Accurate assessment of pipeline settlement induced by shield tunneling is important for the safety of underground pipelines. This paper takes the Hangzhou Metro Line No. 1 as background. A three-dimensional model is established using FLAC3D to investigate the effects of shield tunneling on existing pipelines in transverse and longitudinal directions. In combination with the monitoring data, the effects of the excavation of the left line and right line on pipeline settlement are analyzed respectively. The results show that a transverse pipeline is relatively more dangerous than a longitudinal pipeline. Further parametric studies are made on the transverse pipeline, including burial depth, pipeline material and soil stiffness. The influence of burial depth on pipeline settlement is very small, while the influence of pipeline material and soil stiffness is much greater. When the elastic modulus of a pipeline or soil increases, the maximum and differential settlements of pipelines are obviously reduced. This study can be a reference for the future construction of the Hangzhou Metro.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Numerical Analysis of the Effect of Tunnel Excavation on Underground Pipelines


    Contributors:
    Gan, Penglu (author) / Tang, Xiaowu (author) / Zhao, Yu (author) / Wang, Hengyu (author)

    Conference:

    International Conference on Pipelines and Trenchless Technology 2014 ; 2014 ; Xiamen, China


    Published in:

    ICPTT 2014 ; 763-772


    Publication date :

    2014-12-01




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




    Reliability Analysis of Underground Pipelines Subject to Disturbance of Shield Tunnel Excavation

    Zhang, Q. / Yang, C.-y. / Cheng, Q.-f. et al. | British Library Conference Proceedings | 2007



    Numerical Study on the Effect of Twin-Tube Shield Excavation on Adjacent Pipelines

    Wang, Xin / Zhao, De-Shen / Xu, Meng-Lin | Tema Archive | 2012


    Spreader for underground excavation trolley

    JIA TIFENG / DU XIANGHU / ZHAO XINGYIN et al. | European Patent Office | 2020

    Free access

    Pipelines -- Great underground highway

    Scarlott, C.A. | Engineering Index Backfile | 1953