Design and development of tunnelling equipment in a model test

Tunnel model test using a small scale tunnelling machine is useful for the simulating tunnelling processes and investigating ground behaviour during tunnel excavation. Advanced mechatronics along with up-to-date machining and control technologies has made it possible to fabricate such machine. These technologies, however, needs to test in a gravity field condition or centrifuge field condition. This paper presents the design concepts of small scale shield tunnelling machine and simulation method for tunnelling processes which could simulate various aspects of tunnelling process and monitor the ground behaviour. Problems of earth pressure acting on the lining of a shield tunnel is focused. This paper presents the simulation method for tunnelling processes and the design method for tunnelling machines with special reference to the problem of earth pressure acting on the lining of a shield tunnel. The paper then introduces and verifies the operation for tunnelling machines in the 1 g field by means of checking the reproducibility of experiment data and their comparison with data in the field. A general view of the model tunnelling machine is shown below. Details of the mechanisms of this machine are described in figure below. Two main tunnelling mechanisms were considered in the development of this machine: (i) The machine provides an overcut in order to model the ground loss that occurs on tunnel installation, (ii) The full face cutting head supports the earth to minimise the ground deformations in front of the tunnel face. It was found that the results of the stress change obtained from model tests using the machine developed in this research fall well within the range of values measured in the field. It is concluded that the results of tunnelling simulation obtained from the model tests using the developed tunnelling machine fall well within the range of values measured in the field. It is recommended that the developed small scale tunnelling machine is useful for the simulating tunnelling processes and investigating ground behaviour during tunnel excavation in experimental work. (A). "Reprinted with permission from Elsevier". For the covering abstract see ITRD E124500.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/08867798
• Authors:
  • KIM, S H
  • MIN, B H
  • LEE, S H
  • YOU, K H
• Publication Date: 2004-7

Language

• English

Media Info

• Pagination: p395
• Serial:
  • TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY. UNDERGROUND SPACE FOR SUSTAINABLE URBAN DEVELOPMENT. PROCEEDINGS OF THE 30TH ITA-AITES WORLD TUNNEL CONGRESS SINGAPORE, 22 - 27 MAY 2004
  • Volume: 19
  • Issue Number: 4-5
  • Publisher: Elsevier
  • ISSN: 0886-7798

Subject/Index Terms

• TRT Terms: Conferences; Pressure; Simulation; Tests; Tunnels
• ITRD Terms: 8525: Conference; 5412: Pressure; 9103: Simulation; 6255: Test; 3374: Tunnel
• Subject Areas: Bridges and other structures; Design; I25: Design of Tunnels;

Filing Info

• Accession Number: 01011574
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Dec 19 2005 3:18PM