桃源水库坝址区工程地质条件论证与坝型优选  

Analysis of dam site engineering geological conditions and dam type selection for Taoyuan Reservoir

作　　者：刘勇 魏潇 杨兰[2] LIU Yong;WEI Xiao;YANG Lan(Guiyang Institute of Water Resource ＆ Hydropower Survey and Design,Guiyang 550081,China;Xi＇an University of Technology,Xi＇an 710048,China)

机构地区：[1]贵阳市水利水电勘测设计研究院,贵阳550081 [2]西安理工大学,陕西西安710048

出　　处：《广西水利水电》2018年第3期10-14,共5页Guangxi Water Resources & Hydropower Engineering

基　　金：国家科技支撑计划项目(2016BAD12B05)

摘　　要：针对桃源水库坝址区地质条件较复杂,断裂带、岩溶管道发育、裂隙等不利地质条件可能造成大坝出现抗滑稳定性差、坝基渗漏及绕坝渗漏等问题。经现场踏勘和钻孔勘察,对坝址区地质条件和坝型适应性进行详细论证分析,并优选地形条件较优、坝型适应性强、工程整体布置简洁、工程量小和投资经济效益高的下坝线碾压混凝土重力坝方案。通过对坝址区工程地质条件的详细论证分析,为桃源水库坝线和坝型选择及坝基、坝肩和两岸防渗加固处理,提供了详细地质资料及建议。The dam site of Taoyuan Reservoir has complex geological conditions with fracture zone, karst development and fissures, which may lead to problems such as poor anti-sliding stability, dam foundation seepage or by-pass seepage. After field and borehole surveying, detailed analysis of dam site geological conditions and dam type adaptability was conducted, based on which the scheme of RCC gravity dam at lower dam axis was selected due to better terrain conditions, superior adaptability, simple overall layout, less construction quantities and higher economic benefit. The detailed analysis of dam site engineering geological conditions also provide important data and proposals for the selection of dam axis and dam type, anti-seepage reinforcement at dam foundation, abutment and banks.

关 键 词：工程地质 坝型 碾压混凝土重力坝 桃源水库 

分 类 号：TV223.4[水利工程—水工结构工程]