CN1546839A - Ladder type mining method using united pillars to support roof and partition stope - Google Patents

Ladder type mining method using united pillars to support roof and partition stope Download PDF

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Publication number
CN1546839A
CN1546839A CNA200310111193XA CN200310111193A CN1546839A CN 1546839 A CN1546839 A CN 1546839A CN A200310111193X A CNA200310111193X A CN A200310111193XA CN 200310111193 A CN200310111193 A CN 200310111193A CN 1546839 A CN1546839 A CN 1546839A
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stope
associating
ore
filling
board
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CNA200310111193XA
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Chinese (zh)
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CN100441831C (en
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浦恩社
蒋绍平
周斌
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云南驰宏锌锗股份有限公司
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Abstract

The invention refers to a mining method with top board supported by the supporting pole, quarry partition and staged sotping. The invention uses mine house and mine pole two steps parallel laminar water and sand filling method. It uses the union supporting pole made up of wood pole and glued filers to support the top board, it distributes the union pole with intervals along the mine direction, divides the plane into several mining quarry along the mine direction, advances with ladder type. The mining efficiency is high, the mining loss rate and the impoverished rate is low, safe and has a high technology and economic data.

Description

Associating shore supports top board, stope subregion, staged back production mining methods

Technical field: the present invention relates to a kind of underground useful deposit mining method, be specially adapted to the ore body steadiness poor-medium deposit mining.

Background technology: upward be widely used in recent years, mainly contain to slicing and filling mining, go up to admission passage filling mining and three kinds of typical types of some pillar mining with stowing to horizontal cut and fill stoping.To route hydraulic filling mining codes, stope is divided into several segmentations along the orebody trend layout on the copper mine of Wushan, each segmentation is divided into several layerings again, and each layering adopts route upwards to coil continuous stoping by both wings to central authorities or by lower wall; After back production finishes, adopt consolidated fill to be convenient to the recovery of segmentation top-bottom pillar except that head adopts layering, non-consolidated fill is all adopted in all the other layerings.Xincheng Gold Mine mechanization panel upward ut and fill stoping, the panel is arranged along orebody trend, arrange a plurality of stopes along vertical orebody trend in the panel, each stope carries out driling explosion, ore shipment, supporting and packing job respectively, three back production are divided in whole panel, the first step is used to layering cemented-method mining room, and second step used to the tailing-filled method of layering and adopts studding, and the 3rd step was used top-bottom pillar from top to the admission passage filling method that adopt.To horizontal cut and fill stoping, establish the some post of rule in stope in the mechanization of San-Shan-Dao Gold Mine point pillar, carry out slicing, the basic unit of slicing and filling is that tailings and waste fill, top layer are consolidated fill and the operation base plate that forms stope.Though these mining codes have higher mining efficiency, because of its filling does not connect the top, obturation does not have the effect of direct support stope item plate, only is adapted to the good deposit mining of ore body steadiness.The large tracts of land roof fall accident can frequently appear in the deposit mining relatively poor for the ore body steadiness, the production operation of serious threat mining safety, and cause and adopt down in a large number or the ore of inbreak can't ore removal, superelevation filling to the dead zone also can cause casting resins a large amount of in the ore removal to be sneaked into, cause mining loss late, the rate of dilution to improve greatly, handle hidden danger and safeguard that the cost of stope increases, technical-economic index descends.

Summary of the invention: for solve to horizontal cut and fill stoping the ore body steadiness poor-the problems referred to above of running in the medium deposit mining, the present invention utilizes mineral building ore pillar two step back production principles, provide a kind of mining efficiency height, low, the job safety of mining loss late, associating shore supports top board, stope subregion, staged back production mining methods that technical-economic index is good.

