TY - JOUR

T1 - Adaptation of the mechanized roof support to changeable rock pressure

AU - Буевич, Владимир Владимирович

AU - Габов, Виктор Васильевич

AU - Задков, Денис Александрович

AU - Васильева, Полина Александровна

N1 - Korovkin Ju.A. Mehanizirovannye krepi ochistnyh zaboev / Pod red. Ju.L. Hudina. - M., Nedra, 1990. - 413 s.: il. 2. Jakobi O. Praktika upravlenija gornym davleniem. Per. s nem. – M.: Nedra, 1987. – 566 s. 3. Dokukin A.V., Korovkin Ju.A., Jakovlev N.I. Mehanizirovannye krepi i ih razvitie. – M.: Nedra, 1984. – 288 s. 4. Friedrich Grawe, Peter Migenda, Schreitausbau fur den Steinkohlenbergbau. Verlag GLUCKAUF. Produktion Stephan Leifeld 5. Klishin V.I. Adaptacija mehanizirovannyh krepej k uslovijam dinamicheskogo nagruzhenija. Novsibirsk. «Nauka», 2002g., - 199s. 6. S.S. Peng, Longwall Mining, 2nd edition, October 2006, 621 pp 7. Patent RU2503816 C1. Gidroficirovannaja krep' s reguliruemym soprotivleniem i rekuperaciej jenergii / V.V. Buevich, V.V. Gabov, O.V. Kabanov; zajavitel' FGBOU VPO “Nacional'nyj mineral'no-syr'evoj universitet “Gornyj”; opubl. 10.01.2014, BI. № 35.

PY - 2015/12

Y1 - 2015/12

N2 - The article discusses the possibility of adapting sections of mechanized roof supports to the variable geological and mining factors dealing with flat seams of medium thickness in longwall complex-mechanized coal face. Adaptation is provided by the rock pressure regulation of the pressure change rate in the piston cavities of hydraulic legs with static work load on the roof support.The proposed technical solution allows separating process regulation function of rock pressure in the roof settling process from the protection function of the shields to be overloaded. Rock pressure regulation is provided by continuous regulation of fluid flow from the piston cavity into the complex hydraulic system which eliminates the sharp pressure drop in the elements of the hydraulic system sections, dynamic loads on the roof support in the regulating process. It also partly transfers potential energy of roof rock settling in the hydraulic system of the complex.

AB - The article discusses the possibility of adapting sections of mechanized roof supports to the variable geological and mining factors dealing with flat seams of medium thickness in longwall complex-mechanized coal face. Adaptation is provided by the rock pressure regulation of the pressure change rate in the piston cavities of hydraulic legs with static work load on the roof support.The proposed technical solution allows separating process regulation function of rock pressure in the roof settling process from the protection function of the shields to be overloaded. Rock pressure regulation is provided by continuous regulation of fluid flow from the piston cavity into the complex hydraulic system which eliminates the sharp pressure drop in the elements of the hydraulic system sections, dynamic loads on the roof support in the regulating process. It also partly transfers potential energy of roof rock settling in the hydraulic system of the complex.

KW - underground mining, longwall face, regulation of rock pressure, shield, jacks, mechanical characteristics, the working resistance, pressure relief valve, the operating mode, energy recuperation

M3 - Article

SP - 11

EP - 15

JO - Eurasian Mining

JF - Eurasian Mining

SN - 2072-0823

IS - 2

ER -