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COMPARISON OF MACHINE UTILIZATION TIME AND PERFORMANCE FOR ROADHEADER AND IMPACT HAMMER IN KADIKOY-KARTAL METRO TUNNELS (ISTANBUL)

I. Ocak

First published: 2008DOI pendingView metrics

Abstract

Drilling and blasting is the oldest excavation method in mining and tunnelling applications especially in hard rock conditions. But in recent year, the application of roadheaders and impact hammers in hard rock conditions has increased considerably in both civil and mining engineering fields. The prediction of machine utilization time and determining performance plays an important role in the time scheduling of the tunnelling projects. The tunnels of the Kadikoy-Kartal Metro are under construction. This paper summarizes the construction methods of the Kadikoy-Kartal Metro tunnels and the performance of the roadheader and impact hammer. At the same time, machine utilization time was compared for roadheader and impact hammer for Kozyatagi Station. Average uniaxial compressive strength (UCS) for roadheader (402 HP) 132 MPa, for impact hammer (143 HP) 58.3 MPa. UCS was obtained from daily face blocks in laboratory. The result of this study show that machine utilization time for roadheader 28.2 \% and for impact hammers 13.7 \%.

Publication details

Title
COMPARISON OF MACHINE UTILIZATION TIME AND PERFORMANCE FOR ROADHEADER AND IMPACT HAMMER IN KADIKOY-KARTAL METRO TUNNELS (ISTANBUL)
Authors
I. Ocak
Proceedings
8th International Scientific Conference - SGEM2008
Publisher
SGEM Scientific GeoConference
Year
2008
Pages
269-276
SWS Citekey
Ocak2008269276
ISSN
1314-2704
ISBN
954-918181-2
Language
en
Publication type
Conference Paper
Keywords
Tunnel excavationexcavation performancemachine utilization time
References7

  1. Istanbul Metropolitan Municipality, 2006, The Transportation System of Istanbul Kadikoy-Kartal Metro Line: Geotechnical Report of Tunnel Construction 8+000 km and 1 1+000 km, Istanbul.

  2. Istanbul Metropolitan Municipality, 2002, Technical Contract of Istanbul Kadikoy-Kartal Metro Line Construction.

  3. IMM, Istanbul Metropolitan Municipality, 2006, Istanbul Metropolitan Municipality, General Directorate of IETT, Kadikoy-Kartal Railway Public Transportation System, Kozyatagi Pl Tunnel Project.

  4. Copur, H., Czdemir, L., Rostami, J., 1998, Roadheader applications in mining and tunneling. Mining Engineering, 50 (3), 38-42.

  5. Thuro, K., Plinninger, RJ., 1998, Geological limits in roadheader excavationfour case studies. 8th International IAEG Congress, Vancouver, vol. 2, pp. 35453552.

  6. Bilgin, N., Dincer, T, Copur, H., 2002. The performance of impact hammers from Schmidt hammer rebound values in Istanbul tunnel drivages. Tunnelling and Underground Space Technology 17, 237-247.

  7. Tuncdemir, H. 2007, Impact hammer applications in Istanbul metro tunnels, Tunnelling and Underground Space Technology, 23, 264-272

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