挤密砂桩在地基抗液化中的应用

Application of compaction sand piles in foundation anti-liquefaction

针对在砂土地基上修筑直立式护岸的稳定问题,以海口市某填岛工程为例,研究了挤密砂桩在直立式护岸地基抗液化中的应用。地基液化指数计算表明:在砂土地基上修建直立式护岸,施打挤密砂桩是必要的且可行的,挤密砂桩可有效增加砂土的密实度,消除砂土的液化。现场试验检测也证明通过挤密砂桩处理过的砂土地基满足抗液化要求,能保障直立式护岸的稳定。

For the stability of the vertical revetment constructed on sand foundation, an island filling projectin Haikou city is elected to research the application of compaction sand piles in the vertical revetment foundationanti-liquefaction.The calculations on the foundation liquefaction index indicate that it is necessary and feasible topile compaction sand piles when constructing vertical revetment on sand foundation, and that compaction sand pilescan increase the density of sand and eliminate sand liquefaction.Meanwhile, the results of field tests also prove thatthe sand foundation processed with compaction sand piles meets the anti-liquefaction requirements, and canguarantee the stability of the vertical revetment.