砂石桩非连续屏障隔振试验研究  

Experimental research on vibration isolation by discontinuous barrier on sand-gravel pile

作　　者：虞红海 YU Hong-hai(Ningbo Zhoushan Port Group Co.,Ltd.,Ningbo 315800,China;Ningbo Port Engineering Project Management&Consultant Co.,Ltd.,Ningbo 315800,China)

机构地区：[1]宁波舟山港集团有限公司,浙江宁波315800 [2]宁波港工程项目管理有限公司,浙江宁波315800

出　　处：《水运工程》2018年第2期203-205,210,共4页Port & Waterway Engineering

摘　　要：针对强夯施工产生的强烈地面振动会对周围人和环境产生不利影响、采用连续屏障隔振成本较高的问题,进行强夯振动试验和砂石桩隔振试验研究。对比研究不同砂石桩材料、桩距的试验方法,得到不同材料、桩距砂石桩的隔振效果差异,得出"砂石桩屏障对强夯具有较好的隔振效果,且隔振效果随砂石桩间距变小而增强"的结论。In view that the strong ground vibration produced by dynamic compaction construction has adverse effects on the people nearby and the environment and the cost of the use of continuous barrier vibration isolation is high,we carry out dynamic compaction test and sand-gravel pile vibration isolation test to study the influences of sand-gravel pile materials and pile spacing on the vibration isolation effect.The results show that sand-gravel pile barrier provides a significant vibration isolation effect on the dynamic compaction,and the vibration isolation effect is enhanced with the decrease of pile spacing.

关 键 词：砂石桩 非连续屏障 强夯振动 现场试验 

分 类 号：U655.55[交通运输工程—港口、海岸及近海工程]