tunnels in china造句

• Construction technology of baiyinshan tunnel in china
  中国白银山隧道施工技术
• Shield tunneling has become one of the important construction methods for metro tunnels in china
  摘要盾构施工技术已发展成为我国地铁随道施工的重要工法之一。
• Combined with the engineering practice of small interval tunnel in china , this paper points out its five key technology problems : its concept , reasonable clear interval , support parameter , construction method and strengthening technology for the shamed surrounding rock
  摘要结合国内小净距隧道建设现状，笔者认为其设计施工关键技术主要在于小净距随道的合理净距、支护参数、施工方法、中夹岩加固技术等。
• Up to now , the drainage and waterproof system design of most railway tunnels in china did n ' t consider the action of external water load , based on the principle of unlimited drainage , so a great number of railway tunnels have the problem of leakage water , some of which are very serious
  到目前为止，我国大部分铁路隧道防排水设计主要按“无限制排水” 、尚未考虑外水荷载的作用，按这样的原则设计隧道防排水存在许多缺陷，有“十隧九漏”的说法，带来了很多严重问题。