CN101725351A - Filling stope pillar recovery mining method - Google Patents
Filling stope pillar recovery mining method Download PDFInfo
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- CN101725351A CN101725351A CN200810157786A CN200810157786A CN101725351A CN 101725351 A CN101725351 A CN 101725351A CN 200810157786 A CN200810157786 A CN 200810157786A CN 200810157786 A CN200810157786 A CN 200810157786A CN 101725351 A CN101725351 A CN 101725351A
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Abstract
The invention relates to a filling stope pillar recovery mining method. Because drilling is carried out below an inclined plane of a safer ore-breaking upper layer, recovery of inbreak of obturation lagging behind part of ore body is ensured, the obturation is avoided to be mixed into ore body heap, the ore recovery rate is improved and the dilution and the loss of the ore are reduced. Meanwhile, because the construction of other development engineering is not carried out, the ore removal efficiency and the stripping ratio are far higher than those of other pillar recovery methods. Finally, the obturation inbreak naturally piles up and extrudes the stope inclined plane to form an active pressure so as to play a role of a certain support on the stope top plate and provide a subsequent drilling operation platform for effectively and safely recovering pillars. The obturation gravity is converted into the support force of the stope top plate so as to reduce the instability of the pillar recovery process and ensure the safety of the equipment and the personnel in the subsequent works of drilling, ore removal and the like. The invention is suitable for stope recovery of a filling mining method, wherein the rock mass is firm, the protodyakonov scale of hardness is 7-12, and the pillar thickness is 5-9 m.
Description
Technical field:
The present invention relates to a kind of mining codes, particularly a kind of filling stope pillar recovery mining method.
Background technology:
At present, the a lot of methods of mining by the way of filling that adopt of the non-coal underground mine exploitation of China, be about to nugget and be divided into mineral building and ore pillar, the post of digging up mine behind the mining room earlier, the method can cause the ore pillar distortion even destroy, threaten the safety of operation section and increase the complicated of pillar recovery even cause a large amount of of subterranean resource to overstock and loss, the back production condition of ore pillar is poorer than mineral building back production condition like this, the technical-economic index of pillar recovery is than mineral building difference, shows that especially the ore dilution rate and the loss late of back production of ore pillar is more much bigger than mineral building.
According to statistics, ore pillar ore deposit amount proportion is about about the 20-50% of whole quarry amount, can reach 50-60% individually, the mining conditions of down-hole remnant pillar is very complicated, be a great problem of current mining technique, at present, many mines are when reclaiming the foundation resource, usually because run into technology or difficulty economically, and do not reach expected effect.Therefore, the technology of research remnant pillar exploitation is sought the science approach that addresses this problem, and all has crucial meaning for abundant recovery useful resources, assurance sustained economic development and raising bargh economic benefit.
Summary of the invention:
Purpose of the present invention is exactly to provide a kind of non-coal underground mine to hang down loss and dilution, safety, efficient, low-cost, safe coefficient is high filling stope pillar recovery mining method.
The object of the present invention is achieved like this:
A kind of filling stope pillar recovery mining method is characterized in that:
1. utilize that back production is former has living space and the ore removal system, near the layering of stope bottom column stope the time, in advance stope is arranged as widely 7～10 meters, middlely keep 2 meters studdings, the stope top board is high 2.5～3.5 meters;
2. coil the centre position at stope on, the slot raise of constructing, specification is 2.0 * 2.0 meters, highly is 5～10 meters supreme stage casing stopes layer base plate that undercut, as the Luo Kuang scope of freedom, initial inclined-plane;
3. fall the ore deposit until drawing tailings to carrying out the layering inclined-plane around the slot raise, retreat the ore deposit then by row;
4. the ore deposit that falls is divided into three layers, lower two layers, ore body falls within inbreak obturation top, above one deck adopt the 3m drilling rod to carry out rock drilling, form the plane after, explosion;
5. after adopting local fan ventilation, use the electric LHD ore removal, ore removal adopts original ore removal system;
6. with the obturation for the rock drilling job platform carries out next ore deposit of circulating, finish until the back production ore body.
