Tunnel stability and arching effects during tunneling in soft clayey soil

A series of centrifuge model tests and numerical simulations of these tests were carried out to investigate the surface settlement troughs, excess pore water pressure generation, tunnel stability and arching effects that develop during tunneling in soft clayey soil. The two methods were found to provide consistent results of the surface settlement troughs, excess pore water generation, and the overload factors at collapse for both single and parallel tunneling. The arching ratio describes the evolution of the arching effects on the soil mass surrounding tunnels and can be derived from the numerical analysis. The boundaries of the arching zones for both single tunneling and parallel tunneling were determined. In addition, the boundaries of the positive and negative arching zones were also proposed. (A) "Reprinted with permission from Elsevier"

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/08867798
• Authors:
  • LEE, C J
  • WU, B R
  • CHIANG, K H
  • CHEN, H T
• Publication Date: 2006-3

Language

• English

Media Info

• Pagination: 119-132
• Serial:
  • Tunnelling and Underground Space Technology
  • Volume: 21
  • Issue Number: 2
  • Publisher: Elsevier
  • ISSN: 0886-7798
  • Serial URL: https://www.sciencedirect.com/journal/tunnelling-and-underground-space-technology

Subject/Index Terms

• TRT Terms: Clay; Mathematical analysis; Mechanical stability; Simulation; Tunnels; Weight
• ITRD Terms: 6471: Analysis (math); 4177: Clay; 9103: Simulation; 5930: Stability; 3374: Tunnel; 5485: Weight
• Subject Areas: Bridges and other structures; Construction; I54: Construction of Tunnels;

Filing Info

• Accession Number: 01024266
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: May 18 2006 8:42AM