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基于动力固结法分析了双层软土地基的设计、施工及检测过程,总结了施工前、后地基土体物理力学参数,分析并计算了地基加固深度及工后沉降,并分析后继的补救措施———水泥搅拌桩的工后沉降。结论表明:下卧软弱土层的双层地基经动力固结法处理后仍具有较大的工后沉降,水泥搅拌桩次之;对工后沉降及差异沉降要求较严格的工程采用动力排水固结法仍需谨慎。
Based on the dynamic consolidation method, the design, construction and testing process of double-layer soft soil foundation are analyzed. The physical and mechanical parameters of the soil before and after the foundation are summarized, the depth of foundation reinforcement and post-construction settlement are analyzed and calculated, and the subsequent remedies Measures --- cement mixing pile post-construction settlement. The conclusion shows that the double foundation of the lower soft soil layer still has larger post-construction settlement after cement consolidation treatment, followed by the cement mixing piles. The project with strict requirements on post-construction settlement and differential settlement adopts dynamic drainage The knot still needs to be cautious.