LIGHTWEIGHT DESIGN OF THE CUTTER HEAD OF THE PIPE JACKING MACHINE UNDER THE WEAKLY WEATHERED TUFF LAVA FORMATION (MT)

XU XianFeng; CHEN ZhouXiao; HUANG ZhiGang; XING PengFei

doi:10.16579/j.issn.1001.9669.2022.06.017

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LIGHTWEIGHT DESIGN OF THE CUTTER HEAD OF THE PIPE JACKING MACHINE UNDER THE WEAKLY WEATHERED TUFF LAVA FORMATION (MT)

更新时间：2023-06-09

- LIGHTWEIGHT DESIGN OF THE CUTTER HEAD OF THE PIPE JACKING MACHINE UNDER THE WEAKLY WEATHERED TUFF LAVA FORMATION (MT)
- Journal of Mechanical Strength Issue 6, Pages: 1387-1394(2022)
- 作者机构：
  
  1. 核工业井巷建设集团有限公司
  2. 福州水务平潭引水开发有限公司
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2022.06.017
  CLC：
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XU XianFeng, CHEN ZhouXiao, HUANG ZhiGang, et al. LIGHTWEIGHT DESIGN OF THE CUTTER HEAD OF THE PIPE JACKING MACHINE UNDER THE WEAKLY WEATHERED TUFF LAVA FORMATION (MT). [J]. Journal of Mechanical Strength (6):1387-1394(2022)
DOI：

XU XianFeng, CHEN ZhouXiao, HUANG ZhiGang, et al. LIGHTWEIGHT DESIGN OF THE CUTTER HEAD OF THE PIPE JACKING MACHINE UNDER THE WEAKLY WEATHERED TUFF LAVA FORMATION (MT). [J]. Journal of Mechanical Strength (6):1387-1394(2022) DOI： 10.16579/j.issn.1001.9669.2022.06.017.

摘要

弱风化凝灰熔岩地层作为一种极硬岩地层，岩体抗压强度高，顶管施工难度大，若刀盘强度和刚度不足则极易发生安全事故。为研究D2000复合地层泥水平衡顶管机刀盘在凝灰熔岩地层下的力学性能，对刀盘模型进行静力学分析，得到了刀盘的等效应力和变形云图，确定危险位置位于正面滚刀安装侧板底部，最大等效应力值为178.21 MPa,最大变形量为0.50 mm,结果符合刀盘材料强度和刚度要求。对刀盘进行轻量化设计，得到最大应力、最大变形量以及刀盘质量随刀盘厚度减小的量变化规律，改进后的刀盘应力和变形满足优化约束条件，且其质量与未优化前相比减小8.23%,满足刀盘轻量化设计要求。

Abstract

In order to study the structure design and mechanical properties of the cutterhead of D2000 Slurry balanced pipe jacking machine for composite formation, the static analysis of the cutterhead model was carried out, and the equivalent stress and deformation nephogram of the cutterhead were obtained. It was determined that the dangerous position was located at the bottom of the front cutter installation side plate. The maximum equivalent stress value was 178.21 MPa, and the maximum deformation was 0.50 mm. The results showed that the cutterhead material was made of strength and stiffness requirements. Through the lightweight design of cutter head, the maximum stress, maximum deformation and cutter head mass are obtained. The results show that the stress and deformation of the improved cutterhead meet the optimization constraints. The mass reduction is reduced by 8.23% compared with that before optimization, which meets the requirements of lightweight design of cutterhead.

关键词

顶管机刀盘结构设计有限元分析优化

Keywords

Pipe jacking machineCutterhead structure designFinite element analysisOptimization

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