某高耸进水塔地基处理方案优选

Scheme Optimization of Foundation Treatment for High-rise Intake Tower

针对新疆地区某水电站高耸进水塔地基不能满足上部结构要求的问题,采用PKPM软件中桩筏有限元计算模块和ADINA有限元软件,对高耸进水塔三种地基处理方案进行了计算分析。结果表明,桩基础、深齿墙+桩基础、无桩深齿墙三种方案均满足上部结构承载的要求;通过对比三种方案五个工况下的最大沉降量、应力及安全性等,并结合该高耸进水塔的项目特点,最终推荐选择无桩深齿墙方案。

Aiming at the problem that high-rise intake tower foundation cannot meet the upper structure demands of a hydroelectric station in Xinjiang, analysis of the foundation treatment of a certain high-rise intake tower was conducted by using PKPM and ADINA finite element software. The calculation results indicate that all of three schemes （pile foundation, deep key wall combined with pile foundation, deep key wall without pile） can meet the design requirements of upper structure; comparison of maximum settlement, stress and safety under five different working conditions for three schemes was done. Finally, the scheme of deep key wall without pile was recommended considering the own characteristics of high-rise intake tower.