摘要
以洪酉路6号棚洞为研究对象,建立模型进行试验。通过模拟不同边坡坡率和不同回填体材料的相互组合情况来监测棚洞结构的内力变化及其对边坡的支撑作用,用量测仪器监控棚洞结构主要受力部位的变化。模拟分析公路隧道中棚洞结构、边坡围岩和回填体3者之间的影响关系,从而指出在由棚洞结构、边坡围岩和回填体组成的系统中,并非所有坡率相同和回填材料相同的情况下,棚洞结构受力岩质边坡都优于土质边坡;还指出了棚洞施工回填体材料和边坡坡率变化组合的优化方案,对出现高边坡时的棚洞设计和施工具有很好的参考价值和指导意义。
This paper based on No. 6 shed gallery on Hongan--Youyang Highway as the object of research establishes a model for experiment. Changes of internal force of shed gallery structure and its support for slope are monitored by simulating mutual combination between different slope rates and different backfilling body materials, and changes of main pars of shed gallery structure under stress are monitored by measuring instruments. By simulating and analyzing influencing relationship among shed gallery structure, slope wall rock and backfilling body in highway tunnels, the paper points out in the system composed of shed gallery structure, slope wall rock and backfilling body not all rock slopes of shed gallery structure are superior to soil slopes in the case that all slope rates and backfilling materials are the same; and also points out that the optimized scheme of combination between backfilling body materials and changes of slope rates in construction of shed gallery exhibits good reference value and instructive significance for design and construction of shed gallery when high slopes appear.
出处
《公路交通技术》
2011年第5期101-106,共6页
Technology of Highway and Transport
关键词
公路
结构
棚洞
高边坡
highway
structure
shed gallery
high slope
