Research on the Mechanism Motion and Structural Stiffness of Shield Segment Erector

Shutao Yu; Liying Deng; Xin Wang

doi:10.6919/ICJE.202411_10(11).0005

Authors

Shutao Yu
Liying Deng
Xin Wang

DOI:

https://doi.org/10.6919/ICJE.202411_10(11).0005

Keywords:

Segment Erector; Loading Conditions; Simply Supported Beam Model; Stiffness Analysis.

Abstract

To validate whether the load characteristics of the shield segment erector meet the design specifications, this study conducted a detailed analysis of torque requirements under four typical working conditions. First, focusing on the functional requirements and operational behavior of the erector, a detailed 3D model was created using 3D design software. Next, the erector’s structure was simplified, with its load-bearing conditions approximated by a simply supported beam model, leading to the derivation of corresponding torque calculation formulas and the computation of the required design torque values. Finally, static structural analysis of the erector’s stiffness under four load scenarios was carried out using ANSYS software. The results revealed that under the maximum load condition, the erector experienced a maximum stress of 213.74 MPa and a maximum displacement of 1.6 mm, both of which are within the safe range and meet the structural strength requirements.

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