CN106121648B - A kind of sublevel open stoping mining chassis route ore drawing afterwards filling mining method - Google Patents

A kind of sublevel open stoping mining chassis route ore drawing afterwards filling mining method Download PDF

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Publication number
CN106121648B
CN106121648B CN201610632006.XA CN201610632006A CN106121648B CN 106121648 B CN106121648 B CN 106121648B CN 201610632006 A CN201610632006 A CN 201610632006A CN 106121648 B CN106121648 B CN 106121648B
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ore
segmentation
mining
lane
sublevel
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CN106121648A (en
Inventor
严文炳
雷明礼
张海磊
郭生茂
柴衡山
刘武团
焦满岱
王成财
孟慧媚
高忠
赵文奇
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Northwest Research Institute of Mining and Metallurgy
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Northwest Research Institute of Mining and Metallurgy
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C41/00Methods of underground or surface mining; Layouts therefor
    • E21C41/16Methods of underground mining; Layouts therefor
    • E21C41/22Methods of underground mining; Layouts therefor for ores, e.g. mining placers
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F15/00Methods or devices for placing filling-up materials in underground workings

Abstract

The present invention provides a kind of sublevel open stoping mining chassis route ore drawing afterwards filling mining method, specifically includes block structure division, adopts standard, cutting, the operation of back production ore removal, filling so circulation until stope mining terminates;The present invention is relative to traditional sublevel open stope method, adopt and separate beneficial to ore-rock point, the horsestone in ore body can effectively be picked out, the rate of dilution of ore can be substantially reduced, ensure to supply mineral amount, overcome conventional method and promote and apply difficult problem caused by ore loss and dillution height in back production gently inclined orebody;Meanwhile stope of the present invention is not necessary to stay top-bottom pillar, also it is not required to stay and sets stope studding, it is high compared to conventional method, ore recovery ratio;Quasi- quantities is adopted in saving, reduces cost.

