CN203452793U - Room structure of shallow-hole shrinkage mining method for mining near-surface thick, large and more oblique ore body - Google Patents

Room structure of shallow-hole shrinkage mining method for mining near-surface thick, large and more oblique ore body Download PDF

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Publication number
CN203452793U
CN203452793U CN201320408694.3U CN201320408694U CN203452793U CN 203452793 U CN203452793 U CN 203452793U CN 201320408694 U CN201320408694 U CN 201320408694U CN 203452793 U CN203452793 U CN 203452793U
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mineral building
ore
lane
phase
stage
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陈旺
王孝虎
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JINAN GANGCHENG MINING CO Ltd
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JINAN GANGCHENG MINING CO Ltd
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Abstract

The utility model provides a room structure of a shallow-hole shrinkage mining method for mining a near-surface thick, large and more oblique ore body. The room structure comprises a first-stage room and a second-stage room which are arranged at an interval along the direction of the ore body, wherein the rooms are distributed vertical to the direction of the ore body; an upper plate is arranged at one side of the ore body, and a lower plate is arranged at the other side of the ore body; a stope drift is built in the middle of the bottom part of the first-stage room; a scraper tunnel for transferring ore from the first-stage room is built in the middle of the bottom part of the second-stage room; an ore transferring tunnel is connected between the stope drift and the scraper tunnel; an upper plate transportation tunnel and a lower plate transportation tunnel which are distributed along the direction of the ore body are respectively built at the top parts and bottom parts of the rooms; and the upper plate transportation tunnel and the lower plate transportation tunnel at the bottom parts are connected to two ends of the scraper tunnel and the stope drift. The room structure has the beneficial effects that the ore recovery ratio is high, the safety is relatively high, and the national resources are greatly prevented from waste. In addition, the room structure and production process are simple and convenient to manage; and the ore can be drawn under the effect of dead load.

Description

Thick large, the mineral building structure compared with inclined orebody exploitation with shallow hole shrinkage method of near surface
Technical field
The invention belongs to mine underground field of mining, relate to thick large, the mineral building structure compared with inclined orebody exploitation with shallow hole shrinkage method of a kind of near surface.
Background technology
Shrinkage stoping also belongs to openstope method.Its feature be workman directly the shrink under mineral building exposure pile above operation, slicing from bottom to top, ore under at every turn adopting is emitted 1/3rd left and right (sometimes reaching 35%-40%) by deadweight, and all the other persist in mineral building as the workbench of adopting on continuing.After mineral building complete extraction, the ore persisting in mineral building is gone and is emitted in a large number again, is final draw or a large amount of ore drawing.
The ore persisting in rooming process often moves, can not be as the Main Means of underground pressure management.When unstable rock, shrink can not prevent country rock slabbing, and particularly, when a large amount of ore drawing, the exposure of country rock increases gradually, often causes a large amount of slabbings of country rock and increases ore dilution.The large rock mass of avalanche, usually stops up funnel and causes ore drawing difficulty, increases ore losses.
According to treating above a little, shrinkage method is applicable to exploitated ore and country rock is firm, and ore, without pyrophorisity, is difficult for the high-dipping mineral deposit of row caking again after fragmentation.Thin and in vein deposit below thick, use very extensive.So-called deep hole shrinkage method, on block structure and process for stoping, basic identical with block chambering method.When rooming, due to not operation in stope of workman, to ore drawing amount, without strict demand, emptying also can persist a part in mineral building completely, and this will determine according to the requirement of ore removal.Using deep hole to fall under the condition in ore deposit, utilize the ore persisting in mineral building to support two and help country rock, be at all impossible.Therefore,, in the production practices of mine, deep hole shrinkage method has belonged to block chambering method in fact.
With regard to shallow hole shrinkage method, discussed below.
1, structure and parameter
As shown in Figure 1, its major parameter comprises level interval, nugget length and width, ore pillar size and polycrystalline substance etc. to block structure.
