路基工程
路基工程
로기공정
SUBGRADE ENGINEERING
2012年
3期
146-150
,共5页
南山滑坡%滑坡特征%影响因素%成因机制%极限平衡法%内摩擦角%稳定性
南山滑坡%滑坡特徵%影響因素%成因機製%極限平衡法%內摩抆角%穩定性
남산활파%활파특정%영향인소%성인궤제%겁한평형법%내마찰각%은정성
Nanshan rock landslide%landslide characteristics%affecting factor%genetic mechanism%limitequilibrium method%angle of internal friction%stability
在收集开县地质结构、地形地貌以及水文地质等资料的基础上,研究了开县南山滑坡的滑体、滑带、滑床特征,得出其为一典型的顺层岩质滑坡;并分析了该顺层岩质滑坡的形成机制。而后确定权重因子利用极限平衡法计算得知,滑坡目前基本稳定,但在暴雨和地震工况下滑坡处于不稳定状态。通过敏感性分析可知,内摩擦角φ值是影响滑坡稳定性最为敏感的因素,必须治理。
在收集開縣地質結構、地形地貌以及水文地質等資料的基礎上,研究瞭開縣南山滑坡的滑體、滑帶、滑床特徵,得齣其為一典型的順層巖質滑坡;併分析瞭該順層巖質滑坡的形成機製。而後確定權重因子利用極限平衡法計算得知,滑坡目前基本穩定,但在暴雨和地震工況下滑坡處于不穩定狀態。通過敏感性分析可知,內摩抆角φ值是影響滑坡穩定性最為敏感的因素,必鬚治理。
재수집개현지질결구、지형지모이급수문지질등자료적기출상,연구료개현남산활파적활체、활대、활상특정,득출기위일전형적순층암질활파;병분석료해순층암질활파적형성궤제。이후학정권중인자이용겁한평형법계산득지,활파목전기본은정,단재폭우화지진공황하활파처우불은정상태。통과민감성분석가지,내마찰각φ치시영향활파은정성최위민감적인소,필수치리。
Based on the collected materials with respect to geologic structure, topography and hydrogeology of Kaixian County, the characteristics of sliding mass, sliding band and sliding bed at Nanshan Landslide in the County is studied, and then it is concluded to be a typical bedding rock landslide and its genetic mechanism is also analyzed. By use of weight factors and limit equilibrium method, the landslide is known to be stable basically but instable in case of heavy rain and seism. Through sensibility analysis, it is known that the angle ~o of internal friction is the most sensitive factor affecting the landslide stability, which had to be treated.
