摘要
为提高含砂低液限黄土路堤的压实效果，对神河高速公路K65＋950～K66＋139路段进行了研究。测定了路堤填土的天然含水率、颗粒组成、密度和界限含水率等指标，确定了6套压实方案并分别进行了现场压实试验。通过对压实效果的对比分析，提出了“羊角碾（弱振2遍＋强振2遍）＋光轮压路机（强振2遍静压＋2遍收面），松铺厚度35 cm ，最佳含水率方案”为推荐方案，提出了含砂低液限黄土路堤压实施工工艺。
In order to improve the compaction efficiency of embankment of low liquid limit loess with sand ,K65＋950~K66＋139 segment of Shenhe Expressway was studied .The natural moisture con‐tent ,particle composition ,density and boundaries moisture content of embankment filling soil were determined .Six sets of experimental plans w ere determined ,through analyzing the compaction effect , the proposal plan ,claw grinding （weak vibration for 2 times ＋ strong vibration for 2 times） ＋ light roller （strong vibration for 2 times＋ leveling for 2 times） ,soil thickness for 35cm ,optimum moisture content ,was put forward ,construction technology of low liquid limit loess with sand embankment compaction were proposed .This study is of some engineering meaning for it can provide reference for compaction of embankment of low liquid limit loess with sand .
出处
《武汉理工大学学报（交通科学与工程版）》
2015年第5期1087-1090,共4页
Journal of Wuhan University of Technology（Transportation Science & Engineering）
关键词
道路工程
路堤
含砂低液限黄土
压实
对比试验
施工工艺
road engineering
embankment
low liquid limit loess with sand
compaction
comparison test
construction technology
