哈大铁路客运专线扶余段路基填料试验研究

在哈大铁路客运专线路基施工中,有的路段路基填料十分匮乏,需要寻找满足设计及规范要求且价格相对便宜的土料.在分析和调查路基填料技术要求和施工场地周边料源的基础上,进行了 A、B组填料及水泥改良土的室内试验.结果表明,吉林团山的土料满足A、B料的技术要求;水泥改良土可就地采用粉土.提出了满足设计技术要求、价格相对便宜的填料.

Experiments and Study of Fill Material for Railway Subgrade in Fuyu Section on Harbin-Dalian Passenger Railway Line

During the construction of the railway subgrade of Harbin-Dalian passenger railway line,there is a serious shortage in fill materials for railway subgrade in some sections.It is necessary to find a certain kind of soil which can satisfy the demand of designs and specifications but be relatively cheap.On the basis of analysis and investigation of the technical requirements of subgrade fill material and the material sources in the vicinity of the construction site.Laboratory tests of Types A and B of fill materials and cement modified soil were made and the test results indicated that the soil of Tuanshan in Jilin Province can satisfy the technical requirements of Types A and B of fill materials,and local silt can be used for cement modified soil.Fill materials satisfying the demand of designs and specifications but relatively cheaper are then proposed.