富水砂卵石地层基坑降水工程的设计与施工

Design and Construction of Foundation Pit Dewatering Project in Water-Rich Sandy Pebble Stratum

深基坑降水是确保工程安全的重要工程技术措施。论文以成都地铁4号线二期南熏大道站基坑降水工程为例,论述了基坑降水方案设计方法,得到了基坑涌水量及降水井数量。通过南熏大道站基坑降水工程实践,效果显著,可为成都地区富水砂卵石地层类似工程基坑降水提供技术参考。

Deep foundation pit dewatering is an important technical measure to ensure engineering safety.Taking the foundation pit dewatering project of Nanxun Dadao station in the second phase of Chengdu Metro Line 4 as an example,this paper discusses the design method of foundation pit dewatering scheme,and obtains the water inflow of foundation pit and the number of dewatering wells.Through the practice of foundation pit dewatering in Nanxun Dadao station,the effect is remarkable,which can provide technical reference for similar projects of foundation pit dewatering in water-rich sandy pebble stratum in Chengdu area.