Engineering Geology

Engineering Geology

Investigation of geomechanical properties of rock units of the eastern tunnel of Pervadeh Tabas coal mine and presenting experimental relationship

Authors
Mohadeseh Sadeghi 1
naser Hafezi Moghads 1
Mohammad Ghafoori 1
Mehrdad Amiri 1
Ali Bashari 2
1 Ferdowsi University Of Mashhad
2 Tabas Coal Company
10.22034/JEG.2022.16.2.1016553
Abstract
The design of underground or terrestrial structures on the rock bed depends on the physical and mechanical properties. Considering the mining method in Tabas coal mine extraction method is long and destructive, the evaluation of the geomechanical properties of the rocks is more necessary. In this research, the characteristics of the rock units of the eastern tunnel No. 3 of Tabas coal Pervadeh mine were investigated. In this study, 3 samples of shale, sandstone and mudstone were examined. Considering the importance of the subject in this research, new experimental relations have been proposed, and their application shows desirable results. In order to obtain geomechanical characteristics and empirical relationships, physical tests such as porosity, water absorption percentage, unit volume weight, and mechanical properties such as uniaxial compressive strength, point load index, Brazilian tensile strength, direct cutting test, durability and brittleness index were carried out. To achieve the desired objective, the most appropriate relationships are presented using the regression method. Statistical analysis shows good correlation between different parameters in shale, sandstone and mudstone samples.
Keywords
physical and mechanical properties
shale
Sandstone
mudstone
coal tunnel
Aggson, J. R., & Curran, J. 1978. Coal mine ground control problems associated with a high horizontal stress field. Society of Mining Engineers of AIME.
Ahmadi khounsaraki, V., Uromeihy, A., Nikudel, M. R., & Amiri, M. 2024. Angouran mine access tunnel stability assessment using the experimental classification method and fuzzy hierarchical analysis (FAHP). New Findings in Applied Geology. doi: 10.22084/nfag.2023.27215.1542.
Anon, 1979 Classification of rocks and soils for engineering geological mapping: Bulletin of the International Association of Engineering Geology, 19, pp. 364 – 371.
Azarafza, M., Ghazifard, A., Akgün, H., Asghari-Kaljahi, E, 2019. Geotechnical characteristics and empirical geo-engineering relations of the South Pars Zone marls, Iran, Geomechanics and Engineering, An International Journal, Techno press, 19(5), 393-405.
Bell, F. G. 1992. An investigation of a site in Coal Measures for brickmaking materials: an illustration of procedures. Engineering Geology, 32(1-2), 39-52.
Bell, F. G. 1992. Salt mining and associated subsidence in mid-Cheshire, England, and its influence on planning. Bulletin of the Association of Engineering Geologists, 29(4), 371-386.
Bell, F. G. (2013). Engineering properties of soils and rocks. Elsevier.
Cargill, J.S., Shakoor, A., 1990. Evaluation of empirical methods for measuring the uniaxial compressive strength. Int. J. Rock Mech. Min. Sci. 27, 495–503.
Cicek, S, 2020, Adaptation of Coal Mine Floor Rating -CMFR- to Eastern U.S. Coal Mines, Thesis submitted to the Benjamin M. Statler College of Engineering and Mineral Resources at West Virginia University in partial fulfillment of their querulents for the degree of Master of Science.
Folk, R. L. 1962. Spectral subdivision of limestone types. In W. E. Ham (ed.), Classification of Carbonate Rocks. Am. Assoc. Petr. Geologists, Memoir l, 62-84.
Ghobadi, M. H., Amiri, M., Aliani, F, 2020. The study of relationship weathering, mineralogical and texture of peridotite rocks with engineering geological properties (Case study: peridotite Harsin city, Kermanshah province). New Findings in Applied Geology, 14(27), 43-54.
Ghobadi, M. H., Amiri, M., Aliani, F. 2020. The study of engineering geological properties of peridotites in Harsin, Kermanshah province (A case study). Journal of Engineering Geology. 2020; 14 (1):105-132.
