崩坡积体滑坡力学参数研究及处置措施  

On Mechanical Parameters of Colluvial Landslide and Its Disposal Measures

作　　者：王文峰 WANG Wenfeng(Jinan Design Institute of China Railway Engineering Design Consulting Group Co.,Ltd.,Jinan 250000,China)

机构地区：[1]中铁工程设计咨询集团有限公司济南设计院,济南250000

出　　处：《路基工程》2024年第1期74-79,共6页Subgrade Engineering

摘　　要：基于某山地中型崩坡积体牵引式滑坡,采用反分析法研究抗剪强度参数对于稳定系数的敏感性,结合室内试验确定黏聚力和内摩擦角两组参数,并提出有效的治理措施。结果表明:反分析法得到的滑带土剪切强度参数更符合滑坡的变形情况;内摩擦角是影响滑坡稳定安全系数最为敏感的因素;反算值必须根据实际情况予以折减;滑坡的治理不仅要实施支挡措施,还要重视滑坡的综合排水措施。Based on a middle-sized traction landslide in the mountain,the sensitivity of shear strength to stability coefficient was studied by the inverse analysis method.Two sets of parameters of cohesion and internal friction angle were determined by the laboratory test,and effective treatment measures were put forward.The results show that the soil shear strength parameters in the sliding zone obtained by the reverse analysis are more consistent with the deformation of the landslide.The internal friction angle is the most sensitive factor affecting the safety coefficient of landslide stability.The inverse value must be reduced according the actual situation.The control of the landslide should not only implement the support measures,but alse pay attention to the comprehensive drainage measures of the landslide.

关 键 词：滑坡 滑带 敏感性 稳定性 黏聚力 内摩擦角 

分 类 号：TU478[建筑科学—结构工程]