马背水库坝址区工程地质条件分析与坝型优选  

Analysis of dam site engineering geological condition and dam type selection for Mabei Reservoir

作　　者：刘军 谭剑波[2] 

机构地区：[1]贵州众诚天河水利工程有限公司,贵阳550003 [2]杨凌职业技术学院水利工程学院,陕西杨凌712100

出　　处：《广西水利水电》2017年第6期41-45,共5页Guangxi Water Resources & Hydropower Engineering

基　　金：中央高校科研业务专项资金(35GXKY6223);杨凌职业技术学院科学研究基金项目(A2016003)

摘　　要：针对马背水库坝址区地形地貌、地质条件较复杂,裂隙对边坡岩体切割局部可能会出现掉块、垮塌现象以及坝基渗漏及绕坝渗漏等不利物理地质问题。从地形地貌、地层岩性、地质构造、岩溶水文等方面,对坝址区地质环境各项因素和坝型进行综合勘察分析和对比论证,优选地形地质条件较优越的第一河段和地形地质条件、枢纽布置和技术经济等均占优的砼重力坝坝型。其坝址区工程地质条件的详细分析和建议结论,为马背水库设计提供了重要的地质资料。At the dam site area of Mabel Reservoir with relatively complicated topographical and geological conditions, fracture cutting slope may lead to local falling rock or collapse, dam foundation seepage or by-pass seepage. In view of these geological problems, the authors analyze the geological environment and discuss the dam type selection based on comprehensive investigation of topography, lithology, geological structure, karst hydrology and other aspects. The No. 1 river section was selected due to better topographical and geological conditions. Concrete gravity dam type was selected due to better topographical and geological conditions, layout condition, technical and economic indexes. The detailed analysis and conclusions of engineering geological conditions of dam site area provide basis for the design of Mabel reservoir project.

关 键 词：工程地质 坝址选择 砼重力坝 马背水库 

分 类 号：P642[天文地球—工程地质学] TV221[天文地球—地质矿产勘探]