某水库溢洪道边坡稳定性分析  

Stability Analysis of Spillway Slope of A Reservoir

作　　者：刘蓓 LIU Bei(Henan Water Conservancy Survey CO.LTD.Zhengzhou 450008,China;Control Engineering Technology Institute of Special Geotechnical Environment of Henan,Zhengzhou 450008,China)

机构地区：[1]河南省水利勘测有限公司,河南郑州450008 [2]河南省特殊岩土环境控制工程技术中心,河南郑州450008

出　　处：《河南水利与南水北调》2021年第9期54-56,共3页Henan Water Resources & South-to-North Water Diversion

基　　金：河南省水利厅2020年度水利科技公关项目(GG202005)。

摘　　要：文章以某水库溢洪道块状岩质边坡为例,分别采用斜坡类比法、极射赤平投影法、楔体法对其稳定性进行分析判别,多种方法综合分析认为,该溢洪道边坡按照拟定坡比开挖后将处于不稳定状态,需对其进行治理加固,为工程优化设计与边坡加固治理提供参考依据。目前对边坡稳定性判别除了文中用到的几种方法外,常用的还有调查统计法、查表法、数值分析法等等。各种方法均有各自的局限性,在实际工程中,尽可能多的采取不同方法来进行边坡的稳定性判别分析,才可以经济合理的针对边坡进行治理及加固。Taking the massive rock slope of a reservoir spillway as an example,the slope analogy method,stereographic projection method and wedge method are used to analyze and distinguish its stability.According to the comprehensive analysis of various methods,the slope of the spillway will be in an unstable state after excavation according to the proposed slope ratio,which needs to be treated and strengthened.It provides reference for engineering optimization design and slope reinforcement.At present,in addition to the several methods used in this paper,there are commonly used survey statistics,table lookup,numerical analysis and so on.Each of these methods has its limitations.In practical engineering,different methods should be adopted to discriminate the stability of slope as much as possible,so that the slope can be treated and strengthened economically and reasonably.

关 键 词：块状岩质边坡 稳定性 斜坡类比法 极射赤平投影法 楔体法 

分 类 号：TV221.2[水利工程—水工结构工程]