Hrinov V.G., Khorolskyi A.A., Vynohradov Yu.O. Engineering aspects of the mine working development in difficult hydrogeological conditions

Details

Parent Category: Geo-Technical Mechanics, 2019

Category: Geo-Technical Mechanics, 2019, Issue 149

Geoteh. meh., 2019, 149, 132-141

https://doi.org/10.15407/geotm2019.149.132

 ENGINEERING ASPECTS OF THE MINE WORKING  DEVELOPMENT IN DIFFICULT HYDROGEOLOGICAL CONDITIONS

¹Hrinov V.G., ¹Khorolskyi A.A., ¹Vynohradov Yu.O.

¹Institute for Physics of Mining Processes of  NAS of Ukraine

UDC 622.031.1:622.3

Language: Ukrainian

Annotation.

In the article, a new approach to identification of optimal parameters for the process of support setting in the mine in difficult hydrogeological conditions is described. It is established that development of the support setting technologies consists in determination of a set of interrelated in time and space processes of manufacture, transportation, construction of temporary and permanent supports. In the article, a model is proposed for searching an optimal type of supports in terms of minimization of costs for their setting and maintenance in the workings. The idea lies in presentation of stages of the support setting in the form of a network model and appliance of algorithms for dynamic programming for the process optimization at its each intermediate stage. This approach allows to transit from the variety of factors (by its nature) to the priority key factors affecting the efficiency of the process. In this way, optimization of parameters for the support setting process is achieved. Particular attention was focused on studying the mechanisms of massif behavior in difficult hydrogeological conditions. Depending on the groundwater type and manifestation, different assessment criteria are taken into account, namely: water inflow, filtration, water penetration, etc. By basing on understanding of the rock mass hydrogeological characteristics, it is possible to analyze feasibility of using this or that type of supports with taking into account auxiliary stages of their setting. And, on the contrary, by based on the known type of supports, one can forecast behavior of the rock mass. Thus, the problem of providing stability for the working supports in difficult hydrogeological conditions is included into the class of dynamic programming problems and is associated with the study of technological aspects of the mining processes physics. A characteristic feature of this problem is existence of an inverse relationship between the support setting technology and the mining-and-geological conditions when hydrogeological characteristics of the massif affect the technology, and vice versa. Given the type and nature of the manifestation of water inflow into the mine workings, it is possible to specify priority control factors with varying degrees of “weight”. Application of network models and algorithms of dynamic programming allow optimizing the process of support setting in general and at the intermediate stages. Particular attention was paid to the software development.

Keywords:

parameter optimization, network model, software, hydrogeological characteristics, support setting.

References

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About the authors

Hrinov Volodymyr Herasymovych, Doctor of Technical Sciences (D. Sc.), Professor, Head of laboratory, Institute for Physics of Mining Processes NAS of Ukraine (IPMP, NAS of Ukraine), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Khorolskyi Andrii Oleksandrovych, Candidate of Technical Sciences (Ph. D.), Researcher, Institute for Physics of Mining Processes NAS of Ukraine (IPMP, NAS of Ukraine), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Vynohradov Yurii Oleksiiovych, Candidate of Technical Sciences (Ph. D.), Junior Researcher, Institute for Physics of Mining Processes NAS of Ukraine (IPMP, NAS of Ukraine), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

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