芜湖·名流印象工程深基坑支护技术

Support Technology of Deep Foundation Excavation in Wuhu·Mingliuyinxiang

芜湖·名流印象工程占地面积约87000m2,2层地下室,属深大基坑支护工程。基坑采用支护桩联合斜向加筋水泥土锚桩支护,放坡处土钉支护,结合基坑周围环境条件复杂及基坑本身特点,分段采用不同的支护技术。实施信息化施工,基坑大阳角处支护结构施工期间位移与沉降均超过预警设计值,结合监测结果,采取相应的加固措施,保证了基坑正常施工。

Wuhu·Mingliuyinxiang project is about 87 000m2.It is designed with two-storey basement,which belongs to deep and large foundation excavation support project.Support piles combining with inclined reinforced cement-soil anchor piles are designed as support structure,and soil nailing is used at the slope.According to surrounding condition and characteristics of the foundation excavation,different support structures are designed at different segments.Furthermore,information construction technology is adopted.The support displacement and deformation at the large exposed corner of foundation excavation are larger than designed alarm values.Then reinforcement measures are adopted according to the monitoring results to ensure successful construction.