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Substantiating parameters of stratification cavities formation in the roof rocks during underground coal gasification
(National Mining University, 2016-03-30)
Purpose. Underground coal gasification, as a complex and technically difficult process, should be supported in many aspects by computer simulations or analytical calculations of rock mass behavior. However, little is known ...
Research into stress-strain state of reinforced marginal massif of extraction mine working by combined anchoring system
(National Mining University, 2016-03-30)
Purpose. Justification of conditions for reusal of extraction mine working by maintaining system parameters of resin-grouted and rope roof bolts.
Methods. Wide range of investigation of stress-strain state of coal-bearing ...
Multi-purpose sorbent production by coal ash recycling
(National Mining University, 2016-03-30)
Purpose. The main purpose of the work is to increase adsorption capacity of the carbon-containing sorbent.
Methods. Adsorption and filtration processes were studied with the aid of chemical and physical methods, plotting ...
Increasing stability of underground mine workings by forming new geotechnical properties of adjoining layers via roller compaction
(2016-03-30)
Purpose. To create a model reproducing the process of forming geotechnical properties of the rock massif adjoining circuit of underground excavation by roller compaction method incorporating hardening and creating the zone ...
Destruction of rocks by the non-explosive depleting compounds during mining
(National Mining University, 2016-03-30)
Purpose. Justification of the possibility of non-explosive coherent rocks destruction while carrying out stratal underground mine workings on the basis of the set of dependencies describing changes in physical and mechanical ...
Numerical modelling of massif zonal structuring around underground working
(National Mining University, 2016-09-30)
Purpose. To identify indicators of massif zonal structuring around underground working using numerical modeling techniques.
Methods. Research into massif zonal structuring was performed using finite element method and ...
State analysis of overworked and underworked parting between contiguous seams and during their simultaneous top-down mining
(National Mining University, 2016-06-30)
Purpose. Investigating conditions of conducting and maintaining excavation works during mining of seam . Evaluating probability of parting rocks stability loss in terms of top-down mining of two contiguous seams in a ...
Technological complex for production, transportation and storage of gas from the offshore gas and gas hydrates fields
(National Mining University, 2016-09-30)
Purpose. Substantiation and development of schematics acceptable for the existing technological methods of natural gas production and transportation from the offshore fields of gas or gas hydrates. Improvement of their ...
Designing cutting tools of mining machines for coal auger mining
(National Mining University, 2016-09-30)
Purpose. The need for new technologies and techniques for the efficient development of thin coal seams.
Methods. Mathematical and experimental modeling of the contact interaction of multipoint cutter with the rock. ...