The method of construction gidrogelatorov array in the developed space in the chamber system development
(57) Abstract:The invention relates to mining and can be used for mining with backfill. The invention improves the quality gidrogelatorov array by reducing its shrinkage when used as an additional backfill material rubber waste. The method of construction of filling the array in the developed space chamber when the development system includes separate transportation Solodov and additional backfill material and placing them in the exhaust chambers. The mined-out space is carried out at separate transportation Solodov and additional backfill material, in this case, initially placed on the soil camera rubber waste, and then erect it hydrosalinity an array of slothdom. 1 Il. The invention relates to the mining industry and can be used in the development of minerals chamber systems with a mined-out space.Known methods of hydrobalance using as backfill material waste ores, for example the moves (Borzakovskiy B. A. , Paulov L. M. Backfilling operations at the Verkhnekamskoe potash mines. - M - Depths. - 1994. - S. 92-101).However, these methods provide significant shrinkage of filling the array and, accordingly, increase hydrosilation works.Closest to the proposed invention is a method of laying-out space in the chamber system development sloping potash seams. C. 1244354, MKI E. 21 F 15/00, publ. in BI 26, 1986). This method provides for separate transportation of the primary and secondary backfill material, and as an additional backfill material used sand.The disadvantage of this method is the difficulty (complexity) of the process of obtaining and placing additional backfill material if there is a substantial shrinkage of the filling material.The technical result of the invention is to improve (increase) the quality of the backfill array by reducing its shrinkage and reduced environmental burden on the environment during the use of rubber waste as an additional backfill material.This technical measuring the development system consists of separate transportation of Solodov and additional backfill material, placing them in the waste cells, and as an additional backfill material use of rubber waste, which are initially placed on the soil chamber, and then erect it hydrosalinity array.As an additional backfill material use of rubber waste, which can be represented, for example, second-hand automobile tires, conveyor belts, air bags, scraps of rubber, seals, etc., While hydrosilation pulp fills all the gaps that exist in the bulk rubber waste, improving the quality of the backfill array.The essence of the method is illustrated in the drawing, which shows a General scheme bookmarks camera.The method is as follows. Initially, additional backfill material, which is used as rubber waste 1, is transported to put the camera first on the trunk, and then along the horizontal mine workings, for example, on the truck tractor and placed in bulk 2 in the waste chamber 3.1 waste on the ground lay the camera unloaded in bulk without stacking. In the presence of the th, as the required amount of rubber waste will be placed in the chamber 3, through the hole 4 in the seam parting in laying the camera serves the pulp and namyvayut hydrosalinity salt 5 array.However, the array only from rubber waste has a large number of voids due to their complex volume and loose styling. As a consequence, such an array will have a large shrinkage, which would entail a reduction in the strength of the backfill array.Thus, to realize the benefits of rubber waste as an additional backfill material, it is necessary that the waste was completely surrounded by filling the array. This condition is most easily implemented when using as primary backfill material slurry from slothdom. The slurry fills the voids between the separate rubber products, and voids in the products.Rubber waste is used as an additional backfill material, durable, mine when the temperature is not subject to disintegration, stand in contact with the salts. Rubber compression practically does not change its volume. The above listed properties of rubber apply the backfill material is due to the fact, that rubber under compression does not change its volume. This means that the shrinkage laying array will be reduced in proportion to the amount of rubber waste in the total volume of backfill array. So, for example, put an array of colodado under the influence of rock pressure has a shrinkage of 10%, if the array will consist of 10% of rubber waste and 90% Solodov, the shrinkage rate is 9%, i.e., will be reduced by 10%.The use of rubber waste as an additional backfill material increases as backfill array by reducing its shrinkage as rubber compression practically does not change its volume. In addition, the use of rubber waste to bookmark reduces the environmental burden on the environment. The method of construction of filling the array in the developed space chamber when the development system, including separate transportation Solodov and additional backfill material, placement them in the exhaust chambers, characterized in that as an additional backfill material use of rubber waste, which are initially placed on
FIELD: mining industry.
SUBSTANCE: method includes erection of rows of main platforms along bed length in staggered order with length equal or divisible by step value for support displacement, and placing filling material thereon. Along length of main platforms between ceiling and bed soil post support is mounted, upon which filling material is fed. After that between main platforms additional platforms are erected with wedge supporting, and main platforms are rotated counter-clockwise towards pneumatic support and it is displaced for one drive step. During that filling material, while lowering, unwedges wedge support between ceiling and bed soil and forms artificial supports. After that additional platforms are rotated counter-clockwise towards pneumatic support. After movement of cleaning face for two drive steps operations for constructing artificial supports are repeated. Distance between main platforms along bed fall line are selected from mathematical expression.
EFFECT: higher efficiency.
FIELD: mining industry.
SUBSTANCE: method includes preparation and well extraction of resources of chambers with partial backfill of extraction space. Blocks of upper level relatively to blocks of lower level are placed in staggered order, while blocks are made in form of a stretched upwards hexahedron. Resources of block within one hexahedron are separated on two chambers, one of which, placed along periphery of hexahedron, after extraction and removal of ore from it is filled by hardening backfill. Second order chamber is made of hexahedron-like shape, extracted and removed under protection from artificial block on all six sides of this chamber. Removal of ore from first order chambers is performed through one removal mine - end of level ort and cross-cut in lower portion of block and intermediate sub-level cross-cuts.
EFFECT: higher efficiency.
FIELD: mining industry.
