This study was carried out to evaluate the resistance of overlaid pavement incorporating stress absorbing membrane interlayers to permanent deformation. In this study, the permanent deformation of the interlayer mixtu...This study was carried out to evaluate the resistance of overlaid pavement incorporating stress absorbing membrane interlayers to permanent deformation. In this study, the permanent deformation of the interlayer mixtures was determined using the RLAT （repeated load axial text） carried out in the Nottingham Asphalt Tester. Also, a test pavement was constructed in the laboratory to assess the resistance to permanent deformation of overlaid pavement incorporating SAMIs （stress absorbing membrane interlayers）. The test pavement was divided into two along the centre line. Each of the divisions has three sections--two having SAMIs and one without SAMIs. The pavement was instrumented and trafficked. Trafficking was stopped when the pavement was deemed to have failed. The results showed that the measured permanent deformation values of the control sections were less than the sections having SAMIs. The increased permanent deformation values indicate that the introduction of SAMIs causes more vertical/horizontal deformation of the pavement. It was also found that the permanent deformation values varied depending on the composition and thickness of the SAMIs.展开更多
建设项目压覆矿产资源调查鉴定分析系统是以地理信息系统(Geographic Information Sys-tem,GIS)为基础,利用VB6.0开发而成。系统界面友好,反应速度快,在实现对建设项目数据资料管理的同时,可以直接读取现有的矿区空间数据库、探矿权数...建设项目压覆矿产资源调查鉴定分析系统是以地理信息系统(Geographic Information Sys-tem,GIS)为基础,利用VB6.0开发而成。系统界面友好,反应速度快,在实现对建设项目数据资料管理的同时,可以直接读取现有的矿区空间数据库、探矿权数据库、采矿权数据库中的数据,对建设项目压覆矿产资源情况进行分析,支持分析成果的BMPJ、PG格式图象输出,支持分析报告的实时打印与Microsoft Word 2000/2003格式输出。展开更多
文摘This study was carried out to evaluate the resistance of overlaid pavement incorporating stress absorbing membrane interlayers to permanent deformation. In this study, the permanent deformation of the interlayer mixtures was determined using the RLAT （repeated load axial text） carried out in the Nottingham Asphalt Tester. Also, a test pavement was constructed in the laboratory to assess the resistance to permanent deformation of overlaid pavement incorporating SAMIs （stress absorbing membrane interlayers）. The test pavement was divided into two along the centre line. Each of the divisions has three sections--two having SAMIs and one without SAMIs. The pavement was instrumented and trafficked. Trafficking was stopped when the pavement was deemed to have failed. The results showed that the measured permanent deformation values of the control sections were less than the sections having SAMIs. The increased permanent deformation values indicate that the introduction of SAMIs causes more vertical/horizontal deformation of the pavement. It was also found that the permanent deformation values varied depending on the composition and thickness of the SAMIs.
文摘建设项目压覆矿产资源调查鉴定分析系统是以地理信息系统(Geographic Information Sys-tem,GIS)为基础,利用VB6.0开发而成。系统界面友好,反应速度快,在实现对建设项目数据资料管理的同时,可以直接读取现有的矿区空间数据库、探矿权数据库、采矿权数据库中的数据,对建设项目压覆矿产资源情况进行分析,支持分析成果的BMPJ、PG格式图象输出,支持分析报告的实时打印与Microsoft Word 2000/2003格式输出。