Level interval should be according to the firm situation of prospecting degree, country rock in mineral deposit, the slanting angle of ore body etc. because usually determining.Sum up the experience of China's application shrinkage method, exploitation narrow vein or middle thickness orebody also belongs to the mineral deposit of the 4th porspecting type, and Duan Gaoyi adopts 30-50m.
The length of ore body is mainly considered the steadiness of ore and country rock, is generally 40-60m.
During exploitation lean ore body, the wide 2-6m of studding, the thick 2-3m of fore-set, the high 4-6m of foundation; In the wide 8-12m of thick above ore body studding, the thick 3-6m of fore-set, the high 8-10m of foundation.
2, mining preparation work
Mining preparation work be mainly phase of boring haulage drift, People's Bank of China's vent (-escape) raise (as pedestrian, ventilation with), connecting taxiway, tunnel and filler neck etc. undercut.As shown in Figure 15-8, People's Bank of China's vent (-escape) raise is arranged in studding, connects in vertical direction every 4-5m pick connecting taxiway and both sides mineral building.
In mineral building, every 5-7m, establish a funnel.In order to reduce flat field workload, funnel should be tried one's best near lower wall.Owing to adopting the shallow bore hole ore deposit that falls, generally do not establish second-time breakage level, a small amount of bulk is directly carried out fragmentation at stope work plane.
3, cutting work
Cutting Comparision is simple, take and undercuts tunnel as the scope of freedom, forms pulling end space and wards off leakage, and its effect is to open up the scope of freedom for actual mining, and creates favorable conditions for explosion.
Undercut and be highly generally 2-2.5m, the width that undercuts equals orebody thickness; In thin and extra narrow vein, smooth for guaranteeing ore drawing, its width should not be less than 1.2m.
4, actual mining
The actual mining of shrinkage method comprises: rock drilling, explosion, ventilation, local ore drawing, sled top flat field, a large amount of ore drawings etc.
Actual mining layering is from bottom to top carried out, and layer height is generally 2-3m.In exploitation during extra narrow vein, for operation just and obtain good economic effect, the minimum working width of stope is 0.9-1m.
(1), rock drilling when ore is more firm, adopt up-hole; When ore steadiness is poor, can adopt horizontal big gun hole.While beating up-hole, can adopt bench work plane or once beat regardless of the whole layer of bench.Bench face length is 10-15m.Long bench or regardless of the work plane of bench, can reduce the time of sled top and flat field, and be convenient to actual mining tissue, and current use is more extensive.While fetching water flat big gun hole, bench face length is 2-4m, is highly 1.5-2m, borehole spacing 0.8-1m.
(2), explosion generally adopts ammonium nitrate-fuel oil mixture or nitrolite explosion, with the fuse blasting cap initiation that kindles a fire, and electric cap application is not general.But promote in recent years nonel tube system, respond well.
(3), ventilate due to the conventional shrinkage mining packed type of China or Skarn Deposit, it is very high that the Free Silicon Dioxide in Dust particle content that operation produces is turned round in rock drilling one, very large to workman's health hazard.Therefore the needs that, the air quantity of face-airing should guarantee to meet dust discharge and get rid of blasting fume.In getting working face, the oxygen content of air must not be less than 20%, and wind speed must not be generally to enter people's fresh air from the courtyard of upper wind direction lower than the ventilation system of mineral building, after mineral building work plane, by the courtyard of lower distinguished and admirable aspect, is discharged to return aircourse, top.The ventilation in scraper tunnel, should form independently system, prevents that dirty wind from sealing in mineral building or haulage drift.
(4), local ore drawing generally adopts gravity ore drawing.When local ore drawing, ore drawing work should be maintained close ties with flat field work, and funnel is in accordance with regulations emitted desired ore deposit amount, to reduce flat field workload and to prevent from forming empty cave in shrink heap.If find to have formed empty cave, should take measures in time to process.
