大跨度隧道软弱膨胀围岩段施工控制技术  

Construction Control Technology of Weak Expansion Surrounding RockSection of Large Span Tunnel

作　　者：李雷明 LI Lei-ming(China Railway 14th Bureau Group Co.,Ltd.Vocational Education Training Center,Ji'nan 250010,China)

机构地区：[1]中铁十四局集团职业教育培训中心,济南250010

出　　处：《价值工程》2020年第16期145-146,共2页Value Engineering

摘　　要：在地质软弱破碎、膨胀性围岩的大跨度隧道施工中,围岩变形、初支开裂是常见的施工问题,制定经济合理的处置措施,安全、快速通过是施工的关键。本文根据施工隧道的实际情况,制定了合理的施工控制技术,可为今后类似工程的施工提供一定的借鉴。In the construction of large-span tunnels with geologically weak broken and expansive surrounding rocks,the deformation of surrounding rocks and cracking of primary branches are common construction problems.The development of economic and reasonable disposal measures as well as the safe and rapid passage are the key to construction.Based on the actual situation of the construction tunnel,this article has formulated reasonable construction control technology,which can provide a certain reference for the construction of similar projects in the future.

关 键 词：大跨度 软弱 膨胀 施工控制技术 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]