盖挖逆作法基坑生产性抽水试验施工工艺探讨  

Discussion on the Construction Technology of Production Pumping Test for Foundation Pit by Inverted Construction Method

作　　者：李果遥 马涛 王静 LI Guoyao;MA Tao;WANG Jing(Shanghai Changkai Geotechnical Engineering Co.Ltd.,Shanghai 200093,China)

机构地区：[1]上海长凯岩土工程有限公司,上海200093

出　　处：《天津建设科技》2024年第4期26-28,共3页Tianjin Construction Science and Technology

摘　　要：盖挖逆作法施工的基坑在顶板施工并覆土完成后,需要进行生产性抽水试验,以地铁项目为例,采用降水井内预置的振弦式孔隙水压计的施工工艺,从而换算出坑内降水井水位变化情况,以保证生产性抽水试验的顺利进行。For the basement excavated by the inverted construction method,after the top slab is completed and the soil is covered,a production water test is required.Using a subway project as an example,the construction process involves placing a piezoelectric porosity water pressure gauge in the well to calculate the water level change in the well,thereby ensuring the successful completion of the production water test.

关 键 词：盖挖逆作法 抽水试验 基坑降水 振弦式孔隙水压计 地铁 

分 类 号：U231.3[交通运输工程—道路与铁道工程]