(5), flat field, sled top and second-time breakage carry out driling explosion operation for the ease of workman on shrink heap, after local ore drawing, shrink should be piled to surface evening, this is flat field.During flat field, top board and two should be helped to become flexible and the ore or the rock that do not fall are prized, to guarantee the safety of subsequent job, this cries sled top.The bulk falling when ore caving and sled top, should be broken when flat field, in order to avoid jam funnel, this cries second-time breakage.
(6), the recovery mineral building of final draw and the residual ore of mineral building should organize final draw after having adopted in time, is also a large amount of ore drawings, emits the whole ores that are deposited in mineral building.
5, evaluate
(1). applicable elements
1. country rock and ore are all firm, and country rock is without large fault belt, and in ore drawing process, country rock is avalanche voluntarily not., will inevitably there is wall caving in unstable rock or have fault belt, this not only causes ore dilution in back production and ore drawing process, and the bulk of slabbing often causes mineral building or leak to stop up, and makes ore drawing that difficulty occur.Top board ore must be enough firmly, can natural caving in exploitation process, just can guarantee personal safety and successfully carry out on adopt.
2. orebody thickness is advisable with thin and extra narrow vein.In thick above ore body, if adopt shrinkage method, because top board exposed area is large, back production safety is poor, the workloads such as sled top, flat field and second-time breakage enlarge markedly, thereby techno-economic effect is bad.
3. dip angle is advisable with high-dipping.Use shrinkage mining extra narrow vein, dip angle should be more than 65 °, and the mineral ore of inclination angle 60-65 °, when mining height surpasses 25-30m, ore drawing difficulty occurs.The mineral ore that inclination angle is less than 60 °, generally answers Bian to get auxiliary ore drawing measure.As some mine of recent year, in mineral building bottom, vibration ore dumping machine is installed and is carried out ore drawing: the mobility of having improved ore.Evidence, when dip angle is 60-65 °, the ore under adopting can all be emitted.When inclination angle is 55-45 °, the domestic mine electric rake scraping ore removal in stope having, has received good effect.
4. ore is without caking and pyrophorisity.In ore, should not contain the shale that cementing properties is strong, phosphorus content is too not high yet, to prevent ore caking and spontaneous combustion.
(2), pluses and minuses shrinkage method has structure and production technology is simple, convenient management, can utilize ore deadweight ore drawing, adopts the advantages such as accurate engineering quantity is little.If with thick above ore body in shrinkage mining, the dilution of ore pillar mineral loss is large; Workman is compared with operation under big exposure face, poor stability; Flat field work is heavy, is difficult to realize mechanization; Overstock a large amount of ores, affect capital turnover, therefore in thick above ore body, do not adopt shrinkage methods more than now.
Because my ore deposit exploitated ore is close to earth's surface, medium-length hole, deep hole blasting shake larger to surface buildings, so should adopt the less shallow bore hole mining codes of ground vibration impact over the ground exploits ore body, yet traditional shallow hole shrinkage method comes with some shortcomings, therefore need to provide a kind of novel shallow hole shrinkage method to exploit.
Summary of the invention
The present invention, in order to make up the deficiencies in the prior art, provides the mineral building structure that a kind of mineral building is simple in structure, production practice ground vibration is little, safety good, the simple near surface of technique is thick greatly, use shallow hole shrinkage method compared with inclined orebody exploitation.
The present invention is achieved through the following technical solutions:
Near surface of the present invention is thick large, mineral building structure compared with inclined orebody exploitation with shallow hole shrinkage method, it is characterized in that: comprise first phase mineral building and the second stage of mineral building along orebody trend space, arranged, the vertical orebody trend of mineral building is arranged, ore body one side is upper dish, opposite side is lower wall, the centre of first phase mineral building bottom is provided with the gallery that undercuts, the centre of second phase mineral building bottom is provided with the scraper lane for first phase mineral building ore removal, drag down between gallery and scraper lane and be connected with ore removal lane, the top of mineral building and bottom are respectively equipped with upper dish transportation lane and the lower wall transportation lane of arranging along orebody trend, the two ends of scraper lane and the gallery that undercuts are connected upper dish transportation lane and the lower wall transportation lane of bottom, after both sides first phase mineral building back production, filling firmly, the scraper lane of first phase mineral building is as the gallery that undercuts of the second stage of mineral building in centre.
