坝基岩体错位的发现与分析  

RECENTLY FOUND DISLOCATION OF DAM FOUDATION ROCK MASS

作　　者：李国珍[1] 郭磊[1] 张莉[2] 周瑞光[3] 

机构地区：[1]水利部山西水利水电勘测设计研究院,太原030024 [2]中国科技大学研究生院,北京100039 [3]中国科学院地质研究所,北京100029

出　　处：《工程地质学报》1999年第3期218-223,共6页Journal of Engineering Geology

基　　金：中国科学院 K Z952-j1-003 资助项目

摘　　要：由寒武系坚硬白云岩组成的汾河二库坝基开挖后，岩体沿顺层开裂面发生错位，错位波及几乎整个坝基，错距达 １～７ ｃｍ 。本文对坝基岩体错位进行了分析研究。After excavation of the dam foundation of Fenhe Reservoir 2,a dislocation of rock mass along bedding fracture plane is found.The dislocation, with displacements of 1 cm to 7 cm,spread on almost the whole dam poundation which is composed of hard dolomite of Cambrian system.In this paper,the dislocation of rock mass at the dam foundation is analyzed and studied. The dislocation is a result ofground stress release after the excavation of the dam foundation.

关 键 词：坝基 顺层开裂面 岩体错位 地应力释放 

分 类 号：TV223.1[水利工程—水工结构工程] TV698.11