强夯应用于黄土高路堤填筑的试验研究  

Test and Study of Applying Dynamic Compaction on High Loess Embankment

作　　者：王月香[1,2] 丁建文[2] 李安勇[1] 顾欢达[1] 

机构地区：[1]苏州科技学院土木工程学院,苏州市205011 [2]东南大学交通学院,南京市205009

出　　处：《公路》2014年第1期80-85,共6页Highway

基　　金：国家自然科学基金资助;项目编号51178107;住建部基金资助;项目编号2009-K3-12;住建部基金资助;项目编号2009-K3-2

摘　　要：通过模型试验研究了黄土高路堤采用强夯填筑的加固范围。试验研究表明，采用强夯进行黄土的高路堤填筑能够在短时间满足填筑要求。强夯的侧向有效加固范围为距夯坑中心0．8～1．34倍夯锤直径，有效影响深度与夯击击数、初始含水率、初始干密度、夯锤直径、夯击能等多因素有关，并提出了有效影响深度公式。Based on the dynamic compaction model test, the effective compaction width and depth of high loess embankment have been studied. The test results reveal that the engineering properties of loess can meet with the requirements of embankment filled in a short time with dynamic compaction. The effective lateral width of compaction is 0.8-1.34 multiplied by pounder diameter. The effective depth of compaction has been related with many factors such as moisture content, tamping times, initial dry density, pounder diameter and tamping energy. To obtain the improvement depth, a mathematical equation is proposed and its reliability is demonstrated.

关 键 词：黄土 强夯 加固宽度 加固深度 

分 类 号：U416.1[交通运输工程—道路与铁道工程]