A Study of Landslide Shear Strength Parameters by Inversion Analysis Based on Numerical Simulation and Monitoring Displacement
详细信息
- 责任者：Tang Luosheng (Engineering Faculty ; China University of Geosciences ; Wuhan 430074 ; China) ; Yin Kunlong
- 刊名：Hydrogeology and Engineering Geology
- 出版年：2012
- 卷期：39(4)
- 关键词：滑坡 ; landslides ; 抗剪强度 ; shear strength
- 页码：p.32-37
- 图表：illus., 4 tables, 11 refs.
- 分类号：1702
- issnNo：ISSN1000-3665
- isbnNo：CN11-2202/P
摘要
Slip zone soil shear tests have not been conducted in some landslides which are parts of the three periods of geological disaster monitoring projects in the Three Gorges Reservoir area.At present the parameters for this kind of landslides is insufficient.This article introduces the numerical simulation method to determine the shear strength parameters by inversion analysis,which will be inspected with macro-deformation and displacement monitoring data.Based on the primary values of shear strength parameters obtained with the engineering geological analogy method,a regional statistical rule and the landslide monitoring displacement trend in calculation conditions are selected from the scheduled water levels of the Three Gorges Reservoir area.Taking a landslide in the Three Gorges Reservoir area as an example,the shear strength parameters of the landslide are obtained by using the FLAC3D numerical simulation software,and the value is: c=20.0 kPa,Φ=19.0°.
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