Upper and lower dish leads to horizontal return aircourse above apart from People's Bank of China's ventilating shaft of ore body 4-5 rice driving above-below direction, People's Bank of China's ventilating shaft is positioned at the border of adjacent first phase mineral building and the second stage of mineral building, leads to the connection roadway of mineral building Ke Gong People's Bank of China at the ventilating shaft Nei Chuigao of People's Bank of China every 4-5 rice driving simultaneously.
The width of first phase mineral building and the second stage of mineral building is 12 meters.
Near surface of the present invention thick large, compared with inclined orebody exploitation shallow hole shrinkage method, comprise the steps: to adopt shrinkage stoping, along orebody trend interval division first phase mineral building and the second stage of mineral building, do not stay studding; First adopt first phase mineral building, the ore of first phase mineral building enters upper dish transportation lane or lower wall transportation lane successively through the gallery that undercuts, ore removal lane, scraper lane, then through Pass drawing to main gangway, finally promote and transport to ground; After the exploitation of both sides first phase mineral buildings, after goaf filling is firm, utilizes the obturation of both sides to support country rock and press, then back production second phase mineral building; The scraper lane of first phase mineral building is as the gallery that undercuts of the second stage of mineral building in centre, the ore of second phase mineral building enters upper dish transportation lane or lower wall transportation lane through the gallery that undercuts, then through Pass drawing to main gangway, finally promote and transport to ground, form first phase mineral building both sides ore removal, the development layout form of the second stage of mineral building one side ore removal; Adjacent two first phases, the second stage of mineral building share lineup's ventilating shaft that works.
During cutting, take and undercut tunnel as the scope of freedom, form pulling end space and the ore deposit funnel that falls; First phase mineral building exploitation is according to the gallery that undercuts 60 degree (ore natural repose angle the is 60 degree) ore deposit of flipping of hanging down behind ,Tiao ore deposit, ore deposit to mineral building border of flipping that tilts, and undercuting is highly 2-2.5m.
Every 8-12 rice, ore removal lane is set.
The invention has the beneficial effects as follows, the invention solves near surface thick large, compared with inclined orebody, on earth's surface, do not allow compared with the mining methods under the condition of great explosion vibrations, the method ore recovery ratio is high, safety is better, has reduced the waste of national resources.And mineral building structure and production technology simple, convenient management, can utilize ore deadweight ore drawing.
This shallow hole shrinkage method, neither pillar, does not stay top-bottom pillar yet.Ore body is divided into first phase mineral building and the second stage of mineral building, first adopts first phase mineral building, afterwards filling, then adopt the second stage of mineral building.This mining technology has successfully solved near surface thick large, concussion of blasting and mining technology and all-tailing cemented filling corresponding problem while falling ore deposit compared with inclined orebody back production, mining technology and all-tailing cemented filling are adapted, solved shrinkage stoping large problem of thick above ore body ore pillar mineral loss dilution in exploitation, improve the rate of extraction, national resources is fully used, extends the length of service in mine.
Accompanying drawing explanation
The front view that Fig. 1,2 is traditional shrinkage stoping, left view schematic diagram.Fig. 3,4,5 is respectively A-A, B-B, the C-C sectional view schematic diagram of shrinkage stoping of the present invention.Fig. 6 is the practical application bottom level top view schematic diagram of shrinkage stoping of the present invention.
