Kusen O.B., Nazymko V.V., Yaitsov O.O. Perfection of construction of frame-anchor fastening of joint resistance

Details

Parent Category: Geo-Technical Mechanics, 2018

Category: Geo-Technical Mechanics, 2018, Issue 141

Geoteh. meh. 2018, 141, 124-133

https://doi.org/10.15407/geotm2018.141.124

PERFECTION OF CONSTRUCTION OF FRAME-ANCHOR FASTENING OF JOINT RESISTANCE

¹Kusen O.B., ²Nazymko V.V., ¹Yaitsov O.O.

¹The Сlosed Joint-Stock Company «Donetskstal» - Metallurgical Factory», ²Institute of Physics of Mining Processes NAS of Ukraine

UDC 622.281.9

Language: Ukrainian

Annotation.

New construction of nodes of connection of frames with the anchors of the combined frame-anchor fastening as the most perspective mean of providing of stability of the extracting working of deep mines working off supplies in difficult mine-geological terms is grounded and developed. The important role of longitudinal wring of the specialtype of the frame fastening for the premature loss of stability and bearing strength of frame, probability of which is multiplied with the increase of transversal section of working and growth of force of mine pressure, is proved.  The longitudinal wring of the specialtype results in the speed-up increase of bending moments which carry out the plastic slanting bend of the specialtype of the frame fastening.  Farther more plastic bend the process of unbending of type at which his crossing with trough-shaped grows into flat is accelerated.  For warning of such unfavorable plastic deformation a new original construction of node of connection of frame with anchors, which multiplies efficiency of the combined frame-anchor fastening, is developed. It is the most perspective mean of providing of stability of the extracting workings in the heavy mine-geological terms of development of mineral deposits.  Construction of node consists of the figured slat which the hook- similar catch is fastened to one flange of the trough-shaped special type of the frame pliable fastening, engulfs this type from the side of working space of the mine working and has opening on other end for the insertion of anchor which is set in a blast-hole and is registered to his walls  by polymeric resin.  Construction of node passed successful industrial verification on the coal mine of m/ m Pokrovskoye.  The longitudinal wring of the specialtype of fastening is prevented as a result, that allowed to shut out his plastic deformations under action of mine pressure to save bearing strength of frames and provide thus stability of the mine working which joins to operating cleansing face and is supported behind him in the area of active changes.

Keywords: mine working, frame-anchor support, stability of workings, specialtype, mine pressure, longitudinal wring, nodes of connection.

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About the authors

Nazymko Victor Victorovych, Doctor of Technical Sciences (D.Sc.), Cheaf Researcher of  Institute of Physics of Mine Processes NAS of Ukraine,  Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Yaytsov Oleksandr Oleksiyovych, Master of Science, Director of the Department, Closed Joint-Stock Company “Donetskstal Metallurgical Plant”, Pokrovsk,  Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Kusen Oleksiy Bogdanovych,Master of Science, Closed Joint Stock Company “Donetskstal Metallurgical Plant”, Pokrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

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