Tunneling Machine Research Articles

From research into practice: in-situ studies for design of boom tunnelling machine cutting heads : Hekimoglu, O Z; Fowell, R J Rock Mechanics Contributions and Challenges: Proc 31st US Symposium, Golden, 18–20 June 1990P481–488. Publ Rotterdam: A A Balkema, 1990

From research into practice: in-situ studies for design of boom tunnelling machine cutting heads : Hekimoglu, O Z; Fowell, R J Rock Mechanics Contributions and Challenges: Proc 31st US Symposium, Golden, 18–20 June 1990P481–488. Publ Rotterdam: A A Balkema, 1990

Choosing the parameters for intertial-pulse vibrators to improve the performance of boom tunnelers

1. We have substantiated the criteria of the operation efficiency of a boom working part for a tunneling machine with IPV. 2. We have derived the formulas for these criteria, expressing their dependence on design and operation parameters of the working part. 3. We have demonstrated that, by increasing the weights of unbalanced masses and the spacing between their inertia centers and the rotation axis, one can achieve a greater relative increase of the amplitude of fluctuations of the rotation speed of the cutter bit as compared with the relative reduction in the frequency of these vibrations. 4. Tests of the KP-25 tunneling combine with the working part parameters chosen in accordance with the analytic principles elaborated herein have confirmed a higher productivity of this machine as compared with the PK-9r combine.

EXPERIMENTAL STUDIES ON MONITORING OBSTACLES IN FRONT OF A SHIELD TUNNELING MACHINE USING AN ACOUSTIC WAVE AND RAYLEIGH WAVE

It is necessary to investigate the existance of obstacles or geological structure in front of a shield tunneling machine, especially in case of tunneling under the urban area or sea-bed. Accordingly, some field experiments were carried out for the purpose of developing a monitoring system regarding obstacles in front of the machine. Tow methods which use an acoustic wave and Rayleigh wave respectively, were examined. As a result, both methods were proved to be useful for detecting obstacles in size of 40cm in diameter or more and exist in the maximum range of 7-10m. Joint application of the both methods is expected to improve the reliability of the judgement.

Ground investigation, design and construction monitoring of a full-face tunnel drive in layered Quaternary deposits

Abstract The paper describes the results of ground investigations carried out to assess alternative methods of constructing a pipeline at shallow depth close to old buildings. A layered sequence of Quaternary alluvial and fluvio-glacial deposits is described, and high groundwater flows in gravels are linked to upstream underground sources in limestone. The effectiveness of two sets of ground probing radar equipment is assessed, and a maximum penetration of 4m is indicated where gravel layers are thickest. The first use in the UK of an Iseki Unclemole EPB tunnelling machine is described, and measurements of settlement and heave above the centre line of the pipeline indicate maximum vertical displacements of about 10mm. Mix design for the bentonite slurry face support is briefly discussed.

Tunnelling machines in soft ground: a comparison of slurry and EPB shield systems

Thanks to advances in tunnelling machine technology, tunnels can be driven by machines even in very difficult ground conditions. The two most important objectives in machine tunnelling are: (1) to support the ground reliably during excavation; and (2) to hold the surrounding ground behind the shield tail in balance by grouting while the lining is being erected. The author compares two established machine tunnelling methods—the slurry shield and the earth-pressure balanced shield tunnelling system—with regard to how they achieve these two objectives.

Practical aspects of rear pick arrangements on boom-type tunnelling machine cutting heads : Hekimoglu, O Z; Fowell, R J Min Sci TechnolV10, N2, March 1990, P221–230

Practical aspects of rear pick arrangements on boom-type tunnelling machine cutting heads : Hekimoglu, O Z; Fowell, R J Min Sci TechnolV10, N2, March 1990, P221–230

Full face tunnelling machines — development in the 1980s : Peach, A J Proc SANCOT Seminar on Mechanised Underground Excavation, November 1989P5–21. Publ South Africa: Goldfields Press, 1989

Full face tunnelling machines — development in the 1980s : Peach, A J Proc SANCOT Seminar on Mechanised Underground Excavation, November 1989P5–21. Publ South Africa: Goldfields Press, 1989

Excavation by tunnel boring machine in headrace tunnel of small cross section : Proc 6th Australian Tunnelling Conference, Melbourne, March 1987 V1, P287–298. Publ Parkville: AusIMM, 1987

Excavation by tunnel boring machine in headrace tunnel of small cross section : Proc 6th Australian Tunnelling Conference, Melbourne, March 1987 V1, P287–298. Publ Parkville: AusIMM, 1987

Application of newly developed shield tunnelling machine for intensive curve : Proc 6th Australian Tunnelling Conference, Melbourne, March 1987 V1, P347–354. Publ Parkville: AusIMM, 1987

Application of newly developed shield tunnelling machine for intensive curve : Proc 6th Australian Tunnelling Conference, Melbourne, March 1987 V1, P347–354. Publ Parkville: AusIMM, 1987

Practical aspects of rear pick arrangement on boom-type tunnelling machine cutting heads

The practical aspects of rear pick arrangements on boom-type tunnelling machine cutting heads, investigated during long-term underground trials with the use of various types of picks and cutting heads are described. The results indicate that with imporperly positioned rear picks the cutting rate is significantly reduced, and that progressive wear develops both on tool holders and cutting boom components. It is also emphasised that the cutting head connection to the boom is greatly influenced by excessive depth of sump, and the flange-type cutting heads are much more prone to wear.

