摘要
渗流控制措施是乌东德水电站大坝坝基及地下厂房设计的重要内容。针对乌东德水电站工程区复杂的地质条件和渗控措施,建立坝基及右岸地下厂房区三维模型,采用三维有限元渗流场精细求解技术对渗流场进行计算。成果分析表明,防渗帷幕和排水孔幕组成的渗流控制体系对山体地下水位具有控制作用,厂房侧墙位于地下水面以上;灰岩和厚层白云岩顺层面方向渗透性更强时,渗控措施的防渗排水效果更明显,但排水量显著增大。
The seepage control measures are the main items for the design of the dam and underground powerhouse caverns of Wudongde Hydropower Station. A refined 3D finite element model is established to simulate the complicated seepage control measures and geological conditions for the dam foundation and the underground hydropower cavern area at the right bank of Wudongde Hydropower Station. The numerical results show that the integrated measures composed of curtains and drainage hole rows will control the water flow from the reservoir and mountain area efficiently. The powerhouse cavern walls will be above the ground water surface. If the permeability is stronger along bedding in thick limestone and dolomite layer, the seepage control system will work more efficiently, but the flux from drainage holes increases obviously.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
2012年第9期1722-1727,共6页
Chinese Journal of Geotechnical Engineering
基金
国家"十二五"支撑计划课题(2011BAB10B04)
国家大坝安全技术研发中心课题(2011NDS003)
关键词
乌东德水电站
渗流场
防渗帷幕
密集排水孔
数值模拟
Wudongde Hydropower Station
seepage field
anti-seepage curtain
densely-distributed drainage hole
numericalsimulation