In Fig. 3-5,1 gallery that undercuts, 2 ore removal lanes, on 3 dish transportation lane, 4 lower walls transportation lanes, 5 block walls, 6 People's Bank of China's ventilating shafts, 7 connection roadways, 8 anchor poles, 9 scraper lanes, 10 horizontal return aircoursies.
Fig. 1-2 Zhong, 6 People's Bank of China's ventilating shafts, 7 connection roadways, 10 horizontal return aircoursies, 12 stones of not digging up mine, 13 retain ores, 14 fore-sets, 15 studdings, 16 foundation, 17 funnels, 18 level haulageways.
The specific embodiment
Accompanying drawing is a kind of specific embodiment of the present invention.
Near surface of the present invention is thick large, mineral building structure compared with inclined orebody exploitation with shallow hole shrinkage method, comprise first phase mineral building and the second stage of mineral building along orebody trend space, arranged, the vertical orebody trend of mineral building is arranged, ore body one side is upper dish, opposite side is lower wall, the centre of first phase mineral building bottom is provided with the gallery 1 that undercuts, the centre of second phase mineral building bottom is provided with the scraper lane 9 for first phase mineral building ore removal, drag down between gallery and scraper lane and be connected with ore removal lane 2, the top of mineral building and bottom are respectively equipped with upper dish transportation lane 3 and the lower wall transportation lane 4 of arranging along orebody trend, the two ends of scraper lane and the gallery that undercuts are connected upper dish transportation lane and the lower wall transportation lane of bottom, after both sides first phase mineral building back production, filling firmly, the scraper lane of first phase mineral building is as the gallery that undercuts of the second stage of mineral building in centre.First phase mineral building and the second stage of mineral building bottom are provided with the ore deposit funnel that falls that several lead to the gallery that undercuts.
The horizontal return aircourse 10 that upper and lower dish leads to above apart from People's Bank of China's ventilating shaft 6 of ore body 4-5 rice driving above-below direction, People's Bank of China's ventilating shaft is positioned at the border of adjacent first phase mineral building and the second stage of mineral building, leads to the connection roadway 7 of mineral building Ke Gong People's Bank of China at the ventilating shaft Nei Chuigao of People's Bank of China every 4-5 rice driving simultaneously.
The width of first phase mineral building and the second stage of mineral building is 12 meters.
Near surface of the present invention thick large, compared with inclined orebody exploitation shallow hole shrinkage method, comprise the steps: to adopt shrinkage stoping, along orebody trend interval division first phase mineral building and the second stage of mineral building, do not stay studding; First adopt first phase mineral building, the ore of first phase mineral building enters upper dish transportation lane or lower wall transportation lane successively through the gallery that undercuts, ore removal lane, scraper lane, then through Pass drawing to main gangway, finally promote and transport to ground; After the exploitation of both sides first phase mineral buildings, after goaf filling is firm, utilizes the obturation of both sides to support country rock and press, then back production second phase mineral building; The scraper lane of first phase mineral building is as the gallery that undercuts of the second stage of mineral building in centre, the ore of second phase mineral building enters upper dish transportation lane or lower wall transportation lane through the gallery that undercuts, then through Pass drawing to main gangway, finally promote and transport to ground, form first phase mineral building both sides ore removal, the development layout form of the second stage of mineral building one side ore removal; Adjacent two first phases, the second stage of mineral building share People's Bank of China's ventilating shaft.
1, production technique condition
Ore body is distributed between 4 to-1 exploration line in diorite and limestone contact zones, and ore body is lenticular, and long 460 meters, tilt to extend 100 ~ 230 meters, compose and deposit absolute altitude-40 ~-320 meter (ground level+30 meter), 20 ~ 44 meters of thickness, average 24.70 meters; Move towards NE41 °, tendency NW, 40 ~ 60 °, inclination angle, upper slow lower steep, this design exploitation for absolute altitude be the ore body of-80 ~-196 meters; Because mine is located in suburbs, take up an area while requiring ore back production for newly-built residential block near narrow and small earth's surface concussion of blasting low as far as possible, and earth's surface does not allow to subside.
