铜灌口水库面板堆石坝坝基覆盖层利用研究  

Research on Application of Panel Rock-fill Dam Foundation Covering Layer in Tongguankou Reservoir

作　　者：陈清松[1] 张全意[1] 张文胜[1] 

机构地区：[1]遵义水利水电勘测设计研究院,贵州遵义563002

出　　处：《中国水能及电气化》2014年第9期57-61,共5页China Water Power & Electrification

摘　　要：铜灌口水库是西南五省(自治区、直辖市)重点水源工程和贵州省骨干水源工程之一,坝址区覆盖层深厚,河床覆盖层最大厚度24.6m。通过对坝基覆盖层进行钻孔、注水试验、筛分、载荷试验及物探等工作,查明其分布厚度、成因类型、分布结构、物理力学性质及有无粉细砂、黏性土层等地质条件,对其作为坝基的工程地质特性提供可靠依据;并通过三维有限元对坝体及覆盖层进行应力变形分析,论证河床覆盖层上直接筑坝的安全性。本文对此加以介绍。Tongguankou Reservoir is one of key water source projects in five southwestern provinces （autonomous regions and municipalities）and backbone water source projects in Guizhou Province.Dam area has deep covering layer.The riverbed layering layer is as deep as 24.6m.The distribution thickness,cause type,distribution structure,physical and mechanical properties,presence of fine sand,sticky soil layer and other geological conditions are identified through drilling,water injection testing,screening,load testing and geophysical prospecting test and other work in dam foundation laying layer,thereby providing reliable basis as project geological characteristics of dam foundation.In addition,stress deformation analysis is conducted on the dam and covering layer through three-dimensional finite element.Safety of directly constructing dam on the riverbed covering layer is discussed.The condition is introduced in the paper.

关 键 词：铜灌口水库 面板堆石坝 坝基覆盖层 利用研究 

分 类 号：TV641.4[水利工程—水利水电工程] TV223