摘要
【目的】提出考虑渗流驱动力作用下的岸坡稳定的修正传递系数法。【方法】分析《重庆市地质灾害防治工程设计规范》(DB50 5029-2004)(后简称《规范》)中三峡库区岸坡渗流驱动力计算方法的不足,建立类土质岸坡渗流驱动物理模型,提出岸坡渗流驱动力精细化计算方法,考虑渗流驱动力修正了类土质岸坡稳定性计算的传递系数法。【结果】三峡库区凉水井滑坡实例分析表明,《规范》中的方法和本文方法得到的稳定系数分别为1.061和1.074,《规范》中的方法关于渗流驱动力计算过于保守。【结论】考虑渗流驱动力精细化计算方法对于大型、特大型岸坡稳定性计算具有实际工程意义。
[Purposes]It aims to propose the revised transfer coefficient method of bank slope acted by seepage force.[Methods]It analyzed the deficiency of seepage force calculation of the quasi soil bank slope in"Standard",and established the physical model of soil,and proposed the fine seepage force calculation method of the quasi soil bank slope,then revised the transfer coefficient method for the quasi soil bank slope thinking of the seepage force.[Findings]The case of Liangshuijing landslide analysis showed that stability coefficients by the"Standard method"and this paper's method respectively were 1.061 and 1.074;calculation about the seepage force by the"Standard method"was conservative.[Conclusions]Considering the fine seepage force calculation method has the practical engineering significance to lager-scale and super lager-scale bank slope stability calculation.
作者
唐红梅
周云涛
陈洪凯
TANG Hongmei ZHOU Yuntao CHEN Hongkai(Institute of Geotechnical Engineering, Chongqing Jiaotong University, Chongqing 400074 Technical Center for Geological Hazard Prevention and Control, CGS, Chengdu 611734 Institute of Exploration Technology CAGS, Chengdu 611734, China)
出处
《重庆师范大学学报(自然科学版)》
CAS
CSCD
北大核心
2017年第5期44-48,共5页
Journal of Chongqing Normal University:Natural Science
基金
重庆市自然科学基金重点项目(No.csct2013JJB30001)
国土资源部公益性行业科研项目(No.201511051)
中国地质调查项目(No.DD20160278)
关键词
渗流驱动力
修正传递系数法
类土质岸坡
三峡库区
seepage force
revised transfer coefficient method
the quasi soil bank slope
Three Gorges reservoir area