基于安全熵的边坡稳定性分析

程东幸; 刘大安

基于安全熵的边坡稳定性分析

程东幸¹,
刘大安²

1.
中国电力工程顾问集团西北电力设计院西安 710032;
2.
中国科学院地质与地球物理研究所工程地质力学重点实验室北京 100029

基金项目:

西南水电开发重大高难地质工程信息获取与安全评价技术方法研究(KACX2-SW-134)

详细信息

作者简介:
程东幸,主要从事边坡稳定性与安全评价方面的研究. Email:chengdongxing759@163.com

中图分类号: TU457
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- 被引次数: 0
出版历程
- 收稿日期: 2010-01-24
- 修回日期: 2010-05-28
- 刊出日期: 2010-12-25

SAFETY ENTROPY BASED SLOPE STABILITY ANALYSIS

CHENG Dongxing¹,
LIU Da'an²

1.
Northwest Electric Power Design Institute of China Power Engineering Consulting Group,Xi'an 710032;
2.
Key laboratory of Engineering Geomechanics,Institute of Geology and Geophysics,Chinese Academy of Science,Beijing 100029

摘要

摘要: 熵的概念源于热力学,是一种多目标决策的有效方法,是系统不确定性的一个度量。熵已经广泛应用于众多学科,但是应用于地质学,尤其是用来进行边坡稳定性评价的实例却很少。作者基于关系矩阵及信息熵概念提出的边坡安全熵稳定性评价方法,有效地结合了关系矩阵对各种影响边坡稳定性因素的敏感性及信息熵对边坡紊乱度的量化优点,综合考虑边坡地质、环境及工程因素的基础上,对边坡的稳定性状态作出客观的评价。经在龙滩水电站左岸边坡工程稳定性评价中应用,并与解析计算分析及地质资料分析结果对比,具有很好的相应性。
- 关系矩阵 /
- 信息熵 /
- 边坡安全熵
Abstract: Entropy originated from thermodynamics is an effective method of multi-objective decision and a measurement of system uncertainty. It is still not applied widely in geology especially in analysing the slope stability. So a new method for evaluating the slope stability is presented in this paper. It is based on the interaction matrix and information entropy. The new method combines the sensitivity of interaction matrix to each influencing factor on slope stability and the quantization of information entropy to the irregularity of slope. It can provide the objective result of slope stability using factors in geology, environmental and engineering. It has been shown that the result calculated with entropy method is consistent well with the geology data. The result of the new method has been applied to the stability analysis of the left bank slope at Long-tan hydropower dam site. In a word,it is a new analysistechnique with promotional value.
- Interaction matrix /
- Information entropy /
- Slope safety entropy

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