CN103437769B - Combination is reproduced structure medium-length hole ore blast and is worked in coordination with cable bolting afterwards filling mining method - Google Patents
Combination is reproduced structure medium-length hole ore blast and is worked in coordination with cable bolting afterwards filling mining method Download PDFInfo
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- CN103437769B CN103437769B CN201310404154.2A CN201310404154A CN103437769B CN 103437769 B CN103437769 B CN 103437769B CN 201310404154 A CN201310404154 A CN 201310404154A CN 103437769 B CN103437769 B CN 103437769B
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Abstract
The invention discloses a kind of combination to reproduce structure medium-length hole ore blast and work in coordination with cable bolting afterwards filling mining method, adopt downdraft mode substoping, first in upper armor rock, tunnel one and cut jacking road, adopt smooth blasting, after cutting top, construct artificial roof (wherein reserved fill pass) along orebody trend; Integrate the multifunctional tunnel of rock drilling, supporting, ore removal along orebody trend driving in upper armor rock, medium-length hole is adopted to arrange fanhole(s), utilize medium-length hole to arrange wall rock grouting is reinforced and cable bolting coils engineering simultaneously, makes wall rock grouting reinforcing, explosion falls miner's work and cable bolting work " closing three is one "; Adopt drawing back, scraper ore removal, realize ore body safety, efficient, scale back production.These mining methods are applicable to the exploitation of ore body, the uniform firm inclined orebody of country rock, have that to adopt accurate engineering quantity little, and job safety is reliable, back production efficiency high.
Description
Technical field
The present invention relates to a kind of mining methods of underground metalliferous mine, particularly relate to a kind of combination reproduce structure under medium-length hole ore blast work in coordination with cable bolting afterwards filling mining methods, mainly be applicable to ore body roof and floor, upper lower burrs unstable rock, the slant middle thick orebody that the grade of ore is higher.
Background technology
For roof and floor, the unsteady high-grade slant middle thick orebody of upper lower burrs rock crusher, in general employing to or underhand cut and fill stoping carry out back production, successively need during back production to adopt the supporting measure such as anchor pole, anchor net, complex procedures, and staff carries out operation under exposure or under avalanche rock stratum, its production security is poor.The outstanding problem existed adopts to cut engineering quantity greatly, and mining cost is high; Separate zone production operating efficiency is low, is difficult to realize scale exploitation; The operation of upper lower burrs surrounding rock supporting lags behind explosion and to fall ore deposit operation, and loss, the dilution of ore are high, bring very large economic loss.Therefore, roof and floor, upper lower burrs rock crusher become the bottleneck place limiting such ore body safety, efficient, low cost, scale exploitation.
Summary of the invention
Technical problem to be solved by this invention proposes a kind of constructing artificial roof, under upper lower burrs country rock reinforces in advance and reproduce structure with the combination of supporting, realizes ore body safety, combination that efficient, scale exploitation effectively combines reproduces structure medium-length hole ore blast and work in coordination with cable bolting afterwards filling mining method.