To achieve these goals, the invention provides following technical scheme: adopt on mineral building ore pillar two steps to horizontal slice hydraulic filling stoping method, associating shore supports top board with wooden prop and cemented fill formation, associating pillar both sides have partition wall, along orebody trend, vertical orebody trend is arranged the associating pillar at a certain distance, the ore body across pitch is divided into a plurality of stopes in the plane, and stairstepping is boosted; The wide 3-6 rice of associating pillar, height are that layer height, length are ore body thickness, and spacing is a 10-20 rice; The process of constructing of associating pillar is: press wide route of 3-6 rice and layer height 3-4 rice production ore, smooth route base plate is also laid wooden grade beam on base plate, at a certain distance at wood stud on the wooden grade beam and push against between dead zone top plate, column to connect and clench with batten, the vertical, horizontal Grouting Pipe is installed again, construct the filling flexible bulkhead in the both sides, dead zone, carry out hydraulic filling, in obturation, carry out high-pressure slip-casting again to the dead zone then, form artificial cement's pillar; Each stope forms ore removal, ventilation, filling system separately, is moved back to the middle part by two ends respectively and adopts, and control each stope mining progress, makes stope form the stepped form of boosting on the vertical section; Constructing filling flexible bulkhead process is: the spacing of pressing 40-70 centimetre on the intact upper lower burrs country rock of ore body back production is installed inverted wedge type anchor rod, wire rope with diameter 10-20 millimeter twines tension on the upper lower burrs anchor pole, the middle standing tree (spacing 1-3 rice) of using is fixed, and lays wire lath on steel cable, hangs filter cloth formation filling flexible bulkhead.

This associating shore supports top board, stope subregion, staged back production mining methods, its special character are to adopt on mineral building ore pillar two steps to horizontal slice hydraulic filling stoping method, with wooden prop and cemented fill formation associating shore supports top board.Along orebody trend, press the vertical orebody trend of 10-20 rice spacing and arrange the associating pillar, the ore body across pitch is divided into a plurality of stopes (adopt accurate structure according to the ore body distribution characteristics and determine its division numbers) in the plane, each stope stairstepping is boosted.The associating strut width is that 3-6 rice, height are layer height (3-4 rice), long is ore body thickness, its process of constructing is: press wide route of 3-6 rice and layer height 3-4 rice production ore, smooth route base plate is also laid wooden grade beam on base plate, (0.5-1 rice) props up wood stud and constructs the filling flexible bulkhead in the both sides, dead zone on wooden grade beam at a certain distance, carry out hydraulic filling to the dead zone then, and in obturation, carry out high-pressure slip-casting (being undertaken by Grouting Pipe), form artificial cement's pillar with grouting pump.

The process of constructing of filling flexible bulkhead is: the spacing of pressing 40-70 centimetre on the intact upper lower burrs country rock of ore body back production is installed inverted wedge type anchor rod, wire rope with diameter 10-20 millimeter twines tension on the upper lower burrs anchor pole, the middle standing tree (spacing 1-3 rice) of using is fixed, and lays wire lath on steel cable, hangs filter cloth formation filling flexible bulkhead.

Each stope forms ore removal, ventilation, filling system (lower wall mine chute, Zigzag type ramp, laying filling pipeline etc.) separately, move back to the middle part by two ends respectively and adopt, and control each stope mining progress, make stope on the vertical section, form the stepped form of boosting.

Mining methods of the present invention are because employing pin and filling adhesive bond constitute the associating ore pillar that directly supports the stope top board, top board has been played effective supporting, top board is effectively controlled, can guarantees the supreme armor rock of back production, significantly reduced last adjustment debit and lost the ore deposit amount; The stepped back production of subregion can be avoided high secondary stress influence district in addition, has reduced stress and has concentrated the possibility that discharges, and has accelerated drawing speed, improves production capacity, has reduced the frequency and the scale of stope roof collapse, the safety work that has improved stope; Simultaneously, mining loss late, the rate of dilution all reduce greatly, handle hidden danger and safeguard that the cost of stope reduces, and technical-economic index improves.

Description of drawings: further specify essence of the present invention below in conjunction with accompanying drawing.

Fig. 1 unites ore pillar plane of arrangement schematic diagram for the present invention

Fig. 2 arranges the vertical section schematic diagram for the present invention unites ore pillar

Fig. 3 is a combined mines rod structure side schematic view of the present invention

Fig. 4 is a flexible bulkhead structural representation of the present invention

1-associating pillar; 2-mineral building (obturation); Ore removal lane, 3-exploiting field; 4-exploiting field mine chute; 5-the stone of not digging up mine; 6-stage casing along the pulse; 7-wood stud; 8-casting resin; 9-half round timber grade beam; 10-slip casting cemented fill; 11-filling flexible bulkhead; 12-inverted wedge type anchor rod; 13-be wire lath; 14-partition point post; 15-wire rope.

