沉积地层深基坑降水施工技术研究  

Study on the Dewatering Construction Technology for Deep Foundation Pit in Sedimentary Strata

作　　者：胥勇 XU Yong(China Railway 20th Bureau Group Third Engineering Co.Ltd.,Chongqing 400065,China)

机构地区：[1]中铁二十局集团第三工程有限公司,重庆400065

出　　处：《工程建设与设计》2025年第6期178-180,共3页Construction & Design for Engineering

摘　　要：结合工程案例,研究沉积地层深基坑降水施工技术,包括降水井设置、开挖暗沟沟槽、计算深基坑涌水量、修整边坡,并对施工效果进行分析。结果表明,在停止降水后,各观测井的水位均有所恢复,坑内观测井恢复水位为4.65~4.95 m,坑外观测井恢复水位为4.55~4.85 m,证明沉积地层深基坑降水施工技术达到了降低地下水位的预期效果,有效控制了地下水位。Combined with engineering cases,the dewatering construction technology of deep foundation pit in sedimentary strata is studied,including setting of dewatering well,excavation of dark trench,calculation of water inflow of deep foundation pit,trimming of slope,and the construction effect is analyzed.The results show that the water level of each observation well recovers after the dewatering is stopped.The restored water level of the observation well in the pit is 4.65~4.95 m,and the restored water level of the pit surface logging is 4.55~4.85 m,which proves that the dewatering construction technology of deep foundation pit in sedimentary formation has achieved the expected effect of reducing the groundwater level and effectively controlling the groundwater level.

关 键 词：沉积地层 深基坑 降水井 涌水量 排水暗沟 

分 类 号：TU753.66[建筑科学—建筑技术科学]