文档介绍：贵州六盘高速公路
吴家寨隧道左线六盘端初步设计
摘要
随着科技的发展、社会的不断进步,高速公路的重要性越来越显著,而作为公路的一部分——隧道,对于施工和设计的要求也越来越高。本设计课题为高速公路隧道,重点研究新奥法施工。
贵州六盘高速公路吴家寨隧道为分离式单向行驶两车道隧道,左线全长298m,围岩的基本情况为:Ⅱ级围岩长155m;Ⅲ级围岩长90m;Ⅳ级围岩长53m。
隧道洞门设计成翼墙式洞门;隧道采用新奥法施工,隧道衬砌采用复合式衬砌;隧道开挖Ⅱ、Ⅲ级围岩使用全断面开挖法,Ⅳ级围岩使用台阶分部开挖法,采用钻爆法开挖;隧道的辅助施工方法有超前小导管注浆和超前锚杆;隧道通风方式为自然通风。
隧道经过多次计算和验算后,洞门、衬砌、照明和通风合格,可以正常施工。
关键词:隧道; 新奥法; 围岩; 复合式衬砌
THE PRELIMINARY DESIGN OF
THE LEFT LANE OF THE WUJIAZHAI TUNNEL IN GUIZHOU LIUPAN EXPRESSWAY
ABSTRACT
With the development of science and technology, social progress, the importance of highway ing more and more obvious, and as part of the road - the tunnel, for construction and design requirements have e more sophisticated. The design issues for highway tunnels, focuses on the construction of New Austrian Tunneling Method(NATM).
The left lane of the tunnel Wujiazhai in Guizhou Liupan Expressway separate one-way traffic for the two-lane tunnel, a total length of the left hand lane 298m, The basic situation of the surrounding rock:Ⅱgrade rock long 155m; Ⅲ grade rock long 90m; Ⅳgrade rock long 53m.
Portal designed wing of the tunnel wall Portal; Tunnel NATM construction, tunnel lining using cmposite lining; tunnel excavation Ⅱ, Ⅲ-class surrounding the use of full-face excavation method, Ⅳ grade level divisions surrounding the use of open digging method, using drill and blast excavation method; tunnel construction methods of supporting small catheter advanced and ahead of grouting bolt; tunnel ventilation for natural ventilation.
After several rounds of the tunnel after the calculation and checking, portal, lining, lighting and ventilation qualified to normal construction.
Key words: tunnel; New Austrian Tunneling Method; rock; cmposite lining
目录
第1章设计原始资料 1
采用的技术标准及设计标准规范 1
主要技术标准 1
主要设计标准规范 1
工程概况 1
1
第2章总体设计 3
3
3
纵断面设计 4
横断面设计 4
4
紧急停车带及横向通道 5
内轮廓设计 5
第 3 章洞门设计及强度与稳定性验算 6
洞口段地质评价 6
六盘水端 6
3