Specific embodiments: embodiment 1: as Fig. 1, shown in 2, this associating shore supports top board, the stope subregion, staged back production mining methods, adopt on mineral building ore pillar two steps to horizontal slice hydraulic filling stoping method, form associating shore supports top board with wooden prop and cemented fill, along orebody trend, arrange the associating pillar by 10 meters vertical ore bodies of spacing, the ore body across pitch is divided into 5 stopes (long 50 meters of each stope) in the plane, each stope forms ore removal separately, ventilate, filling system, move back to the middle part by two ends respectively and adopt, and control each stope mining progress, make stope on the vertical section, form the stepped form of boosting.

As shown in Figure 3, the associating strut width is 3 meters, height is 3 meters of layer heights, long is ore body thickness, its process of constructing is: by 3 meters wide routes and 3 meters production ores of layer height, smooth route base plate is also laid the half round timber grade beam on base plate, on wooden grade beam, prop up wood stud and push against dead zone top plate by 0.5 meter spacing, clench with the batten connection between column, install vertical again, horizontal Grouting Pipe, construct the filling flexible bulkhead in the both sides, dead zone, carry out hydraulic filling to the dead zone then, and in filling body, carry out high-pressure slip-casting with grouting pump by Grouting Pipe, form artificial cement's shore supports top board.

As shown in Figure 4, the process of constructing of flexible bulkhead is: the back production of nugget ore finishes, build in the upper lower burrs country rock of position at partition wall, by 40 centimetres spacings inverted wedge type anchor rod is installed, wire rope and inverted wedge type anchor rod with 10 millimeters of diameters twine tension mutually, and be middle fixing with standing tree (1 meter of spacing), lays wire lath on steel cable, hang 1 metafiltration cloth at last, form the filling flexible bulkhead.

Adopt accurate cutting engineering and mainly be in the lower wall of ore body and arteries and veins, arrange mine chute, Zigzag type ramp, filling well, layering ore extracting channel, along the pulse, route etc.

Its process for stoping is: the road is tunneled along the pulse to the two ends, exploiting field along the ore body lower wall respectively in each exploiting field, moves back to the middle part from two ends and adopts.Rooming adopts general coarse fraction hydraulic filling, constructs by associating pillar construction technology to design associating pillar position.Pusher leg drill is adopted in perforating, and 2# rock ammonal, nonel tube-blasting cap initiation system are adopted in explosion.With electric LHD ore removal (bucket capacity is the 0.75-1.5 cubic meter).Ore loads and unloads ore chute by scraper from stope, enters the stage casing haulage way.The stope top board adopts pipe-seam type anchor rod by 1.5 * 1.5 meters net degree supporting to be installed.The fltting speed that each exploiting field makes progress is controlled by the height that adjacent exploiting field is no more than three layerings at most.

Coarse fraction hydraulic filling technology is: barren rock at face of land casting resin preparation station, to enter the sand storehouse through two sections jaw crusher open circuit crushings to lumpiness less than 40 millimeters sandstone standby.During filling sandstone and water are mixed into filling pipe by a certain percentage in the control room, are connected to underground goaf and carry out filling (flexible bulkhead is constructed in the preceding down-hole of filling).

Embodiment 2: as Fig. 1, shown in 2, this associating shore supports top board, the stope subregion, staged back production mining methods, adopt on mineral building ore pillar two steps to horizontal slice hydraulic filling stoping method, form associating shore supports top board with wooden prop and cemented fill, along orebody trend, arrange the associating pillar by 20 meters vertical ore bodies of spacing, the ore body across pitch is divided into 3 stopes (long 100 meters of each stope) in the plane, each stope forms ore removal separately, ventilate, filling system, move back to the middle part by two ends respectively and adopt, and control each stope mining progress, make stope on the vertical section, form the stepped form of boosting.

