摘要
在岩溶地区修建水电工程,必须对岩溶进行处理。简述了目前普遍采用的岩溶探测手段。根据构皮滩水库周围岩溶的分布和发育特征,针对工程地下洞室、大坝、防渗帷幕3种主要建筑物对基岩防渗的不同要求,在施工过程中结合溶洞特点、地质条件,进行动态设计,采用了防渗墙、高压旋喷、混凝土换填封堵、地下水引排和避让等多种岩溶处理技术,以阻截防渗帷幕线上的岩溶通道。总结了对不同类型岩溶的处理方案和技术要求。
Karst problem brings about severe threats to construction safety and operation of hydro projects. We briefly introduce the present karst detection technology. According to karst distribution condition and development features around Goupitan Reservoir, in the light of different seepage prevention requirements for foundation rock mass of underground chamber, dam, seepage prevention curtain, flexible design combined with karst features and geological condition was made, and multi - measures of seepage prevention wall, high -pressure jet grouting, concrete replacement for closure, underground water diversion and avoidance and so on were adopted to treat karst seepage on the curtain line. We summarize the treatment schemes and technology requirements for different karst types.
出处
《人民长江》
北大核心
2010年第22期47-51,共5页
Yangtze River
关键词
岩溶系统
处理技术
处理方案
构皮滩水电站
karst system
treatment
treatment schemes
Goupitan Hydropower Station
