摘要
丹江口大坝坝基岩浆岩、变质岩、沉积岩三大岩类均有分布,岩浆岩和变质岩中构造较发育,变质岩和沉积岩间有不整合接触面。根据大量压水试验成果结合防渗要求,进行坝基岩体渗透性分区,并对坝基集中渗流带和不整合面的渗漏、渗透变形特征进行专题研究,为设计合理的渗控方案提供了可靠的地质依据。
Magmatic rocks, metamorphic rocks, sedimentary rocks are the three major distribution of dam foundation in Danjiangkou. The structure of magmatic rocks and metamorphic rocks are better developed. Unconformity contact lies between metamorphic rocks and sedimentary rocks. Based on the results of packer permeability test, in accordance with the requirements of preventing seepage, the author makes partition of permeability of mass in dam foundation, executes the subject of investigation of characteristics of seepage and seepage deformation in concentrated seepage belt and unconformity, which provides a reliable geological basis for control solution of suitable design.
出处
《资源环境与工程》
2009年第4期419-424,446,共7页
Resources Environment & Engineering
关键词
集中渗流带
软弱夹层
渗漏和渗透变形
渗控
丹江口大坝
concentrated seepage belt
weak intermediate layer
deformation of leakage and seepage
seepage control
Danjiangkou Dam
