Gladkaya Ye.V. The coal sudden squeezing danger prognosis basing on physical properties and material composition of the carbonaceous sandstones

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Parent Category: Geo-Technical Mechanics, 2016

Category: Geo-Technical Mechanics, 2016, Issue 127

 

Geoteh. meh. 2016, 127, 177-185

THE COAL SUDDEN SQUEEZING DANGER PROGNOSIS BASING ON PHYSICAL PROPERTIES AND MATERIAL COMPOSITION OF THE CARBONACEOUS SANDSTONES 

¹Gladkaya Ye.V.

¹IPMP NAS of Ukraine 

UDC 622.831.537.86

Abstract. The article deals with the results of research of influence of the physical properties of the main roof sandstone l1Sl21 of coal seam l1 bottomhole during the mining operations in the PJSC "Zasyadko coal mine". As a result of experimental research of physical properties of sandstone it has been found that reducing the amount of water-based component (ΔW <4 %) in the sandstone is observed in the sudden extrusions coal field. Also analysis of the results showed that the change in the amount of hydrogen-containing component ΔW in sandstone is due both to the relative change of the total iron content in it, and its individual compounds defined by Mossbauer spectroscopy. The experimental data were compared with the results of geological and mine surveys, fixing the actual condition of the main overlying and the solid coal seam l1. On the basis of influence patterns of the iron compounds to the amount of hydrogen-containing component in the sandstone, a criterion for the prediction of sudden coal extrusions was grounded and proposed.
Keywords: sudden extrusion of coal, sandstone, the main overlying, iron compounds, hydrogencontaining components. 

REFERENCES

1. Koptikov, V.P., Yuzhanin, I.A., Yevdokimova, V.P., Muravyov, V.M. and Ryzhkov M.F. (2010), Vnezapnye vydavlivaniya uglya: monografiya [Sudden extrusion of coal: monograph], Noulidzh, Donetsk, UA.
2. Bolshinsky, M.I., Lysikov, B.A. and Kaplyuhin, A.A. (2003), Gazodinamicheskiye yavleniya v shakhtakh [Gas-dynamic phenomena in mines], Sevastopol, Veber, 284 p.
3. Kravchenko, A.V (2011), «Geomechanical substantiation criteria forecast sudden extrusions of coal taking into account physical characteristics of the host rocks», Physical and technical problems of mining, vol. 14., pp. 86-92.
4. Starikov, G.P., Gladkaya, E.V., Zavrazhin, V.V. and Kravchenko, A.V. (2007), «The mechanism of destruction of sandstone based of the phase state of quartz and hydrogen component», Physical and technical problems of mining, vol. 10., pp. 13-18.
5. Starikov, G.P., Gladkaya, E.V., Zavrazhin, V.V. and Kravchenko, A.V. (2008), «Prognosis anomalous zones in the sandstone to change the phase state and the amount of hydrogen-containing quartz component», Materials XVIII International Scientific School "Deformation and destruction of materials with defects and dynamic phenomena in rocks and workings.", Tavria National University, Simferopol, UA, pp. 302-304.
6. Medina J.C., Butala S.J., Bartholomew C.H. and Lee M.L. (2000), Fuel, no. 79, p. 89.
7. The method of group account of arguments (MGCA), available at: http://mgua.irtc.org.ua.
8. Proceedings of International Workshop on Inductive Modelling (IWIM 2007) (2007), Czech Technical University, Prague, CH.

About the author:

Gladkaya Elena Viktorovna, Candidate of technical Science (Ph.D.), performing duties of chief of Department of control the state massif , Institute of Physics of Mining Processes the National Academy of Sciences of Ukraine (NASU IPhMP), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

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