复杂环境下超大规模深基坑支护施工技术

Large scale complex environments supporting technology for deep foundation

福州君临天华位于台江繁华商业区,周边均为高层建筑及城市主干道,场地原始地貌为福州盆地闽江古河道,地下水位高,基坑开挖面积大,开挖深度深,地质情况及周边环境复杂。基坑支护结构采用本工程采用型钢加锚杆支护体系,型钢外设水泥土搅拌桩双排止水帷幕,整个支护安全完成了土方开挖及地下室结构工程施工。

Junlin tianhua is located in Fuzhou Dragon days Taijiang bustling commercial district surrounding the city are high-rise buildings and main road,the original site of ancient landscapes for the Minjiang River in Fuzhou basin,high water table,excavation area,the depth of deep excavation,complex geological conditions and the surrounding environment.Excavation of the project uses the steel structure using additional bolting system,peripheral steel double cement mixing pile waterproof curtain,the entire supporting safe completion of the excavation and construction of underground structural works.