摘要
围岩稳定性受众多因素制约,其分类属于非确定性决策问题。本文将风险评价理论及信息论中的熵和熵权的概念应用于地下工程的风险评价中,提出了围岩稳定性的风险评价分级方法。根据岩体力学现有的研究资料和国家规范,建立了影响围岩稳定性的因素指标体系,确定了各因素指标在不同稳定性下对应的标准数和规格化数,提出了熵度量法围岩稳定性安全评价结果R对应的分级表,以实现对围岩安全性的综合评价。最后利用实际工程数据对此方法进行了分析映证。
The rocks stability is restricted by a lot of factors. Its classification belongs to non - determinacy decision - making problem. The risk evaluation theory and Entropy ＆ Entropy Weight concept were applied to underground engineering risk assessment. It presents the classification method of risk assessment in the underground engineering is presented. According to now available research information and national standards of rock mechanics, a system of factors affecting the rocks stability, every factor ~s standard number and normalized number under different stability states are studied. An R - classification form of risk assessment is proposed by using entropy method. For the overall evaluation of rocks stability. Finally, the actual engineering data were used to verify this method.
出处
《重庆建筑大学学报》
EI
CSCD
北大核心
2007年第1期75-77,共3页
Journal of Chongqing Jianzhu University
基金
重庆市建委"重庆地区深基坑支护结构施工安全方法体系研究"(城科字2005第(21)号)
关键词
地下工程
熵度量法
风险评价
underground engineering
entropy measurement
risk assessment
