3D FEM Simulation and Analysis of Compacting Effects on Underground Pipeline by Construction of Single Jacked Pile

Aiming at the practical engineering problem that the construction of jacked piles will do great harm to the adjacent underground pipeline, a rational three-dimensional finite element model was established. Using the displacement penetration method, the complete uninterrupted penetrating process of single jacked pile was simulated based on ABAQUS. The elastoplastic constitution law, large deformation, soil's gravity field, pile-soil friction and pipeline-soil friction contact were taken into account. The compacting effects on underground pipeline by construction of single jacked pile was simulated and analyzed. The influence range, the maximum value of the stress and displacement and the distortion law of the pipeline induced by jacked pile were obtained. The results showed that the horizontal displacement was much bigger than the vertical displacement, and the pipeline would fall at the end close to the symmetric plane and lift at the other end. The principle tensile stress mainly aroused by the pipeline's horizontal displacement would cause tension fracture. The sections of the pipeline near the pile were dangerous, which should be particularly protected. The stress and displacement would increase with the increment of pipeline's embedment or the decrement of the distance between pile and pipeline, and the later's influence was more greater than the former's.

• Record URL:
  • https://doi.org/10.1061/41202(423)151
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784412022
• Supplemental Notes:
  • Copyright © 2011 ASCE
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Lu, Qun
  • Yuan, Jianbo
  • Li, Huixia
• Conference:
  • International Conference on Pipelines and Trenchless Technology 2011
  • Location: Beijing , China
  • Date: 2011-10-26 to 2011-10-29
• Publication Date: 2011

Language

• English

Media Info

• Media Type: Digital/other
• Features: References;
• Pagination: pp 1429-1437
• Monograph Title: ICPTT 2011: Sustainable Solutions For Water, Sewer, Gas, And Oil Pipelines

Subject/Index Terms

• TRT Terms: Construction; Deformation; Finite element method; Jacketing (Strengthening); Support piles; Tensile strength; Water pipelines
• Identifier Terms: ABAQUS (Computer program)
• Subject Areas: Construction; Pipelines; I50: Construction and Supervision of Construction;

Filing Info

• Accession Number: 01469548
• Record Type: Publication
• ISBN: 9780784412022
• Files: TRIS, ASCE
• Created Date: Jan 17 2013 1:47PM