斜坡岩体卸荷分带量化研究  

A QUANTITATIVE STUDY ON THE CLASSIFICATION OF UNLOADING ZONES OF ROCK MASS SLOPE

作　　者：任光明[1] 巨广宏[1] 聂德新[1] 王毅[1] 宋彦辉[1] 

机构地区：[1]成都理工大学工程地质研究所,成都610059

出　　处：《成都理工大学学报（自然科学版）》2003年第4期335-338,共4页Journal of Chengdu University of Technology: Science & Technology Edition

基　　金：国家自然科学基金资助项目 (编号 :40 0 72 0 90 )

摘　　要：岩体卸荷及卸荷带划分一直是水利水电工程地质研究的重要内容 ,它是影响坝基建基面选择的主要因素之一。作者在分析国内外岩体卸荷分带研究成果基础上 ,提出了采用裂隙开度、裂隙条数、纵波速度、透水性系数等作为岩体卸荷分带的量化指标 ,并采用裂隙开度、裂隙条数、纵波速度对工程区部分平洞岩体进行卸荷带划分 ,其结果与现场定性划分的卸荷带界线基本一致。In the research of water conservancy and hydroelectric projects, the rock mass unloading and classification of unloading zones are very important contents. At the same time, they are main factors that affects the choice of the bearing surface of a dam foundation. On the basis of the foregone research results, this paper puts forward quantitative indexes of classification of unloading zones: fissure aperture, fissure amount, longitudinal wave velocity and coefficient of permeability. Using these indexes to classify unloading zones, the result is accordant with qualitative investigation on the spot. These indexes offer reference evidences of classification of unloading zones for rock mass slope engineering.

关 键 词：岩体 卸荷分带 量化指标 工程地质 

分 类 号：TU45[建筑科学—岩土工程]