The effect of TBM operational parameters on the wear of cutting tools using a tunnel boring machine laboratory simulator

نوع مقاله : مقاله پژوهشی

نویسندگان

Dept. of Mining Engineering, Sahand University of Technology, Tabriz, Iran

چکیده

The performance of mechanized excavation depends on the soil abrasivity and the resistance of cutting tools against wear. The wear has a negative effect on excavation machine parameters, such as penetration rate, and reduces the machine's efficiency. Worn tools require replacement, which interrupts the project and incurs high maintenance costs. For this reason, many efforts have been made to understand the interaction between soil and cutting tools. Various wear-measuring devices have been designed and built to measure soil abrasivity and cutting tool wear. In this research, to study the mechanism of tunnel excavation in the laboratory, a tunnel boring machine laboratory simulator was designed and built, and the effect of the operating parameters of the excavation machine on the average wear of cutting tools was studied. The features of this machine are its horizontal excavation, the low rotation speed of the cutterhead, continuous contact of the cutters with fresh soil during the test, and continuous injection of materials with a specific injection pressure during the test. Using the granulation of soil prepared from Tabriz metro line 2 in three moisture content of zero, 7, and 13%, the effect of the rotation speed of the cutterhead, rotation time, and penetration rate on the wear of cutting tools was studied. The investigations showed that with the increase in the rotation speed of the cutterhead, the average wear increases. Also, the increasing rotation time has caused more friction between the cutting tools and the cutterhead with the soil, and the wear has increased. The wear decreased with the increase in the penetration rate, despite the increase in the intensity of the conflict between the soil particles and the cutting tools. The results obtained from this research by using a tunnel boring machine laboratory simulator are in good agreement with previous studies.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

The effect of TBM operational parameters on the wear of cutting tools using a tunnel boring machine laboratory simulator

نویسندگان [English]

  • Amir Hossein Nickjou Tabrizi
  • Hamid Chakeri
  • Mohammad Darbor
  • Hadi Shakeri
Dept. of Mining Engineering, Sahand University of Technology, Tabriz, Iran
چکیده [English]

The performance of mechanized excavation depends on the soil abrasivity and the resistance of cutting tools against wear. The wear has a negative effect on excavation machine parameters, such as penetration rate, and reduces the machine's efficiency. Worn tools require replacement, which interrupts the project and incurs high maintenance costs. For this reason, many efforts have been made to understand the interaction between soil and cutting tools. Various wear-measuring devices have been designed and built to measure soil abrasivity and cutting tool wear. In this research, to study the mechanism of tunnel excavation in the laboratory, a tunnel boring machine laboratory simulator was designed and built, and the effect of the operating parameters of the excavation machine on the average wear of cutting tools was studied. The features of this machine are its horizontal excavation, the low rotation speed of the cutterhead, continuous contact of the cutters with fresh soil during the test, and continuous injection of materials with a specific injection pressure during the test. Using the granulation of soil prepared from Tabriz metro line 2 in three moisture content of zero, 7, and 13%, the effect of the rotation speed of the cutterhead, rotation time, and penetration rate on the wear of cutting tools was studied. The investigations showed that with the increase in the rotation speed of the cutterhead, the average wear increases. Also, the increasing rotation time has caused more friction between the cutting tools and the cutterhead with the soil, and the wear has increased. The wear decreased with the increase in the penetration rate, despite the increase in the intensity of the conflict between the soil particles and the cutting tools. The results obtained from this research by using a tunnel boring machine laboratory simulator are in good agreement with previous studies.

کلیدواژه‌ها [English]