Description

A kind of sublevel open stoping mining chassis route ore drawing afterwards filling mining method
Technical field
The invention belongs to mining methods technical field, more particularly to a kind of sublevel open stoping mining chassis route ore drawing afterwards filling Mining codes.
Background technology
Sublevel open stoping afterwards filling mining method is the vertical direction in nugget, is further subdivided into some segmentations;In each segmentation Mineral building and ore pillar are arranged in level, the ore in the case where each segmentation is adopted is transported from the discharging tunnel of each segmentation respectively;Sublevel mining room returns After adopting, can this segmentation of back production immediately ore pillar and at the same time afterwards filling processing goaf.In recent years, as trackless equipment exists The popularization and application in China, sublevel open stoping afterwards filling mining method have obtained vigorous growth.But traditional sublevel open stoping is afterwards The method of mining by the way of filling is only applicable to inclination and the inclined thick ore body of ore and country rock moderately stable, and being promoted in gently inclined orebody should With difficulty;Each segmentation will dig fragmented transport gallery, cutting tunnel, rock drilling gallery, stowboard and filling to this method at the same time Courtyard etc., causes the shortcomings that this method mining preparation work amount is big;Therefore, take appropriate measures, improve traditional sublevel open stoping heir The method of mining by the way of filling afterwards, overcome its can not be promoted and applied in gently inclined orebody and mining preparation work amount it is big the shortcomings of, for further Promoting sublevel open stoping afterwards filling mining method has highly important positive effect.
The content of the invention
The present invention to solve the problems, such as that mining preparation work amount is big in gently inclined orebody in the prior art, there is provided it is a kind of to be segmented Barnyard mining chassis route ore drawing afterwards filling mining method.
The technical solution adopted by the present invention is:A kind of sublevel open stoping mining chassis route ore drawing afterwards filling mining method, bag Include following steps:
Step A, block structure divides:Nugget arranges that long 50-80m, nugget width is orebody thickness along orebody trend;Ore deposit Block level interval is 40 ~ 60m, indexing height 10-20m;In each segmentation, be alternately arranged along orebody trend direction mineral building and Ore pillar, does not stay and sets top-bottom pillar and studding;
Step B, standard is adopted:Nugget Nei Caiqie, wears arteries and veins transportation roadway driving exploiting field ramp unicom from the stage and is respectively segmented Chuan Mai lanes; Along orebody trend every 25 ~ 40m, an ore-rock drop shaft is tunneled;In each segment level, from segmentation Chuan Mai lanes driving segmentation edge Arteries and veins lane, ore removal route and sublevel drilling lane;Sublevel drilling lane is located at ore body lower wall ore-rock contact surface;Along the pulse lane is located at ore deposit for segmentation In body lower wall country rock, range segment separating rock drilling lane is 8-15m;Ore removal route is arranged in ore body chassis position, and each segmentation is arranged Ore removal route, 8 ~ 12m of each ore removal route spacing;
Step C, cut:In the side of mineral building driving cutting lane, unicom sublevel drilling lane, the disk arrangement cutting in each segmentation Well, to fan shaped medium length hole on Drilling in cutting lane, to cut well as the scope of freedom, in its one or both sides per 5 ~ 8 row of separate explosion, Just cutting groove is formed after explosion, during kerve, upper segment blast border must next 2 ~ 3 artillery salvo hole of segment blast border in advance;
Step D, back production:In segmentation, carry out each step according to the stopping sequence of " upper disk mineral building is preferential, and top mineral building is preferential " and return Adopt work;During back production, first adopt and fill mineral building, then column of digging up mine;After cutting groove is formed, returned from the lateral mineral building opposite side of cutting groove one Adopt, to fan shaped medium length hole on the chisel of sublevel drilling lane, ore caving is carried out by the scope of freedom of cutting groove, per 3 ~ 8 row of separate explosion, upper one point Section explosion border must next 2 ~ 3 artillery salvo hole of segment blast border in advance;
Step E:Ore removal operation carries out in each segmentation, the ore under collapsing, and segmentation is transported to from ore removal route with scraper The nearest ore-rock drop shaft in Chuan Mai lanes slips to the stage and wears arteries and veins transportation roadway and transport;
Step F, fill:After stope mineral building or ore pillar ore removal finish examination, each segmentation ore removal route is carried out in time flexible Closing, and filtration hole is stayed, using upper one segmentation Chuan Mai lanes and cutting well, filling piping is linked into goaf, is carried out mined out Area's filling operation;
Step G:After Tight filling, during obturation hardening is waited, carry out one be segmented adopt and cut, cut and back production work Make;After obturation reaches design strength, adopted into upper one segmentation fill circulation immediately, so circulation is until stope mining terminates.
Further, upper segmentation stope internal cutting well is segmented ventilation shaft and filling well in stope as next at the same time, on One segmentation Chuan Mai lanes also serve as next sublevel fill stoping lane at the same time.
Beneficial effects of the present invention are:Relative to traditional sublevel open stope method, the present invention is adopted beneficial to ore-rock point and separated, The horsestone in ore body can be effectively picked out, the rate of dilution of ore can be substantially reduced, it is ensured that for mineral amount, overcome tradition side Method promotes and applies difficult problem in back production gently inclined orebody caused by ore loss and dillution height;Meanwhile stope of the present invention is not necessary to stay Top-bottom pillar, is also not required to stay and sets stope studding, high compared to conventional method, ore recovery ratio;Add, stope internal cutting well of the present invention At the same time as ventilation shaft and filling well, some mine locatings can also serve as rock drilling lane, ore removal route and filling lane, section with Chuan Mai lanes along the pulse Quasi- quantities is adopted by province, reduces cost.
