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芝川河大桥承台开挖时遇到了流砂、涌水现象,严重影响了施工,为保证工程质量,提出采用群井降水配合开挖的施工方案,进行了群井降水试验,介绍了群井降水场地参数的选取和群井的设计参数的计算。
Severe sand and water gushing were encountered during the excavation of the platform of Zhichuan River Bridge, which seriously affected the construction. In order to ensure the quality of the project, a scheme of grouping well with excavation was put forward to conduct group well dewatering test. Selection of parameters and calculation of design parameters of well group.