In order to solve the problems of the technologies described above, combination provided by the invention is reproduced structure medium-length hole ore blast and is worked in coordination with cable bolting afterwards filling mining method, is stage casing by ore body division, when stage casing divides stope, by upper and lower stage casing stope interlaced arrangement, carries out downdraft mode back production; At ore body lower wall Drilling slot raise, and be that the explosion scope of freedom forms cutting groove, as the explosion scope of freedom of follow-up extensive actual mining with slot raise; Ore body tunnels route of going up a hill in armor rock, is connected with horizontal transport tunnel, form exploiting field transportation system; Cut jacking road at stage casing top board driving and arrive ore body, cut top and construct Man-made False after hours, and reserve fill pass in top board; In upper armor rock, tunnel segmentation connecting taxiway, be communicated with route of going up a hill and arrive ore body; The multifunctional tunnel of rock drilling, supporting, ore removal is integrated at upper armor rock along orebody trend driving by segmentation connecting taxiway; Rock drilling equipment is Drilling fan shaped medium length hole in multifunctional tunnel, forms medium-length hole blasting and to fall ore deposit section and medium-length hole slip casting or cable bolting section; Carry out powder charge, on line, explosion, slip casting or cable bolting operation successively by fan shaped medium length hole, broken ore adopts flat-bottom structure by scraper concentrating mining; The ore of each segmentation is transported to level haulage tunnel through ore removal route, segmentation connecting taxiway, route of going up a hill, then transports earth's surface by mine haulage system according to this; Bashing immediately after stope mining, packing job adopts movable type pumping filling system to be filled with goaf through the casting resin of horizontal drift; The actual conditions of foundation goaf form and country rock steadiness, determine packed height and fill volume, goaf is incomplete top tight filling; Stope builds filling counterfort by laying bricks or stones before carrying out filling in advance, and pre-buried PVC drain pipe, ponding is drained into each stage casing sump.
Adopt the combination of technique scheme to reproduce structure medium-length hole ore blast and work in coordination with cable bolting afterwards filling mining method, make full use of medium-length hole, collaborative slip casting, long anchor cable are installed, explosion falls, and miner does, make full use of the multifunctional tunnel integrating rock drilling, supporting, ore removal function, realize the orderly combination of rock drilling, punching, supporting, ore removal workplace.Be two segmentations by stage casing ore body division, after top is cut at mineral building top, adopt barren rock consolidated fill to construct one deck Man-made False, realize mining environment reconstructing.Rationally determine the height of artificial roof according to stope exposure area, guarantee the stability of Stope roof.By multifunctional tunnel Drilling medium-length hole, fracture grouting is carried out to upper armor rock, thus reinforce breaking surrounding rock.To paragraph ore deposit with medium-length hole blasting, by cable bolting design, long anchor cable is installed, carries out anchor rope grouting, armor rock in supporting, guarantee next segmentation safe working.At the boundary slot raise of country rock lower wall and ore body, be that scope of freedom explosion forms cutting groove, as the scope of freedom of extensive back production with slot raise.In sublevel drilling, supporting, discharging tunnel, Drilling medium-length hole also adopts lateral caving mode broken ore, drawing back; Utilize scraper and flat polycrystalline substance to carry out ore removal, after ore removal, carry out the operation of filling stope immediately; By analyzing Drilling medium-length hole core, determining the boundary line of ore body and upper armor rock, reasonable Arrangement medium-length hole parameter and charge constitution, reducing the loss and dilution of ore.After ore removal, always just measure according to upper dish surrounding rock supporting situation and roof and floor steadiness determination Mixture ratio of backfilling materials, packed height and casting resin, adopt the more low intensive casting resins such as barren rock as far as possible, reduce filling cost.
The invention has the beneficial effects as follows, solve the technical barrier of country rock and the ore body safe and efficient back production of ore body under condition all built on the sand, adopt some support mode, realize combination and reproduce structure, ensure the safety of stope.Make full use of the multifunctional tunnel in armor rock, realize rock drilling, supporting, ore removal function i ntegration, substantially reduce the number and adopt accurate engineering quantity; The ore deposit operation that makes full use of that medium-length hole works in coordination with surrounding rock supporting, explosion falls; Adopt barren rock afterwards filling, reduce mining cost, embody the theory of green mining.These mining methods can realize ore body safety, efficient, green, scale back production.
In sum; the present invention is a kind of constructing artificial roof, under upper lower burrs country rock reinforces in advance and reproduce structure with the combination of supporting, realizes ore body safety, combination that efficient, scale exploitation effectively combines reproduces structure medium-length hole ore blast and work in coordination with cable bolting afterwards filling mining method.
Accompanying drawing explanation
Fig. 1 is that Mining method design front view is namely along C-C line cut-away view in Fig. 2.
Fig. 2 is along A-A line sectional drawing in Fig. 1.
