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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

期数:

2026年02期

页码:

141-152

栏目:

桥隧工程

出版日期:

2026-03-30

文章信息/Info

Title:

Study on experiment and numerical simulation of capsule grouting in control of tunnel deformation

文章编号:

1673-2049(2026)02-0141-12

作者:

谢典延¹,苏栋^1,2,3,邓俊荣¹,郑镇跡¹

(1. 深圳大学 土木与交通工程学院,广东 深圳 518060; 2. 深圳大学 极端环境岩土和隧道工程智能建养全国重点实验室,广东 深圳 518060; 3. 深圳大学 滨海城市韧性基础设施教育部重点实验室,广东 深圳 518060)

Author(s):

XIE Dianyan¹, SU Dong^1,2,3, DENG Junrong¹, ZHENG Zhenji¹

(1. College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, Guangdong, China; 2. State Key Laboratory of Intelligent Geotechnics and Tunnelling, Shenzhen University, Shenzhen 518060, Guangdong, China; 3. Key Laboratory of Coastal Urban Resilient Infrastructures of Ministry of Education, Shenzhen University, Shenzhen 518060, Guangdong, China)

关键词:

囊式注浆;  隧道变形;  主动控制;  模型试验;  数值模拟;  遮挡效应

Keywords:

capsule grouting;  tunnel deformation;  active control;  model test;  numerical simulation;  shielding effect

分类号:

TU411

DOI:

10.19815/j.jace.2024.09096

文献标志码:

A

摘要:

为研究囊式注浆技术的作用机理及影响因素,设计并进行了系统的囊式注浆模型试验,采用橡胶气球来模拟囊袋,研究了隧道侧向囊袋注浆膨胀对隧道变形的影响。基于模型试验参数采用PLAXIS建立了数值模型,探讨了囊式注浆技术控制隧道变形的作用机理,分析了影响其性能的相关因素。基于模型试验提出了“遮挡效应”这一新概念,并分析了该效应对囊式注浆技术性能的影响。结果表明:囊袋注浆膨胀会引起隧道内力发生改变,从而达到控制隧道变形的目的; 侧向囊袋注浆膨胀引起的变形主要表现为隧道靠近囊袋一侧的拱腰向隧道内弯曲的水平变形以及拱顶隆起的竖向变形,其中水平变形大于竖向变形; 多囊袋同时工作时,“遮挡效应”可以隔离后续囊袋注浆膨胀产生的附加应力,在工程中应合理利用该效应来设计注浆顺序和囊袋的安装位置,以确保更加高效、精确地控制隧道变形; 在注浆量固定的情况下,囊袋布置间距和囊袋长度设置与隧道直径相当,囊袋倾斜度设置为90°时,囊式注浆技术的效率最高。

Abstract:

In order to study the mechanism and influencing factors of capsule grouting technology, a systematic capsule grouting model experiment was designed and conducted. Rubber balloons were used to simulate the capsule, and the influence of lateral capsule grouting expansion on tunnel deformation was studied. A numerical model was established using PLAXIS based on the experimental parameters of the model, and the mechanism of controlling tunnel deformation by capsule grouting technology was explored. The relevant factors affecting its performance were analyzed. A new concept of “shielding effect” was proposed based on model experiments, and its impact on the performance of capsule grouting technology was analyzed. The results show that capsule grouting expansion can cause changes of the internal forces of tunnel, thereby achieving the goal of controlling tunnel deformation. The deformation caused by lateral capsule grouting expansion is mainly manifested as horizontal deformation of the arch waist near the capsule side of the tunnel bending into the tunnel and vertical deformation of the arch crown uplift, with horizontal deformation greater than vertical deformation. When multiple capsules work simultaneously, the “shielding effect” can isolate the additional stress generated by the subsequent capsule grouting expansion. In engineering, this effect should be reasonably utilized to design the grouting sequence and installation position of the capsules to ensure more efficient and accurate control of tunnel deformation. When the grouting volume is fixed, the spacing and length of the capsule arrangement are set to be equivalent to tunnel diameter, and when the capsule inclination is set to 90 °, the efficiency of the capsule grouting technology is the highest.

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相似文献/References:

备注/Memo

备注/Memo:

收稿日期:2024-09-26
基金项目:国家自然科学基金项目(51938008); 深圳市科技计划项目(JCYJ20210324094607020)
通信作者:苏 栋(1978-),男,工学博士,教授,博士生导师,E-mail:sudong@szu.edu.cn。
Author resume: SU Dong(1978-), male, PhD, professor, E-mail: sudong@szu.edu.cn.

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更新日期/Last Update: 2026-04-01