城市轨道交通预埋滑槽盾构区间施工误差容许值研究

doi:10.3973/j.issn.2096-4498.2026.S1.036

隧道建设（中英文） ›› 2026, Vol. 46 ›› Issue (S1): 415-423.DOI: 10.3973/j.issn.2096-4498.2026.S1.036

城市轨道交通预埋滑槽盾构区间施工误差容许值研究

梁创佳，任祥，张世涛，丘钢沅

（广州地铁设计研究院股份有限公司，广东广州 510000）

出版日期:2026-06-30 发布日期:2026-06-30
作者简介:梁创佳（1980—），男，广东梅州人，2009年毕业于广东工业大学，建筑学专业，本科，高级工程师，现从事轨道交通规划、线路设计工作。 E-mail： 1362956@qq.com。

Allowable Construction Tolerances of Shield Tunnel Sections With Embedded Anchor Channels in Urban Rail Transit

LIANG Chuangjia, REN Xiang, ZHANG Shitao, QIU Gangyuan

(Guangzhou Metro Design & Research Institute Co., Ltd., Guangzhou 510000, Guangdong, China)

Online:2026-06-30 Published:2026-06-30

摘要/Abstract

摘要： 城市轨道交通盾构区间预埋滑槽采用预埋套筒加外挂槽道分步施工工艺，施工约束条件相较传统工艺更为严苛，偏差超标易引发槽道适配不良、机电设备安装错位等质量问题。为明确该工艺合理的施工误差控制标准，解决高精度施工管控难题，保障后期支架及设备安装质量，以广州市轨道交通12号线为工程实例，针对盾构区间预埋滑槽施工精度开展系统研究。结合区间结构参数、套筒布设特点及设备安装工况，梳理滑槽施工核心设计控制要素，采用极限概率法对T形螺栓与槽道适配性能进行计算，分析不同工况下各专业支架的安装适配条件，界定施工误差容许范围，并提出针对性施工优化措施。主要结论如下： 1）预埋套筒外挂槽道工艺精度要求远高于传统工艺，施工误差容许阈值更小，土建施工管控标准更为严格； 2）盾构区间土建施工需将轴线高程误差严格控制在±50 mm以内，可有效避免槽道安装、螺栓匹配失效问题； 3）管片旋转偏差需管控在±1°范围内，保证滑槽整体线形平顺，满足后续机电设备标准化安装要求。

关键词: 城市轨道交通, 预埋滑槽, 施工误差容许值, 盾构区间

Abstract: The two-stage construction technology of pre-embedded sleeves and externally mounted channels adopted in shield tunnel sections of urban rail transit impose stricter construction constraints than traditional processes. Excessive construction deviations are prone to quality issues such as poor channel fitting and misaligned installation of electromechanical equipment. To determine the reasonable construction error control criteria of this technology, address the challenges in high-precision construction management, and ensure the installation quality of subsequent supports and equipment, this paper takes Guangzhou Metro Line 12 as the engineering background to carry out a systematic study on the construction accuracy of embedded channels in shield sections. Combined with the tunnel structural parameters, sleeve layout characteristics, and equipment installation conditions, the core design control factors of channel construction are sorted out. The limit probability method is adopted to calculate the fitting performance between T-bolts and channels, the installation adaptability of supports for various disciplines under different working conditions is analyzed, the allowable range of construction errors is defined, and targeted construction optimization measures are proposed. The main conclusions are drawn as follows: (1) The pre-embedded sleeve with externally mounted channel technology requires far higher construction precision than traditional processes, with narrower allowable construction error thresholds and stricter civil construction control standards. (2) The axis elevation error of shield tunnel alignment shall be strictly controlled within ±50 mm, which can effectively avoid channel installation defects and bolt matching failures. (3) The segment rotation deviation shall be controlled within ±1° to ensure the overall alignment smoothness of the channels and meet the standardized installation requirements of subsequent electromechanical equipment.

Key words: urban rail transit, embedded anchor channels, allowable construction tolerances, shield tunnel sections

梁创佳, 任祥, 张世涛, 丘钢沅. 城市轨道交通预埋滑槽盾构区间施工误差容许值研究[J]. 隧道建设, 2026, 46(S1): 415-423.

LIANG Chuangjia, REN Xiang, ZHANG Shitao, QIU Gangyuan. Allowable Construction Tolerances of Shield Tunnel Sections With Embedded Anchor Channels in Urban Rail Transit[J]. Tunnel Construction, 2026, 46(S1): 415-423.

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城市轨道交通预埋滑槽盾构区间施工误差容许值研究

Allowable Construction Tolerances of Shield Tunnel Sections With Embedded Anchor Channels in Urban Rail Transit

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