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基于传递系数法的某滑坡稳定性分析及评价

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依托某典型滑坡工程,从滑坡的坡体结构、软弱面、地下水入渗、岩土体弱化四个方面,定性分析了该滑坡的成因机制.以传统经典的传递系数法,定量评价滑坡在天然、暴雨、地震工况下的稳定性,天然工况下的稳定系数为1.761,其状态是稳定的,暴雨工况下的稳定系数为0.945,其状态是不稳定的,地震工况下的稳定系数为1.017,其状态是欠稳定的.滑坡的稳定性分析结果与其变形历史、定性分析结果基本一致,定性和定量评价结果相互印证,证实了计算结果的准确性,同时为该滑坡的治理和防治措施提供了依据.
Stability Analysis and Evaluation of a Landslide by Using Transfer Coefficient Method
This paper selects a typical landslide site and investigates the basic conditions of the landslide.The triggering mecha-nism of the landslide is analyzed qualitatively from four aspects:the landslide structure,the weak plane,the groundwater infil-tration,and the weakening of the rock and soil mass.The traditional classical transfer coefficient method is then used to quanti-tatively evaluate the stability of the landslide under the natural,the rainstorm and the earthquake conditions.The body is un-stable,the factor of safety under the earthquake conditions is 1.017,and therefore is marginally stable condition.The stability analysis results of the landslide are basically consistent with the deformation history and qualitative analysis results.The quali-tative and quantitative evaluation results confirm each other,which validates the accuracy of the evaluation results and provides a strong basis for the landslide mitigation and prevention measures.

LandslideQualitative EvaluationQuantitative EvaluationTransfer Coefficient MethodStability

聂兵其、贾向新、茆玉超、张义、邵山、李云杰

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中冀建勘集团有限公司,石家庄 050227

湖北省地质环境总站,武汉 430000

中煤科工重庆设计研究院(集团)有限公司,重庆 610059

滑坡 定性评价 定量评价 传递系数法 稳定性

2024

土工基础
湖北省土木建筑学会,中国科学院武汉岩土力学研究所,武汉市土木建筑学会

土工基础

影响因子:0.238
ISSN:1004-3152
年,卷(期):2024.38(3)