Tunneling Effects on Pile Group Response in Bangkok

Tunneling adjacent to an existing pile group may induce additional force, bending moment and settlement of a pile. Moreover, it may cause load redistribution and differential settlement in a pile group. In this paper, the construction of a water diversion tunnel with an outside diameter (D) of 5.55 m constructed in Bangkok is reported. The tunnel was constructed in very stiff clay using an earth pressure balance shield with a cover-to-diameter ratio of 4.5 and very close to a pile group. The pile group was located within a distance of 1D from the tunnel springline. Tunneling induced ground responses were measured by using surface settlement points, extensometers and inclinometers. To investigate the influence of tunnelling on the pile group, a three-dimensional, elasto-plastic, coupled-consolidation numerical analysis was also conducted to simulate the pile group responses. Observed ground responses and computed changes of horizontal effective stress and excess pore water pressure around piles are reported. Redistribution of pile shaft resistance, load transfer in the pile group and pile head settlements are investigated.

• Record URL:
  • https://doi.org/10.1061/9780784412121.319
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784412121
• Supplemental Notes:
  • © 2012 American Society of Civil Engineers.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Boonyarak, Thayanan
  • Ng, Charles W W
• Conference:
  • GeoCongress 2012
  • Location: Oakland California, United States
  • Date: 2012-3-25 to 2012-3-29
• Publication Date: 2012-3

Language

• English

Media Info

• Media Type: Web
• Pagination: pp 3119-3128
• Monograph Title: GeoCongress 2012: State of the Art and Practice in Geotechnical Engineering

Subject/Index Terms

• TRT Terms: Bending moments; Effective stress; Load transfer; Pile groups; Pore pressure; Settlement (Structures); Simulation; Tunneling
• Geographic Terms: Bangkok (Thailand)
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01530397
• Record Type: Publication
• ISBN: 9780784412121
• Files: TRIS, ASCE
• Created Date: Jul 14 2014 4:50PM