土工基础 ›› 2022, Vol. 36 ›› Issue (3): 355-359.

• 工程实录 • 上一篇    下一篇

某市政道路堆积体滑坡成因机理及稳定性分析

周 坤,王 搏,严俊峰   

  1. (中交第二公路勘察设计研究院有限公司,武汉 430056)
  • 收稿日期:2022-02-15 修回日期:2022-02-23 出版日期:2022-06-30 发布日期:2022-06-24
  • 作者简介:周 坤(1988-),男,工程师,研究方向为工程地质勘察、岩土工程设计、地质灾害勘察设计及施工等。

Stability Analysis of a Municipal Roadway Landslide in Colluvial Soils

ZHOU Kun, WANG Bo, YAN Junfeng   

  1. (CCCC Second Highway Consultants Co. Ltd., Wuhan 430056)
  • Received:2022-02-15 Revised:2022-02-23 Online:2022-06-30 Published:2022-06-24

摘要: 滑坡整体滑动产生的危害十分严重,有必要对滑坡成因机理及稳定性进行分析。以包山滑坡为研究对象,通过收集资料和现场实地调绘,分析了滑坡的基本特征,调查了包山滑坡的变形发育情况,对滑坡产生条件和成因机理进行研究,认为坡脚的开挖会使坡脚处产生新的应力集中区。同时切坡部位未及时进行防护,形成了裂缝并加速了裂缝的发育,降雨是滑坡失稳的主要触发因素,在其作用下裂缝不断形成与扩展,最终滑坡发生变形破坏。在此基础上运用剩余推力法计算滑坡的稳定性并对其做出合理的分析与评价,可为后续滑坡防治提供参考。

关键词: 堆积体滑坡, 发育特征, 成因机理, 稳定性分析

Abstract: This paper presents a case history of Baoshan landslide in the colluvial soils throughout the data collection and field mapping. The deformation and development of the Baoshan landslide are investigated, and the conditions and mechanism of the landslide are studied. On this basis, the residual thrust method was used to evaluate the stability of the landslide. The global slide of the potential area will cause serious hazards to the roadway at the toe of the slope and the residential development under construction, so it is necessary to analyze and study the potential factors that might contribute to the stability of the landslide.

Key words: landslide in colluvial soils, development characteristics, formation mechanism, stability analysis

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