Науковий вісник НГУ

Study of influence of explosion on deep layers construction intensity by means of object-oriented programming

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Category: Geotechnical and mining mechanical engineering, machine building

Last Updated on 04 June 2015

Published on 29 March 2015

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Authors:

A.N. Royenko, Dr. Sci. (Tech.), Professor, State Higher Educational Institution “National Mining University”, Professor of the Department of Construction, Geotechnics and Geomechanics, Dnipropetrovsk, Ukraine

S.A. Kharin, Dr. Sci. (Tech.), Associate Professor, Regional Municipal Higher Educational Institution “Institute of Business “Strategy”, Professor of the Department of Computer and Informational Technologies, Zhovti Vody, Ukraine

Abstract:

Purpose. To investigate the influence of the following factors of explosion on the extended horizontal workings construction speed based on software development: explosive efficiency ratio, fill factor of holes, perimeter blasting technique.

Methodology. We have implemented a comprehensive approach that includes the synthesis and analysis of literary sources, theoretical studies based on the methods of mathematical modeling, use of the programming language Java.

Findings. The software has been developed for the research. We have studied organizational and technological parameters of the extended horizontal workings driving under various conditions. We have determined the nature of change of pace of mining depending on varying values of the explosive efficiency ratio, the fill factor of holes, the structure of rocks, and use of the perimeter blasting technique for workings of various section shape.

Originality. We have found that in general the dependence of the driving speed on the explosive efficiency ratio and fill factor of holes is characterized by linear functions. The dependence of cropper holes placement options on the coefficient of rock strength for conditions with f =10–20 has been determined. The results have shown that in this case the distance between the holes and the line of least resistance, depending on the coefficient of rock strength are described by logarithmic and exponential functions respectively. We have presented the results of studies of the perimeter blasting technique effect on the driving speed under different conditions: driving speed drops by 1.1–1.24 times, while the more intense reduction in speed with increasing penetration rate f can be explained by the reduced performance of the drilling equipment.

Practical value. We have suggested the program of calculation of organizational and technological parameters of underground development with respect to various factors of blasting that allows us to automate the design process for deep mining.

References:

1. Frolov, A.A. (2013), “Validation of rational distances between cylindrical charges during their blasting in rock mass”, Visti Donetskoho Hirnychoho Instytutu, no. 1 (32), pp. 298–303.

 Фролов А.А. Обоснование рациональных расстояний между цилиндрическими зарядами при их взрывании в скальном массиве горных пород / А.А. Фролов // Вісті Донецького гірничого інституту. – 2013. – №1 (32). – С. 298–303.

2. Shashenko, A.N. and Solodyankin, A.V. (2007), “Criteria of estimation of stability of rock of floor of the main working”, Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, no. 1, pp. 44–49.

 Шашенко А.Н. Критерии оценки устойчивости пород почвы горных выработок / А.Н. Шашенко, А.В. Солодянкин // Науковий вісник Національного гірничого університету. – 2007. – № 1. – С. 44–49.

3. Martovytskyi, A.V. (2012), “Substantiation of an effective set of measures aiming increase of mine workings stability in mines owned by Private Joint-Stock Company “DTEK Pavlogradugol”, Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, no. 3, pp. 45–53.

 Мартовицький А.В. Обгрунтування комплексу ефективних заходів з підвищення стійкості виробок шахт ПАТ „ДТЕК Павлоградвугілля“/ А.В. Мартовицький// Науковий вісник Національного гірничого університету. – 2012. – № 3. – С. 45–53.

4. Kalyakin, S.A., Shkumatov, A.N. and Labinskiy, K.N. (2013), “Control of explosion cracking ability of elongated blast-hole charges of explosive”, Visti Donetskoho Hirnychoho Instytutu, no. 1 (32), pp. 157–164.

 Калякин С.А. Управление разрушающим действием взрыва удлиненного шпурового заряда взрывчатого вещества / С.А. Калякин, А.Н. Шкуматов, К.Н. Лабинский // Вісті Донецького гірничого інституту. – 2013. – №1 (32). – С. 157–164.

5. Lеvit, V.V. and Gorelkin, A.А. (2012), “Drilling of vertical shafts as a promisingdirection in mine building”, Transactions of Kremenchuk Mykhailo Ostrohradskyi National University, vol. 2, no. 73, pp. 104–110.

 Левит В.В. Бурение шахтных стволов как перспективное направление в шахтном строительстве / В.В. Левит, А.А. Горелкин // Вісник КрНУ. – 2012. – Вип. 2/2012 (73). – C. 104–110.

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