摘要
目前我国浅埋隧道下穿公路时引起的路面沉降值大多采用北京、深圳地铁的经验值3 cm作为其控制基准,具有一定的盲目性.本文从满足路面功能性角度出发,以路面平整度和路面行驶的舒适性为依据,把路面纵向沉降断面假定为二次抛物线形,得出了在隧道与路面正交下穿的情况下隧道开挖对路面纵向影响范围内的最大沉降值,继而制定相应的路面沉降控制基准.
At present, the pavement settlement induced by shallow buried tunnel to under-traverse highway mainly adopt the empirical value（3 centimeters） from Beijing or Shenzhen metro, which is not reliable to some extent. Based on the pavement evenness and running comfort ability in view of meeting the pavement service function requirement, and through supposing the longitudinal pavement settlement cross section as an quadratic parabola, the maximal settlement value in the range of longitudinal pavement influence is obtained with the tunnel under-traverse highway perpendicularly. Conse-quently, the controlling standard is determined.
出处
《北京交通大学学报》
EI
CAS
CSCD
北大核心
2008年第4期137-140,共4页
JOURNAL OF BEIJING JIAOTONG UNIVERSITY
关键词
隧道
路面沉降控制基准
平整度
下穿
tunnels
pavement settlement controlling standard
flatness
under-traverse
作者简介
张鹏（1983-），男，陕西宝鸡人，硕士；E-mail：zippor2005@sohu.com