An optimum implementation of the present invention is: layering inclined-plane last forced caving top, the ore deposit obturation that falls, the obturation inbreak is piled up in the Luo Kuang inclined-plane naturally.
The invention has the advantages that:
1, because employing is carried out rock drilling below safer inclined-plane, Luo Kuang upper strata, guaranteed that the inbreak of obturation lags behind the back production of part ore body, avoid obturation to sneak into the quick-fried heap of ore body, improve ore recovery ratio, the dilution and the loss of ore have been reduced, owing to do not carry out the construction that other adopt accurate engineering, its ore removal efficient and Cai Qie are than the foundation recovery method that is higher than other far away simultaneously.
2, because last obturation inbreak is piled up naturally, the Luo Kuang inclined-plane is pushed, form active pressure, the stope top board has been played certain support action, and follow-up rock drilling job platform is provided, make the stope foundation can carry out safety, high efficiency recovery.
3, obturation gravity is converted into the support force of stope top board, reduces the insecurity in the stope foundation removal process, guarantees the safety of personnel, equipment in the follow-up works such as rock drilling, ore removal.
Description of drawings:
Fig. 1: be stope floor map of the present invention.
Fig. 2: be the vertically vertical perspective view of stope of the present invention.
Fig. 3: be stope generalized section of the present invention.
1, stope foundation 2, big gun hole 3, quick-fried fall ore 4, slot raise 5, obturation 6, stope connecting taxiway 7, studding 8, segmentation lane 9, ore pass
The specific embodiment:
1, the ore body height is the existing supreme stage casing of the stope top board stope layer base plate that undercut, 8.0 meters of average heights, 16 meters of mean breadths.Vertical orebody trend is arranged two bottom column stope stopes, and each stope is wide 7 meters, 2 meters studdings of middle reservation.
2, each stope on slot raise of dish construction, specification is 2.0 * 2.0 meters, highly is 8 meters supreme stage casing stopes layer base plate that undercut, as the Luo Kuang scope of freedom, initial inclined-plane.
3, adopt 7655 pusher leg drills, nominal air delivery 60l/s, frequency of impact 35Hz, drill bit are the yi word pattern drill bit of Φ 40mm, the boring of cutter dip-parallel, inclination angle 60 degree.
4, behind the formation working face, arrange 1.2 meters of ore deposit spacings, 0.7 meter of minimum burden, every hole powder charge 11 volumes, continuous charging, explosion.Last row adopts smooth blasting, 0.6～0.7 meter of borehole spacing, 0.6 meter of minimum burden, each artillery salvo hole detonate adopt have between effluxing millisecond millisecond detonating mode, adopt electric cap to ignite detonator and detonate.
5, behind the formation slot raise, at first fall the ore deposit until drawing tailings, retreat the ore deposit then by row carrying out the layering inclined-plane around the courtyard.The ore deposit that falls is divided into three layers, lower two layers, and ore body falls within inbreak obturation top.
6, the stope ore removal adopts the CYE1.5 electric LHD, and ore shovels ore pass to the stope arteries and veins by scraper, by descending the stage casing electric locomotive to be transported to discharge point, after fragmentation by skip hoisting to the face of land.
Claims (2)
1. filling stope pillar recovery mining method is characterized in that:
1. utilize that back production is former has living space and the ore removal system, near the bottom column stope layering time, in advance stope is arranged as widely 7～10 meters, middlely keep 2 meters studdings, the stope top board is high 2.5～3.5 meters;
2. coil the centre position at stope on, cut a courtyard, specification is 2.0 * 2.0 meters, highly is 5～10 meters supreme stage casing stopes layer base plate that undercut, as the Luo Kuang scope of freedom, initial inclined-plane;
3. fall the ore deposit until drawing tailings to carrying out the layering inclined-plane around the courtyard, retreat the ore deposit then by row;
4. the ore deposit that falls is divided into three layers, lower two layers, ore body falls within inbreak obturation top, above one deck adopt the 3m drilling rod to carry out rock drilling, form the plane after, explosion;
5. after adopting local fan ventilation, use the electric LHD ore removal, ore removal adopts original ore removal system;
6. with the obturation for the rock drilling job platform carries out next ore deposit of circulating, finish until the back production ore body.
