作　　者： ; (李志农）;

机构地区： 新疆维吾尔族自治区交通厅新疆乌鲁木齐830000

出　　处： 《中国公路学报》 2007年第2期23-28,共6页

摘　　要： 针对新疆很多地区干旱缺水、路基压实困难的现状,选择了3种典型土类(砾石土、风积沙、粉土)系统地进行了粒度分析、击实特性、动态特性、沉降特性等试验;在此基础上修筑了相应的试验路段,进行了3种典型土类的路基干压实施工工艺及路用性能试验研究。试验研究及工程实践结果表明:对于砾石土及风积沙,采用干压实施工工艺修筑路基是完全可行的;对于粉土,在采取隔断措施后,可在较低含水量条件下进行路基压实。 Considering the difficulty of subgrade compaction due to dry climate and water shortage, authors selected 3 types of soils, ie gravel earth, aeolian sand and silt, for systematical granular analysis and experiment of compaction feature, dynamic features and settlement features. Based on the data, the relevant trial section was constructed with which studies were made on construction techniques of dry compaction and road performance with the 3 types of soils. The results of experiments and engineering show that it is feasible to adopt dry compaction procedure for subgrade construction road. However, the compaction of subgrade with silt requires isolation measure with low water content.

关 键 词： 道路工程 路基 试验研究 干压实 含水量 砾石土 风积沙 粉土

领　　域： [交通运输工程]