摘要
针对永宁高速公路的边坡病害,以石壁滑坡为依托,采用数值分析法,对缓倾顺层岩质边坡受主控结构面影响的沿基岩面的平面变形进行数值定量分析,其主要变形模式为岩体的拉裂滑移破坏。其病害是由于坡体不利结构面存在、工程开挖破坏坡脚和大气降雨所致。同时结合极限平衡法反分析,对滑坡各阶段的稳定系数及加固措施进行计算,结果表明,治理措施满足工程实际与规范的要求。
Aiming at the slope disease of Yongan-Ninghua Expressway,based on rock landslide,the numerical analysis method was adopted to perform numerical and quantitative analysis of deformation along base rock surface of gently inclined bedding rock slope under the influence of master control structure surface. Its main deformation mode is fracture sliding fracture of rock mass. Its disease was caused by adverse structural surface of slope,slope toe damaged by engineering excavation and atmosphere rainfall. Meanwhile,combined with limit equilibrium method,the stability coefficient and reinforcing measures of landslide in various stages were calculated. The results show that the treatment measures meet actual and specification requirements of project.
出处
《路基工程》
2016年第2期81-83,88,共4页
Subgrade Engineering
基金
福建交通科技项目(201207)
关键词
石壁滑坡
缓倾顺层
主控结构面
岩质边坡
数值反分析
处治对策
rock landslide
gently inclined bedding
master control structure surface
rock slope
numerical inverse analysis
treatment measure
