中国安全科学学报 ›› 2025, Vol. 35 ›› Issue (S2): 7-13.doi: 10.16265/j.cnki.issn1003-3033.2025.S2.0003

• 安全工程技术 • 上一篇    下一篇

超长隧道组合工法TBM导洞直径确定方法研究

崔明1(), 邸学军2, 裴宏宇1, 王知远1   

  1. 1 中交一公局集团有限公司 技术中心, 北京 100024
    2 中交一公局第五工程有限公司 项目部, 北京 100024
  • 收稿日期:2025-08-15 出版日期:2026-02-04
  • 作者简介:

    崔 明 (1985—),男,河北唐山人,博士,教授级高级工程师,主要从事隧道施工安全、施工技术及岩石力学等方面的工作。E-mail:

    邸学军 高级工程师

    裴宏宇 高级工程师

    王知远 高级工程师

  • 基金资助:
    云南省重点研发计划(202403AA080022); 新疆维吾尔自治区重大科技专项(2020A03003-5); 中交一公局科技研发项目(2024-A-01)

Research on method for determining diameter of TBM pilot tunnels in ultra-long tunnel combination construction

CUI Ming1(), DI Xuejun2, PEI Hongyu1, WANG Zhiyuan1   

  1. 1 Technology Center, CCCC First Highway Engineering Group Co., Ltd., Beijing 100024, China
    2 Project Department, Fifth Engineering Co., Ltd., China First Highway Engineering Co., Ltd., Beijing 100024, China
  • Received:2025-08-15 Published:2026-02-04

摘要:

为探究TBM导洞直径的影响因素和优化算法,依托G219西天山超长隧道工程,将出渣带式输送机、物料运输车辆及施工通风风管的轮廓边界离散成二维平面上的坐标点,置于导洞圆形断面中,以每2个元素之间的间距限制作为约束条件,采用退火粒子群算法,优化对应的隧道断面圆形直径。优化分析了带式输送机悬挂在隧道顶和安装在隧道侧边2种工况的TBM平行导洞直径,初支后的隧道直径分别为8.34和8.55 m。考虑到Ⅴ级围岩初支为23 cm的C25喷射混凝土,TBM开挖直径初步确定为8.8 m。施作二衬和中隔墙后,运营期导洞送排风面积分别为18.23和21.64 m2,经核算断面满足运营通风的技术指标。考虑到工程偏差和预留量为3 cm,西天山隧道TBM开挖直径最终确定为8.83 m。

关键词: 超长公路隧道, TBM平行导洞, 直径优化, 图形边界离散, 模拟退火粒子群算法, 洞内优化布置

Abstract:

To study the influencing factors and optimization algorithm of the TBM pilot tunnel diameter, this research was based on the G219 Xitianshan ultra-long tunnel project. The contour boundaries of the muck discharge belt conveyor, concrete and muck transport vehicles, and construction ventilation ducts were discretized into coordinate points on a 2D plane, which were then placed in a circular section of the pilot tunnel. Taking spacing constraints between every two elements as constraint conditions, the simulated annealing particle swarm optimization algorithm was adopted to optimize the corresponding circular diameter of the tunnel section. Two working conditions of the TBM pilot tunnel diameter were analyzed for optimization: a belt conveyor suspended from the tunnel roof and a belt conveyor installed on the tunnel side. The tunnel diameters after primary support were 8.34 m and 8.55 m, respectively. Since primary support for Class Ⅴ surrounding rock was C25 shotcrete with a thickness of 23 cm, the initial TBM excavation diameter was determined to be 8.8 m. After the construction of the secondary lining and partition wall, the air supply and exhaust areas of the pilot tunnel during the operation period were 18.23 m2 and 21.64 m2, respectively. After verification, the section meets technical indicators for operational ventilation. By taking into account engineering deviations and a reserved margin of 3 cm, the final TBM excavation diameter of Xitianshan Tunnel was determined to be 8.83 m.

Key words: ultra-long highway tunnel, tunnel boring machine (TBM) pilot tunnel, diameter optimization, graph boundary discretization, simulated annealing particle swarm algorithm, internal layout optimization

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