土工基础

›› 2019, Vol. 33 ›› Issue (4): 479-482.

• 工程实录 • 上一篇    下一篇

运用工程地质类比法分析评价边坡的稳定性

李奎   

  1. （湖南中大设计院有限公司四川分公司，成都 610000）
  • 收稿日期:2019-03-10 修回日期:2019-03-20 出版日期:2019-08-20 发布日期:2019-08-16
  • 作者简介:李 奎(1987-)，男，硕士，工程师，研究方向为岩土工程、地质灾害勘察设计。

Analysis and Evaluation of Slope Stability by Engineering Geological Analogy

LI Kui   

  1. (Sichuan Branch of Hunan Zhongda Design Institute Co. Ltd., Chengdu 610000)
  • Received:2019-03-10 Revised:2019-03-20 Online:2019-08-20 Published:2019-08-16

摘要： 边坡稳定性分析评价方法包括定性评价和定量评价，而工程地质类比法属于定性评价中的一种，它的实质是将已有边坡的岩土工程经验进行总结归纳后，应用到条件相似的边坡稳定性评价研究中去，是一种经验方法，应用广泛。以四川省乐山市某边坡为例，首先阐述了边坡的基本特征，包括范围、规模、形态、物质组成以及变形特征，然后通过对周边类似原始斜坡以及填土边坡自然稳定角的确定，最后运用工程地质类比法分析评价边坡的稳定性，为采取工程治理措施以及类似边坡稳定性评价提供了依据。

关键词: 工程地质类比法, 稳定性, 自然稳定角, 定性评价

Abstract: Slope stability analysis and evaluation methods include qualitative and quantitative evaluations. The engineering geology analogy method is one of the qualitative evaluation methods. Its essence is to sum up the experience of geotechnical engineering of existing slopes and apply it to the study of slope stability evaluation with similar conditions. It is an empirical method and widely used. This paper presents the case history of the stability evaluation of a slope in Leshan City, Sichuan Province. Basic characteristics of a target slope, including its scope, scale, shape, material composition and deformation characteristics, are first introduced. Then, the repose angle of the surrounding similar original slope and fill slope is determined. Finally, the stability of the slope is analyzed and evaluated by using the geological analogy method, in order to adopt engineering control measures and similar slope stability.

Key words: engineering geology analogy, stability, repose angle, qualitative evaluation