摘要
主要介绍了三峡工程二期上游围堰在基坑抽水阶段堰体和防渗墙的应力应变分析研究的成果。研究成果表明 ,围堰在基坑抽水阶段 ,墙体变形规律正常 ,并且与现场实测值较接近 ;在设计正常蓄水位高程 85 .0 m下 ,上游墙的最大变位将达到 67.4cm,墙体应力在墙体实测强度范围之内 ,墙体应力水平小于 1.0 ,表明墙体和堰体是稳定。
This paper introduces the research results on numerical analysis of stress strain of TGP's 2nd stage cofferdam and impermeable wall during pumping water from the foundation pit.The study results show that the displacement regularity of the wall body is normal during pumping water,and the calculated values approach to the observed data in site;Under the normal storage water level 85 m condition,the maximum displacement of upstream wall body will reach 67.4 cm,the stresses of the wall body are within the range of its actually measured strength,and its stress level is less than 1.0.So the wall and cofferdam bodies are stable and safe.
出处
《长江科学院院报》
CSCD
北大核心
2000年第1期25-28,共4页
Journal of Changjiang River Scientific Research Institute
关键词
三峡工程
二期围堰
防渗墙
应力应变
基坑
抽水
TGP
2nd-stage cofferdam
stress-strain
impermeable wall
stress level