Brief description of the drawings
Fig. 1 is profile of the present invention on orebody trend direction;
Fig. 2 is the present invention in the profile on orebody trend.
In figure:1. the stage wears 2. mine chute 3. of arteries and veins transportation roadway segmentation Chuan Mai lanes 4. and is segmented 5. ore removal route of lane along the pulse Cut 8. sublevel drilling lane of well, 9. obturation, 10. medium-length hole, 11. goaf in 6- cuttings lane 7..
Embodiment
The present invention is described in further details below in conjunction with the accompanying drawings.
As shown in Fig. 1, Fig. 2, certain 20 °~60 ° of II # slanting angle of ore body of iron ore, 5~15 meters of thickness, in like stratiform Stable distritation, Strike length 1200m, II # ore bodies and its roof and floor country rock belong to moderate stable, and the ore body in limit of mining belongs to more difficult exploitation Iron ore-deposit species, and the iron ore earth's surface cannot be deformed and collapsed.It is first with reference to iron ore mining according to II # orebody occurrences Step design, in -380m stage casings, location selection uses a kind of sublevel open stoping mining of the present invention to the north of II -1 exploration line of -320m stage casings Chassis route ore drawing afterwards filling mining method, specifically comprises the following steps:
Step A, block structure divides:Nugget arranges that long 50m, nugget width is orebody thickness along orebody trend;Nugget rank Duan Gaodu is 40m, indexing height 10m;In each segmentation, mineral building and ore pillar are being alternately arranged along orebody trend direction, is not being stayed If top-bottom pillar and studding;
Step B, standard is adopted:Nugget Nei Caiqie, wears the driving exploiting field ramp unicom of arteries and veins transportation roadway 1 from the stage and is respectively segmented Chuan Mai lanes 3;Along orebody trend every 25 ~ 40m, an ore-rock drop shaft 2 is tunneled;In each segment level, tunnel and divide from segmentation Chuan Mai lanes 3 Section lane 4, ore removal route 5 and sublevel drilling lane 8 along the pulse;Sublevel drilling lane 8 is located at ore body lower wall ore-rock contact surface;Segmentation is along the pulse Lane 4 is located in ore body lower wall country rock, and range segment separating rock drilling lane 8 is 8-15m;Ore removal route 5 is arranged in ore body chassis position, each Ore removal route 5, each 5 spacing 10m of ore removal route are arranged in segmentation;
Step C, cut:In the side of mineral building driving cutting lane 6, unicom sublevel drilling lane 8, disk arrangement is cut in each segmentation Well 7 is cut, to fan shaped medium length hole 10 on Drilling in cutting lane 6, aperture 65mm, array pitch 1.2m, bottom hole pitch 1m, is to cut well 7 The scope of freedom, in its one or both sides per separate explosion 5 ~ 8 row, just forms cutting groove after explosion, during kerve, upper segment blast border Must advanced next 2 ~ 3 artillery salvo hole of segment blast border;
Step D, back production:In segmentation, carry out each step according to the stopping sequence of " upper disk mineral building is preferential, and top mineral building is preferential " and return Adopt work;During back production, first adopt and fill mineral building, then column of digging up mine;After cutting groove is formed, returned from the lateral mineral building opposite side of cutting groove one Adopt, to fan shaped medium length hole 10, aperture 65mm, array pitch 1.5m, bottom hole pitch 1.9m, using cutting groove as certainly on the chisel of sublevel drilling lane 8 Ore caving is carried out by face, per separate explosion 3 ~ 8 row, upper segment blast border must next 2 ~ 3 artillery salvo hole of segment blast border in advance;
Step E:Ore removal operation carries out in each segmentation, the ore under collapsing, and segmentation is transported to from ore removal route 5 with scraper The nearest ore-rock drop shaft 2 in Chuan Mai lanes 3 slips to the stage and wears arteries and veins transportation roadway 1 and transport;
Step F, fill:After stope mineral building or ore pillar ore removal finish examination, flexibility is carried out to each segmentation ore removal route 5 in time Closing, and filtration hole is stayed, using upper one segmentation Chuan Mai lanes 3 and cutting well 7, filling piping is linked into goaf 11, is carried out 11 filling operation of goaf;
Step G:After Tight filling, during waiting obturation 9 to harden, carry out one be segmented adopt and cut, cut and back production Work;After obturation 9 reaches design strength, adopted into upper one segmentation fill circulation immediately, so circulation is until stope mining terminates.
Long and medium hole drilling is carried out using YGZ-90 rock drills in sublevel drilling lane and cutting lane, and kerve blasthole and side collapse big gun Kong Jun is using vertical fan-shaped arrangement, and aperture 65mm, 1.2 meters of kerve array pitch, 1 meter of bottom hole pitch, side collapses 1.5 meters of burden, bottom hole pitch 1.9 rice.
Explosion uses hole-bottom blast blasting technique, once multiple rows of with graininess ammonium nitrate-fuel oil mixture, BQF-100 explosive loader powder charges Msdelayed light emission delaying blasting;Stope ore drawing 2m3 diesel LHDs, carry out ore removal in each segmentation extraction ore deposit route, pour into point Mine truck is loaded by ore drawing machine after section drop shaft to stage casing level, then stage drop shaft is transported to down toward transport water by mine truck It is flat, mine car is then put into by vibration ore dumping machine, is transported to main shaft Ore-pass failure.
This mining codes is safe and reliable, and the mining production duration above, in quality is better than other mining methods of mine use, Obtain good economic benefits and social benefit.

