不同风化程度岩体弹性模量的确定方法研究  

Study on Determination Method for Elastic Modulus of Differently Weathered Rockmass

作　　者：王亮清[1] 唐辉明[2] 夏元友[1] 李长冬[2] 

机构地区：[1]武汉理工大学 [2]中国地质大学

出　　处：《金属矿山》2008年第7期19-21,155,共4页Metal Mine

摘　　要：岩体弹性模量的确定是国内外岩石力学界研究的热点课题。采用损伤力学、声波测试方法与Monte-Carlo模拟技术,从理论上推导出估算不同风化程度岩体弹性模量的方法,并将该方法应用于贵州省鱼简河水库拱坝地基弹性模量估算中。通过与原位试验结果对比分析,说明利用该方法所确定的弹性模量比较接近岩体的实际弹性模量。结果表明,对于一些大型工程的初步研究阶段,当需要对岩体弹性模量作出初步判断时,可以利用Monte-Carlo模拟技术与室内岩块试验的方法估算不同风化程度岩体的弹性模量。Determination of the elastic modulus of rockmass is a hot topic of research in both domestic and foreign geotechnical circles. Based on the damage mechanical and sound wave testing methods, and Monte-Carlo technology, the method for estimating the elastic modulus of differently weathered rockmass was theoretically deduced, which was used in the estimation of the elastic modulus of the foundation of the arch dam of Yujianhe Reservoir in Guizhou. The results indicate that, at the preliminary study stage of some large scale projects, when it is needed to make a preliminary judgment for the elastic modulus of rockmass, Monte-Carlo simulation and laboratory test methods can be used to estimate the elastic modulus of differently weathered rockmass.

关 键 词：损伤力学 声波测试 Monte—Carlo模拟技术 岩体弹性模量 

分 类 号：TU452[建筑科学—岩土工程] P642[建筑科学—土工工程]