基于改进水压分布的顺层岩质边坡稳定性研究

doi:10.3969/j.issn.1674-0696.2016.03.17

重庆交通大学学报（自然科学版） ›› 2016, Vol. 35 ›› Issue (3): 78-81.DOI: 10.3969/j.issn.1674-0696.2016.03.17

• 港口航道·水利水电·资源环境 • 上一篇下一篇

基于改进水压分布的顺层岩质边坡稳定性研究

刘明维，高攀，余杰

（重庆交通大学河海学院，重庆 400074）

收稿日期:2015-12-28 修回日期:2015-01-12 出版日期:2016-06-20 发布日期:2016-06-20
作者简介:第一作者：刘明维（1972—），男，贵州遵义人，教授，博士，主要从事港工结构及基础方面的研究。E-mail:mingwei_liu@126.com。
基金资助:
国家自然科学基金项目（51479014）；四川省交通运输科技项目（2015B1-3）

Stability of Bedding Rock Slopes Based on Improved Water Pressure Distribution

LIU Mingwei, GAO Pan, YU Jie

(School of River & Ocean Engineering, Chongqing Jiaotong University, Chongqing 400074, P.R.China)

Received:2015-12-28 Revised:2015-01-12 Online:2016-06-20 Published:2016-06-20

摘要/Abstract

摘要： 基于不同水压分布假设，引入权重的概念，推导了顺层岩质边坡出流缝被堵塞、未被堵塞、处于被堵塞和未被堵塞之间的某一状态3种不同情况下的静水压力计算公式。并综合静水压力、动水压力、锚固效应、地震荷载的影响，运用极限平衡法，推导了典型顺层岩质边坡稳定性系数计算公式。选取某顺层岩质边坡作为实例进行研究，结果表明：顺层岩质边坡稳定性在水力作用下随总地下水位增大而降低；顺层岩质边坡出流缝被堵塞比未被堵塞的稳定性明显降低；顺层岩质边坡稳定性随着权重的增大而减小。

关键词: 岩土工程, 岩石边坡, 水压分布, 极限平衡法, 抗滑稳定性

Abstract: Based on the assumption of different water pressure distribution, the concept of weight was introduced, and the calculation formulas of hydrostatic pressure were derived in three cases that the outflow seam of bedding rock slope was blocked or un-blocked, or in a state between the blocked and the un-blocked. Considering the influences of hydrostatic pressure, hydrodynamic pressure, anchoring effect and seismic loading, the calculation formula of stability factor of typical bedding rock slopes was derived by using limit equilibrium method. A typical bedding rock slope was selected to carry out the case study. The results show that: the stability of bedding rock slopes decreases with the increase of total underground water level under the effect of waterpower; the stability of bedding rock slopes with blocked outflow seam is significantly less than the one with un-blocked outflow seam, and the stability of bedding rock slopes decreases with the increase of weight.

Key words: geotechnical engineering, rock slope, water pressure distribution, limit equilibrium method, anti-sliding stability

中图分类号:

U416.1+4

刘明维，高攀，余杰. 基于改进水压分布的顺层岩质边坡稳定性研究[J]. 重庆交通大学学报（自然科学版）, 2016, 35(3): 78-81.

LIU Mingwei, GAO Pan, YU Jie. Stability of Bedding Rock Slopes Based on Improved Water Pressure Distribution[J]. Journal of Chongqing Jiaotong University(Natural Science), 2016, 35(3): 78-81.

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基于改进水压分布的顺层岩质边坡稳定性研究

Stability of Bedding Rock Slopes Based on Improved Water Pressure Distribution

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