As shown in Figure 3, the associating strut width is 6 meters, height is 4 meters of layer heights, long is ore body thickness, its process of constructing is: by 6 meters wide routes and 4 meters production ores of layer height, smooth route base plate is also laid the half round timber grade beam on base plate, on wooden grade beam, prop up wood stud and push against dead zone top plate by 1 meter spacing, clench with the batten connection between column, install vertical again, horizontal Grouting Pipe, construct the filling flexible bulkhead in the both sides, dead zone, carry out hydraulic filling to the dead zone then, and in filling body, carry out high-pressure slip-casting with grouting pump by Grouting Pipe, form artificial cement's shore supports top board.

As shown in Figure 4, the process of constructing of flexible bulkhead is: the back production of nugget ore finishes, build in the upper lower burrs country rock of position at partition wall, by 70 centimetres spacings inverted wedge type anchor rod is installed, wire rope and inverted wedge type anchor rod with 20 millimeters of diameters twine tension mutually, and be middle fixing with standing tree (3 meters of spacings), lays wire lath on steel cable, hang 2 metafiltration cloth at last, form the filling flexible bulkhead.

Adopt accurate cutting engineering and mainly be in the lower wall of ore body and arteries and veins, arrange mine chute, Zigzag type ramp, filling well, layering ore extracting channel, along the pulse, route etc.

Its process for stoping and coarse fraction hydraulic filling technology are identical with example one.

Embodiment 3: as Fig. 1, shown in 2, this associating shore supports top board, the stope subregion, staged back production mining methods, adopt on mineral building ore pillar two steps to horizontal slice hydraulic filling stoping method, form associating shore supports top board with wooden prop and cemented fill, along orebody trend, arrange the associating pillar by 15 meters vertical ore bodies of spacing, the ore body across pitch is divided into 4 stopes (long 80 meters of each stope) in the plane, each stope forms ore removal separately, ventilate, filling system, move back to the middle part by two ends respectively and adopt, and control each stope mining progress, make stope on the vertical section, form the stepped form of boosting.

As shown in Figure 3, the associating strut width is 4 meters, height is 3.5 meters of layer heights, long is ore body thickness, its process of constructing is: by 4 meters wide routes and 3.5 meters production ores of layer height, smooth route base plate is also laid the half round timber grade beam on base plate, on wooden grade beam, prop up wood stud and push against dead zone top plate by 0.8 meter spacing, clench with the batten connection between column, install vertical again, horizontal Grouting Pipe, construct the filling flexible bulkhead in the both sides, dead zone, carry out hydraulic filling to the dead zone then, and in filling body, carry out high-pressure slip-casting with grouting pump by Grouting Pipe, form artificial cement's shore supports top board.

As shown in Figure 4, the process of constructing of flexible bulkhead is: the back production of nugget ore finishes, build in the upper lower burrs country rock of position at partition wall, by 50 centimetres spacings inverted wedge type anchor rod is installed, wire rope and inverted wedge type anchor rod with 14 millimeters of diameters twine tension mutually, and be middle fixing with standing tree (2 meters of spacings), lays wire lath on steel cable, hang 1 metafiltration cloth at last, form the filling flexible bulkhead.

Adopt accurate cutting engineering and mainly be in the lower wall of ore body and arteries and veins, arrange mine chute, Zigzag type ramp, filling well, layering ore extracting channel, along the pulse, route etc.

Its process for stoping and coarse fraction hydraulic filling technology are identical with embodiment 1.

The present invention unites every technical characteristics of shore supports top board, stope subregion, staged back production mining methods, and its technology is mainly manifested in following several respects:

(1) application of associating pillar has fundamentally solved the technology difficulty that general method of mining by the way of filling filling is difficult to connect the top Topic, thus the safety production environment of stope top board effectively improved.

(2) utilizing the associating pillar, reasonably is that a plurality of stopes carry out back production, the mining of each stope simultaneously with ore body division Height can be adjusted in certain scope flexibly, has shortened to greatest extent the ore mining period, has improved stope Safety work, strengthened production capacity.

(3) use of filling flexible bulkhead, drainage is effective, and drainage is fast, does not run sand, has reduced the subsurface environment pollution, And cost is low, and construction technology is simple, has reduced the time of down-hole less important work.

(4) because being caving of stope top board is controlled, guaranteed that the filling charge level of whole stope is smooth. So this Mining methods ore losses and rate of dilution index are all very low.

