THREE-DIMENSIONAL SIMULATION OF AN ADVANCING TUNNEL SUPPORTED WITH FOREPOLES, SHOTCRETE, STEEL RIBS AND ROCKBOLTS. PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON NUMERICAL METHODS IN GEOMECHANICS, 11-15 APRIL 1988, INNSBRUCK, AUSTRIA. VOLUMES 1 - 3

A three dimensional simulation of the tunnel excavation by the finite element method has been carried out with particular emphasis on the reinforcement effect of steel forepoles as well as of shotcrete and rockbolts on the deformational behaviour and the stability of the tunnel. The results of the three dimensional numerical analysis and in-situ measurements taken during the Hae railway tunnel project are presented and compared with each other. The tunnel under consideration is a single railway tunnel 1079 m long, 6.5 m high and 6 m wide. The overburden ranges between 20 m to 65 m under the mountain peaks and 8 m under the valley bottoms. At one site the tunnel passes under an asphalt plant which is very sensitive to settlement. The geology of the site consists of 3 different formations: alluvial deposits (clay, silt and gravel of 2-30 mm in size), shale, and gabbro. Laboratory tests include uniaxial and triaxial tests on ground samples and permeability tests. In situ standard penetration tests pressuremeter and permeability test results are also provided. A detailed discussion on the reinforcing effect of the forepoles is also provided. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/906191809X
• Corporate Authors:

  AA Balkema

  P.O. Box 1675
  Rotterdam,   Netherlands  BR-3000
• Authors:
  • Aydan, O
  • KYOYA, T
  • Ichikawa, Y
  • Kawamoto, T
  • Ito, T
  • SHIMIZU, Y
• Publication Date: 1988

Media Info

• Features: References;
• Pagination: p. 1481-86
• Serial:
  • Publication of: Balkema (AA)
  • Publisher: AA Balkema

Subject/Index Terms

• TRT Terms: Alluvium; Conferences; Design; Dislocation (Geology); Excavation; Finite element method; Gabbro; Mathematical models; Reinforcement (Engineering); Shale; Shotcrete; Simulation; Steel; Stresses; Tunnel lining; Tunnels
• ITRD Terms: 4030: Alluvium; 8525: Conference; 9011: Design (overall design); 5155: Excavation (process); 6490: Finite element method; 4125: Gabbro; 6473: Mathematical model; 5483: Movement; 3471: Reinforcement (in mater); 4168: Shale; 4730: Shotcrete; 9103: Simulation; 4542: Steel; 5575: Stress (in material); 9080: Three dimensional; 3374: Tunnel; 3385: Tunnel lining
• Subject Areas: Bridges and other structures; Construction; Design; Highways;

Filing Info

• Accession Number: 00492670
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 90-6191-809-X
• Files: ITRD, TRIS
• Created Date: Mar 31 1990 12:00AM