CN103790588B - A kind of gently inclined orebody is from slipping mining methods - Google Patents

A kind of gently inclined orebody is from slipping mining methods Download PDF

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Publication number
CN103790588B
CN103790588B CN201410018145.4A CN201410018145A CN103790588B CN 103790588 B CN103790588 B CN 103790588B CN 201410018145 A CN201410018145 A CN 201410018145A CN 103790588 B CN103790588 B CN 103790588B
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cutting groove
ore
slipping
orebody
preparatory work
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CN103790588A (en
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金宇松
宋廷琳
曾祥永
罗正威
金宇建
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Guizhou Kailin Design Institute Co. Ltd.
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Phosphorylcholine Group Limited-Liability Co Is Opened In Guizhou
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Abstract

The invention discloses a kind of gently inclined orebody from slipping mining methods, the method comprise ore body division → adopt accurate construction → cutting groove construction → cutting groove supporting → get the end → step such as brushing back production → ore removal → filling.The method only carries out Anchor Cable Net Supports to cutting groove, significantly can reduce mining cost; Owing to carrying out Anchor Cable Net Supports to cutting groove, and connected anchor cable by flexible steel band, make top board be a hanging integral, stability increases, and realizes safety coal extraction; Ore bodies brushing simultaneously in cutting groove both sides is detonated, with in the past one-sided move back adopt compared with back production time shorten half, efficiency significantly promotes, and reduces stope open-assembly time, promotes safety; Pass through bottom application work simultaneously, ore can have been increased from degree of slipping, promote back production efficiency.

