文档介绍：轻型井点降水
施
工
方
案
XX工程公司
年月日
目录
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工程概况
本期设计为2×600MW亚临界汽轮发电机组.
工程地质情况:本工程持力层采用③圆砾层做持力层,③圆砾, ~, ~.④细中砂层, ~~.⑤圆砾层分布于④ ~.⑥粘土(残积土),褐色,稍湿,坚硬,.
编制依据
《火电施工质量检验及评定标准》
《电力建设施工及验收技术规范》
《建筑施工计算手册》
临时土方开挖图纸
降水方案选择
该项目地处伊敏河畔,属砂砾地质结构,渗透系数为150m/天,容水量大,受降水影响地下水位波动变幅1-2m .枯水期在--6m,处于临界状态,丰水期就无法施工,本工程采取地措施是:,防止丰水期淹没,-6m地,采用局部井点降水.
本工程主厂房基础底标高为-,不须采用井点降水,而循环水泵坑及汽轮机基础底标高为-,,,地面持力层为圆砾层,