The method of dewatering of excavation fields
(57) Abstract:Usage: the invention relates to mining and can be used in underground mining with sustainable irrigated rocks of the main roof with low filtration properties. The technical result is increased efficiency, faster drying and elimination or significant reduction of the risk of breakthrough of groundwater in the excavation. The essence of the invention: in the excavation field constructed from the surface of vodopadnyaya wells and conduct a preliminary drainage. Then pass the excavation and cut excavation posts at an angle to the longitudinal axes of which are cut drainage excavation post, one of his overcontouring excavations carried out along the projected slotted openings. Parallel to the contour formulation spend drainage production behind the value of the reference pressure from longwall mined drainage excavation post. Of drainage production in the drainage cavity Buryats itself well. Then presecco or leaving a pillar from the exhaust drainage excavation of the post, cut the split output. 2 C.p. f-crystals, 3 ill. The invention against the m mineral deposits with sustainable irrigated rocks of the main roof with low filtration properties.Known Kontorovich-ahead-of-way drainage excavation fields, including at the level of the split furnace or at some distance from it parallel to the roadway main directions of advanced drainage generation, followed by podvigina bottom for drainage Naugolnykh Sands Buryats inclined forward well at a distance equal to 25-50 m apart, set between knock-in filters.Drainage excavation fields in a known manner in the context of sustainable water formations of the main roof with low filtration properties ineffective to start doing cleaning work. Really draining Naugolnykh Sands will improve conditions for the passage of the mine workings, but does not provide the main drainage of the roof, that will be an obstacle for the development of the mining of the pillar of lava, as sludge and the collapse of the main roof will lead to the formation of fractures and intensification of water loss of the overlying rocks, which will threaten the breakthroughs of water and sand in the excavation.Closest to the proposed to the technical essence and the achieved result is a method of dewatering excavation fields, including the facility is the author of the mining of pillars of the first phase of testing, with the length of a lava smaller size of a full landing of the main roof, and the subsequent development stage, the development of the mining of pillars in two stages with the formation of the drainage cavity under steady flooded the roof rocks of the mining of pillars of the first stage, the construction itself of the wells from mining in the drainage cavity, removing water heads and refinement of the pillars of the subsequent stage 
One of the disadvantages of the known solutions is that most of the drained excavation pillar of the first phase of testing becomes once on its longitudinal axis formed drainage cavity and from the cavity removed the pressure of the water. The same disadvantage applies to the extraction columns of the second development stage, as drained are actually only rocks from the mining of pillars, while from the side of the pillar, or the boundaries of the extraction field, the drying is conducted only by drilling dewatering wells, which is insufficient in terms of sustainable water formations of the main roof with low filtration properties. Thus, the beginning of a longwall pillar of any stage is the most dangerous from the point of view of a breakthrough groundwater from the roof, which is confirmed by practically and treatment of the faces, the development of mining activities, leading to the loss of mining equipment and failure for a long time entire sections of a mine field.The invention consists in that the angle between longitudinal axes cut excavation pillars subsequent stage cut drainage excavation post, one of overcontouring workings of which are performed along the slotted openings of the mining of pillars subsequent stage, parallel to the contour develop drainage, excavation and post spend drainage production, which cut behind the value of the reference pressure from longwall mined drainage excavation pillar, rising well into the drainage cavity Buryats from the drainage generation, presecco, or separation from the waste land drainage excavation of the post, cut split production of the mining of pillars subsequent stage.In addition, drainage, excavation and post cut at right angles to the longitudinal axis of the mining of pillars subsequent stage.In addition, split production of the mining of pillars subsequent stage is cut in the zone of established rock pressure collapsed rocks from podvigina lava drainage excavation post.
