Scientific Quarterly Journal of Iranian Association of Engineering Geology

Scientific Quarterly Journal of Iranian Association of Engineering Geology

Assessment of TBM performance in tunnel excavation (first lot of Karaj - Tehran water conveyance tunnel)

Document Type : Original Article

Authors
Majid Tajik 1
Mohammad Oruji 2
Arman Novin 3
1 1. M Sc in Engineering Geology, SAHEL consultant engineering
2 Bachelor in Civil Engineering, SAHEL consultant engineering
3 M Sc in Mining Engineering, SAHEL consultant engineering
Abstract
Karaj - Tehran water conveyance tunnel (LOT1) was excavated by TBM with 4.66 m diameter
whereas the utilization factor is different with tunnel length. According to geological condition,
excavated length and personal skill, TBM performance has been compared in four equal parts of
tunnel. Evaluation of TBM Activity and delay time shows that in addition of specified factors, the
utilization factor also depends on the overlap of activities. In this project utilization factor for every
part is 18.30, 22.26, 16.09 and 16.08 respectively.
Keywords
TBM
water conveyance tunnel
utilization factor
Geology
Subjects
آرمان نوین،  آ. 1385، پیش بینی نرخ نفوذ ماشین حفاری TBM در تونل انتقال آب کرج – تهران، پایان‌نامه کارشناسی ارشد دانشگاه آزاد اسلامی واحد علوم وتحقیقات
موسسه مهندسین مشاور ساحل، 1383، "گزارش زمین ساخت"، تهران، پروژه تونل انتقال آب کرج-تهران
موسسه مهندسین مشاور ساحل، 1384، "گزارش زمین‌شناسی مهندسی"، تهران، پروژه تونل انتقال آب کرج‌- تهران
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Scientific Quarterly Journal of Iranian Association of Engineering Geology
Volume 3, Number 1 & 2
September 2010
Pages 41-50

  • Receive Date 10 October 2010
  • Revise Date 20 March 2011
  • Accept Date 27 July 2011