SUBSTANCE: device has surface composed of upper section with wedges and lower section and backfill material placed on said surface. Upper section is made in form of a rectangle, composed of rectangular triangle and rectangular trapezoid with possible displacement of trapezoid along triangle hypotenuse. Lower section is made of two plates, mounted on holder, fixed to pipe for feeding compressed air. Plate, positioned above the trapezoid, is mounted with possible counter-clockwise rotation around holder. Value of greater base of trapezoid hδ is selected from relation hδ = m - 0.9k, where m - bed massiveness, m, k - size of backfill material, m.
EFFECT: simplified construction, lower laboriousness.
FIELD: mining and underground building, particularly underground mining.
SUBSTANCE: method involves double-stage mineral deposit development; erecting artificial rock-and-concrete supports of previously cut primary chamber roof rock in at least two adjacent primary chambers; extracting secondary chamber resources; filling space defined by cut rock with hardening material mix. Mines for drilling and/or filling operations performing are arranged in deposit roof over or inside ore pillars of secondary chambers. Primary chamber roof rock is cut by well undercharge method. Hardening material mix is supplied via cross headings located between mine and cavities and/or via undercharged well sections remained after rock cutting operation.
EFFECT: increased safety and economical efficiency due to reduced number of drilling and filling mines or accompanying mineral excavation, possibility to use drilling and filling mines at secondary chamber development stage for ore cutting, venting and roof condition control.
5 cl, 3 dwg
SUBSTANCE: invention refers to mining industry and can be implemented at underground development of steep pitched deposits represented with unstable ore, under thickness of water-flooded sediments, excavation of which is connected with hazard of underground water inrush into mine workings. The procedure of development of thick steep pitched ore bodies consists in division of ore body into layers mined in descending order, in mining layers with cuts and in filling mined space with a solidifying material. Sections of location of cavities above filled massif and sizes of these cavities are determined by visual or instrument survey from cuts mined adjoined to the filled massif. Solidifying materials are supplied to places of after-filling in adjoined cuts using, for example a concrete pump equipped with the system of control over filling mixture supply. Cavities are after-filled in a divergent order in the direction off their boundaries, from uttermost adjoined cuts to adjoined cuts.
EFFECT: increased completeness of filling mined space, decreased space of mining auxiliary entries and increased safety of mining at development of deposits.
SUBSTANCE: invention refers to mining industry, and namely to the method used for hydraulic filling of long single mine workings. It involves influence of retaining and filtering connection straps, installation of pulp pipeline, and supply of filling pulp. Water is drained via drain holes made in connection straps installed on the side opposite to the pulp supply. Filling pulp is supplied to the filled area via pulp pipeline with the holes made in lower part, which is attached to the roof of mine working throughout its length. The holes made at the beginning of the pipeline are equipped with petal valves.
EFFECT: increases the filling degree of the worked-out area in hard-to-reach sections.
2 cl, 2 dwg
SUBSTANCE: method of goaf stowing during underground development of steeply dipping thick ore bodies involves bottom-upward excavation of inclined ore streaks 5 in horizontal layers up to 8 m wide with the inclination angle equal to angle of dip of ore body starting from the hanging side towards the lying side, ore breaking to the mine goaf of the bed, loading of the broken ore from the mine goaf, installation of insulating bulkheads on the bed flanks and filling of the mine goaf with hydraulic stowing mixture 2. Before the mine goaf is filled with hydraulic stowing mixture 2, there built near exposed surface of the adjacent inclined ore streak 6 is concrete retaining wall 1 with the thickness taken depending on the bed width and the specified strength of wall 1. After the rest part of the mine goaf is filled with hydraulic stowing mixture 2 and water is filtered, injection of hardening - cement-and-sand solution is performed to its upper part to the depth of 100…300 mm for movement of self-propelled machines along the filling surface 4.
EFFECT: invention will allow decreasing the flow rate of hardening stowing mixture owing to the construction of concrete retaining wall and reducing the prime cost of the mine production.
SUBSTANCE: shaft pneumatic bridging comprises pneumatic shell, suspension unit, protective jacket, manometric and air-supply hoses, device for filling, control of excessive air pressure and its ejection, mount cord. At the same time pneumatic shell is arranged in the form of soft axisymmetric toroidal shell of rectangular section, inside of which there is sleeve arranged, and along its axis there is pipe mounted in with diametre that is less compared to sleeve. Besides pneumatic shell is separated into two equal parts by means of perforated web, upper end and its side surfaces are coated by loose-fitting meshy web with lap towards working zone of rise heading, upper end is made of synthetic high-module fibre of high strength.
EFFECT: improved operational reliability of shaft pneumatic bridging.
SUBSTANCE: method includes supplying pulp under excessive pressure via a safety device. The safety device is arranged as a tee, one end of which is connected to a bottomhole pulp line, the second one - to a sealer, and a safety membrane is installed on the third one. At the same time the output of wells in the backfilled chamber is arranged near its roof.
EFFECT: higher extent of chambers filling with a backfilling material with reduction of labour costs.
2 cl, 7 dwg
SUBSTANCE: flushing pulp is delivered in stages forming several layers between which drain pipes are installed using leakproof hose parallel to longitudinal axis of flushed space. Drain pipes are attached by one end to leakproof hose. Each drain pipe is extended till it reaches opposite dam, then the housing is detached from drain pipe through the opening in filter dam and is removed for further use. When installation of project quantity of drain pipes is completed, process of flushing pulp delivery is resumed.
EFFECT: improving efficiency of flushing works due to reduction of flushing pulp runoff period.