Description

A kind of gently inclined orebody is from slipping mining methods
Technical field
The present invention relates to a kind of method of mining by the way of filling, being specifically related to a kind ofly be applicable to the slanting angle of ore body is little, ore can not slip certainly gently inclined orebody from slipping mining methods.
Background technology
The method of mining by the way of filling is the exploitation method that current mineral resources generally adopt, mining with stowing artificial supporting mining codes owned by France.In mineral building or nugget, along with the propelling of stope, send into filler to goaf, to carry out underground pressure management, to control country rock avalanche and surface movement, and carry out back production in the obturation formed or under its protection.The method of mining by the way of filling is divided into single zone compaction method, overhand cut and fill stoping, underhand cut and fill stoping and sublevel fill stoping method etc.When this kind of uneasily mining orebody of exploitation slight slope and thin ore body, do not allow the condition of avalanche at roof strata under, single zone compaction method is uniquely available mining methods.Slight slope and thin ore body exploitation can not realize from slipping by gravity, and is difficult to realize massive mechanical equalization due to space constraint.
Publication No. is that the patent document of CN103147761A discloses a kind of gentle dip loose roof lean ore bed filling mining method.Its technical scheme is: first mineral deposit is divided into panel, and panel is divided into band, arranges and adopts accurate and cutting roadway; Explosion is rejected institute and is adopted the loose roof of band again, body of digging up mine; Then filling is carried out: the dead zone formed after the barren rock grouting filling N-2 Striping noise that N band and N+1 band rejecting loose roof produce, filling width is the half of strip width, as N-2 band barren rock grouting filling 10 ~ 20m, second half after the dead zone formed after starting tailing-filled N-3 Striping noise and N-4 band barren rock grouting filling, tailing-filledly in stowing operation lags behind barren rock grouting filling 10 ~ 20m all the time; Wherein N=2k+1, k are the integer of >=2.Mineral deposit is divided into panel by the program, then panel is divided into band, then exploits one by one and intersects filling.The program compares the exploitation being applicable to loose roof lean ore bed, and for part slight slope and thin ore body, its inclination angle < 35 °, ore can not realize from slipping by gravity, cause ore losses comparatively large, need repeatedly production ore be carried out, and use slagging-off equipment that the ore being deposited in base plate is clawed, production efficiency is declined, and the back production rate of recovery reduces; And Anchor Cable Net Supports must be carried out to whole exposure barnyard, cause the problems such as support cost is high, labour intensity is large, work efficiency is low; In addition, traditional method of mining by the way of filling adopts one-sided ignition to move back the technology of adopting, and back production speed is lower, makes stope open-assembly time longer, can produce larger potential safety hazard.
Summary of the invention
The object of the invention is to: provide a kind of gently inclined orebody from slipping mining methods, to solve, ore losses existing for traditional slight slope and thin ore body recovery process is large, efficiency is low, and cost is high, labour intensity is large, work efficiency is low and there is the problem of larger potential safety hazard.
The object of the invention is to realize by following technical solution:
A kind of gently inclined orebody is from slipping mining methods, and the method comprises the following steps:
A, ore body division: be several panels by ore body division along orebody trend, each panel is evenly divided into several mineral buildings, by orebody thickness, mineral building is divided into upper and lower two layerings, and the distance between adjacent two mineral buildings is 20m;
B, adopt accurate construction: treating that quarry roof portion and bottom tunnel higher slice in-vein preparatory work tunnel and lower leaf in-vein preparatory work tunnel respectively, in the middle part of lower leaf in-vein preparatory work tunnel, driving has the mineral building crossdrift perpendicular with it, and mineral building crossdrift front end driving has the outer development heading of arteries and veins;
C, cutting groove are constructed: treating to offer the cutting groove that width is 4m in the middle part of exploitation mineral building, cutting groove gradient is identical with ore body, and cutting groove and higher slice in-vein preparatory work tunnel, lower leaf in-vein preparatory work tunnel are all vertical;
D, cutting groove supporting: be fitted with the anchor cable that some rows are evenly arranged at cutting groove upper surface, anchor cable coordinates bolting with wire mesh cutting groove, and anchor cable one arranges two, array pitch 4m, connects, make cutting groove become as a whole with ore body roof between anchor cable row by flexible steel band;
E, get the end: the end is got at two places, and a place is that cutting groove is got at the bottom of base plate barren rock, increase the slanting angle of ore body and ore from degree of slipping, the end, is got for higher slice in-vein preparatory work tunnel ore by another place;
F, brushing back production: respectively arrange that medium-length hole array pitch is 4m to row's medium-length hole with medium-length hole chassis in cutting groove both sides, load explosion unit in medium-length hole, side one is arranged and detonated simultaneously, throws ore in cutting groove;
G, ore removal: utilize the remote control excavator that maximum excavation distance is 12m to take off in cutting groove by the ore be scattered in outside cutting groove, the ore scraper in cutting groove is gone out mining area and completes ore removal by recycling scraper;
H, filling: dry stowing, carry out filling with ardealite and down-hole waste residue to barnyard after back production.
