考虑裂隙统计分布的膨胀土边坡稳定分析和加固设计  

Stability analysis and reinforcement design of expansive soil cracked slope based on crack information statistics

作　　者：宁昕扬 曾俊 吕国梁 NING Xinyang;ZENG Jun;LYU Guoliang(Changjiang Survey,Planning,Design and Research Co.,Ltd.,Wuhan 430010,Hubei,China)

机构地区：[1]长江勘测规划设计研究有限责任公司,湖北武汉430010

出　　处：《水利水电技术（中英文）》2022年第S01期436-441,共6页Water Resources and Hydropower Engineering

基　　金：国家重点研发计划项目(2017YFC1501204)

摘　　要：膨胀土具有胀缩性和有裂隙性,某工程沿线存在大范围的膨胀土开挖边坡。针对考虑裂隙的膨胀土边坡稳定问题,建立了基于裂隙分布统计的滑动面强度计算公式,提出了一种考虑裂隙分布统计的膨胀土边坡稳定分析方法,并以分水岭段膨胀土渠段的典型断面为例,分析了膨胀土边坡稳定性并进行了加固设计,可为类似工程提供参考。Expansive soil has swell-shrink characteristic and cracks,and there is a wide range of expansive soil excavation slopes along a project.In this paper,aiming at the problem of the stability of expansive soil slopes considering cracks,a formula for calculating the strength of sliding surfaces based on crack distribution statistics is established,and an analytical method for the stability of expansive soil slopes considering statistics of crack distribution is proposed.The typical section of the canal is taken as an example to analyze the stability of the expansive soil slope,and the reinforcement design is carried out,which can provide a reference for similar projects.

关 键 词：膨胀土 裂隙分布统计 边坡稳定分析 加固设计 

分 类 号：TU443[建筑科学—岩土工程]