The technical solution adopted for the present invention to solve the technical problems is:
Adopt shrinkage stoping, along orebody trend, by rational stopping sequence, be divided into first phase mineral building and the second stage of mineral building, do not stay studding; First back production first phase mineral building, after the full tail consolidated fill in goaf, utilizes the cemented fill of both sides to support country rock and presses, then back production second phase mineral building, and adjacent two first phases, the second stage of mineral building share Yi Tiao People's Bank of China ventilating shaft.The vertical orebody trend layout of mineral building, mineral building is high 40 meters, and mineral building length is orebody thickness, and by ROCK CONDITIONS and exposed area, mineral building width being set is 12 meters.Mineral building bottom arranges polycrystalline substance, and discharging tunnel arranges one as Fig. 4 every 9 meters.The shallow bore hole ore deposit that falls, every 5 meters of connecting taxiways that Yi Tiaokegong People's Bank of China is set, every layering has been adopted, and keeps mineral building top board for the height of operation, to proceed to a upper layering connecting taxiway and to enter stope when sidewalk cannot enter.
The method should strictly be controlled each engineering parameter of polycrystalline substance, the exploitation of rational allocation first phase, the second stage of mineral building, the border of simultaneously grasping accurate mineral building in mining process.
Mainly adopt cut journey and comprise the gallery that undercuts, ore removal Xiang, People's Bank of China ventilating shaft, layering connecting taxiway, upper lower burrs stage haulage way and bottom moat ditch etc.
2, adopt accurate engineering:
If Fig. 3-5 three-view diagram B-B figure left side is at back production second phase mineral building, right side back production first phase mineral building, first phase mineral building left border is offset 8 meters of conducts gallery center line driving gallery 1 that undercuts that undercuts to the right, the gallery center line that undercuts turn left 15 meters of skews, be offset 9 meters of driving scraper lanes 9 to the right, as first phase mineral building ore removal, use, in the gallery that undercuts, every 8-9 rice, be communicated with scraper lane ore removal lane 2 is set; Upper and lower dish leads to upper level apart from ore body 4-5 rice driving People's Bank of China ventilating shaft 6, and every adjacent first phase mineral building and the second stage of mineral building share a upper dish ventilating shaft and lower wall ventilating shaft, dig well towards the connection roadway 7 of mineral building at ventilating shaft Nei Chuigao every 4-5 rice simultaneously.
After both sides first phase mineral building back production, filling firmly, the scraper lane while of first phase mineral building is as the gallery that undercuts of the second stage of mineral building.In undercuting 15 meter region, gallery right side, the second stage of mineral building bottom apart from the second stage of mineral building 9 meters of driving scraper lanes of gallery that undercut, every 8-12 rice, ore removal lane is set.
So just formed first phase mineral building both sides ore removal, the development layout form of the second stage of mineral building one side ore removal.Meanwhile, upper lower burrs also can be used as the ore removal lane use of mineral building towards the gallery that undercuts of mineral building.
3, cutting work
Cutting Comparision is simple, take and undercuts tunnel as the scope of freedom, forms pulling end space and the ore deposit funnel that falls; Because ore angle of repose is approximately 60 degree, the back production of first phase mineral building should, in strict accordance with the gallery that the undercuts 60 degree ore deposit of flipping of hanging down behind ,Tiao ore deposit, ore deposit to mineral building border of flipping that tilts, undercut and highly be generally 2-2.5m.
4, process for stoping:
Mineral building is divided in total length to the upper to bench work plane of several levels, the length of bench is at the situation 3-5 of the borehole of usage level and low dip rice, and hammer drill adopts 7655 type gas leg types, Drilling diameter phi 38 ~ 42mm.After explosion, the ore of storage is put to an also part, the distance of muck identity distance mineral building top board must not be over 2.5 meters.After local ore drawing, check immediately top board, and process float stone, as unstablely in ore deposit rock carry out anchor pole 8 supportings.And then carry out rock drilling.When bulk amount is little, second-time breakage is carried out in mineral building.
