软土地基土方开挖施工控制措施

Construction Control Measures of Earthwork Excavation in Soft Soil Foundation

在软土地基基坑开挖施工过程中,倘若措施不当,极易造成搅拌桩糊钻、预应力管桩断裂、基坑围护变形或失稳。结合工程实际,通过增设空压机的办法有效地解决了双轴搅拌桩糊钻的问题,并以二级小角度放坡、小分段开挖等技术措施有效地保护了预应力管桩,控制了围护的变形。

In the process of excavation and construction of foundation pit in soft soil foundation, if improper measures are taken, it is easy to cause mixing pile paste drilling, pre-stressed pipe pile facture, deformation or instability of foundation pit support. Combining with engineering practice, the problem of biaxial mixing piles paste drilling is effectively solved by adding air compressor, and the secondary small angle slope small section excavation effectively protects the prestressed pipe pile, effectively control the retaining support deformation.