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隧道建设(中英文) ›› 2025, Vol. 45 ›› Issue (S2): 280-288.DOI: 10.3973/j.issn.2096-4498.2025.S2.025

• 规划与设计 • 上一篇    下一篇

济滨高铁隧道与机场共构段设计方案

刘小刚1, 2, 宋艺1, 2, *, 郭砚海3, 姚希磊3   

  1. (1. 中铁第一勘察设计院集团有限公司, 陕西 西安 710043; 2. 陕西省铁道及地下交通工程重点实验室(中铁一院), 陕西 西安 710043; 3. 山东济滨高速铁路有限公司, 山东 济南 250014)
  • 出版日期:2025-12-20 发布日期:2025-12-20
  • 作者简介:刘小刚(1974—),男,甘肃天水人,1998年毕业于西南交通大学,地下结构与隧道工程专业,本科,正高级工程师,现从事地下和隧道工程设计与研究工作。 E-mail: tsxgliu@163.com。 *通信作者: 宋艺, E-mail: 281077865@qq.com。

Design of Common Structure Section Between Jinan-Binzhou High-Speed Railway Tunnel and Airport

LIU Xiaogang1, 2, SONG Yi1, 2, *, GUO Yanhai3, YAO Xilei3   

  1. (1. China Railway First Survey and Design Institute Group Co., Ltd., Xi′an 710043, Shaanxi, China; 2. Shaanxi Railway and Underground Traffic Engineering Key Laboratory (FSDI), Xi′an 710043, Shaanxi, China; 3. Shandong Jibin High-Speed Railway Co., Ltd., Jinan 250014, Shandong, China)
  • Online:2025-12-20 Published:2025-12-20

摘要: 为解决高铁明挖隧道与机场综合交通换乘中心(简称GTC)、航站楼共构的设计难题,依托津潍高铁济南联络线(简称济滨高铁)机场2号隧道下穿GTC、遥墙机场T2航站楼工程,针对紧邻运营机场、直接承受上部超大荷载、隧道结构形式多变、地下水位高、地基承载力低等特点,通过调研、对比分析、数值模拟、现场实测等方法,对机场2号隧道与GTC、航站楼共构段的设计方案进行研究。结果表明: 1)分区分段采用混凝土桁架撑+对撑+钢支撑+钢支撑伺服系统的联合支护方式可有效控制“喇叭口”形状的深大基坑变形,并提高基坑开挖效率; 2)采用上部结构设置转换梁的方案,有利于隧道结构受力,便于荷载传递,从而可以减小隧道结构尺寸,节约工程投资; 3)多箱直墙平顶圆拱的隧道结构,可解决上部直接承受超大荷载的大跨隧道结构设计难题; 4)隧道底部采用长短桩均匀布置的方案,能有效控制隧道结构的沉降变形。

关键词: 高铁隧道机场, 共构体系, 结构设计, 基坑支护, 沉降控制

Abstract: The common structure section between high-speed railway tunnel and airport poses great challenge to design work. The Airport No. 2 tunnel on the Jinan-Binzhou high-speed railway crosses underneath the ground traffic center (GTC) and Terminal 2 of Yaoqiang airport in Jinan, China, and faces various challenges, such as close to the airport, excessive upper loads, varying tunnel structures, high underground water level, and low foundation bearing capacity. Through data investigation, comparative analysis, numerical simulation, and on-site measurement, the design scheme of the co-constructed section of Airport No. 2 tunnel, GTC, and Terminal 2 is studied. The findings include: (1) The combined support method of using concrete trusses, diagonal bracing, steel supports, and steel support servo systems in a zoned and segmented approach effectively controls the deformation of the "horn-shaped" deep foundation pit and enhance the efficiency of pit excavation. (2) The scheme of using transfer beams in the upper structure facilitates the stress distribution of the tunnel structure and load transmission, thus reducing the size of the tunnel structure and save engineering investment. (3) The circular arch structure with multiple boxes straight wall flat top bears super large loads. (4) The scheme of uniformly arranging long and short piles at the bottom of the tunnel effectively controls the settlement and deformation of the tunnel structure.

Key words: high-speed railway tunnel airport, common structure system, structural design, foundation pit support, settlement control