岩土力学2012，Vol.33Issue(2)：558-563,576,7.
铁路隧道下穿公路引起的路面沉降规律和控制基准研究
Study of road surface settlement rule and controlled criterion for railway tunnel undercrossing highway
摘要
Abstract
At present, there is no unified surface settlement rule and controlled criterion for the settlement induced by railway tunnel undercrossing highway, which is researched only based on an actual project. From the aspects of longitudinal-transverse slope, smoothness, and requirements for stability of highway, the requirements for smoothness are adopted to control road surface uneven settlement during construction. According to embankment height, tunnel size, depth, geology, construction method, construction process of single and dual-lane railway tunnels undercrossing highway is simulated by FLAC software. The rule of road surface settlement is studied. In addition, the width coefficient of settling tank and prediction model for the largest settlement are obtained. Based on them, pavement surface settlement controlled criterion is established for railway tunnel undercrossing highway. At the same time, the rationality of controlled criterion is verified through several case studies. The results can provide reference for establishment of pavement surface settlement controlled criterion for railway tunnel undercrossing surface buildings.关键词
下穿/隧道/平整度/路面沉降Key words
undercrossing/ tunnel/ smoothness/ road surface settlement分类
建筑与水利引用本文复制引用
朱正国,黄松,朱永全..铁路隧道下穿公路引起的路面沉降规律和控制基准研究[J].岩土力学,2012,33(2):558-563,576,7.基金项目
铁道部科技研究开发计划重点课题(No.2008G024-B). （No.2008G024-B）
