公路隧道大管棚超前支护技术与工程实践  

Exceeding Support Technology and Project Practice of Highway Tunnel Large Pipe-shelf

作　　者：张长亮[1] 石平 金美海[1] 

机构地区：[1]重庆交通大学,重庆400074 [2]中铁十五局第二工程有限公司第三指挥部,重庆400074

出　　处：《交通标准化》2007年第8期164-168,共5页Communications Standardization

摘　　要：超前大管棚支护是隧道施工中穿越软弱破碎围岩的一种有效的加固施工方法。通过介绍超前大管棚在不良地质隧道施工中的受力原理、大管棚设计与施工要点及适用范围等内容,并结合重庆玉峰山隧道出口洞口段超前大管棚施工实例,对超前管棚在施工中的应用价值做一论证,有助于该方法的应用推广。Exceeding large pipeshelf support is effective reinforce construction measure which can traverse goneness and break wall rock in tunnel construction. Combined the example of exceeding large pipeshelf construction in tunnel exit section of Chongqing Yufeng mountain, introduction on the loading principle, design and construction key points and apply range of exceeding large pipeshelf in bad geo graphical tunnel, and the application value of exceeding large pipeshelf has been demonstrated.

关 键 词：隧道 超前支护 大管棚 施工 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]