隧道软弱破碎岩层辅助支护超前小导管施工  

Advance Ductule Construction in Auxiliary Support of Tunnel Weak Crushed Rock Strata

作　　者：陈浩歌 Chen Hao-ge(China Gezhouba Group Road and Bridge Co.,Ltd.,Yichang 443000,Hubei Province,China)

机构地区：[1]中国葛洲坝集团路桥工程有限公司,湖北宜昌443000

出　　处：《建筑与装饰》2024年第13期160-162,共3页Construction & Decoration

摘　　要：为保证隧道软弱破碎岩层在浅埋暗挖施工过程中的稳定性,不产生流沙或者塌方现象,需要在开挖之前提前对被开挖的土体做好超前加固或者常用支护等保护措施。本文分析超前小导管注浆施工在隧道软弱破碎岩层辅助支护工程中的操作要点和关键技术,根据以往施工经验,总结不足之处,并提出整改意见,以保证可以最大限度发挥出该项施工工艺对隧道工程的建设作用,为隧道工程创造出更好的社会效益和经济效益。In order to ensure the stability of the weak and crushed rock strata of the tunnel in the process of shallow burying and subsurface excavation,and avoid quicksand or landslides,it is necessary to take protective measures such as advanced reinforcement or common support for the soil mass before excavation.This paper analyzes the operation points and key technologies of advanced ductule grouting construction in the auxiliary support project of weak and crushed rock strata of tunnels,summarizes the deficiencies according to the previous construction experience,and puts forward rectification suggestions to ensure that the construction technology can maximize the construction effect of the tunnel project and create better social and economic benefits for tunnel engineering.

关 键 词：隧道工程 软弱破碎岩层 超前小导管注浆 辅助支护 施工 

分 类 号：U45[建筑科学—桥梁与隧道工程]