Analysis of coupling characteristics between the supporting boot auxiliary tooling and surrounding rock of TBM under gradual section condition

MA Xiuquan; MIAO Chong; XIE Miao; WANG Haonan

doi:10.16579/j.issn.1001.9669.2026.07.016

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Analysis of coupling characteristics between the supporting boot auxiliary tooling and surrounding rock of TBM under gradual section condition

·Experimental Research·Testing Technology· | 更新时间：2026-07-17

- Analysis of coupling characteristics between the supporting boot auxiliary tooling and surrounding rock of TBM under gradual section condition
- Journal of Mechanical Strength Vol. 48, Issue 7, Pages: 137-147(2026)
- 作者机构：
  
  辽宁工程技术大学机械工程学院，阜新 123000
- 作者简介：
  
  MIAO Chong, E-mail: 1484224355@qq.com
- 基金信息：
  
  National Natural Science Foundation of China(51874158);Key Tackling Project of Liaoning Provincial Department of Education(LJ2019ZL003)
- DOI：10.16579/j.issn.1001.9669.2026.07.016
  CLC： TU455;TV672.1
- Received：05 November 2024，
  
  Revised：2024-11-22，
  
  Online First：17 July 2026，
  
  Published：15 July 2026
- 稿件说明：
移动端阅览
马修泉，苗茺，谢苗，等. 渐变断面工况下TBM撑靴辅助工装与围岩耦合特性分析［J］. 机械强度，2026，48（7）：137-147.

Ma Xiuquan，Miao Chong，Xie Miao，et al. Analysis of coupling characteristics between the supporting boot auxiliary tooling and surrounding rock of TBM under gradual section condition［J］. Journal of Mechanical Strength，2026，48（7）：137-147.
马修泉，苗茺，谢苗，等. 渐变断面工况下TBM撑靴辅助工装与围岩耦合特性分析［J］. 机械强度，2026，48（7）：137-147. DOI： 10.16579/j.issn.1001.9669.2026.07.016.

Ma Xiuquan，Miao Chong，Xie Miao，et al. Analysis of coupling characteristics between the supporting boot auxiliary tooling and surrounding rock of TBM under gradual section condition［J］. Journal of Mechanical Strength，2026，48（7）：137-147. DOI： 10.16579/j.issn.1001.9669.2026.07.016.

摘要

目的

针对渐变断面新工况下辅助支撑装备的研究较少，现有隧道掘进机（Tunnel Boring Machine

TBM）支撑推进机构均无法满足新工况下的工作需求等问题，对撑靴辅助装备与围岩间的接触力学行为进行分析，得到接触区域的综合应力与综合位移等力学参数，以便于对工装稳定性与TBM整机掘进效率进行评估，为工程装备设计提供依据。

方法

首先，基于浙江缙云抽蓄电站排水廊道渐变断面施工工况，建立撑靴辅助工装在不同支撑状态下与围岩的耦合接触模型。然后，探究工装伸长量、工装靴体与围岩间的贴合角度、工装靴体与围岩表面的接触面积、不同岩石类型对耦合力学特性的影响。最后，绘制辅助工装靴体与围岩接触面的综合应力、法向接触应力和综合位移分布图，对不同支撑状态和工况下撑靴辅助工装靴体与围岩的接触耦合力学特性进行对比分析。

结果

结果表明，撑靴辅助工装靴体与围岩完全接触时，综合应力和法向接触应力分布不均，且有较大突变；随贴合角的增大，两表面间的最大综合位移增大；靴体与围岩仅中间区域接触时，综合应力、法向接触应力和围岩的最大综合位移均大于完全接触时的相应值；当耦合接触参数相同时，Ⅰ类围岩所受的综合应力的最大值大于Ⅱ、Ⅲ类围岩，综合位移的最大值小于Ⅱ、Ⅲ类围岩，Ⅱ、Ⅲ类围岩所受综合应力和综合位移的主要集中区域大于Ⅰ类围岩，表明软质岩更易发生屈服破坏和滑移变形。

Abstract

Objective

Aiming at the problems including insufficient research on auxiliary supporting equipment under the new working condition of variable cross-section

and the failure of existing tunnel boring machine (TBM) supporting and propelling mechanisms to meet the operational requirements of such new conditions

the contact mechanical behavior between shoe auxiliary equipment and surrounding rock was analyzed

and the mechanical parameters such as comprehensive stress and comprehensive displacement of the contact zone were obtained to evaluate the stability of tooling and the overall tunneling efficiency of TBM

providing a reference for the design of engineering equipment.

Methods

Firstly

coupled contact models between shoe auxiliary tooling and surrounding rock under various supporting states were established based on the construction condition of the drainage gallery with variable cross-section at the Jinyun pumped storage power station in Zhejiang province. Secondly

the influences of tooling elongation

fitting angle between tooling shoe body and surrounding rock

contact area between tooling shoe body and surrounding rock surface

and different rock types on coupled mechanical characteristics were investigated. Finally

distribution diagrams of comprehensive stress

normal contact stress and comprehensive displacement on the contact surface between auxiliary tooling shoe body and surrounding rock were plotted

and a comparative analysis of contact-coupled mechanical characteristics between shoe auxiliary tooling shoe body and surrounding rock under different supporting states and working conditions was carried out.

Results

The results show that the distributions of comprehensive stress and normal contact stress are uneven with obvious abrupt changes when the tooling shoe body is in full contact with surrounding rock. The maximum comprehensive displacement between the two surfaces rises with the increase of the fitting angle. When the shoe body only contacts surrounding rock at the middle region

the corresponding values of comprehensive stress

normal contact stress and maximum comprehensive displacement of surrounding rock are all larger than those under full contact. With identical coupled contact parameters

the maximum comprehensive stress borne by type Ⅰ surrounding rock is higher than that of type Ⅱ and type Ⅲ surrounding rock

while its maximum comprehensive displacement is lower. The main concentration zones of comprehensive stress and comprehensive displacement of type Ⅱ and type Ⅲ surrounding rock are wider than those of type Ⅰ surrounding rock

which indicates that soft rock is more prone to yield failure and sliding deformation.

关键词

Keywords

references

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