首页 | 本学科首页   官方微博 | 高级检索  
     检索      

石板沟隧道洞口Ⅱ类围岩浅埋段施工方法
引用本文:杨昌斌,谭松林,左昌群.石板沟隧道洞口Ⅱ类围岩浅埋段施工方法[J].安全与环境工程,2002,9(3):17-19,23.
作者姓名:杨昌斌  谭松林  左昌群
作者单位:1. 中国地质大学研究生院,武汉,430074
2. 中国地质大学工程学院,武汉,430074
摘    要:公路隧道的洞口浅埋段,多处于覆盖层,坡积层或风化严重的软弱破碎岩体中,在这样的地段进洞,目前均普遍采用新奥法施工,洞口段的施工工艺亦需简化,于是探讨不用明洞进洞施工方法显得很必要。然而许多隧道在局部区域可能埋深很浅,在这样的浅埋段施工,如果稍有不慎,就会导致通天坍塌,因此有必要采用地表锚杆或超前小导管注浆预加固。

关 键 词:隧道  Ⅱ类围岩浅埋段  边仰坡加固  暗挖法  地表锚杆预加固  工程地质条件  施工工艺
文章编号:1671-1556(2002)03-0017-03

The Safe Construction Method of Entrance of Tunnel in the Layer of Class Ⅱ Shallow Buried Adjoining Rock
Yang Changbin,Tan Songlin,Zuo Changqun.The Safe Construction Method of Entrance of Tunnel in the Layer of Class Ⅱ Shallow Buried Adjoining Rock[J].Safety and Environmental Engineering,2002,9(3):17-19,23.
Authors:Yang Changbin  Tan Songlin  Zuo Changqun
Institution:Yang Changbin 1 Tan Songlin 2 Zuo Changqun 2
Abstract:The shallow buried layer of tunnel entrance section lies in the overburden or drift bed layer and highly weathered broken rockmass.The method of tunnel excavation in this section at present is the New Austria Method, but the construction techniques should be simplified. So it is necessary to discuss the construction method of the tunnel entrance section,especially the cut method. However,we must be well acknowledged that some sections of most tunnels lie in the shallow buried layer. Otherwise,carelessness will lead to tunnel collapse.So the surface anchor-shotcrete reinforcement in advance is essential.
Keywords:
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号