Claims (7)

1, associating shore supports top board, stope subregion, staged back production mining methods, it is characterized in that adopting on mineral building ore pillar two steps to horizontal slice hydraulic filling stoping method, associating shore supports top board with wooden prop and cemented fill formation, associating pillar both sides have partition wall, along orebody trend, vertical orebody trend is arranged the associating pillar at a certain distance, the ore body across pitch is divided into a plurality of stopes in the plane, and stairstepping is boosted.
2, associating shore supports top board as claimed in claim 1, stope subregion, staged back production mining methods is characterized in that the wide 3-6 rice of associating pillar, high for layer height, length are ore body thickness, and spacing is a 10-20 rice.
3, associating shore supports top board as claimed in claim 1 or 2, the stope subregion, staged back production mining methods, the process of constructing that it is characterized in that the associating pillar is: press wide route of 3-6 rice and layer height 3-4 rice production ore, smooth route base plate is also laid wooden grade beam on base plate, on wooden grade beam, prop up wood stud at a certain distance and push against dead zone top plate, clench with the batten connection between column, install vertical again, horizontal Grouting Pipe, construct the filling flexible bulkhead in the both sides, dead zone, carry out hydraulic filling to the dead zone then, in obturation, carry out high-pressure slip-casting again, form artificial cement's pillar.
4, associating shore supports top board as claimed in claim 1 or 2, stope subregion, staged back production mining methods, it is characterized in that each stope forms ore removal, ventilation, filling system separately, move back to the middle part by two ends respectively and adopt, and control each stope mining progress, make stope on the vertical section, form the stepped form of boosting.
5, associating shore supports top board as claimed in claim 3, stope subregion, staged back production mining methods, it is characterized in that each stope forms ore removal, ventilation, filling system separately, move back to the middle part by two ends respectively and adopt, and control each stope mining progress, make stope on the vertical section, form the stepped form of boosting.
6, associating shore supports top board as claimed in claim 1 or 2, stope subregion, staged back production mining methods, it is characterized in that constructing filling flexible bulkhead process is: the spacing of pressing 40-70 centimetre on the intact upper lower burrs country rock of ore body back production is installed inverted wedge type anchor rod, wire rope with diameter 10-20 millimeter twines tension on the upper lower burrs anchor pole, the middle standing tree (spacing 1-3 rice) of using is fixed, and lays wire lath on steel cable, hangs filter cloth formation filling flexible bulkhead.
7, associating shore supports top board as claimed in claim 3, stope subregion, staged back production mining methods, it is characterized in that constructing filling flexible bulkhead process is: the spacing of pressing 40-70 centimetre on the intact upper lower burrs country rock of ore body back production is installed inverted wedge type anchor rod, wire rope with diameter 10-20 millimeter twines tension on the upper lower burrs anchor pole, the middle standing tree (spacing 1-3 rice) of using is fixed, and lays wire lath on steel cable, hangs filter cloth formation filling flexible bulkhead.
CNB200310111193XA 2003-12-11 2003-12-11 Ladder type mining method using united pillars to support roof and partition stope CN100441831C (en)

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Cited By (11)

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CN101858217A (en) * 2010-05-18 2010-10-13 中南大学 House pillar changeable panel upward demix filling mining method
CN101008316B (en) * 2007-01-31 2011-04-20 贵州开磷(集团)有限责任公司 Phosphogypsum cementing and post-filling mining method and pulping technology thereof
CN102251773A (en) * 2011-06-22 2011-11-23 大冶有色金属股份有限公司 Route type upward horizontal layered filling mining method suitable for extremely complex ore body mining
CN102418527A (en) * 2011-12-28 2012-04-18 北京科技大学 Method for mining flat dipping ultrathin sedimentary type subterranean iron ore deposit
CN102852524A (en) * 2012-10-09 2013-01-02 中国铝业股份有限公司 Method for utilizing hydraulic support to improve bauxite recovery rate
CN103603682A (en) * 2013-11-14 2014-02-26 江西理工大学 Roof supporting method applicable to cutting, drifting and cemented filling mining
CN103758520A (en) * 2013-12-28 2014-04-30 北京昊华能源股份有限公司 Sharp inclined coal seam flexible shield support multi-step coal mining method
CN103982183A (en) * 2014-05-23 2014-08-13 山东黄金矿业(莱州)有限公司三山岛金矿 Method for recovering broken ore body by access sub-step roof popping
CN104060991A (en) * 2014-06-26 2014-09-24 中南大学 Upward cut-and-fill mining method for in-vein slope ramp of gentle dip thin vein
CN105626069A (en) * 2016-01-19 2016-06-01 中国海洋石油总公司 Outer-masonry and inner-concrete artificial pillar and construction method thereof
CN107687341A (en) * 2017-10-26 2018-02-13 中冶北方(大连)工程技术有限公司 A kind of Upward slicing point pillar filling mining method of extremely thick big unstable ore body