the longitudinal axis of the post, vodopadnyaya wells 16. When mining drainage, excavation and post 10 under sustainable irrigated rocks 17 main roof form a drainage cavity 18 and lead from her pumping water through vodopadnyaya wells 16. Due to the fact that the rocks of the main roof 17 have low filtration properties of the drainage generation 14 in drainage palasad roof in these conditions. After podvigina lava 15 drainage excavation of pole 10 presecco, or if you do not allow mining and geological conditions, leaving a pillar of minerals (not shown) of a width of 7-10 m are split production 12. In unstable conditions the immediate wall rock split formulation preferably take place in the zone of established rock pressure lava 15 drainage excavation of pole 10, which is for example for the conditions of Moscow coal 30-70 meters To the most favorable of a longwall pillars subsequent stages 3, 4, 5, 6, 7 preferably cut into various widths. For example, extraction columns 3, 5, 7 width smaller size of a full landing of the main roof, and extraction columns 4, 6 length for landing the main roof. Then after a failover drainage excavation of pole 10 and removing the pressure of water from its drainage strip 18, work extraction columns 3, 5, 7, over which in turn also create a drainage cavity, from which pump water through vodopadnyaya well. Then work out located between extraction columns 4 and 6. 1. The METHOD of DEWATERING of EXCAVATION FIELDS, including the construction with the surface of a dewatering with whom and testing with the length of a lava of magnitude less than the full landing of the main roof and the subsequent development stage, mining the mining of pillars in two stages with the formation of the drainage cavity under steady flooded the roof rocks of the mining of pillars of the first stage, the construction itself of the wells from mining in the drainage cavity, removing water heads, cutting split workings and development of the mining of pillars subsequent stage, wherein the angle between longitudinal axes cut excavation pillars subsequent stage cut drainage excavation post, one of overcontouring workings of which are performed along the slotted openings of the mining of pillars subsequent stage, parallel to the contour develop drainage, excavation and post spend drain output which cut behind the value of the reference pressure from longwall mined drainage excavation pillar, rising well into the drainage cavity Buryats from drain output, and split production of the mining of pillars subsequent stage cut presecco or leaving a pillar from the exhaust drainage excavation post.2. The method according to p. 1, characterized in that the drain extraction column cut at a right angle to the longitudinal axis of the mining of pillars subsequent stage.
FIELD: mining industry.
SUBSTANCE: invention comprises following scheme. Oil is produced from producing wells. Potassium salts are extracted from mines and processed. Solutions are pumped into deep lying porous rock formations preliminarily revealed between oil-bearing and potassium formations. Those porous rock formations are chosen which are located below underlying stone salt. Pumping of solutions is effected through injecting wells until pressure drop in oil-bearing formation is compensated to a value sufficient to prevent deformation in potassium formations, this value being calculated using special math formula. Oil formation is then run while maintaining compensating pressure in chosen porous formation.
EFFECT: significantly reduced environmental loading and increased safety of mining operations.
3 cl, 1 dwg
FIELD: mining industry.
SUBSTANCE: method includes driving of layer transporting and ventilation mines along soil and ceiling of bed, in massive and in extracted space, cutting of cleaning mines in cross-section of bed at angle of 27°, mechanized delivery of coal along bed mines to coal furnaces and vertical dropping of coal to furnaces. Extraction of slanted transverse bed is performed along bed diagonals having direction to horizon at angle of 27°, to provide for free sliding of coal without degradation. Delivery of coal from cleaning mine placed at angle of 60° to layer mine, to back field mine is performed by self-delivery from any place of extraction field along layer mine, field coal-lowering mine and field slanting coal furnace, being at angle of 27° to horizon. Field slanted coal furnaces are placed at distance from one another along 20 m normal. Field coal mines in form of fans of three mines are connected on field slanted coal furnaces at distance of fan start from one another of 60 m with output of mines ends to each layer mine of group of three above-lying slanted-transverse layers for whole diagonal length of extraction field at distance between mines outputs along layer soil of 60 m. Ceiling of cleaning mines may be supported without load, utilizing mechanical traction on the side of ventilation furnaces for pressing moveable support tool to layer ceiling.
EFFECT: higher efficiency.
2 cl, 3 dwg
FIELD: mining art, in particular, open-pit mining of mineral resources by high benches.
SUBSTANCE: large-diameter single holes are replaced by a pair of divergent holes of a smaller diameter, in which one hole is always vertical, and the other one is inclined towards the bench; the single holes of the larger diameter are replaced with a pair of divergent bundles of parallel converged holes, in which one bundle is vertical, and the other is inclined towards the bench; the single holes of the larger diameter are replaced with a pair of divergent holes of a smaller diameter, in which one hole is vertical, and the other is inclined towards the bench and positioned in the vertical plane parallel with the first one and distant from it by 1-2 hole diameters; the single holes of the larger diameter are replaced by a pair of divergent bundles of parallel converging holes, in which one bundle is vertical, and the other is inclined towards the bench and positioned in the vertical plane parallel with the first one and distant from it by 1-2 hole diameters.
EFFECT: enhanced efficiency of blasting of the benches.