Fig. 3 is along B-B line sectional drawing in Fig. 1.
Fig. 4 is fan shaped medium length hole partial enlarged drawing.
In figure: 1. horizontal transport tunnel, 2. Man-made False, 3. fill pass, 4. anchor cable and medium-length hole, 5. broken ore, 6. slot raise, 7. level haulage tunnel, 8. ore removal route, 9. go up armor rock, 10. multifunctional tunnel, 11. segmentation connecting taxiways, 12. go up a hill route, 13. cut jacking road, 14. fan shaped medium length holes, 15. medium-length hole blastings fall ore deposit section, 16. medium-length hole slip castings or cable bolting section.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
See Fig. 1, Fig. 2, Fig. 3 and Fig. 4, be stage casing by ore body division, when stage casing divides stope, by upper and lower stage casing stope interlaced arrangement, carry out downdraft mode back production.At ore body lower wall Drilling slot raise 6, and with slot raise 6 for the explosion scope of freedom forms cutting groove, as the explosion scope of freedom of follow-up extensive actual mining.Ore body tunnels route 12 of going up a hill in armor rock, is connected with horizontal transport tunnel 1, form exploiting field transportation system.Cut jacking road 13 at stage casing top board driving and arrive ore body, cut top and construct Man-made False 2 after hours, and reserve fill pass 3 in top board.In upper armor rock, tunnel segmentation connecting taxiway 11, be communicated with route of going up a hill and arrive ore body.The multifunctional tunnel 10 of rock drilling, supporting, ore removal is integrated at upper armor rock along orebody trend driving by segmentation connecting taxiway 11; Rock drilling equipment is Drilling fan shaped medium length hole 14 in multifunctional tunnel 10, forms medium-length hole blasting and to fall ore deposit section 15 and medium-length hole slip casting or cable bolting section 16.Carry out the operations such as powder charge, on line, explosion, slip casting or cable bolting successively by fan shaped medium length hole 14, broken ore 5 adopts flat-bottom structure by scraper concentrating mining.The ore of each segmentation is transported to level haulage tunnel 7 through ore removal route 8, segmentation connecting taxiway 11, route 12 of going up a hill, then transports earth's surface by mine haulage system according to this.Bashing immediately after stope mining, packing job adopts movable type pumping filling system to be filled with goaf through horizontal drift 7 casting resin; The actual conditions of foundation goaf form and country rock steadiness, determine packed height and fill volume, goaf is incomplete top tight filling; Stope builds filling counterfort by laying bricks or stones before carrying out filling in advance, and pre-buried PVC drain pipe, ponding is drained into each stage casing sump.
In exploitation process, the geological conditions according to ore body and upper lower burrs country rock adopts suitable support pattern (grouting support or the common supporting of grouting cable anchor), and strengthens the monitoring to strength of filling mass.
Claims (1)
1. combination is reproduced structure medium-length hole ore blast and is worked in coordination with a cable bolting afterwards filling mining method, it is characterized in that: be stage casing by ore body division, when stage casing divides stope, by upper and lower stage casing stope interlaced arrangement, carries out downdraft mode back production; At ore body lower wall Drilling slot raise (6), and with slot raise (6) for the explosion scope of freedom forms cutting groove, as the explosion scope of freedom of follow-up extensive actual mining; Ore body tunnels route (12) of going up a hill in armor rock, is connected with horizontal transport tunnel (1), form exploiting field transportation system; Cut jacking road (13) at stage casing top board driving and arrive ore body, cut top and construct Man-made False (2) after hours, and reserve fill pass (3) in top board; In upper armor rock, tunnel segmentation connecting taxiway (11), be communicated with route of going up a hill and arrive ore body; The multifunctional tunnel (10) of rock drilling, supporting, ore removal is integrated at upper armor rock along orebody trend driving by segmentation connecting taxiway (11); Rock drilling equipment is Drilling fan shaped medium length hole (14) in multifunctional tunnel (10), forms medium-length hole blasting and to fall ore deposit section (15) and medium-length hole slip casting or cable bolting section (16); Carry out powder charge, on line, explosion, slip casting or cable bolting operation successively by fan shaped medium length hole (14), broken ore (5) adopts flat-bottom structure by scraper concentrating mining; The ore of each segmentation is transported to level haulage tunnel (7) through ore removal route (8), segmentation connecting taxiway (11), route of going up a hill (12), then transports earth's surface by mine haulage system according to this; Bashing immediately after stope mining, packing job adopts movable type pumping filling system to be filled with goaf through horizontal drift (7) casting resin; The actual conditions of foundation goaf form and country rock steadiness, determine packed height and fill volume, goaf is incomplete top tight filling; Stope builds filling counterfort by laying bricks or stones before carrying out filling in advance, and pre-buried PVC drain pipe, ponding is drained into each stage casing sump.
