乌江银盘水电站中奥陶系灰岩的岩溶发育特征及工程处理措施  

Karst Development Characteristics and Treatment Measures of Ordovician System Calcareous Rock in WuJiang Yinpan Hydroelectric Power Station

作　　者：王颂 王启龙 巫玉皇 杨智[2] 

机构地区：[1]长江岩土工程总公司,湖北武汉430010 [2]宜昌供电公司,湖北宜昌443000

出　　处：《资源环境与工程》2011年第5期444-447,共4页Resources Environment & Engineering

摘　　要：乌江银盘水电站坝址建基岩体主要由页岩、砂岩、灰岩组成,灰岩约占岩层总厚的22.6%。其中,中奥陶系宝塔组灰岩中岩溶泉、溶洞、溶沟溶槽、溶蚀裂隙发育,是影响大坝防渗、边坡稳定的主要地质因素。从结构特征、沉积环境对灰岩的形成以及岩溶的空间分布、发育特征进行分析研究,通过施工开挖验证,勘察结论基本正确。对施工开挖揭露的岩溶地质缺陷进行分析评价,提出了处理措施。WuJiang Yinpan hydroelectric Power station dam site is mainly composed of the shale,the sandstone and the calcareous rock.Starting from the structure characteristic,the environment of deposition to the calcareous rock formation as well as the karst spatial distribution,the growth characteristic,the paper conducts the analysis research,carries on the analysis appraisal of karst geology flaw in excavation,proposes the treatment measures.

关 键 词：中奥陶系灰岩 岩溶 处理措施 

分 类 号：P642.25[天文地球—工程地质学]