7 cl, 6 dwg
FIELD: mining industry.
SUBSTANCE: method for extraction and underground use of coal includes cleaning extraction and dumping of coal, fixing and controlling ceiling and transporting coal along face to drift. On the drift, in moveable generator, coal is pulverized for intensive burning with use of jets in water boiler firebox, where high temperature of steam is achieved (about 1400 C°), enough for decomposition of water on oxygen and hydrogen. These are separated, then oxygen is fed back to jets, and hydrogen is outputted along pipes and hoses in drifts and shaft. Variants of underground generator for realization of this method are provided. Also provided is method for extraction of disturbed coal beds by short faces. It includes extraction and dumping of coal on face conveyor, fixing of ceiling behind combine, moving conveyor line and support sections in direction of cleaning face displacement, control of ceiling with destruction and partial filling. Extraction of coal is performed in short curvilinear faces by long stripes along bed, in straight drive without forwarding drifts, with preservation and reuse of ventilation and conveyor drifts, equipped with mounting manipulator robots, with fixing behind combine by automatically operating support deflectors without unloading and displacing sections in area of coal extraction. Extraction and transporting of coal is performed by fast one-drum combine and curvilinear reloading conveyor, supplying coal to drift conveyor or immediately to underground gas or energy generator placed immediately on drift. Also proposed is face scraper conveyor for realization of said method, wherein pans are made with step along front face profile, greater, than along back one, while forming common line curved towards face with constant curvature. Also proposed is a method for controlling complex for unmanned coal extraction.
EFFECT: higher efficiency, effectiveness, broader functional capabilities.
8 cl, 5 dwg
FIELD: medical engineering.
SUBSTANCE: method involves tunneling horizontal level working with heading machine on earth surface in the base of old salt spoil heap of salt mine. Steel arch support is used for strengthening the level working. The arches are mounted 1 m far from each other. Pit props and cappings of neighboring arches are connected with ties. Lagging of roof and sides of the working is carried out and dressed space is filled with rubble of lick salt pieces. Then, perforated tubes are laid in soil and covered with crushed salt. Halochamber air is saturated with salt particles by pumping air through the tubes to make sodium chloride concentration in the halochamber air be not less than 0.5 mg/m3.
EFFECT: reduced labor resource consumption.
FIELD: mining industry.
SUBSTANCE: method includes determining gas potential of extracted bed in limits of extraction area and monitoring of relative gas-escape from extracted bed and of extracted coal with withdrawal of lava from mounting chamber. Value of primary step of main ceiling destruction is set on basis of distance from mounting chamber to point of minimal gas-kinetic coefficient values closest to it, as which coefficient relation of relative gas-escape to bed gas potential bed is taken. Value of destruction step is determined from mathematical relation, considering distance from mounting chamber to closest point of said coefficient minimal values. It is possible to construct a graph of dependence of gas-kinetic coefficient from distance between face and mounting chamber. Portions of extraction field, wherein periodical changes of gas-kinetic coefficient are observed, are related to areas of geological irregularities influence. On basis of decrease of amplitude of maximal oscillations of gas-kinetic coefficient displacement of face to exit of geological irregularities area is detected, and on basis of increase - entrance therein.
EFFECT: higher precision, higher speed of operation.
2 cl, 3 dwg
FIELD: mining industry.
SUBSTANCE: method includes use of screw-drilling machine for driving of several first ventilation shafts in ore body and driving several second shafts, while second and each second shaft crosses, at least, one matching first shaft, forming first support walls, supporting ceiling. First supporting ceilings consist of ore body zones between neighboring second shafts, each first support wall has portion of at least one first shaft, passing horizontally through it. Horizontal channels are formed, each of which is placed transversely to matching second shaft between appropriate portions of first shaft, formed in adjacent support walls, for forming of group of continuous ventilation shafts. Second shafts are filled for forming second supporting walls, supporting well ceiling, and first supporting walls are extracted. First ventilation shafts can be made parallel to each other. Second shafts may be directed perpendicularly relatively to first ventilation shafts. In ore body air-outlet and air-inlet ventilation mines can be formed, placed at distance from each other along horizontal line, while first or each first ventilation shaft passes through portion of ore body between air-inlet and air-outlet ventilation mines. Driving of second or each second shaft can be performed by cutting machine, or by drilling or explosive mining.
EFFECT: higher efficiency.
7 cl, 11 dwg