玻璃纤维锚杆在挤压破裂带隧道施工中的应用玻璃纤维锚杆在挤压破裂带隧道施工中的应用 摘要：本文以杉阳隧道出口平导挤压破裂带施工为背景，针对掌子面易挤出变形的特别地质特点的防治，结合现场施工方法，通过玻璃纤维锚杆加固超前核心土后采纳全断面开挖作业能够有效避开开挖后掌子面失稳造成的塌方及突泥等灾害发生，同时能够有效提高施工效率；说明玻璃纤维锚杆对于层间挤压破裂带中的隧道施工具有较好的适应性。 关键词：玻璃纤维锚杆；断层破裂带；隧道施工；应用 The application of glass fiber bolt for the construction of tunnel in compresso-crushedzone LI Feng (The 1st Engineering Co.,Ltd Of The 23rd Bureaugroup China Railway , Rizhao 276826 ) Abstract：This paper taking the construction for compresso-crushedzone of Shanyang tunnel as the background, aim at the extrusion deformation of special geological characteristics of the headings, combined with the construction method, the full-face excavation instability caused by landslides and mud outburst disasters can be effectively avoided through reinforcement by the glass fiber bolt, also can effectively improve the the efficiency of construction; That glass fiber bolt use for the construction of tunnel in compresso-crushedzone has good adaptability. Key words: glass fiber bolt；compresso-crushedzone；tunnel construction；application 中图分类号：U455 文献标识码： A 文章编号： 1 引言 近年来，随着国家生产力和科技的不断进步，越岭长大隧道项目逐步增多，隧道往往跨越多个断层等不良地质，其层间挤压破裂带内围岩受地质运动影响极其破裂，且多富水，此类围岩隧道开挖后掌子面易失稳，进而发生垮塌甚至突出涌泥等灾害，一般处理方式往往采纳超前管棚进行注浆加固后分部进行开挖，功效低，进度慢，成本高。对此，国内外专家不断探究新的施工方法，其中采纳玻璃纤维锚杆加固隧道超前核心土的方法有着成本低，工效快等优点，在软弱不良地质中有着很好的应用前景。 杉阳隧道出口端平导在通过层间挤压破裂带时，采纳超前管棚注浆、分部开挖的方式时发生了多次掌子面失稳突泥等灾害，而...
