Dynamic Characteristic Analysis for Fluid-Conveying Pipe of TBM

2018 4th International Conference on Environmental Science and Material Application

生态环境科学;材料科学

Chen, Ting^1^2

State Key Laboratory of High Performance and Complex Manufacturing, Central South University, Changsha

410083, China^1

College of Mechanical and Electrical Engineering, Central South University, Changsha

410083, China^2

关键词: Dimensionless velocity;    Dynamic characteristic analysis;    Fluid-conveying pipe;    Fluid-solid coupling;    Foundation vibration;    Response characteristic;    Vibration amplitude;    Vibration resistance;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/252/5/052120/pdf
DOI  :  10.1088/1755-1315/252/5/052120

来源: IOP

【 摘 要 】

Aiming at the influence of the strong vibration generated in the working process of the full-section hard rock tunneling machine on the response characteristics of the hydraulic straight pipe, according to the fluid-solid coupling theory and forced vibration theory, the transverse motion mathematical model of the straight pipe under the basic vibration was established. The model was solved by Galerkin method, and the correctness of the model was verified by experiments. The influence of foundation vibration parameters and fluid velocity on the response characteristics of straight pipe is analyzed by simulation. It is found that the vibration amplitude of straight pipe increases with the increase of foundation vibration amplitude and foundation vibration frequency. The higher the foundation vibration frequency, the smaller the liquid velocity is when the straight pipe resonates. At the same time, the working failure areas of straight pipe under different dimensionless velocity and fluid-pipe mass ratio are obtained. The research provides some theoretical basis for the vibration resistance design of TBM direct pipeline.