填方路基强夯加固效果及影响因素研究  

Study on Consolidation Effect and Influencing Factors of Dynamic Consolidation on Filling Subgrade

作　　者：蒋洋[1] 孙文彬[1] 柴贺军[2] 

机构地区：[1]淮阴工学院,江苏淮安223001 [2]重庆交通科研设计院,重庆400067

出　　处：《工程勘察》2007年第12期6-9,共4页Geotechnical Investigation & Surveying

基　　金：交通部交通应用基础研究项目资助(2005319740090)

摘　　要：采用动力有限元方法分析了夯锤落高、夯击方式、夯击间距等夯击参数对强夯加固效果的影响。通过现场试验,阐述了强夯参数的具体取值方法以及强夯对填方路基的加固效果。得到结论：在一定的路基条件下存在一个最佳夯击次数;同等能量条件下,轻锤重夯的加固深度和影响范围小于重锤轻夯;强夯有效加固范围一般为夯锤直径的1.5~2.5倍。The parameters of dynamic consolidation impacting on consolidation effect such as falling distance of rammer, impact mode, impact space, ete. are analyzed by dynamic FEM method. The method of ehoosing parameters of dynamic consolidation and consolidation effect of dynamic consolidation on filling s nated by field test. Conclusions are drawn ： optimal impact times of a s e is available; the consolidate depth and influencing area by light rammer with heavy impact is less than the depth and the area by heavy rammer with light impact when impact energy is equal ; the available consolidate range of dynamic consolidation is about 1.5 to 2.5 times of rammer diameter.

关 键 词：强夯 填方路基 动力有限元 影响因素 加固效果 

分 类 号：U416.1[交通运输工程—道路与铁道工程]