地铁盾构UHPC-RC管片接头抗弯性能足尺试验与分析

doi:10.3973/j.issn.2096-4498.2026.02.005

隧道建设（中英文） ›› 2026, Vol. 46 ›› Issue (2): 287-300.DOI: 10.3973/j.issn.2096-4498.2026.02.005

地铁盾构UHPC-RC管片接头抗弯性能足尺试验与分析

雷正辉¹, 李永骝¹, 刘金燕², 吕朋³, 闫虹伏⁴, 滕克勤⁵, 吴香国^{5, 6, *}, 陆灵威⁷

(1. 广州地铁建设管理有限公司，广东广州 510330； 2. 中国建设基础设施有限公司，北京 100161；3. 中国建筑一局（集团）有限公司，北京 100161； 4. 广东华隧建设集团股份有限公司，广东广州 510308；5. 福州大学土木工程学院，福建福州 350108； 6. 哈尔滨工业大学结构工程灾变与控制教育部重点实验室/土木工程智能防灾减灾工业和信息化部重点实验室，黑龙江哈尔滨 150090； 7. 广州地铁设计研究院股份有限公司，广东广州 510010)

出版日期:2026-02-20 发布日期:2026-02-20
作者简介:雷正辉(1979—)，男，湖北公安人，2007年毕业于广东工业大学，岩土工程专业，硕士，高级工程师，现从事轨道交通建设工程管理工作。E-mail: leizhenghui@gzmtr.com。*通信作者：吴香国， E-mail： wuxiangguo@hit.edu.cn。

Full-Scale Tests and Analysis on Flexural Behavior of Ultra-High Performance Concrete and Reinforced Concrete Composite Segment Joints for Metro Shield Tunnels

LEI Zhenghui¹, LI Yongliu¹, LIU Jinyan², LYU Peng³, YAN Hongfu⁴, TENG Keqin⁵, WU Xiangguo^{5, 6, *}, LU Lingwei⁷

(1. Guangzhou Metro Construction & Management Co., Ltd., Guangzhou 510330, Guangdong, China; 2. China Construction Infrastructure Co., Ltd., Beijing 100161, China; 3. China Construction First Group Corporation Limited, Beijing 100161, China; 4. Guangdong Huasui Construction Group Co., Ltd., Guangzhou 510308, Guangdong, China; 5. School of Civil Engineering, Fuzhou University, Fuzhou 350108, Fujian, China; 6. Key Laboratory of Structures Dynamic Behavior and Control of the Ministry of Education/Key Laboratory of Smart Prevention and Mitigation of Civil Engineering Disasters of the Ministry of the Industry and Information Technology, Harbin Institute of Technology, Harbin 150090, Heilongjiang, China; 7. Guangzhou Metro Design & Research Institute Co., Ltd., Guangzhou 510010, Guangdong, China)

Online:2026-02-20 Published:2026-02-20

摘要/Abstract

摘要： 为研究超高性能混凝土与普通混凝土组合管片在地铁联络通道开洞复杂受力条件下接头性能的差异性，对管片接头的力学行为进行系统分析。开展UHPC-RC组合管片纵缝接头足尺受力试验，研究UHPC-RC管片接头在压弯复合作用下的受力性能及其抗弯刚度演化规律；同时开展有限元参数分析，对接头受力响应与破坏形态进行对比研究，建立拼接接头的抗弯刚度验算表达式。结果表明： 1）UHPC-RC接头极限状态呈现受压破坏模式，损伤与裂缝主要集中于RC节段受压区，RC管片受压区呈现压溃并伴随斜向裂缝扩展； 2）UHPC管片节段受压区仅出现细微裂缝，整体保持良好完整性； 3）轴心受压荷载对接头抗弯刚度与极限承载力具有显著提升作用，但增幅随轴力提高逐渐减弱，表现出明确的“强化—饱和”特征，且UHPC节段的饱和阈值水平更高； 4）混凝土强度等级由C50提升至UHC120时，接头抗弯刚度提高约15.5%。基于试验与数值模拟结果提出的UHPC-RC管片接头抗弯刚度简化计算方法可较好地预测接头刚度演化过程，为UHPC-RC组合管片纵缝接头设计与性能评估提供依据。

关键词: 盾构隧道, UHPC-RC管片接头, 抗弯足尺试验, 数值模拟, 抗弯性能, 抗弯刚度理论公式

Abstract: A systematic analysis is conducted to investigate the mechanical behavior of segment joints and to study performance differences between ultra-high performance concrete (UHPC) and reinforced concrete (RC) composite segments under complex stresses, induced by opening for metro connecting passages. Full-scale mechanical tests are carried out on longitudinal joints of UHPC-RC segments to evaluate their mechanical performance and observe flexural stiffness evolution under the combination of compression and bending. Additionally, a finite element parametric analysis is performed to compare the mechanical response and failure modes of the joints, and a simplified formula for checking the flexural stiffness of segment joints is proposed. The results are as follows: (1) At the ultimate state, the UHPC-RC joint exhibits a compression-controlled failure mode, with damage and cracking mainly concentrated in the compression zone of the RC segment, which is crushed as inclined cracks propagate. (2) The compression zone of the UHPC segment remains mostly structurally intact, with the appearance of microcracks. (3) Axial compressive load considerably enhances the flexural stiffness and ultimate bearing capacity of the joint; however, gradually diminishes with increasing axial force, displaying a prominent strengthening-saturation characteristic, along with a higher saturation threshold of the UHPC segment. (4) The flexural stiffness of the joint improves by ~15.5% when the concrete strength grade increases from C50 to UHC120. The simplified method for calculating the flexural stiffness of UHPC-RC segment joints is developed based on the experimental and numerical results, and can effectively predict the evolution of joint stiffness while providing a reliable basis for the design and performance evaluation of longitudinal joints in UHPC-RC composite segments.

Key words: shield tunnel, ultra-high performance concrete and reinforced concrete composite segment joints, full-scale flexural test, numerical simulation, flexural performance, theoretical formula of flexural stiffness

雷正辉, 李永骝, 刘金燕, 吕朋, 闫虹伏, 滕克勤, 吴香国, 陆灵威. 地铁盾构UHPC-RC管片接头抗弯性能足尺试验与分析[J]. 隧道建设, 2026, 46(2): 287-300.

LEI Zhenghui, LI Yongliu, LIU Jinyan, LYU Peng, YAN Hongfu, TENG Keqin, WU Xiangguo, LU Lingwei. Full-Scale Tests and Analysis on Flexural Behavior of Ultra-High Performance Concrete and Reinforced Concrete Composite Segment Joints for Metro Shield Tunnels[J]. Tunnel Construction, 2026, 46(2): 287-300.

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地铁盾构UHPC-RC管片接头抗弯性能足尺试验与分析

Full-Scale Tests and Analysis on Flexural Behavior of Ultra-High Performance Concrete and Reinforced Concrete Composite Segment Joints for Metro Shield Tunnels

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