钟凡伟, 贾鹏蛟, 关振长,等.管幕结构支护下箱涵顶进引起的地表沉降计算方法[J].河南理工大学学报（自然科学版）,2026,45(4):39-48.

ZHONG F W, JIA P J, GUAN Z C,et al.Ground settlement calculation method for pipe-roof-supported box culvert jacking[J].Journal of Henan Polytechnic University(Natural Science) ,2026,45(4):39-48.

管幕结构支护下箱涵顶进引起的地表沉降计算方法

钟凡伟1, 贾鹏蛟1, 关振长2, 陈彬彬1, 王宁1, 路博3

1.苏州大学 轨道交通学院，江苏 苏州  215137;2.福州大学 土木工程学院，福建 福州 350108;3.东北大学 资源与土木工程学院，辽宁 沈阳 110819

摘要: 目的 管幕-箱涵法因变形控制能力强、环境影响小等优势，已应用于高风险源地区地下工程施工，但顶进过程中管幕结构变形引起的地表沉降研究不足，设计多依靠工程经验，缺少理论指导，开展了管幕-箱涵顶进施工中管幕结构变形引发的地表沉降规律研究。  方法依托某火车站换乘通道工程，构建考虑子母扣连接效应的三维有限元模型，系统分析箱涵顶进过程中管幕-土体的协同变形特征。基于管幕受力特性和管幕-土体协同变形机制，将管幕结构等效为弹性地基薄板的地表沉降，并引入二维土体位移场理论，建立综合考虑管幕变形与土体协同变形的地表沉降预测模型，同时通过数值模拟和实测数据进行验证。  结果 结果表明：（1）具备子母扣的管幕结构在纵横向上受力与变形模式更接近弹性薄板；（2）基于箱涵顶进下管幕结构的变形量，得到管幕-箱涵断面的收缩率，引入二维位移场理论，提出管幕支护下箱涵顶进引起的地表沉降计算方法；（3）提出的理论方法计算的最大地表沉降值与数值模拟误差约为7%，与实测结果相比，横向和纵向的最大误差分别约为16%和13%，沉降槽形态在横向与纵向上均与数值模拟和实测结果保持一致。  结论建立的地表沉降计算方法能够较好反映管幕支护下箱涵顶进过程中地表沉降的变化规律，可为类似工程的沉降分析和计算提供参考。

关键词:管幕箱涵法;管幕变形;地表沉降;计算方法;数值模拟

doi:10.16186/j.cnki.1673-9787.2025120058

基金项目:国家自然科学基金资助项目（52508436）；辽宁省博士科研启动基金资助项目（2025-BS-0105）

收稿日期:2025/12/19

修回日期:2026/04/15

出版日期:2026/06/17

Ground settlement calculation method for pipe-roof-supported box culvert jacking

Zhong Fanwei1, Jia Pengjiao1, Guan Zhenchang2, Chen Binbin1, Wang Ning1, Lu Bo3

1.School of Rail Transportation， Soochow University， Suzhou  215137， Jiangsu， China;2.College of Civil Engineering， Fuzhou University， Fuzhou  350108， Fujian， China;3.School of Resources and Civil Engineering，  Northeast University， Shenyang  110819， Liaoning， China

Abstract: Objectives The pipe-roof box culvert jacking method has been widely applied in underground construction in risk-sensitive areas owing to its strong deformation-control capability and limited environmental impact. However， research on ground settlement induced by deformation of the pipe-roof structure during the jacking process remains insufficient， and current design practice still relies heavily on engineering experience， lacking systematic theoretical guidance. Therefore， this study investigates the characteristics of ground settlement induced by pipe-roof deformation during pipe-roof-supported box culvert jacking. Methods Based on a transfer-passage project at a railway station， a three-dimensional finite-element model considering the interlocking effect of male-female joints was established to systematically analyze the coupled deformation behavior of the pipe-roof structure and surrounding soil during box culvert jacking. According to the mechanical characteristics of the pipe-roof structure and the coupled deformation mechanism between the pipe-roof and soil， the pipe-roof structure was simplified as an elastic thin plate on an elastic foundation. Combined with the two-dimensional soil displacement field theory， a ground-settlement prediction model considering both pipe-roof deformation and soil–structure interaction was developed. The proposed model was further validated through numerical simulations and field measurements. Results The results indicate that： （1） the pipe-roof structure with male–female interlocking joints exhibits deformation and mechanical behaviors closer to those of an elastic thin plate in both transverse and longitudinal directions； （2） based on the deformation characteristics of the pipe-roof structure during box culvert jacking，  the contraction ratio of the pipe-roof-box culvert section was obtained， and a ground-settlement calculation method for pipe-roof-supported box culvert jacking was proposed by incorporating the two-dimensional displacement field theory； and （3） the maximum ground settlement predicted by the proposed method differed from the numerical simulation results by approximately 7%， while the maximum errors in the transverse and longitudinal directions compared with field measurements were approximately 16% and 13%， respectively. In addition， the transverse and longitudinal settlement trough profiles agreed well with both the numerical simulation and field measurement results. Conclusions The proposed ground-settlement calculation method can effectively characterize the evolution of ground settlement during box culvert jacking under pipe-roof support and can provide a useful reference for settlement analysis and prediction in similar underground engineering projects.

Key words:pipe-roof box culvert jacking method;pipe-roof deformation;ground settlement;calculation method;numerical simulation