Claims (2)

  1. The chassis route ore drawing afterwards filling mining method 1. a kind of sublevel open stoping is dug up mine, it is characterised in that include the following steps:
    Step A, block structure divides:Nugget arranges that long 50-80m, nugget width is orebody thickness along orebody trend;Nugget rank Duan Gaodu is 40 ~ 60m, indexing height 10-20m;In each segmentation, mineral building and ore deposit are being alternately arranged along orebody trend direction Column, does not stay and sets top-bottom pillar and studding;
    Step B, standard is adopted:Nugget Nei Caiqie, arteries and veins transportation roadway is worn from the stage(1)Driving exploiting field ramp unicom is respectively segmented Chuan Mai lanes (3);Along orebody trend every 25 ~ 40m, an ore-rock drop shaft is tunneled(2);In each segment level, from segmentation Chuan Mai lanes(3) Driving is segmented lane along the pulse(4), ore removal route(5)With sublevel drilling lane(8);Sublevel drilling lane(8)Connect positioned at ore body lower wall ore-rock At contacting surface;It is segmented lane along the pulse(4)In ore body lower wall country rock, range segment separating rock drilling lane(8)For 8-15m;Ore removal route is arranged In ore body chassis position, ore removal route, 8 ~ 12m of each ore removal route spacing are arranged in each segmentation;
    Step C, cut:In the side of mineral building driving cutting lane(6), unicom sublevel drilling lane(8), disk arrangement is cut in each segmentation Cut well(7), in cutting lane(6)To fan shaped medium length hole on interior Drilling(10), to cut well(7)For the scope of freedom, in its side or two Side just forms cutting groove per separate explosion 5 ~ 8 row after explosion, during kerve, upper segment blast border must in advance it is next be segmented it is quick-fried 2 ~ 3 artillery salvo hole of edge damage circle;
    Step D, back production:In segmentation, each step back production work is carried out according to the stopping sequence of " upper disk mineral building is preferential, and top mineral building is preferential " Make;During back production, first adopt and fill mineral building, then column of digging up mine;After cutting groove is formed, back production is carried out from the lateral mineral building opposite side of cutting groove one, In sublevel drilling lane(8)To fan shaped medium length hole on chisel(10), ore caving is carried out by the scope of freedom of cutting groove, per 3 ~ 8 row of separate explosion, on One segment blast border must next 2 ~ 3 artillery salvo hole of segment blast border in advance;
    Step E:Ore removal operation carries out in each segmentation, the ore under collapsing, from ore removal route(5)Segmentation is transported to scraper to wear Arteries and veins lane(3)Nearest ore-rock drop shaft(2)The stage of slipping to wears arteries and veins transportation roadway(1)Transport;
    Step F, fill:After stope mineral building or ore pillar ore removal finish examination, in time to each segmentation ore removal route(5)Carry out flexible envelope Close, and stay filtration hole, utilize upper one segmentation Chuan Mai lanes(3)With cutting well(7), filling piping is linked into goaf(11)It is interior, Carry out goaf(11)Filling operation;
    Step G:After Tight filling, obturation is being waited(9)During hardening, accurate adopting for a segmentation, cutting and back production work are carried out Make;Obturation(9)After reaching design strength, adopted into upper one segmentation fill circulation immediately, so circulation is until stope mining terminates.
  2. 2. a kind of sublevel open stoping mining chassis route ore drawing afterwards filling mining method according to claim 1, its feature exist In:Upper segmentation stope internal cutting well(7)At the same time as ventilation shaft and filling well in next segmentation stope, upper segmentation Chuan Mai lanes (3)Also serve as next sublevel fill stoping lane at the same time.
CN201610632006.XA 2016-08-04 2016-08-04 A kind of sublevel open stoping mining chassis route ore drawing afterwards filling mining method Active CN106121648B (en)

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CN109322668B (en) * 2018-10-16 2020-08-25 长沙矿山研究院有限责任公司 Method for drawing groove in steeply inclined and extremely unstable ore body
CN109630115B (en) * 2018-11-16 2020-07-24 中国恩菲工程技术有限公司 Sublevel open stope subsequent filling mining method for gently inclined medium-thickness ore body
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