DYNAMIC ANALYSIS OF TBM DRIVING SYSTEM IN UNCERTAIN GEOLOGY

ZHU QingDong

doi:10.16579/j.issn.1001.9669.2020.05.023

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DYNAMIC ANALYSIS OF TBM DRIVING SYSTEM IN UNCERTAIN GEOLOGY

更新时间：2022-09-22

- DYNAMIC ANALYSIS OF TBM DRIVING SYSTEM IN UNCERTAIN GEOLOGY
- Journal of Mechanical Strength Vol. 42, Issue 5, Pages: 1169-1176(2020)
- 作者机构：
  
  1. 鞍山师范学院美术学院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2020.05.023
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ZHU QingDong. DYNAMIC ANALYSIS OF TBM DRIVING SYSTEM IN UNCERTAIN GEOLOGY. [J]. 42(5):1169-1176(2020)
DOI：

ZHU QingDong. DYNAMIC ANALYSIS OF TBM DRIVING SYSTEM IN UNCERTAIN GEOLOGY. [J]. 42(5):1169-1176(2020) DOI： 10.16579/j.issn.1001.9669.2020.05.023.

摘要

为了研究不确定地质情况下的全断面岩石掘进机(TBM)驱动系统的振动响应差异性以及如何根据不同地质情况选择合理的驱动形式,提出一种不确定地质下的TBM驱动系统动力学分析方法。首先,建立了地质等效模型及典型工况模型,并由集中质量法建立TBM驱动系统的多自由度耦合动力学模型。然后,根据不同地质情况并结合区间理论得到与地质情况相对应的各工况的区间载荷,并将区间载荷代入动力学模型,求解得到不确定地质和各工况情况下的各驱动形式的动力学响应。最后,通过对比最大推力工况下不同驱动形式下的动力学响应区间得到:(1) TBM掘进时,当地质均为复合岩层时,对称分布形式的驱动形式较为稳定。(2)当地质为均质岩层时,均匀分布形式较为稳定。(3)随着地质中硬岩数量的增多,驱动系统的布置形式对于振动的影响也在逐渐增加。

Abstract

In order to study the difference of vibration response of TBM driving system under uncertain geology and how to select reasonable driving forms according to different geological conditions,a dynamic analysis method of TBM driving system in uncertain geology is proposed. Firstly,a geological equivalent model and typical working condition model are established,and a multi-degree-of-freedom coupled dynamic model of TBM driving system is established by the lumped mass method. Then,according to different geological conditions and combined with interval theory,the interval loads of each working conditions corresponding to geological conditions are obtained,and the interval loads are substituted into the dynamic model to obtain the dynamic response of various driving modes under uncertain geology and working conditions. Finally,by comparing the dynamic response intervals of different driving modes under maximum thrust conditions,the results are as follows:（ 1） When the geology of TBM tunneling is complex rock strata,the driving form of symmetrical distribution is relatively stable.（ 2） When the geology is homogeneous strata,the uniform distribution is stable.（ 3） With the increase of the number of hard rock in geology,the influence of the layout of driving system on vibration is gradually increasing.

关键词

TBM驱动系统不确定地质集中质量法动力学模型区间载荷动力学分析

Keywords

Driving system of TBMUncertain geologyLumped mass methodDynamic modelInterval loadDynamic Analysis

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