高速铁路路基改良土填筑试验及施工工艺研究  

Research on Filling Test and Construction Technology for Improved Soil of High-speed Railway Subgrade

作　　者：田玉兵 TIAN Yubing(China Railway 16th Bureau Group First Engineering Co.,Ltd.,Beijing 101300)

机构地区：[1]中铁十六局集团第一工程有限公司,北京101300

出　　处：《智能建筑与工程机械》2019年第3期24-26,共3页Intelligent Building and Construction Machinery

基　　金：中铁十六局集团第一工程有限公司新技术开发计划。

摘　　要：为确定掺有水泥的改良素土在高速铁路建设中应用和施工参数,以新建郑济铁路平原新区站路基填筑施工为依托,对水泥掺量为5%的素土填筑压实进行现场试验,根据设计及验标要求确定试验目的,总结施工参数;试验结果表明:素土中掺一定比例的水泥可有效提高路基压实效果,压实系数可以满足设计要求;通过试验所确定松铺厚度及机械碾压组合有效地提高施工效率和控制路基填筑质量;该试验总结成果可为类似工程提供参考。In order to verify the application of cement-enhanced soil improvement in the construction of highspeed railways and the determination of construction parameters,based on the construction of the subgrade of the new Zhengzhou-Zhejiang railway plain new area,the cement-encased soil is filled with 5% of the plain soil.Compaction is carried out on-site test,the purpose of the test is determined according to the requirements of design and standard verification,and the construction parameters are summarized.The test results show that mixing a certain proportion of cement in plain soil can effectively improve the compaction effect of the roadbed,and the compaction coefficient can meet the design requirements;The determined loose paving thickness and mechanical rolling compaction effectively improve the construction efficiency and control the subgrade filling quality;the results of this test can provide a reference for similar projects.

关 键 词：高速铁路 路基工程 水泥化学改良土 填筑试验 施工工艺 

分 类 号：U213.1[交通运输工程—道路与铁道工程]