绥东机场高填方强夯试验研究  

Dynamic compaction test of high-filled embankment for Suidong airport

作　　者：熊复慧 李向东 马耀辉 周丽娜 XIONG Fuhui;LI Xiangdong;MA Yaohui;ZHOU Lina(Heilongjiang Province Hydraulic Research Institute,Harbin 150080,China)

机构地区：[1]黑龙江省水利科学研究院,黑龙江哈尔滨150080

出　　处：《水利科学与寒区工程》2018年第10期7-13,共7页Hydro Science And Cold Zone Engineering

摘　　要：本文在绥东机场D1、D2区铺设不同厚度(3.0 m、4.0 m)填筑料的试验段中进行,强夯试验选用3000kN·m点夯与1000kN·m满夯方式,以强风化玄武岩为填筑料。结果表明:强夯7击后,填筑3.0m的试验区有29个夯点达到停夯标准;填筑4.0m试验区仅有12个夯点达到停夯标准。试验不宜选用动力触探测定地基承载力,强夯处理后,填筑区固体体积率均达到设计要求。A dynamic compaction test of high-filled embankment for Suidong airport was mainly implemented in this test section.Heavily weathered basalt as filling materials were filled at D1 area and D2 area for different thickness(3.0 m and 4.0 m).Then it was tamped by a compaction effort of 3000 kN·m with point ramming and a compaction effort of 1000 kN·m with full ramming.Test results indicated that twenty-nine tamping points at three meters filled area of tests were stopped ram after seven times of dynamic compaction,while only twelve tamping points reached the same level at four meters of filling layer.Besides,it was advisable to choose plate loading test rather than dynamic sounding test to measure the subgrade bearing capacity.Finally,solid volume rate of filling areas met the design requirements after dynamic compaction.

关 键 词：高填方 强夯 动力触探 固体体积率 

分 类 号：U416.11[交通运输工程—道路与铁道工程]