2. a kind of filling stope pillar recovery mining method according to claim 1 is characterized in that layering inclined-plane last forced caving top, the ore deposit obturation that falls, and the obturation inbreak is piled up in the Luo Kuang inclined-plane naturally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810157786A CN101725351A (en) | 2008-10-21 | 2008-10-21 | Filling stope pillar recovery mining method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810157786A CN101725351A (en) | 2008-10-21 | 2008-10-21 | Filling stope pillar recovery mining method |
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| CN101725351A true CN101725351A (en) | 2010-06-09 |
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| CN200810157786A Pending CN101725351A (en) | 2008-10-21 | 2008-10-21 | Filling stope pillar recovery mining method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678122A (en) * | 2012-05-21 | 2012-09-19 | 山东黄金矿业(莱州)有限公司三山岛金矿 | Improved inlet-route stoping method for large, thick and cracked ores under scattered body through top and bottom column |
| CN103510984A (en) * | 2013-10-23 | 2014-01-15 | 中国矿业大学 | Method for designing filling mining mass ratio of solid filling and coal mining |
| CN106522955A (en) * | 2016-12-05 | 2017-03-22 | 广西大学 | Studding recovery method for reconstructing covering layer through dead zone wastefill and top surrounding rock spallation collaboratively |
| CN106837332A (en) * | 2017-03-03 | 2017-06-13 | 长沙矿山研究院有限责任公司 | Mechanization step room and pillar stoping |
| CN110905515A (en) * | 2019-11-25 | 2020-03-24 | 南华大学 | Combined filling mining method for complex ore body |
| CN111997615A (en) * | 2020-08-17 | 2020-11-27 | 海南矿业股份有限公司 | Short raise and wedge-shaped blast hole combined slot-drawing method |
| CN112282837A (en) * | 2020-10-27 | 2021-01-29 | 中冶沈勘秦皇岛工程设计研究总院有限公司 | Novel underground mine mining and charging arrangement form |
| CN113700481A (en) * | 2021-09-16 | 2021-11-26 | 铜陵有色金属集团股份有限公司 | Zonal control filling continuous mining method for isolating ore pillars in underground goaf panel area |
-
2008
- 2008-10-21 CN CN200810157786A patent/CN101725351A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678122A (en) * | 2012-05-21 | 2012-09-19 | 山东黄金矿业(莱州)有限公司三山岛金矿 | Improved inlet-route stoping method for large, thick and cracked ores under scattered body through top and bottom column |
| CN103510984A (en) * | 2013-10-23 | 2014-01-15 | 中国矿业大学 | Method for designing filling mining mass ratio of solid filling and coal mining |
| CN103510984B (en) * | 2013-10-23 | 2015-05-20 | 中国矿业大学 | Method for designing filling mining mass ratio of solid filling and coal mining |
| CN106522955A (en) * | 2016-12-05 | 2017-03-22 | 广西大学 | Studding recovery method for reconstructing covering layer through dead zone wastefill and top surrounding rock spallation collaboratively |
| CN106837332A (en) * | 2017-03-03 | 2017-06-13 | 长沙矿山研究院有限责任公司 | Mechanization step room and pillar stoping |
| CN110905515A (en) * | 2019-11-25 | 2020-03-24 | 南华大学 | Combined filling mining method for complex ore body |
| CN111997615A (en) * | 2020-08-17 | 2020-11-27 | 海南矿业股份有限公司 | Short raise and wedge-shaped blast hole combined slot-drawing method |
| CN112282837A (en) * | 2020-10-27 | 2021-01-29 | 中冶沈勘秦皇岛工程设计研究总院有限公司 | Novel underground mine mining and charging arrangement form |
| CN113700481A (en) * | 2021-09-16 | 2021-11-26 | 铜陵有色金属集团股份有限公司 | Zonal control filling continuous mining method for isolating ore pillars in underground goaf panel area |
| CN113700481B (en) * | 2021-09-16 | 2024-01-05 | 安徽铜冠产业技术研究院有限责任公司 | Zone control filling continuous mining method for underground goaf tray zone isolated ore pillar |
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Open date: 20100609 |