Ghobadi, M., Amiri, M., Rasouli Farah, M, 2021. The study of geotechnical properties of Qom formation sandstones and their using as borrow material (case study: Latgah village, northern Hamedan). New Findings in Applied Geology, 15(29), 55-70.
Hebib R., Belhai, D. Alloul, B. 2017. “Estimation of uniaxial compressive strength of North Algeria sedimentary rocks using density, porosity, and Schmidt hardness”, Arab. J. Geosci. 10, p. 383.
ISRM, 1981 (b). “Suggested Methods. Rock characterization testing and monitoring”, In: Brown ET, (Eds.) Oxford: Pergamon Press.
-ISRM, 1981. “Basic geotechnical description of rock masses, International Society of rock mechanics Commision on the classification of rock and masses”. Int Rock Mech Min Sci Geotech, Vol. 18: 85-110.
ISRM, 2007. “The Complete ISRM, Suggested Methods for Rock characterization testing and monitoring, International Society of rock mechanics.
Jamshidi, A., Nikudel, M.R., Khamehchiyan, M., Sahamieh, R.Z., Abdi, Y., 2016. A correlation between P-wave velocity and Schmidt hardness with mechanical properties of travertine building stones. Arab. J. Geocsi. 9 (10), 568.
Kahraman S., 2001, "Evaluation of simple methods for assessing the uniaxial compressive strength of rock", Int. J. Rock Mech. Min. Sci. Vol. 38, pp 981-994.
Kılıc, A. and Teymen, A. 2008. Determination of mechanical properties of rocks using simple methods. Bull Eng. Geol. Environ., 67: 237–244.
Klemetti, T., Van Dyke, M. E., Compton, C. C., & Tulu, I. 2020. Insights into the relationships among the roof, rib, floor and pillars of underground coal mines. Mining, Metallurgy and Exploration.
Li, X., Wang, E., Li, Z., Liu, Z., Song, D., & Qiu, L. 2016a. Rock burst monitoring by integrated microseismic and electromagnetic radiation methods. Rock Mechanics and Rock Engineering, 49(11):4393-4406.
Li, Z.-l., Dou, L.-m., Cai, W., Wang, G.-f., Ding, Y.-l., & Kong, Y. 2016 b. Roadway stagger layout for effective control of gob-side rock bursts in the longwall mining of a thick coal seam. Rock Mechanics and Rock Engineering, 49(2):621-629.
Liu, S., Bai, J., Wang, X., Yan, S., & Zhao, J. 2021. Field and numerical study on deformation and failure characteristics of deep high-stress main roadway in Dongpang coal mine. Sustainability, 13(15), 8507.
Morales, T., Uribe-Etxebarria, G., Uriarte, J.A., de Valderrama, I.F., 2004. Probabilistic slope analysis state of play. Eng. Geol. 71, 343–362.
Nargan, T., Kucuk, K., Deliormanli, A., Saydam, S., & Koca, M. Y. 2012. Ground control for underground evaporite mine in Turkey. In Mining Methods (eds: T Onargan) pp 33-46.
Rahimi Shahid, M., Amiri, M., lashkaripour, G., Moradi, S, 2022. The estimation of Hamedan limestone brittleness index using point load index and porosity test. Geopersia, 12(2), 331-352.
Ronmar, C. 2016. Correlation of rock strength between uniaxial compressive, Brazilian and point load tests: a laboratory study.
Salimi, A., Rostami, J., Moormann, C., & Hassanpour, J. 2022. Introducing tree-based-regression models for prediction of hard rock TBM performance with consideration of rock type. Rock Mechanics and Rock Engineering, 55(8), 4869-4891.
Shalabi, F.I., Cording, E.J., Al-Hattamleh, O.H., 2007. Estimation of rock engineering properties
Taylor, R. (1988). Coal measures mudrocks: composition, classification and weathering processes. Quarterly Journal of Engineering Geology and Hydrogeology, 21(1):5-99.
Using hardness tests. Eng. Geol. 90, 138–147.
Wang, H., He, M., Zhao, J., Zhang, Y., & Yang, B. 2023. Cutting energy characteristics for brittleness evaluation of rock using digital drilling method. Engineering Geology, 319, 107099.
Xiao, W., Chen, W., & Deng, X. 2021. Coupling and coordination of coal mining intensity and social-ecological resilience in China. Ecological Indicators, 131, 108167.
Xin-le, Y. A. N. G., & Yong-li, Z. H. A. N. G. 2008. Experimental study of effect of temperature on coal gas permeability under gas-solid coupling. 地质力学学报, 14(4), 374-380.
Zhang, S., Nie, W., Guo, C., Peng, H., Ma, Q., Xu, C., ... & Liu, Q. 2021. Optimization of spray dust suppression device in return air tunnel of a coal mine based on CFD technology. Building and Environment, 203, 108059.