slope sheltered permanently underwater are estimated, and satisfactory t result are obtained. It is verified that the estimated result meet the demand of engineering, and can be applied to stability evaluation and engineering volume＇s estimation for design and construction of underwater dana slope of earth-rock dana.

关 键 词：沉陷位移 土石坝 土坝 测量 检测 水下坝坡 圆弧滑动 相关点 相似点 

分 类 号：TV641.2[水利工程—水利水电工程]