糯扎渡水电站右岸坝顶公路隧道洞口浅埋段及软弱围岩段施工方法  

Construction Methods for Shallow Bury Section and Weak Surrounding Rock Section at the Tunnel Entrance of Dam Crest Road on Right Bank of Nuozhadu Hydropower Station

作　　者：崔东[1] 李欣蓉 

机构地区：[1]华能澜沧江水电有限公司糯扎渡水电工程建设管理局,普洱665006 [2]云南浩立建筑安装工程公司,普洱665006

出　　处：《中国水能及电气化》2011年第7期55-60,共6页China Water Power & Electrification

摘　　要：介绍了糯扎渡水电站右岸坝顶公路1#隧道进口段及隧道软弱围岩段的施工方法及工艺。对隧道进洞套拱施工方法、超前小管棚施工方法和短台阶施工方法分别进行了探讨,提出了施工过程中易出现的问题及其解决方法。In this thesis, the construction method and technology of the entrance section and weak surrounding rock section of the 1# tunnel of the dam crest road on the right bank of Nuozhadu hydropower station is introduced. The construction methods for the tunnel entrance arcs, the small tube tent and short stairs are discussed, and the problems that will be met during the construction and possible solutions are put forward.

关 键 词：隧道进洞 洞口浅埋 软弱围岩 施工方法 

分 类 号：U455.49[建筑科学—桥梁与隧道工程]