Study on critical depth of fracture water for nearly horizontal strata landslide

Lü Mei-jun; YAN E-chuan; CHENG Jiang-tao

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Study on critical depth of fracture water for nearly horizontal strata landslide

更新时间：2026-06-25

- Study on critical depth of fracture water for nearly horizontal strata landslide
- Vol. 29, Issue 1, (2008)
- 作者机构：
  
  1. 南昌理工学院建筑工程系,南昌,330013
  2. 中国地质大学工程学院,武汉,430074
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU457
- Online First：18 July 2013，
  
  Published：2008
- 稿件说明：
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Lü Mei-jun, YAN E-chuan, CHENG Jiang-tao. Study on critical depth of fracture water for nearly horizontal strata landslide[J]. 2008, 29(1).
DOI：

Lü Mei-jun, YAN E-chuan, CHENG Jiang-tao. Study on critical depth of fracture water for nearly horizontal strata landslide[J]. 2008, 29(1). DOI：

摘要

从岩性特点和外部诱发因素等方面分析了近水平岩层滑坡的形成机制，提出此类滑坡启动的主要诱发因素是暴雨或持续降雨。从力学角度讨论了滑坡启动的判别依据，推导了滑坡启动时的临界水柱高度。研究表明，裂隙水对近水平岩层滑坡启动的影响是有条件的，在滑体厚度d一定的情况下，当滑面长度L小于安全长度LS时，滑坡就会启动，否则裂隙水不足以引起滑坡的启动。同时对应于一定的滑面长度，分析了浅层、中层、厚层滑坡的临界水柱高度值。

Abstract

The mechanism of deformation and failure of the nearly horizontal strata landslide is studied from lithologic characters and inducing factors

and the start-up of these landslides is mainly due to sustained rainfall or intense rainfall. From the point of view of mechanics

the start-up criterion of the landslide is discussed; also critical depth of fracture water is deduced. Studies indicate that the effect of the fracture water is conditional; if the thickness of sliding mass is a constant

when the length of sliding surface exceeds a fixed value (safe length)

the depth of fracture water has little effect on the stability of the slope. For different length of sliding surface

the critical depth of fracture water is calculated for shallow

medium-bedded and thick-bedded landslides respectively.

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