土工基础

土工基础 ›› 2021, Vol. 35 ›› Issue (4): 491-494.

• 专题论述 • 上一篇    下一篇

重庆城口四湾村滑坡原因分析

龙盛军1，王雪晴2，霍玉龙3，王毅锟3   

  1. （1.重庆市地质矿产勘查开发局205地质队，重庆 402160；
    2.中国科学院武汉岩土力学研究所 岩土力学与工程国家重点实验室，武汉 430071；
    3.桂林理工大学，土木与建筑工程学院，广西桂林 541004）
  • 收稿日期:2020-04-30 修回日期:2020-08-27 出版日期:2021-08-31 发布日期:2021-08-20
  • 作者简介:龙盛军（1970-），男，高级工程师，研究方向为矿产勘查和开发。

Stability Analysis of Siwan Village Landslide in Chengkou, Chongqing

LONG Shengjun1, WANG Xueqing2, HUO Yulong3, WANG Yikun3   

  1. (1.205 Geological Investigation Division, Chongqing Bureau of Geological and Mineral Exploration, Chongqing, 402160;
    2.State Key Laboratory of Geomechanics and Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071;
    3.College of Civil and Architectural Engineering, Guilin University of Technology, Guilin 541004)
  • Received:2020-04-30 Revised:2020-08-27 Online:2021-08-31 Published:2021-08-20

摘要： 位于重庆龙潭河西北侧的四湾村滑坡，严重威胁着村道行人和下方居民的生命财产安全。通过对滑坡区域各种条件的分析，描述了滑坡的基本特征、影响因素并对滑塌区和潜在滑移区作了稳定性分析。结果表明，斜坡本身结构面裂隙发育，坡体土层结构松散，在持续降雨的作用下，最终发育成滑坡。稳定性分析得出，滑塌区在降雨导致岩土体饱和的情况下处于欠稳定状态，与实际相符；滑塌区右后侧潜在滑移区在正常情况下就处于欠稳定状态，在土体饱和情况下处于不稳定状态，需要进一步治理和监测。

关键词: 四湾村滑坡, 特征, 稳定性分析

Abstract: The Siwan Village Landslide locates on the northwest of Longtan River. The landslide seriously threatens the lives and property of the residents and the safety of pedestrians using the village roads. Based on the analysis of various conditions of the landslide body, the basic characteristics of the landslide, the potential influencing factors, the stability analysis of the landslide body and potential slip zone are discussed in this paper. The results show that the structural surface and cracks on the slope are well developed, and the structure of the soil layer of the slope is in loose state. Under the action of continuous rainfall, it eventually developed into a landslide. The stability analysis shows that the landslide body is in an unstable state under the condition that the rock and soil are saturated by rainfall, which is consistent with the actual situation. The potential slip zone on the right back side of the landslide body is in an unstable state under normal conditions, it is unstable under the condition of saturation and needs further mitigation and monitoring.

Key words: Siwan Village Landslide, Basic Characteristics, Stability Analysis

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