ENSURED SUSTAINABILITY OF THE PREPARATORY ROADWAYS AT THE STAGES OF THEIR MINING AND EXPLOITATION

Details

Parent Category: Geo-Technical Mechanics, 2015

Category: Geo-Technical Mechanics, 2015, Issue 121

UDC 622.268.9: (430.1)

Authors:

Tsikra A.A., Ph. D. (Tech.),

Averkin D.I., M.S (Tech.) («Minova Ukraine» LTD),

Oprisko Y. S., M.S (Tech.),

Zaderiy V.V., M.S (Tech.) (IGTM NAN of Ukraine)

Abstract.

The paper presents findings on preparatory roadway state and peculiarities of ensuring sustainability at the initial stages of the roadways mining and exploitation in Donbass mines with complex geological conditions.

The research has stated that bolt-and-arch support twice reduces (to frame supports) a period of intensive roof-to-floor displacement. However, the problem still remains while developing the roadways in unstable water-saturated rocks.

The paper shows comparative characteristics of the roadways state in the process of their mining with and without backfilling of the fastened spaces. It is shown that mechanized backfilling by the fast-hardening mixtures not only increases bearing capacity of the surrounding rock massif due to the timely reaction of the arch support to the loads, but also allows blocking water and gas flowing into the roadway from the overlying rocks.

It is recommended to backfill fastened spaces in the roadway by TECHART packages of dry cement and mineral mixture produced by the Minowa Ukraine Ltd., usage of which was successfully tested in the mines of the “Makeevugol” state enterprise.

Keywords:

bolt-and-arch support, backfilling of the fastened space in the roadway.

References:

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About the authors:

Tsikra Alexander Anatolyevich, Candidate of Technical Sciences (Ph.D), Technical director of «Minova Ukraine» LTD, Donetsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Averkin Dmitry Ivanovich, Master of Science, Deputy Director of «Minova Ukraine» LTD, Donetsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Opryshko Yury Sergeevich, chief technologist IGTM, Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Zaderiy Vladimir Vasilyevich, Engineer in IGTM, Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

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