In described step B, higher slice in-vein preparatory work tunnel and lower leaf in-vein preparatory work tunnel are tunneled simultaneously.
In described step B, higher slice in-vein preparatory work roadway construction has carried out the end after completing immediately.
The long 5m of the anchor cable arranged in described step D, spacing 2m.
In described step e, cutting groove gets end backrake is 50 °.
The invention has the beneficial effects as follows:
Compared with prior art, gently inclined orebody provided by the invention is from slipping mining methods, and it has the following advantages:
1, only carry out Anchor Cable Net Supports to cutting groove, the new top board not supporting exposed, can save 72, anchor net in a mineral building, anchor pole 360, anchor cable 16, significantly reduces mining cost;
2, owing to carrying out Anchor Cable Net Supports to cutting groove, and connected anchor cable by flexible steel band, make top board be a hanging integral, stability increases, and realizes safety coal extraction;
3, realize high-recovery back production, the end has been carried out to cutting groove (base plate) and higher slice ore body, upper lower leaf through place peak abutment is reclaimed, utilizes excavator scraping, production ore as much as possible in addition, make the rate of recovery reach more than 90%;
4, realize fast extraction, owing to detonating to the simultaneously brushing of cutting groove both sides ore body, with in the past one-sided move back adopt compared with back production time shorten half, achieve fast extraction, reduce stope open-assembly time, improve safety.
In sum, the present invention can realize low cost, high safety, high-recovery fast extraction.
Accompanying drawing explanation
Fig. 1 is that flat sectional drawing arranged by stope of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is cutting groove supporting figure in the present invention;
Fig. 4 is the I-I sectional view of Fig. 3;
Fig. 5 is that in the present invention, stope explosion falls schematic diagram behind ore deposit;
Fig. 6 is the A-A sectional view of Fig. 5.
Detailed description of the invention
Below in conjunction with drawings and Examples, technical scheme of the present invention is described further, but described in required protection domain is not limited to;
Embodiment: to the green vegetables of Central Guizhou rush stage casing, ore deposit 820 carry out mining with stowing time, its slanting angle of ore body only has about 35 °, the ore after explosion can not be made under gravity from slipping, cause ore losses larger, and anchor net, rope supporting must be carried out to whole exposure barnyard, cause support cost large, work efficiency is low.
Gently inclined orebody provided by the invention is now adopted to carry out filling mining from slipping mining methods to this ore body.First carry out ore body division: be several panels along orebody trend by ore body division, each panel is evenly divided into several mineral buildings, by orebody thickness, mineral building is divided into upper and lower two layerings, and the distance between adjacent two mineral buildings is 20m; Adopt accurate construction: treating that higher slice in-vein preparatory work tunnel and lower leaf in-vein preparatory work tunnel are tunneled respectively in quarry roof portion and bottom simultaneously, the end has been carried out immediately after higher slice in-vein preparatory work roadway construction completes, by tunnel pucking part remove, avoid the loss of lower leaf through place ore, in the middle part of lower leaf in-vein preparatory work tunnel, driving has the mineral building crossdrift perpendicular with it, and mineral building crossdrift front end driving has the outer development heading of arteries and veins; Cutting groove is constructed: treating to offer the cutting groove that width is 4m in the middle part of exploitation mineral building, cutting groove gradient is identical with ore body, and cutting groove and higher slice in-vein preparatory work tunnel, lower leaf in-vein preparatory work tunnel are all vertical; Complete form as depicted in figs. 1 and 2.Cutting groove supporting is carried out: at the some long 5m of cutting groove upper surface plug-in mounting by form as shown in Figure 3 and Figure 4, between array pitch be 2 × 4m and the anchor cable be evenly arranged, anchor cable coordinates bolting with wire mesh cutting groove, anchor cable one arranges two, connect by flexible steel band between anchor cable row, make cutting groove become as a whole with ore body roof.Owing to only carrying out Anchor Cable Net Supports to cutting groove, the new top board not supporting exposed, can save 72, anchor net in a mineral building, anchor pole 360, anchor cable 16, significantly reduces mining cost while ensureing normal support capacity.Get the end: the end is got at two places, a place is that cutting groove is got at the bottom of base plate barren rock, and after getting the end, cutting groove base plate inclination angle is 50 °, and increase the slanting angle of ore body and ore degree of slipping certainly, the end is got for higher slice in-vein preparatory work tunnel ore by another place.Form carries out brushing back production as shown in Figure 5 and Figure 6: respectively arrange row's medium-length hole with medium-length hole chassis in cutting groove both sides, medium-length hole array pitch is 4m, distance higher slice in-vein preparatory work tunnel 2m, explosion unit is loaded in medium-length hole, side one is arranged and is detonated simultaneously, utilization detonates impact force by ore throwing in cutting groove, and the ore under throwing realizes gravity from slipping under the cutting groove base plate effect at 50 ° of inclination angles, makes ore slide to bottom cutting groove; Ore removal: utilize the remote control excavator that maximum excavation distance is 12m to take off in cutting groove by the ore be scattered in outside cutting groove, the ore scraper in cutting groove is gone out mining area and completes ore removal by recycling scraper; Filling: dry stowing, carries out filling with ardealite and down-hole waste residue to barnyard after back production.

