Nonlinear dynamic analysis and application of thrust force for slurry balance shield

GENG Zhe; LI Shu-chen; ZHAO Shi-sen; ZHANG Jing-yu

doi:10.16285/j.rsm.2018.0424

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Nonlinear dynamic analysis and application of thrust force for slurry balance shield

更新时间：2026-06-25

- Nonlinear dynamic analysis and application of thrust force for slurry balance shield
- Vol. 39, Issue S1, Pages: 469-476(2018)
- 作者机构：
  
  山东大学岩土与结构工程研究中心,山东,济南,250061
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2018.0424
  CLC： U452
- Online First：02 September 2018，
  
  Published：2018
- 稿件说明：
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GENG Zhe, LI Shu-chen, ZHAO Shi-sen, et al. Nonlinear dynamic analysis and application of thrust force for slurry balance shield[J]. 2018, 39(S1): 469-476.
DOI：

GENG Zhe, LI Shu-chen, ZHAO Shi-sen, et al. Nonlinear dynamic analysis and application of thrust force for slurry balance shield[J]. 2018, 39(S1): 469-476. DOI： 10.16285/j.rsm.2018.0424.

摘要

泥水平衡盾构开挖过程中常遇到盾构顶推力难以确定且波动复杂的问题。针对该问题，对盾构推进过程中所受阻力进行系统的分析，确定了阻力的组成部分和计算方法，改进了盾壳与周围土体间摩擦力的计算公式。分析泥水平衡盾构推进系统的组成和工作原理，基于盾构推力的静力学模型建立了单自由度动力学模型，根据能量守恒原理建立了系统的平衡微分方程，推导出盾构推力的非线性动力学公式。基于上述公式，分析了盾构推力的变化趋势和波动规律，确定了液压油缸的最佳行程距离。通过与武汉地铁8号线越江隧道长江穿越段盾构顶进推力的实测数据对比分析，验证了提出公式能够正确计算管片衬砌所受的动态顶推载荷，对衬砌结构内力分析具有重要意义。

Abstract

In the process of slurry balance shield excavation

the thrust force is difficult to determine and the fluctuation is complicated. In light of this problem

the resistance in the process of shield advance is analyzed systematically; and then the component and calculation method of the resistance are determined. The calculation formula of friction between shell and surrounding soil is modified. And the composition and working principle of slurry water balance shield thrust system are analyzed. Basing on the static model of shield thrust

a single degree-of-freedom dynamic model is established. According to the principle of energy conservation

the equilibrium differential equation of the system is established; and then the formula of nonlinear kinetics is derived. Based on the above formula

the change trend and fluctuation of shield thrust are summarized and the optimal distance of hydraulic jack is put forward in the process of propulsion. Through the comparison and analysis of the measured data of the thrust force of the Yangtze section of the tunnel at Wuhan metro line 8. It is proved that the formula can be used to calculate the dynamic thrust load of the lining accurately

which is of great importance to the analysis of the internal force of the lining structure.

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Related Institution

School of Civil Engineering, Sun Yat-sen University

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