Journal of Mining Engineering

Journal of Mining Engineering

A new method for selection of optimum tunnel excavation method based on multi criteria decision making

Document Type : Technical Note

Authors
1 -
2 Mining Engineering Department, Mahallat Branch, Azad University
Abstract
Selection of tunnel excavation method is one of the most important issues raised in the tunneling projects Because experience has shown that the results of incorrect choice of excavation method can lead to catastrophic situations. Various parameters are effective in choosing the right option for excavation a tunnel. The most important parameters include geological and geotechnical, geometric, executive, economic parameters and parameters related to infrastructure and necessary conditions for tunneling methods. in this research, a model for comprehensive evaluation and selection of the most suitable tunnel excavation method from the methods of drill and blasting, controlled drill and blasting, cut and cover, Austrian drilling method, road header machine and conventional shield excavation (TBM) is presented.
In this model, after studying and reviewing the relevant topics, the indicators that are effective in evaluation were considered and since the importance of the indicators in the evaluation is not the same, a questionnaire was prepared to determine their weight and their weight was determined by aggregating the opinions of experts. Scoring for each of the indicators for each of the excavation methods was done by evaluation questionnaires containing questions in numerical quantification. Finally, the simple weighting method (SAW) was used hierarchically to calculate the final score of each method. In this method, according to the geological and geotechnical conditions and the geometric parameters of the existing tunnel, the score of each index is multiplied by the final weight of that index and from the sum of them, the final score of each method is obtained. Finally, the method with the highest score is selected as the appropriate excavation method.
Keywords
Subjects

Tsiambaos, G., Saroglou, H,(2010): "Excavatability assessment of rock masses using the geological strength index", Bull Eng Geol Environ, p. p. 13-270.##Dey, K., Ghose, A.K. (2008); "Predicting cuttability with surface miners (A rock mass classification approach)", Journal of mines, metals and fuels, p. p. 85-91. ##Bell, F.G., (2004), Engineering geology and construction, Taylor and Francis Group, London, p791. ## وزارت صنعت، معدن و تجارت، دفتر نظارت امور معدنی، گردآورنده برنامه تهیه ضوابط و معیارهای معدن، (1394)، راهنمای پیش‌بینی رفتار تونل‌ها و انتخاب روش حفر مناسب، انتشارات سازمان نظام مهندسی معدن ایران. ## عطایی، محمد، (1389)، تصمیم‌گیری چند‌معیاره، انتشارات دانشگاه صنعتی شاهرود. ## International Society for Rock Mechanics ISRM, (1981), Rock characterization, testing and monitoring, In: Brown ET (ed) ISRM suggested methods. Pergamon Press, Oxford, p 211. ## AITES-ITA Working Group NO.14-2000,Recomandation and Classification for Tunnel Boring Machines(TBMs), www.ita-aites.org. ## Nyqvist ,L., (2005), Tunnelling options in long drives, Master thesis, Leula University Technology. ## Palmström, A.,(1995), RMi - a rock mass characterization system for rock engineering purposes, Unversity of Oslo. ## Sinha, R.S., (1989), Underground Structure Design and Instrumentation, Elsevier Science Publisher, B.V. ## Aydan, O., Ulusay, R., Tokashiki, N., (2013), A New Rock Mass Quality Rating System: Rock Mass Quality Rating (RMQR) and Its Application to the Estimation of Geomechanical Characteristics of Rock Masses, Journal of rock mechanics and rock engineering, On line published, 4 Sep. ## Isaksson, T., (2002), Model for estimation of time and cost based on risk evaluation applied on tunnel projects, Doctoral Thesis, Division of Soil and Rock Mechanics Royal Institute of Technolog Stockholm, Sweden. ## Kaiser, P.K. & McCreath, D.R. (1994). Rock Mechanics Considerations for Drilled or Bored Excavationsin Hard Rock . Tunnelling and Underground Space technology, 1994, Vol.9 No.4, pp 425–437. ## Hansen, A.M. (2008). TBM vs D&B – Pros and Cons, AMH ConsultAS. Personal communication. ## Holen, H. (1998).TBM vs Drill & BlastTunnelling. Publication NO.11, NorwegianTunnelling Society. ## حسن پور، جعفر، رستمی، جمال (1389)، عملکرد ماشین‌های تونل‌بری در سنگ سخت، نشر شرم، نشر فن آریا. ## محمودی، رضا، (1384)، حفر تونل‌ها با روش آتشباری و توجه به افزایش سرعت پیشروی. مجموعه مقالات دومین همایش منطقه‌ای معدن و علوم وابسته، صفحات ۲۸۵ تا ۲۹۷. ## Brian Fulcher, Eric Hudson-Smith, Lok Hom. (2015). Decision Process and Criteria for Selection of a Preferred Tunneling Method. Kenny Construction Company, The Robbins Company, Geosite,Pty,Ltd. ## راهکار مدیریت، مدیریت پروژه، ( 1389). http://www.mgtsolution.com/## AITES-ITA, (1997), Characerisation of TBM for tunnelling flysches, Workshop: "The Gibraltar Crossing", www.ita-aites.org. ## تقی‌پور، سیاوش، رخشنده، مهدی، (1382)، طبقه‌بندی توده سنگ‌ها، انتشارات جهاد دانشگاهی واحد صنعتی امیرکبیر. ## مدیریت طرح‌های عمرانی(1382)، انتشارات قرارگاه سازندگی خاتم الانبیا، چاپ دوم. ## University of Trondheim, (1998), “Hard rock Tunnel Boring Costs”, University of Trondheim, The Norwegian Institute of Technology, pp 3545-3551. ## محمدی کری بزرگ، سیدمیلاد؛ 1400؛ «ارایه‌ روشی برای انتخاب مناسب حفر تونل بر اساس تصمیم‌گیری چندمعیاره»، پایان‌نامه کارشناسی ارشد؛ دانشکده مهندسی معدن؛ دانشگاه صنعتی امیرکبیر. ##
Volume 18, Issue 60
Autumn 2023
Pages 68-81

  • Receive Date 06 November 2022
  • Revise Date 21 January 2023
  • Accept Date 27 May 2023