武汉理工大学学报(交通科学与工程版)
武漢理工大學學報(交通科學與工程版)
무한리공대학학보(교통과학여공정판)
Journal of Wuhan University of Technology (Transportation Science & Engineering)
2015年
5期
1087-1090
,共4页
道路工程%路堤%含砂低液限黄土%压实%对比试验%施工工艺
道路工程%路隄%含砂低液限黃土%壓實%對比試驗%施工工藝
도로공정%로제%함사저액한황토%압실%대비시험%시공공예
road engineering%embankment%low liquid limit loess with sand%compaction%comparison test%construction technology
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。
為提高含砂低液限黃土路隄的壓實效果,對神河高速公路K65+950~K66+139路段進行瞭研究。測定瞭路隄填土的天然含水率、顆粒組成、密度和界限含水率等指標,確定瞭6套壓實方案併分彆進行瞭現場壓實試驗。通過對壓實效果的對比分析,提齣瞭“羊角碾(弱振2遍+彊振2遍)+光輪壓路機(彊振2遍靜壓+2遍收麵),鬆鋪厚度35 cm ,最佳含水率方案”為推薦方案,提齣瞭含砂低液限黃土路隄壓實施工工藝。
위제고함사저액한황토로제적압실효과,대신하고속공로K65+950~K66+139로단진행료연구。측정료로제전토적천연함수솔、과립조성、밀도화계한함수솔등지표,학정료6투압실방안병분별진행료현장압실시험。통과대압실효과적대비분석,제출료“양각년(약진2편+강진2편)+광륜압로궤(강진2편정압+2편수면),송포후도35 cm ,최가함수솔방안”위추천방안,제출료함사저액한황토로제압실시공공예。
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 .