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* Cited by examiner, † Cited by third party
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CN101008316B (en) * 2007-01-31 2011-04-20 贵州开磷(集团)有限责任公司 Phosphogypsum cementing and post-filling mining method and pulping technology thereof
CN101858217B (en) * 2010-05-18 2012-03-21 中南大学 House pillar changeable panel upward demix filling mining method
CN101858217A (en) * 2010-05-18 2010-10-13 中南大学 House pillar changeable panel upward demix filling mining method
CN102251773B (en) * 2011-06-22 2013-06-12 大冶有色金属股份有限公司 Route type upward horizontal layered filling mining method suitable for extremely complex ore body mining
CN102251773A (en) * 2011-06-22 2011-11-23 大冶有色金属股份有限公司 Route type upward horizontal layered filling mining method suitable for extremely complex ore body mining
CN102418527A (en) * 2011-12-28 2012-04-18 北京科技大学 Method for mining flat dipping ultrathin sedimentary type subterranean iron ore deposit
CN102418527B (en) * 2011-12-28 2014-08-13 北京科技大学 Method for mining flat dipping ultrathin sedimentary type subterranean iron ore deposit
CN102852524B (en) * 2012-10-09 2014-10-22 中国铝业股份有限公司 Method for utilizing hydraulic support to improve bauxite recovery rate
CN102852524A (en) * 2012-10-09 2013-01-02 中国铝业股份有限公司 Method for utilizing hydraulic support to improve bauxite recovery rate
CN103603682A (en) * 2013-11-14 2014-02-26 江西理工大学 Roof supporting method applicable to cutting, drifting and cemented filling mining
CN103603682B (en) * 2013-11-14 2015-11-25 江西理工大学 A kind of top plate supporting method being applicable to slice drift cemented filling mining
CN103758520A (en) * 2013-12-28 2014-04-30 北京昊华能源股份有限公司 Sharp inclined coal seam flexible shield support multi-step coal mining method
CN103758520B (en) * 2013-12-28 2016-10-05 北京昊华能源股份有限公司 A kind of half-edge coal seam flexible type shield staged coal-mining method
CN103982183A (en) * 2014-05-23 2014-08-13 山东黄金矿业(莱州)有限公司三山岛金矿 Method for recovering broken ore body by access sub-step roof popping
CN104060991B (en) * 2014-06-26 2016-01-20 中南大学 A kind of for ramp upward ut and fill stoping in the arteries and veins of Gently inclined thin vein
CN104060991A (en) * 2014-06-26 2014-09-24 中南大学 Upward cut-and-fill mining method for in-vein slope ramp of gentle dip thin vein
CN105626069A (en) * 2016-01-19 2016-06-01 中国海洋石油总公司 Outer-masonry and inner-concrete artificial pillar and construction method thereof
CN105626069B (en) * 2016-01-19 2018-04-27 中国海洋石油集团有限公司 Concrete artificial ore pillar and its construction method in a kind of outer block
CN107687341A (en) * 2017-10-26 2018-02-13 中冶北方(大连)工程技术有限公司 A kind of Upward slicing point pillar filling mining method of extremely thick big unstable ore body

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Application publication date: 20041117

Assignee: YILIANG CHIHONG MINING INDUSTRY CO., LTD.

Assignor: Yunnan Chihong Zinc & Germanium Co., Ltd.

Contract record no.: 2013530000094

Denomination of invention: Ladder type mining method using united pillars to support roof and partition stope

Granted publication date: 20081210

License type: Exclusive License

Record date: 20131018

LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model