  • TBM
  • Rotation speed
  • Penetration rate
  • Wear of cutting tools

مراجع

[1]                 Alavi Gharahbagh, E., Mooney, M., Frank, G., Walter, B., Diponio, M., 2013. “Periodic inspection of gauge cutter wear on EPB TBMs using cone penetration testing". Tunnelling and underground space technology, pp. 279-286.
[2]                 Barzegari, G., Uromeihy, A., Zhao, J. 2015."Parametric study of soil abrasivity for predicting wear issue in TBM tunneling projects". Tunnelling and Underground Space Technology, pp. 43-57.
[3]                 Amoun, S., Shahriyar, K., Sharifzade, M., Azali, S., 2015. “Evaluation of wear abrasion tools in mechanized tunneling in soft grounds - case study: north - south section tunnel of Tehran metro line 7. Tunneling & Underground Space Engineering. pp. 233-246
[4]                 Zum Gahr, H.1987.Microstructure and wear of materials, Vol.10.
[5]                 Barzegari, G., Uromeihy, A., Zhao, J. 2013. "A newly developed soil abrasion testing method for tunnelling using shield machines". Quarterly Journal of Engineering Geology and Hydrogeology, pp. 63-74.
[6]                 Küpferle, J., et al., "Influence of the slurry-stabilized tunnel face on shield TBM tool wear regarding the soil mechanical changes–Experimental evidence of changes in the tribological system", Tunnelling and Underground Space Technology, Vol. 74, pp. 206-216,  (2018).
[7]                 Düllmann, J., "Ingenieurgeologische untersuchungen zur optimierung von Leistungs-und verschleißprognosen bei hydroschildvortrieben im lockergestein",(2014).
[8]                 Salazar, C., Todro, C., Bosio, F., Bassini, E., 2018. "A new test device for the study of metal wear in conditioned granular soil used in EPB shield tunneling". Tunnelling and Underground Space Technology, pp. 212-221.
[9]                 Kohler, M., Maidl, U., Martak, L., 2011. "Abrasiveness and tool wear in shield tunnelling in soil". Abrasivit/itund Werkzeugversc-hleiBbeim Schildvortriebim Lockergestein, pp. 36-54.
[10]             Thuro, K., Käsling, H., 2009. "Classification of the abrasiveness of soil and rock". Geomechanics and Tunnelling". pp. 179-188.
[11]             Barzegari, Gh., Oromiehei, A., 2012. "Evaluation of soil abrasiveness in mechanized tunneling with special attitude to the Tabriz metro line1". Engineering Geology, Vol. 5, pp. 41-58.
[12]             Alavi Gharahbagh, E., Rostami, J., Palomio, AM., 2011. "New soil abrasion testing method for soft ground tunneling applications". Tunnelling and Underground Space Technology, pp. 604-613.
[13]             Nilsen, B., Dahl, F., Holzhauser, J., Raleigh, P,2007. "New test methodology for estimating the abrasiveness of soils for TBM tunneling". in Proceedings of the rapid excavation and tunneling conference (RETC).
[14]             Nilsen, B., Dahl, FE., Holzhauser, J., Raleigh, P., 2007. "Abrasivity of soils in TBM tunnelling". Tunnels & Tunnelling International.
[15]             Thuro, K., Singer, J., Kasling, H., Bauer, M., 2007. "Determining abrasivity with the LCPC test". in st Canada-US Rock Mechanics Symposium. American Rock Mechanics Association.
[16]             Thuro, K., Singer, J., Kasling, H., Bauer, M., 2004. "Soil abrasivity assessment using the LCPC testing device". Felsbau, pp. 37-45.
[17]             Alavi Gharahbagh, E., Rostami, J., Talebi, K., 2014. "Experimental study of the effect of conditioning on abrasive wear and torque requirement of full-face tunneling machines". Tunnelling and Underground Space Technology, pp. 127-136.
[18]             Rostami, J., Alavi Gharabagh, E., Palomino, AM., Mosleh, M., 2012. "Development of soil abrasivity testing for soft ground tunneling using shield machines".  Tunnelling and Underground Space Technology, pp. 245-256.
[19]             Jakobsen, P., Langmaack, L., Dahl, F., Breivik, T., 2012. "Predicting the abrasivity of in-situ like soils". Tunnels and Tunnelling International, pp.  41-44.
[20]             Jakobsen, P. Lohne, J., 2013. "Challenges of methods and approaches for estimating soil abrasivity in soft ground TBM tunneling". Wear, pp. 166-173.
[21]             Küpferle, J., Rottger, A., Thesien, W., Alber, M., 2016. "The RUB Tunneling Device–A newly developed test method to analyze and determine the wear of excavation tools in soils". Tunnelling and Underground Space Technology, pp. 1-6.
[22]             Jakobsen, P. D., Hamzaban, M. T., Rish Sefid Mohammadi, N., 2020. "The effect of the particle size distribution curve on the abrasivity of non-cohesive soils in LCPC test". Tunnelling and Underground Space Technology, Vol. 105.
[23]             Lee, H., Kim, D., Shin, D., Oh J., Choi, H., 2022. "Effect of foam conditioning on performance of EPB shield tunnelling through laboratory excavation test". Transportation Geotechnics, Vol. 32.
[24]             Chen, Z., Bezuijen, A., Fang, Y., Wang, K., Deng, R., 2022. "Experimental study and field validation on soil clogging of EPB shields in completely decomposed granite". Tunnelling and Underground Space Technology, Vol. 120.
[25]             Jakobsen, P.D., Langmaack, L., Dahl, F., Breivik, T., 2013b. "Development of the Soft Ground Abrasion Tester (SGAT) to predict TBM tool wear, torque and thrust". Tunnelling and Underground Space Technology, Vol. 38, pp. 398-408.
[26]             Wei, Y., Zheng, X., Su, F., Li, M., Li, F., Yang, Y., 2019. "Evaluation of cutting tool wear of earth pressure balance shield in granular soil based on laboratory test”. Journal of Testing and Evaluation, Vol. 47, pp. 927-941
[27]             Park, B., Lee, C., Choi, S.W., Kang, T., Chang, s., 2021. "Discrete-element analysis of the excavation performance of an EPB shield TBM under different operating conditions". Applied Sciences, Vol. 11.
[28]             ASTM D422-63, "Standard Test Method for Particle-Size Analysis of Soils", ASTM International, West Conshohocken, PA, (2007).

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سابقه مقاله

  • تاریخ دریافت: 03 مرداد 1401
  • تاریخ بازنگری: 15 مهر 1401
  • تاریخ پذیرش: 13 آذر 1401

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