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一个极限稳定坡角与坡高的经验关系式——以云南省为例
引用本文:徐世光,祝传兵,殷瑛.一个极限稳定坡角与坡高的经验关系式——以云南省为例[J].中国地质灾害与防治学报,2006,17(3):22-26.
作者姓名:徐世光  祝传兵  殷瑛
作者单位:1. 云南地矿勘查工程总公司(集团),云南,昆明,650051;昆明理工大学,云南,昆明,650093
2. 云南省地质环境监测总站,云南,昆明,650045
3. 云南国土资源职业学院,云南,昆明,650217
摘    要:由于岩土边坡系统的复杂性,边坡工程的设计和决策在工程实践中仍很难依赖于理论分析和数值计算,而主要依赖于专家的经验。因此,将已有成功经验知识运用在边坡稳定性分析中具有重要的实际意义。论文从岩土边坡极限平衡条件出发,理论导出极限稳定坡角与坡高的关系式。通过对云南元-磨公路大量的泥岩、粉砂岩边坡典型病害的实例进行计算和研究,发现该类岩土边坡的极限破坏(稳定)角并非一个定值,而明显与其内摩擦角呈显著线性相关。从而可以建立相应的岩土边坡稳定性分析的数学类比判别方程。

关 键 词:边坡  稳定性分析  类比模型  云南
文章编号:1003-8035(2006)03-0022-05
收稿时间:2005-08-04
修稿时间:2005-10-15

Empirical correlation between limiting slope angle and slope height——an example of Yunnan Province
XU Shi-guang,ZHU Chuan-bing,YIN Ying.Empirical correlation between limiting slope angle and slope height——an example of Yunnan Province[J].The Chinese Journal of Geological Hazard and Control,2006,17(3):22-26.
Authors:XU Shi-guang  ZHU Chuan-bing  YIN Ying
Abstract:Due to the geological complexity of the slope,it is still very difficult to rely on the theoretic analysis and numerical calculation for the design provention engineering for the actual slope,but mainly rely on the experience of the experts.Therefore,it is of great practical significance to turn some successful experience into mathematic equations.Based on the dynamic equivalence of the slope,the relationship between the slope height and the limiting slope angle has been derived theoretically,and through case study on the abundant typical landslides,which are constituted of mudstone and siltstone along Yunnan Yuan-Mo(Yuanjiang-Mohei) highway.It is found that the limiting slope angle is not constant value for one rock, but has an evident linear relation with the angle of shearing resistance.Thus, the corresponded analogous mathematic equation for analyzing slope stability was suggusted.
Keywords:slope  analysis of the slope stability  analogous model  Yuan-Mo(Yuanjiang-Mohei)Highway  Yunnan Province
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