摘要
下坂地水库大坝上游围堰基础覆盖层厚度达150m,上部分布2层软土层,下部为强透水地层,且围堰的建设工期很短,围堰的防渗和稳定设计都存在很大的困难和风险。设计过程中对围堰进行了大量的计算分析和方案论证,在施工中加强控制和监测,保证围堰顺利施工和安全运行。
The overburden of the upstream cofferdam foundation of XiaBandi reservoir dam is 150m deep, with 2 layers of soft soil at its upper part and a strong permeable layer at its lower part. The cofferdam construction period is very short, and the seepage control and stability design of cofferdam is faced with great challenge and risk. A great deal of calculation analysis and option justification has been done in the process of cofferdam design. Strengthened control and monitoring in construction has ensured smooth construction and safe operation of the cofferdam.
出处
《西北水电》
2009年第2期38-40,59,共4页
Northwest Hydropower
关键词
围堰
软土
固结
抗滑稳定
cofferdam
soft soil
consolidation
stability against sliding
