• CSCD核心中文核心科技核心
  • RCCSE(A+)公路运输高质量期刊T1
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隧道建设(中英文) ›› 2025, Vol. 45 ›› Issue (S1): 182-192.DOI: 10.3973/j.issn.2096-4498.2025.S1.019

• 规划与设计 • 上一篇    下一篇

公路隧道竖井波纹钢支护设计——鹦哥岭隧道实例分析

曹校勇1 2, 张梦涵1, 奚魏征2, 徐平2, 叶飞1, 韩兴博1 *   

  1. 1. 长安大学公路学院, 陕西 西安 710064 2. 中交第一公路勘察设计研究院有限公司隧道与地下工程设计研究院, 陕西 西安 710075
  • 出版日期:2025-07-15 发布日期:2025-07-15
  • 作者简介:曹校勇(1976—),男,河南许昌人,2000年毕业于长安大学,隧道结构设计专业,在读博士,正高级工程师,现从事隧道结构设计研究工作。E-mail: rfsjy03@vip.163.com。*通信作者: 韩兴博, E-mail: xingbo.han@chd.edu.cn。

Corrugated Steel Support Design for Highway Tunnel Shafts: A Case Study of Yinggeling Tunnel

CAO Xiaoyong1, 2, ZHANG Menghan1, XI Weizheng2, XU Ping2, YE Fei1, HAN Xingbo1, *   

  1. (1. School of Highway, Chang′an University, Xian 710064, Shaanxi, China; 2. Tunneling and Underground Engineering Design Institute of CCCC First Highway Consultants Co., Ltd., Xian 710075, Shaanxi, China)
  • Online:2025-07-15 Published:2025-07-15

摘要: 为研究采用波纹钢新型结构进行公路隧道竖井支护设计的技术与经济可行性,首先,探讨波纹钢在隧道初期支护、加固衬砌、保温套衬以及作为通风导洞中隔墙的应用特点,明确其在隧道竖井支护中的应用可能性。然后,基于鹦哥岭隧道的工程地质条件,通过理论计算与数值模拟相结合的方法对钢波纹管结构进行力学性能验证。基于结构承载力理论开展手算校核,重点分析混凝土轴心抗压强度和土压力合力;依据荷载-结构模型原理,使用ABAQUS有限元构建考虑土体-结构相互作用的钢波纹管三维数值模型,分析模拟实际工况下的力学响应,提出基于波纹钢的竖井支护设计方案。最后,详细阐述波纹钢竖井支护的施工工艺,并对比传统设计方案,进行成本效益分析。研究结果表明: 1)波纹钢应用于隧道竖井支护具有良好的技术可行性,其构件在地层结构中安全可靠; 2)波纹钢支护造价虽比传统方案增加10%,但显著提高了结构强度和承载能力,增强了变形适应性; 3)波纹钢支护有效封堵了围岩涌水,缩短了施工周期,施工效能提升显著,具有综合经济优势。

关键词: 公路隧道, 竖井, 波纹钢支护, 支护结构, 承载力验算

Abstract: Herein, the technical and economic feasibility of corrugated steel support structure for highway tunnel shafts are examined. First, the application characteristics of corrugated steel in the primary support of tunnel, reinforcement lining, thermal insulation lining, and partition wall of ventilation guide tunnel are discussed, clarifying the application possibility of corrugated steel in the support of tunnel shafts. Then, based on the engineering geological conditions of the Yinggeling tunnel, the mechanical properties of corrugated steel structure are verified using theoretical calculations and numerical simulations. Based on the theory of structural bearing capacity, the manual calculation is conducted, and the axial compressive strength of concrete and the resultant force of earth pressure are analyzed. Additionally, based on the principle of load-structure model, ABAQUS finite element is employed to construct a three-dimensional numerical model of corrugated steel considering soil-structure interaction. Subsequently, the mechanical response under actual working conditions is analyzed and simulated, thus proposing a design scheme of support of shaft using corrugated steel. Finally, the construction technology of support using corrugated steel is described in detail, and the cost-benefit of this approach is compared with the traditional design scheme. The research results show the following: (1) The corrugated steels are technically feasible in primary support of tunnel shaft, exhibiting safe and stable state in stratum. (2) Although the cost of the corrugated steel support is 10% higher than traditional scheme, but the structural strength,  bearing capacity, and deformation adaptability are much higher. (3) The corrugated steels effectively seal surrounding rock water gushing, shorten construction period, and improve construction efficiency, exhibiting good comprehensive economic benefits.

Key words: highway tunnel, shaft, corrugated steel support, supporting structure, bearing capacity checking