Claims (5)

1. gently inclined orebody is from slipping mining methods, it is characterized in that: the method comprises the following steps:
A, ore body division: be several panels by ore body division along orebody trend, each panel is evenly divided into several mineral buildings, by orebody thickness, mineral building is divided into upper and lower two layerings, and the distance between adjacent two mineral buildings is 20m;
B, adopt accurate construction: treating that quarry roof portion and bottom tunnel higher slice in-vein preparatory work tunnel and lower leaf in-vein preparatory work tunnel respectively, in the middle part of lower leaf in-vein preparatory work tunnel, driving has the mineral building crossdrift perpendicular with it, and mineral building crossdrift front end driving has the outer development heading of arteries and veins;
C, cutting groove are constructed: treating to offer the cutting groove that width is 4m in the middle part of exploitation mineral building, cutting groove gradient is identical with ore body, and cutting groove and higher slice in-vein preparatory work tunnel, lower leaf in-vein preparatory work tunnel are all vertical;
D, cutting groove supporting: be fitted with the anchor cable that some rows are evenly arranged at cutting groove upper surface, anchor cable coordinates bolting with wire mesh cutting groove, and anchor cable one arranges two, array pitch 4m, connects, make cutting groove become as a whole with ore body roof between anchor cable row by flexible steel band;
E, get the end: the end is got at two places, and a place is that cutting groove base plate barren rock gets the end, increase the slanting angle of ore body and ore from degree of slipping, the end, is got for higher slice in-vein preparatory work tunnel ore by another place;
F, brushing back production: respectively arrange that medium-length hole array pitch is 4m to row's medium-length hole with medium-length hole chassis in cutting groove both sides, load explosion unit in medium-length hole, side one is arranged and detonated simultaneously, throws ore in cutting groove;
G, ore removal: utilize the remote control excavator that maximum excavation distance is 12m to take off in cutting groove by the ore be scattered in outside cutting groove, the ore scraper in cutting groove is gone out mining area and completes ore removal by recycling scraper;
H, filling: dry stowing, carry out filling with ardealite and down-hole waste residue to barnyard after back production.
2. gently inclined orebody according to claim 1 is from slipping mining methods, it is characterized in that: in described step B, higher slice in-vein preparatory work tunnel and lower leaf in-vein preparatory work tunnel are tunneled simultaneously.
3. gently inclined orebody according to claim 1 is from slipping mining methods, it is characterized in that: in described step B, higher slice in-vein preparatory work roadway construction has carried out the end after completing immediately.
4. gently inclined orebody according to claim 1 is from slipping mining methods, it is characterized in that: the long 5m of the anchor cable arranged in described step D, spacing 2m.
5. gently inclined orebody according to claim 1 is from slipping mining methods, it is characterized in that: in described step e, cutting groove gets end backrake is 50 °.
CN201410018145.4A 2014-01-15 2014-01-15 A kind of gently inclined orebody is from slipping mining methods Active CN103790588B (en)

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CN106089236A (en) * 2016-07-28 2016-11-09 北京昊华能源股份有限公司 A kind of district cross-cut coal seam notch overall structure and driving method

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CN103982186B (en) * 2014-06-10 2016-01-20 山东黄金矿业(莱州)有限公司三山岛金矿 The vertical Inclined strips sublevel caving of oper cylinler retrusive
CN104343453B (en) * 2014-08-29 2016-08-17 武汉科技大学 Thick mineral deposit filling mining method in a kind of low-angle dip
CN104358574B (en) * 2014-09-04 2016-06-01 广东安元矿业勘察设计有限公司 The horizontal room-and-pillar stoping of gently inclined orebody
CN104632220B (en) * 2014-12-09 2017-01-25 中南大学 Mining method with adjustable and controllable structure size of gentle dip medium-thickness ore body strip column reconstructed stope
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
CN106948819A (en) * 2017-05-09 2017-07-14 长春黄金研究院 A kind of shrinkage and breast method for slipping formula ore chute ore removal certainly
CN106968672B (en) * 2017-05-18 2019-02-01 中国恩菲工程技术有限公司 The cutting kerve method on precut shield top is carried out to ore body
CN107227957B (en) * 2017-06-21 2019-06-25 远安县燎原矿业有限责任公司 A kind of slight slope and thin ore body compartment Dry-placed fill method
CN107524469B (en) * 2017-07-25 2019-05-28 中南大学 A kind of gently inclined orebody paneling barren rock and the cementing combination filling method of tailings
CN110080773A (en) * 2019-05-24 2019-08-02 贵州开磷有限责任公司 A kind of gently inclined orebody reserves the filling mining method of cap pillar extraction

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CN106089236B (en) * 2016-07-28 2018-03-02 北京昊华能源股份有限公司 A kind of district cross-cut coal seam notch overall structure and driving method

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