梅州大埔某残积土滑坡力学性质与稳定性评价

英文篇名：Mechanical Properties and Stability Evaluation of Resiual Soil Landslide of Dapu
中文刊名：嘉应学院学报
英文刊名：Journal of Jiaying University
作者：姚文花
英文作者：YAO Wen-hua(School of Civil Engineering ; Jiaying University ; Meizhou 514015 ; China)
中文关键词：残积土 ; 滑坡 ; 稳定性 ; 强度指标
英文关键词：residual soil ; landslide ; stability ; intensity index
出版日期：2011-05-28
机构：嘉应学院土木工程学院;
年：2011
期：05
出版单位：嘉应学院学报

摘要

梅州地区花岗岩残积土分布广泛,花岗岩残积土滑坡是威胁建筑安全的主要地质灾害,滑坡稳定性评价方法历来是工程地质领域的研究热点.针对这一问题,以梅州大埔某残积土滑坡为例,对该滑坡的土体进行了直接快速剪切试验,获得其强度指标,残积土试样浸水后抗剪强度降低,主要是粘聚力的减小,内摩擦角降幅很小.利用Slide滑坡稳定性计算软件对天然工况、降雨条件、地震条件下的稳定性进行评价.稳定性结果分别为1.101、1.040和1.039,稳定性差.
Granitite resiual soil distributes widely in Meizhou.Granite residual soil landslide is the main geological disaster threatening construction safety in Meizhou.Landslide stability evaluation method is always the popular research field of engineering geology.Aiming at the hot topic,this paper establishes the stability evaluation model in order to provide corresponding reference for the landslide research and management.Tests on shear strength were carried out to obtain its intensity index.Slide is used to calculate stability under the condition of natural condition,rainfall condition and earthquake.Stability results are 1.101,1.040 and 1.039.

引文

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