DOI 10.21440/2307-2091-2017-2-47-52 Publication Date 11.07.2017
Assessment of rock mass stability and forecast of development of engineering-geological processes at the Upper-Aliyinsk deposit pdf
M. S. Patrakova
The author considers the problem of studying engineering-geological conditions, estimation of stability of rock massifs, forecast of development of engineering-geological processes on the example of the Upper-Aliyinsk deposit. Optimization of the construction of mining enterprises and the process of mining of minerals requires a substantiated assessment of the engineering-geological conditions (EGC) of mineral deposits at the exploration stage: the separation of the main components of the EGC, the determination of the processing processes, the assessment of the scale of their impact, and the forecasting of mining operations in the development of the deposit. Among the main components that require assessment in engineering and geological studies are geological structure of the massif, structural-tectonic features and fracturing, composition and properties of rocks, development of exogenous geological processes, hydrogeological conditions. The analysis of the engineering-geological conditions of the Upper-Aliyinsk deposit made it possible to identify the most significant components, such as the fracturing of rocks and their strength properties, so the author based the classification on the "classification of rocks by the degree of fracture" VSEGINGEO with some additions caused by the specificity of the object under study. The taxonomic unit for zonation was the engineering-geological sections, the basis of which is the qualitative and quantitative assessment of the degree of fracturing of rocks, the evaluation of the strength properties of rocks and their engineering-geological typification. In engineering-geological zoning, the author distinguished 4 categories in the rock massif with different degrees of stability: I – high stability; II – medium stability; III – low stability; IV – very low stability. The share of very stable breeds is from 44.46 to 61.58 %, stable – from 11.98 to 39.8 %. Breeds of low stability are less common – from 5.56 to 15.74 %. Unstable breeds are extremely rare and their share is 3.97 %. An objective assessment of all the components that make up the engineering-geological conditions of the Upper-Aliyinsk deposit will make it possible to make the most correct and objective forecast.
Keywords: engineering-geological conditions; engineering-geological processes; estimation and forecast; stability of rock massif; degree of fracturing.
REFERENCES
1. Bieniawski Z. T. 1989, Engineering Rock Mass Classifications. A Complete Manual for Engineers and Geologists in Mining, Civil and Petroleum Engineering, Nеw York, 250 p.
2. Bianchi Fasani G., Bozzano F., Cercato M. 2011, The underground cavity network of south-eastern Rome (Italy): an evolutionary geological model oriented to hazard assessment. Bulletin of Engineering Geology and the Environment, vol. 70, no. 4, pp. 533–542.
3. Li Dian-Qing, Zhang J., Phoon Kok-Kwang, Gokceoglu S. 2016, Preface of special issue on probabilistic and soft computing methods for engineering geology. Engineering Geology, vol. 203, pp. 1–2.
4. Gattinoni P., Pizzarotti E. M., Scesi L. 2014, Engineering Geology for Underground Works, Heidelberg, 312 p.
5. Bondarik G. K. 1986, Metodika inzhenerno-geologicheskikh issledovaniy [Technique of engineering-geological research], Moscow, 333 p.
6. Golodkovskaya G. A., Matula M., Shaumyan L. V. 1987, Inzhenerno-geologicheskaya tipizatsiya i izuchenie skal'nykh massivov [Engineering-geological typification and study of rock massifs], Moscow, 272 p.
7. Abaturova I. V. 2011, Otsenka i prognoz inzhenerno-geologicheskikh usloviy mestorozhdeniy tverdykh poleznykh iskopaemykh gorno-skladchatykh oblastey [Estimation and forecast of engineering-geological conditions of deposits of solid minerals of mountain-folded areas], Ekaterinburg, 320 p.
8. Abaturova I. V., Gryaznov O. N. 2009, Otsenka inzhenerno-geologicheskikh usloviy zolotorudnykh mestorozhdeniy Polyarnogo Urala [Assessment of engineering and geological conditions of gold deposits of the Polar Urals]. Izv. vuzov. Gornyy zhurnal [News of the Higher Institutions. Mining Journal], no. 6, pp. 97–106.
9. Abaturova I. V., Petrova I. G., Koroleva I. A., Storozhenko L. A. 2015, Printsipy optimizatsii izucheniya inzhenerno-geologicheskikh usloviy mestorozhdeniy poleznykh iskopaemykh [Principles of optimization of studying the engineering and geological conditions of mineral deposits]. Mezhdunarodnyy nauchno-issledovatel'skiy zhurnal [International Research Journal], no. 11(42), pt. 3, pp. 10–13.
10. Abaturova I. V., Martynenko M. S., Emel'yanova I. A. 2015, Otsenka ekologicheskikh riskov proyavleniya opasnykh dinamicheskikh protsessov pri stroitel'stve gornotekhnicheskikh sooruzheniy na Verkhne-Aliinskom zolotorudnom mestorozhdenii [Assessment of environmental risks of dangerous dynamic processes in the construction of mining structures on the Upper-Aliyinsk gold deposit] Ekologicheskaya bezopasnost' promyshlennykh regionov: konf. (Ekaterinburg, 29–30 iyunya 2015 g.) [Environmental safety of industrial regions: conf. (Ekaterinburg, June 29–30, 2015)], Ekaterinburg, pp. 13–.
11. Abramov B. N. 2016, Verkhne-Aliinskoe zolotorudnoe mestorozhdenie: usloviya formirovaniya, petrokhimicheskie osobennosti porod i rud (Munginskiy rudnyy uzel, Vostochnoe Zabaykal'e) [Upper-Aliyinsk gold deposit: formation conditions, petrochemical features of rocks and ores (Tunginsky ore cluster, Eastern Transbaikalia)]. Litosfera [Litosfera], no. 4, pp. 92–101.
12. Guman O. M., Dubeykovskiy S. G. 1991, Inzhenerno-geologicheskaya tipizatsiya zhelezorudnykh mestorozhdeniy Urala [Engineering-geological typification of iron ore deposits in the Urals]. Inzhenernaya geologiya [Engineering Geology], no. 3, pp. 36–42.
13. Gryaznov O. N. 2015, Prirodno-tekhnicheskie sistemy – universal'nye sistemy vzaimodeystviya inzhenernykh sooruzheniy (ob'ektov) i prirodnoy sredy [Natural-technical systems – universal systems of interaction of engineering structures (objects) and the natural environment]. Izv. UGGU [News of the Ural State Mining University], no. 4(40), pp. 5–10.
14. Gryaznov O. N. 2014, Faktory inzhenerno-geologicheskikh usloviy Urala. Regional'nye geologicheskie faktory [Factors of engineering and geological conditions of the Urals. Regional geological factors]. Izv. UGGU [News of the Ural State Mining University], no. 3(35), pp. 30–50.
15. Martynenko M. S., Storozhenko L. A. 2014, Otsenka stepeni proyavleniya dinamicheskikh protsessov pri stroitel'stve gornotekhnicheskikh sooruzheniy na Verkhne-Aliinskom zolotorudnom mestorozhdenii [Estimation of the degree of manifestation of dynamic processes in the construction of mining facilities at the Upper-Aliyinsk gold deposit]. Ural'skaya gornaya shkola – regionam: Mezhdunar. nauch.-prakt. konf. (28–29 apr. 2014 g.) [Ural Mountain School – to the regions: International scientific-practical conference (28–29 April 2014)], Ekaterinburg, pp. 559–560.
