强夯法加固水力吹填砂及其下软弱地基

Foundation stabilization of hydraulic filled sand and sublayer soft soil by dynamic compaction method

三个夯击加固试验区的试验结果表明,用强夯法加固的水力吹填砂及其下深厚软弱地基的物理力学性指标和强度均有较大的提高.地基承载力由天然地基的70kPa提高到380kPa,能满足拟建结构物对地基承载力和变形的要求.

According to the test results of three demonstration areas, it can be found that the physical and mechanical indexes and strength of the hydraulic filled sand and deep soft soil are fairly improved by dynamic compaction method. The bearing capacity of the foundation is raised from 70 kPa for natural foundation to 380 kPa, which can meet the demands of bearing capacity and deformation of the planned structure.