Discussion to some question in the design of long railway tunnels 铁路长大隧道设计中若干问题的探讨
Code for design on tunnel of railway 铁路隧道设计规范
Code for design of road tunnel 公路隧道设计规范
But the base of tunnel is not regarded in tunnel design , which cause tunnel disease 我国铁路隧道设计中普遍存在“重拱轻底”的思想,由于基底结构薄弱而引起的隧道病害问题严重。
Some experiences on guangzhou metro are summed up and some suggestions on the present design of shield driven tunnel are put forward 总结了广州盾构隧道设计中的成功经验,并对当前盾构隧道设计中有关问题提出了建议。
There are disparities between the standard drawing used in home and abroad after surveying and studying the actuality of the tunnel design 通过调研国内外隧道设计现状发现,我国隧道设计中采用的标准图与国外相比存在差距。
Taking the design of sanfangwan tunnel in pingchuang to hanshui section of 202 provincial road of sichuan for example , the key points of the design for the shallow - buried highway tunnel are expounded 摘要以四川202省道平昌涵水段三房湾隧道的设计为例,阐述了该浅埋公路隧道设计的要点。
On the base of introduction of highway tunnel areal geology condition and unite tunnel design , the programme of unite arch tunnel construction is theoretically calculated and analyzed 在介绍高速公路隧道区域地质情况及联拱隧道设计的基础上,对联拱隧道的施工方案从理论上进行了计算分析。
The stability of lining structure and rock of tunnels should consider the action of external load . however , there is no theoritical basis for all this at present time 按“控制排水”原则来设计隧道防排水,隧道衬砌结构受力和围岩稳定性影响宜考虑外水荷载的作用,然而现行隧道设计规范尚没有这方面的理论和依据。
In accordance with railway tunnel design criteria , by using ansys fem program , a comparative analysis of lining structure static behavior is carried out , which is considered both with external water load and without it 利用铁路隧道设计规范有关规定和计算方法,用ansys有限元计算软件,分考虑外水荷载和不计两种情况对衬砌结构的静力受力特征进行比较分析。