辽宁工程技术大学学报（自然科学版）2023，Vol.42Issue(5)：538-547,10.DOI:10.11956/j.issn.1008-0562.2023.05.004
降雨强度对含软弱夹层边坡失稳破坏临界长度影响
The influence of rainfall intensity on the critical length of instability failure of slope with weak interlayer
摘要
Abstract
For the study of rainfall intensity on the influence of the rock slope with weak interlayer sliding range,considering including soft rock slope inclination angle and strata relations and the location of joints,graphic method was used to deduce the rainfall instability of the slope with weak intercalated critical length formula,analyze the key factors on the slope instability critical length,the influence of different cases of slope instability critical length expression,and verify it through the actual engineering.The results show that the relationship between the critical length of slope failure and the rainfall intensity function is expressed in different ways under the influence of slope angle,rock stratum inclination angle and fracture location.In the rain-induced slope,the rock strength parameters c,φ and the critical slip length of the slope show an inverse trend.The critical length of slope slip increases with the increase of water depth and rainfall intensity,and the critical length tends to be stable when the rainfall intensity increases to the maximum capacity of the fracture.The calculated value of the formula and the measured value are within the error range.关键词
边坡工程/岩质边坡/降雨强度/临界长度Key words
slope engineering/rock slope/rainfall intensity/critical length分类
土木建筑引用本文复制引用
宋洋,马旭琪,牛凯,谢志辉..降雨强度对含软弱夹层边坡失稳破坏临界长度影响[J].辽宁工程技术大学学报（自然科学版）,2023,42(5):538-547,10.基金项目
国家自然科学基金项目(51974146,52174078) （51974146,52174078）
辽宁省自然科学基金项目(2019-ZD-0042) （2019-ZD-0042）
