A Computational and Analytical Method for Pipe Jacking‑soil‑box Culvert Interaction Based on Cavity Expansion Theory

DUAN Kun; MO Pinqiang; HU Jing; LIU Qingnan; ZHAO Ning

doi:10.13409/j.cnki.jdpme.20240806003

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A Computational and Analytical Method for Pipe Jacking‑soil‑box Culvert Interaction Based on Cavity Expansion Theory

更新时间：2025-08-27

- A Computational and Analytical Method for Pipe Jacking‑soil‑box Culvert Interaction Based on Cavity Expansion Theory
- Journal of Disaster Prevention and Mitigation Engineering Vol. 45, Issue 4, Pages: 765-775(2025)
- 作者机构：
  
  1.中国矿业大学力学与土木工程学院，江苏徐州 221116
  2.中国矿业大学深地工程智能建造与健康运维全国重点实验室，江苏徐州 221116
- 作者简介：
- 基金信息：
- DOI：10.13409/j.cnki.jdpme.20240806003
  CLC： TU43
- Received：06 August 2024，
  
  Revised：2024-09-18，
  
  Published：28 August 2025
- 稿件说明：
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段焜,莫品强,胡静等.基于小孔扩张理论的顶管‑土‑箱涵相互作用的计算分析方法[J].防灾减灾工程学报,2025,45(04):765-775.

DUAN Kun,MO Pinqiang,HU Jing,et al.A Computational and Analytical Method for Pipe Jacking‑soil‑box Culvert Interaction Based on Cavity Expansion Theory[J].Journal of Disaster Prevention and Mitigation Engineering,2025,45(04):765-775.
段焜,莫品强,胡静等.基于小孔扩张理论的顶管‑土‑箱涵相互作用的计算分析方法[J].防灾减灾工程学报,2025,45(04):765-775. DOI： 10.13409/j.cnki.jdpme.20240806003.

DUAN Kun,MO Pinqiang,HU Jing,et al.A Computational and Analytical Method for Pipe Jacking‑soil‑box Culvert Interaction Based on Cavity Expansion Theory[J].Journal of Disaster Prevention and Mitigation Engineering,2025,45(04):765-775. DOI： 10.13409/j.cnki.jdpme.20240806003.

摘要

以上海某顶管工程为例，基于孔扩张理论解析解，建立了顶管‑土‑箱涵相互作用的计算分析模型，研究了开挖位置、开挖深度和掌子面支撑力对地层和箱涵的应力和变形的影响。结果表明：顶管顶进过程对土体的扰动主要在顶管轴线附近，地表位移和既有箱涵的竖向位移、应力沿顶管轴线左右对称；地表位移随掌子面支撑力和顶管埋深的增加而减小，其中竖向位移呈“V”型，水平位移呈顶管轴线对称；箱涵位移变化与地层相似，随顶管埋深增加，箱涵最大应力降低，而箱涵应力随掌子面支撑力的增加呈现先降低后升高的变化规律。对比实测数据与计算结果表明：该计算分析模型可靠性较好，可为相关工程提供参考。

Abstract

Using a pipe jacking project in Shanghai as a case study

this study established a computational and analytical model for the interaction among pipe jacking

soil

and box culvert based on the analytical solution of the cavity expansion theory. The impact of excavation location

excavation depth

and face support pressure on the stress and deformation of the surrounding soil and box culvert was investigated. The results showed that the soil disturbance caused by the pipe jacking process was primarily concentrated near the pipe axis

with surface displacement

as well as vertical displacement and stress of the existing box culvert

showing symmetrical distribution along the pipe axis. Surface displacement decreased with increasing face support pressure and jacking depth. The vertical displacement exhibited a "V"-shaped pattern

while the horizontal displacement was symmetrical along the pipe axis. The displacement variation of the box culvert was similar to that of the soil. As the pipe jacking depth increased

the maximum stress of the box culvert decreased. However

the box culvert stress showed a trend of first decreasing and then increasing with rising face support pressure. A comparison between measured data and calculated results showed that the proposed calculation model had good reliability and could provide a reference for related engineering projects.

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