碱渣土场地超大型深基坑支护设计施工

摘要

Through the super large deep foundation pit engineering examples of a alkaline residue site in Binhai new area, this paper made soil test on alkaline residue sampling, revised the shear strength index in original survey report, optimized the design scheme of deep foundation pit, through the deformation monitoring data showed in construction process, the supporting system deformation amount did not exceed cordon, founda- tion pit operated stability, effectively ensured the structure construction.%结合滨海新区某碱渣土场地上的超大型深基坑工程实例，对碱渣土取样进行土工试验，修正了原勘察报告抗剪强度指标，优化了深基坑设计方案，通过施工的变形监测数据显示，支护体系变形量未超警戒值，基坑运行稳定，有效保证了结构施工。