设计、施工、监测

缓和曲线段盾构机平面姿态与超挖控制分析

  • 黄大维 ,
  • 陈凯 ,
  • 陈后宏 ,
  • 陈永青 ,
  • 余珏
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  • 1.华东交通大学 山区土木工程安全与韧性全国重点实验室,南昌 330013;
    2.华东交通大学 综合立体交通信息感知与融合江西省重点实验室,南昌 330013
黄大维(1984—),男,湖南郴州人,博士,教授、博士生导师,主要从事地下空间领域研究工作。E-mail:gddthdw@126.com

收稿日期: 2025-04-23

  网络出版日期: 2025-12-31

基金资助

国家自然科学基金(52378398);江西省主要学科学术和技术带头人领军人才项目(20232BCJ22009);江西省自然科学基金资助项目(20242BAB26077)

Analysis of Plane Attitude and Overexcavation Control of Shield Tunneling Machine in Transition Curve Section

  • Huang Dawei ,
  • Chen Kai ,
  • Chen Houhong ,
  • Chen Yongqing ,
  • Yu Jue
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  • 1. State Key Laboratoryof safety and Resilience of Civil Engineering in Mountain Area, East China Jiaotong University, Nanchang 330013, P. R. China;
    2. Jiangxi Provincial Key Laboratory of Comprehensive Stereoscopic Traffic Information Perception and Fusion, East China Jiaotong University, Nanchang 330013, P. R. China

Received date: 2025-04-23

  Online published: 2025-12-31

摘要

盾构机姿态控制主要由伸缩顶推千斤顶和控制超挖刀伸长量来实现,由于缓和曲线段的曲线线型较为复杂,盾构机的姿态往往难以控制。针对以上问题,基于盾构机超挖模式和平面姿态分析,确定了盾构机合理的超挖模式为内侧半周超挖,并对内外侧顶推行程差和超挖刀最大伸长量进行了计算。计算过程应用二维平面来简化盾构机顶推千斤顶,仅考虑左右两端的千斤顶对盾构机姿态的影响。最终得到了盾构机直线进缓和曲线段、缓和曲线段的顶推行程差以及超挖刀最大伸长量计算公式。以某工程施工数据代入上述公式,分析得出直线进缓和曲线段内外侧顶推行程差和超挖刀最大伸长量均与盾构机掘进距离成二次抛物线关系,在缓和曲线段中均成线性关系。研究可为盾构机过缓和曲线时的平面姿态与超挖控制提供科学依据。

本文引用格式

黄大维 , 陈凯 , 陈后宏 , 陈永青 , 余珏 . 缓和曲线段盾构机平面姿态与超挖控制分析[J]. 地下空间与工程学报, 2025 , 21(6) : 2104 -2111 . DOI: 10.20174/j.JUSE.2025.06.25

Abstract

The attitude control of the shield machine is mainly realized by the telescopic pushing jack and the control of the elongation of the over-excavation cutter. Due to the complexity of the curve line of the transition curve section, the attitude of the shield machine is often difficult to control. In view of the above problems, based on the over-excavation mode and plane attitude analysis of the shield machine, the reasonable over-excavation mode of the shield machine is determined to be the inner half-circle over-excavation, and the difference between the inner and outer pushing strokes and the maximum elongation of the over-excavation cutter is calculated. In the calculation process, a two-dimensional plane is used to simplify the jacking jack of the shield machine, and only the influence of the jacks at the left and right ends on the attitude of the shield machine is considered. Finally, the calculation formulas of the jacking stroke difference and the maximum elongation of the over-excavation cutter of the shield machine in the straight-line transition curve section and the transition curve section are obtained. Taking the construction data of a project into the above formula, it is concluded that the push stroke difference between the inner and outer sides of the straight line into the transition curve section and the maximum elongation of the over-excavation cutter is in a quadratic parabola relationship with the tunneling distance of the shield machine, and the transition curve section. The research can provide a scientific basis for the plane attitude and over-excavation control of the shield machine when the shield machine is over-gentle curve.

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