高速公路全风化花岗岩路基施工技术研究  

Research on the Construction Technology of Weathered Granite Subgrade of Expressway

作　　者：张曼 ZHANG Man(Shijiazhuang Road and Bridge Construction Group Co.Ltd.,Shijiazhuang 050000,China)

机构地区：[1]石家庄市公路桥梁建设集团有限公司,石家庄050000

出　　处：《工程建设与设计》2023年第13期226-228,共3页Construction & Design for Engineering

摘　　要：为解决全风化花岗岩用作高速公路路基填料时安全性不足等问题,结合具体工程,研究其改良技术以及施工技术,发现当以水泥作为改良剂时,采用的压实方案为静压1次、高振碾压3次、静压1次,全风化花岗岩路基压实度得到了很大的改善并且能够符合工程规定的压实度要求。In order to solve the problem of insufficient safety when fully weathered granite is used as filling material of highway subgrade,the improvement technology and construction technology are studied in combination with specific projects.It is found that when cement is used as modifier,the compaction scheme adopted is one time of static pressing,three times ofhigh vibration rolling and one time of static pressing.The compaction degree of the weathered granite subgrade has been greatly improved and can meet the requirements of engineering compaction degree.

关 键 词：全风化花岗岩 压实机理 路基改良 施工技术 

分 类 号：U416.1[交通运输工程—道路与铁道工程] U414