干振碎石桩法在处理可液化地基中的应用研究

根据高速公路工程液化地基加固试验研究,对干振碎石桩加固液化地基的原理、设计和施工参数进行讨论。通过地基处理前后桩间土物理力学性质、标准贯入试验、瑞利波试验、静力触探试验和孔隙水压力试验等测试结果的对比分析,表明干振碎石桩用于处理液化地基具有较大的优越性,处理后地基强度得到增强,消除了液化。

Application of Dry-Vibro Gravel Piles to Liquefied Foundation Treatment

On the basis of field tests of the liquefied foundation reinforced with dry-vibro gravel piles of expressways,the theory of reinforcement with dry-vibro gravel piles and parameters of design and construction are discussed in this paper.The tests of physical and mechanical properties,standard penetration test,static sounding test,pore water pressure test and SASW test are taken before and after treatments.The results show that the treatment of liquefied foundation with gravel piles has many advantages.After treatment of dry-vibro gravel piles,the strength of soil is improved and the liquefaction potential reduced.