深汕西高速超大跨隧道机械化设计与施工技术  

Mechanized Design and Construction Technology of Shenzhen-Shantou West Expressway Super-large Span Tunnel

作　　者：左小伟 ZUO Xiaowei(China Railway 11th Bureau Group No.4 Engineering Co.,Ltd.,Wuhan,Hubei 430073,China)

机构地区：[1]中铁十一局集团第四工程有限公司,湖北武汉430073

出　　处：《施工技术(中英文)》2025年第7期163-168,共6页Construction Technology

基　　金：湖北省技术创新专项(2022BEC02)。

摘　　要：为保证超大跨隧道施工的安全性,提升隧道施工效率,采用资料调研、工程类比、理论分析、数值模拟等方法,基于双洞八车道的城仔山超大跨隧道工程实例,依据隧道开挖断面、机械化施工工艺的特点和需求,以安全、高效作为评价基准,对超大跨隧道的施工工法、大型施工装备选型及支护参数等方面进行研究,提出了基于洞周岩性分布的超大跨隧道机械化施工工法设计体系,并通过实际工程的数值模拟分析验证了该设计体系的场景适用性及可行性。结果表明,施工造成的应力、应变均在可接受范围内,该设计体系合理,具有推广价值。To ensure the safety of super-large span tunnel construction and improve the efficiency of tunnel construction,data research,engineering analogy,theoretical analysis,numerical simulation,and other methods are used to study the construction method,large-scale construction equipment selection,and support parameters of super-large span tunnels based on the engineering example of Chengzishan super-large span tunnel with two tunnels and eight lanes.According to the characteristics and requirements of tunnel excavation sections and mechanized construction technology,the construction method,large-scale construction equipment selection,and support parameters of super-large span tunnels were studied,with safety and efficiency as the evaluation benchmark.The design system of the mechanized construction method for super-large span tunnels based on the lithology distribution around the tunnel was proposed,and both the applicability and feasibility of the design system were verified by numerical simulation analysis of the actual projects.The results indicate that the stress and strain caused by construction are within the acceptable range,and the design system is reasonable and has the value of popularization.

关 键 词：隧道 支护 机械化 数值模拟 设计 施工 

分 类 号：U459[建筑科学—桥梁与隧道工程]