5, stope ventilation:
Freshly distinguished and admirablely from haulage way, come in, enter lower wall transportation lane 4, the gallery 1 that undercuts enters polycrystalline substance, after the gap cleaning face between People's Bank of China's ventilating shaft 6 and quarrel stone, through connection roadway 7, enter People's Bank of China's ventilating shaft, then enter horizontal return aircourse 10 on last stage.When ventilation condition is poor, adopt portable blower secondary ventilation.
6, goaf filling:
Wait upon the complete mineral building of back production, shutoff is carried out in sidewalk and discharging tunnel, as Fig. 4 arranges block wall 5.From upper stage disk transportation lane, enter the direct filling in top, dead zone or enter goaf by the filling of rig jewel hole.As mineral building is adopted from the bottom up, mineral building transfers level to while adopting, and strength of filling mass does not reach the intensity of scraper walking, can when mineral building is fills up to surplus 3-5 rice, adopt cement slurry filling, be equivalent to make the false end, shovel runs at false the end upper horizontal mineral building is dug up mine.Treat that the first phase mineral building filling complete strength of filling mass that reaches in both sides can carry out the recovery of the second stage of mineral building.
7, evaluate
(1). applicable elements
1. country rock and ore are all firm, and country rock is without large fault belt, and in ore drawing process, country rock is avalanche voluntarily not., will inevitably there is wall caving in unstable rock or have fault belt, this not only causes ore dilution in back production and ore drawing process, and the bulk of slabbing often causes mineral building or leak to stop up, and makes ore drawing that difficulty occur.Top board ore must be enough firmly, can natural caving in exploitation process, just can guarantee personal safety and successfully carry out on adopt.
2. orebody thickness thick above ore body in being, does not consider medium-length hole, the deep hole ore deposit that falls.
3. dip angle should be more than 55 °.The mineral ore that inclination angle is less than 60 °, generally answers Bian to get auxiliary ore drawing measure.When inclination angle is 55-45 °, the domestic mine electric rake scraping ore removal in stope having, has received good effect.
4. ore is without caking and pyrophorisity.In ore, should not contain the shale that cementing properties is strong, phosphorus content is too not high yet, to prevent ore caking and spontaneous combustion.
(2), this shrinkage method of pluses and minuses has structure and production technology is simple, convenient management, can utilize ore deadweight ore drawing, ore recovery ratio is compared with advantages of higher.Shortcoming is that workman is compared with operation under big exposure face, high to the stability requirement of ore deposit rock; Flat field work is heavy, is difficult to realize mechanization; After the back production of first phase mineral building completes, shutoff operation is many and loaded down with trivial details; Overstock a large amount of ores, affect capital turnover.
8, application in practice
Fig. 6 is-120m level, is the polycrystalline substance of-120 m levels to the-horizontal mineral building exploitation of 80m.In figure, II 1206 mineral buildings, II 1214 mineral buildings and II 1212 mineral buildings, just in back production, are all first phase mineral building, until II 1214 mineral buildings and II 1212 mineral building back production complete after, until obturation reaches maximum intensity, can carry out the exploitation of the second stage of mineral building II 1213.At II 1214 mineral buildings and II 1213 mineral buildings, undercut and tunnel scraper lane and ore removal lane between gallery, in way shaft, driving leads to the connecting taxiway of mineral building, and mineral building can enter recovery phase.