Possibility of hard rock excavation by boom-type tunnelling machines : Uehigashi, K; Takairin, Y; Ishikawa, K; Kikuchi, T Proc 6th Australian Tunnelling Conference, Melbourne, March 1987V1. P253–258. Publ Parkville: AusIMM, 1987

Possibility of hard rock excavation by boom-type tunnelling machines : Uehigashi, K; Takairin, Y; Ishikawa, K; Kikuchi, T Proc 6th Australian Tunnelling Conference, Melbourne, March 1987V1. P253–258. Publ Parkville: AusIMM, 1987

土木施工技術へのファジィ理論の応用 : トンネル掘削機の制御を中心に(<特集>ファジィ理論の土木工学への応用)

土木施工技術へのファジィ理論の応用 : トンネル掘削機の制御を中心に(<特集>ファジィ理論の土木工学への応用)

Development of boomtype tunnelling machine for hard rock : Aisawa, R; Sakai, K; Itoh, K; Tsuji, K Proc 6th Australian tunnelling conference, Melbourne, March 1987V1, P209–213. Publ Parkville: AusIMM, 1987

Development of boomtype tunnelling machine for hard rock : Aisawa, R; Sakai, K; Itoh, K; Tsuji, K Proc 6th Australian tunnelling conference, Melbourne, March 1987V1, P209–213. Publ Parkville: AusIMM, 1987

Strategy for adoption of machine tunnelling in India : Verman, M; Jethwa, J L Proc International Symposium Tunnelling for Water Resources and Power Projects, New Delhi, 19–23 January 1988V1, P201–206. Publ New Delhi: Oxford and IBH Publishing Co, 1988

Strategy for adoption of machine tunnelling in India : Verman, M; Jethwa, J L Proc International Symposium Tunnelling for Water Resources and Power Projects, New Delhi, 19–23 January 1988V1, P201–206. Publ New Delhi: Oxford and IBH Publishing Co, 1988

Excavation of large cross section tunnels in accordance with the basic principles of the ‘New Austrian tunnelling method’ (NATM) with particular regard for the use of boom-type tunnelling machines (in german and English) : Will, M World tunnlgspecial edition, P51-55. (paper to the 2nd international tunnelling symposium, Munich, 12 April 1989)

Excavation of large cross section tunnels in accordance with the basic principles of the ‘New Austrian tunnelling method’ (NATM) with particular regard for the use of boom-type tunnelling machines (in german and English) : Will, M World tunnlgspecial edition, P51-55. (paper to the 2nd international tunnelling symposium, Munich, 12 April 1989)

Investigations into the dynamic rock cutting characteristics of boom tunnelling machines : Fowell, R J; Anderson, I; Waggott, A Key Questions in Rock Mechanics: Proc 29th US Symposium, Minneapolis, 13–15 June 1988P563–570. Publ Rotterdam: A A Balkema, 1988

Investigations into the dynamic rock cutting characteristics of boom tunnelling machines : Fowell, R J; Anderson, I; Waggott, A Key Questions in Rock Mechanics: Proc 29th US Symposium, Minneapolis, 13–15 June 1988P563–570. Publ Rotterdam: A A Balkema, 1988

Some full face machine tunnelling developments : Fawcett, D F Proc Int Conference on Foundations and Tunnels, London, 24–26 March 1987V2, P176–181. Publ Edinburgh: Engineering Technic Press, 1987

Some full face machine tunnelling developments : Fawcett, D F Proc Int Conference on Foundations and Tunnels, London, 24–26 March 1987V2, P176–181. Publ Edinburgh: Engineering Technic Press, 1987

Rock abrasiveness testing for tunnelling

The cerchar abrasiveness test for rocks is widely used in the French coal mining industry; it is being introduced in the British coal mining industry, and it is also beginning to be used to assess the abrasiveness of rocks for machine tunnelling. This paper describes an apparatus to perform the test for research purposes, discusses methods of abrasiveness testing, and presents preliminary results for some British rocks. The test apparatus, which was devised to meet almost all aspects of the cerchar test specification, was designed and made at the transport and Road Research Laboratory. Most rocks have proved suitable for testing, but it is not possible to use it for rocks that are too soft or hard. The results of test measurements for some British sedimentary, igneous and metamorphic rocks are provided. The following conclusions are reached: (1) the results of the cerchar abrasiveness test are highly correlated with Mohs' degree of hardness scale; (2) rocks with abrasiveness greater than 4 or 5 may produce high wear rates on tunnelling machine cutters; (3) in an application of the test to the South drive of the selby tunnels, in Yorkshire, England, a definite relation was found between the abrasiveness and quartz content of the rocks in a limited range of coal measures sediments. (TRRL)

Use of a compact full-face tunnelling machine for in-seam heading on Warndt colliery: Dietrich, W Proc 13th World Mining Congress, Improvement of Mine Productivity and Overall Economy by Modern Technology, Stockholm, June 1987V2, P643–652. Publ Rotterdam: A A Balkema, 1987

Use of a compact full-face tunnelling machine for in-seam heading on Warndt colliery: Dietrich, W Proc 13th World Mining Congress, Improvement of Mine Productivity and Overall Economy by Modern Technology, Stockholm, June 1987V2, P643–652. Publ Rotterdam: A A Balkema, 1987

Mine tests of GPKS tunneling machines with an experimental combination-type cutting element

Mine tests of GPKS tunneling machines with an experimental combination-type cutting element