Hoek—Brown强度准则参数的改进算法

基于溪落渡及二滩水电站的大量测度数据，提出了岩体Ｈｏｅｋ－Ｂｒｏｗｎ经验强度准则参数ｍ、ｓ的改进算法并对随机特征进行了分析。研究发现ｍ、ｓ是一种具有较大变异性的相关变量，且ｓ的变异性比ｍ的变异性大；当岩体强度一定时，ｍ、ｓ为一对负相关的变量，且这种变异性和岩体性质、岩体地点都有关系。

The Improvement Algorithm of the Hock-Brown Strength Criterion Parameters for Rockbody

Based on a lot of testing data from Xiluodu Hydropower power station and ertan hydropower staton,the parameters such as m and s of the Hoek Brown strength criterion are analyzed in this paper.It is found that m and s are a couple of variables with great corelativity.While the strength of rockbody is a constant,there is negative correlativity between m and s determined by the property and location of rockbody,it is suggested in the paper that the corelativity between m and s is very important parameter which can not be neglected.