分离式特长小净距偏压隧道重难点控制下施工技术研究  

Research on Construction Technology of Separated Long, Small, Clear Distance and Biased Pressure Tunnels under the Control of Key and Difficult Points

作　　者：赵可 ZHAO Ke(Sichuan Highway and Bridge Construction Group Co.,Ltd.Mechanized Construction Branch,Chengdu 610200,China)

机构地区：[1]四川公路桥梁建设集团有限公司机械化施工分公司,成都610200

出　　处：《价值工程》2024年第22期61-63,共3页Value Engineering

摘　　要：高速公路特长隧道作为一段高速的控制性工程,其设计施工一直都是受到多方的关注。尤其对于洞口偏压、小净距的特长隧道,其在开挖过程中的控制变量多,开挖难度大,设计变更复杂等原因,需要在施工前期对其施工技术进行逐一分析和研究,以保障后续其施工安全以及施工质量。本文以四川某高速公路的特长隧道施工为例,对其重难点进行阐述后,提出相应的应对措施,并对其在施工过程中的开挖技术进行分析研究。The design and construction of super long tunnels on highways have always received attention from various parties because they are the controlling project of a section of highway.Especially for extra long tunnels with biased opening and small clearance distance,there are many control variables,high excavation difficulty,and complex design changes during the excavation process.Therefore,it is necessary to analyze and study the construction technology one by one in the early stage of construction to ensure the safety and quality of subsequent construction.This article takes the construction of a special tunnel on a highway in Sichuan as an example,elaborates on its key and difficult points,proposes corresponding countermeasures,and analyzes and studies the excavation technology during the construction process.

关 键 词：分离式隧道 小净距 偏压 施工技术 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]