Claims (3)

1. a near surface is thick large, mineral building structure compared with inclined orebody exploitation with shallow hole shrinkage method, it is characterized in that: comprise first phase mineral building and the second stage of mineral building along orebody trend space, arranged, the vertical orebody trend of mineral building is arranged, ore body one side is upper dish, opposite side is lower wall, the centre of first phase mineral building bottom is provided with the gallery that undercuts, the centre of second phase mineral building bottom is provided with the scraper lane for first phase mineral building ore removal, drag down between gallery and scraper lane and be connected with ore removal lane, the top of mineral building and bottom are respectively equipped with upper dish transportation lane and the lower wall transportation lane of arranging along orebody trend, the two ends of scraper lane and the gallery that undercuts are connected upper dish transportation lane and the lower wall transportation lane of bottom, after both sides first phase mineral building back production, filling firmly, the scraper lane of first phase mineral building is as the gallery that undercuts of the second stage of mineral building in centre.
2. mineral building structure according to claim 1, it is characterized in that: upper and lower dish leads to horizontal return aircourse above apart from People's Bank of China's ventilating shaft of ore body 4-5 rice driving above-below direction, People's Bank of China's ventilating shaft is positioned at the border of adjacent first phase mineral building and the second stage of mineral building, leads to the connection roadway of mineral building Ke Gong People's Bank of China at the ventilating shaft Nei Chuigao of People's Bank of China every 4-5 rice driving simultaneously.
3. mineral building structure according to claim 1 and 2, is characterized in that: the width of first phase mineral building and the second stage of mineral building is 12 meters.
CN201320408694.3U 2013-07-10 2013-07-10 Room structure of shallow-hole shrinkage mining method for mining near-surface thick, large and more oblique ore body Expired - Fee Related CN203452793U (en)

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CN103967494A (en) * 2014-04-21 2014-08-06 安徽大昌矿业集团有限公司 Mining method for filling after shallow hole shrinkage
CN104632223A (en) * 2015-02-04 2015-05-20 中南大学 Mining environment-reconstructing mobile pumping filling artificial pillar shrinkage mining method
CN105041317A (en) * 2015-07-03 2015-11-11 中国瑞林工程技术有限公司 Medium-length hole shrinkage stoping method
CN107939402A (en) * 2017-12-28 2018-04-20 昆明冶金高等专科学校 The mining methods of firm inclined thick ore body more than a kind of back production ore-rock is medium
CN108222940A (en) * 2018-02-10 2018-06-29 广西华洋矿源材料有限公司 A kind of recovery method of manganese ore
CN111810156A (en) * 2020-08-11 2020-10-23 昆明理工大学 Improved sublevel chamber mining method
CN111828007A (en) * 2020-07-29 2020-10-27 中钢集团马鞍山矿山研究总院股份有限公司 Stoping method for residual studs in underground mine goaf
CN113550751A (en) * 2021-07-23 2021-10-26 长沙矿山研究院有限责任公司 Method for recovering near-surface caving ore body

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103967494A (en) * 2014-04-21 2014-08-06 安徽大昌矿业集团有限公司 Mining method for filling after shallow hole shrinkage
CN104632223A (en) * 2015-02-04 2015-05-20 中南大学 Mining environment-reconstructing mobile pumping filling artificial pillar shrinkage mining method
CN105041317A (en) * 2015-07-03 2015-11-11 中国瑞林工程技术有限公司 Medium-length hole shrinkage stoping method
CN107939402A (en) * 2017-12-28 2018-04-20 昆明冶金高等专科学校 The mining methods of firm inclined thick ore body more than a kind of back production ore-rock is medium
CN108222940A (en) * 2018-02-10 2018-06-29 广西华洋矿源材料有限公司 A kind of recovery method of manganese ore
CN111828007A (en) * 2020-07-29 2020-10-27 中钢集团马鞍山矿山研究总院股份有限公司 Stoping method for residual studs in underground mine goaf
CN111810156A (en) * 2020-08-11 2020-10-23 昆明理工大学 Improved sublevel chamber mining method
CN111810156B (en) * 2020-08-11 2021-07-09 昆明理工大学 Improved sublevel chamber mining method
CN113550751A (en) * 2021-07-23 2021-10-26 长沙矿山研究院有限责任公司 Method for recovering near-surface caving ore body

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