摘要
在风险评价方法的基础上,结合模糊理论,提出了围岩稳定性的风险评价分级方法.在评价时,根据岩体力学现有的研究资料,选取六个评价指标通过对评价指标权重的计算并结合安全检查表法,计算出围岩稳定性的值,以此值将围岩分为Ⅰ～Ⅴ个等级,从而实现了对围岩的综合评价.该评价方法被应用到黄河大柳树水电站导流洞围岩稳定性综合评价中,其结果得到了实际工程的检验,说明该方法有一定的适用价值.
Based on the method of risk assessment, the fuzzy analysis is introduced to establish the classification of surrounding rock stability. According to a great number of achievements in rock mechanics, six parameters are chosen. By the confirmation of the weight of those parameters and safety check llst, the value of m is confirmed. A system with five levels from Ⅰ to Ⅴ for evaluating surrounding rock stability is given by the value of m. This system is applied to analyze the stability of surrounding rock in diversion tunnel of the Daliushu Hydro Project. The application shows that the system is effective and practical.
出处
《地下空间与工程学报》
CSCD
2005年第6期874-877,共4页
Chinese Journal of Underground Space and Engineering
关键词
地下工程
风险评价
安全分级
值
underground engineering
risk assessment,
safety classification
the value of m
