浅谈“排水下沉法”沉井施工中的深井降水

深井降水的目的是为了降低沉井附近区域的地下水位,使沉井在施工中锅底无水,达到干施工的效果。该文以上海临港新城重装备产业区一期市政配套工程Y2雨水泵站工程项目为背景,结合项目中为配合"排水下沉法"施工的沉井所采用的深井降水施工,对深井降水施工工艺进行讨论,可供今后类似工程参考。

Elementary Discussion on Deep Well Dewatering in Construction of Open Caisson by "Drainage Sinking Method"

The aim of deep well dewatering is to reduce the underground water level of the area near the open caisson,to make the open caisson no water at the bottom under the construction so as to reach the effect of dry construction.Taking the Phase I municipal supported project of Y2 Rainwater Pumping Station Project of Shanghai Lingang New City Heavy Equipment Industry Area as the background,and combined with the project cooperating the deep well dewatering construction used for the open caisson by "drainage sinking method",the article discusses the deep well dewatering construction technology able to provide the reference for the similar projects.