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| CN201310404154.2A CN103437769B (en) | 2013-09-06 | 2013-09-06 | Combination is reproduced structure medium-length hole ore blast and is worked in coordination with cable bolting afterwards filling mining method |
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| CN201310404154.2A CN103437769B (en) | 2013-09-06 | 2013-09-06 | Combination is reproduced structure medium-length hole ore blast and is worked in coordination with cable bolting afterwards filling mining method |
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| CN104100270B (en) * | 2014-06-13 | 2016-08-24 | 贵州开磷集团股份有限公司 | A kind of low-angle dip mineral ore Truckless mining method |
| CN105201506B (en) * | 2015-09-06 | 2017-10-17 | 东北大学 | The mining methods of afterwards filling are reinforced before a kind of heir |
| CN105863727B (en) * | 2016-04-21 | 2018-07-31 | 西北矿冶研究院 | Method for treating pillar goaf |
| RU2618541C1 (en) * | 2016-04-27 | 2017-05-04 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Забайкальский государственный университет" (ФГБОУ ВПО "ЗабГУ") | Ore body mining method |
| CN106223958B (en) * | 2016-08-10 | 2017-09-29 | 山东华联矿业股份有限公司 | The slant middle thick orebody subregion rock drilling stage falls ore deposit afterwards filling collaboration mining codes |
| CN106321104A (en) * | 2016-08-31 | 2017-01-11 | 安徽开发矿业有限公司 | Loss-free dilution-free cut slot stoping technology |
| CN106593447B (en) * | 2017-02-24 | 2019-03-05 | 贵州开磷集团股份有限公司 | A kind of underground mining gently inclined medium thick orebody mining methods |
| CN110566255B (en) * | 2019-10-14 | 2021-05-18 | 江西理工大学 | Design and construction method for hanging wall grouting long anchor cable in chamber method for subsection rock drilling stage |
| CN110792439A (en) * | 2019-12-04 | 2020-02-14 | 福建海峡科化富兴建设工程有限公司 | Caving method for horizontal ore pillar after stoping by stage stope room mining method |
| CN111005740A (en) * | 2019-12-19 | 2020-04-14 | 长春黄金研究院有限公司 | Method for controlling surrounding rock of upper and lower walls of stope by medium-length hole pre-grouting |
| CN111706386B (en) * | 2020-06-10 | 2023-04-11 | 武汉工程大学 | Underground roadway rock burst active protection method and underground roadway tunneling method |
| CN112682041B (en) * | 2020-12-25 | 2023-05-12 | 飞翼股份有限公司 | Filling mining method for broken and slowly-inclined thick and large ore body of upper disc |
| CN113775374B (en) * | 2021-07-06 | 2024-02-09 | 山东黄金矿业(莱州)有限公司三山岛金矿 | Interactive upward medium-length hole subsequent filling mining method |
| CN114810078A (en) * | 2022-04-08 | 2022-07-29 | 紫金矿业集团股份有限公司 | Reconstruction method for environment of broken upper and lower plates of 360-degree annular deep hole grouting stope |
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