CN101539020A - Upward layered mining method - Google Patents
Upward layered mining method Download PDFInfo
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- CN101539020A CN101539020A CN200910043192A CN200910043192A CN101539020A CN 101539020 A CN101539020 A CN 101539020A CN 200910043192 A CN200910043192 A CN 200910043192A CN 200910043192 A CN200910043192 A CN 200910043192A CN 101539020 A CN101539020 A CN 101539020A
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Abstract
The invention discloses an upward layered mining method, which takes a layered stope as a unit to carry out centralized operation, firstly, all blast holes are drilled in the layered stope, all the blast holes are drilled to be upward blast holes, and then, blasting ore caving and ore removal are carried out once after all the blast holes filled in the stope are filled with powder. The invention can effectively improve the mining efficiency and the production capacity of the stope, and reduces the output rate of large ore breaking blocks due to the centralized blasting of the upward holes. In addition, as the upward hole is adopted for one-time blasting operation, the flatness of the roof of the stope is improved, the workload of roof management is reduced, and the safety guarantee of operators is improved.
Description
Technical field
Technology that the present invention relates to dig up mine and technology relate in particular to upward cut-and-fill mining method.
Background technology
Upward cut-and-fill mining method be in mining by layering raise mining mineral building, nugget or panel, each layering elder generation extracted ore, method of mining by the way of filling that filling is carried out in the goaf beyond the required working space of a layering after the back production then.The working space of this mining codes is positioned under the ore top board, is applicable to that exploitated ore is firm, country rock moderately stable, high-dipping and all thickness of inclination and the ore body of shape.What upward cut-and-fill mining method adopted at present is the lateral aperture ore falling mode, be that first driling explosion is caunched and formed the rock drilling space, again with horizontal direction Drilling big gun hole, powder charge, explosion, ore removal, and then continue with horizontal direction Drilling big gun hole, powder charge, explosion, ore removal, so circulation, a layering stope need just can be finished through the rock drilling more than ten, powder charge, explosion, ore removal back production circulation.The defective one of this lateral aperture ore falling mode is that the explosion drilling depth is little each time, explosion ore deposit amount is few, and cause digging up mine production efficiency and production capacity are low; The 2nd, fall that the ore deposit boulder yield is higher, lumpiness is inhomogeneous, it is big that stope top board irregularity after the back production explosion, sled hair protect the top workload; The 3rd, in the layering stope, want gradation to organize work cycle, organism of production and the complex management of rock drilling, powder charge, explosion, each operation of ore removal.Cutting method commonly used both at home and abroad is prismatic slotting, vertical box cut or cone cut, and the blow-up rate in big gun hole is low, has only 75～85%.
Summary of the invention
The object of the present invention is to provide a kind of blow-up rate height, mining efficiency height, production capacity of mining field are big, the bulk output capacity the is low concentrated mining technology and the upward cut-and-fill mining method of technology.
Upward cut-and-fill mining method of the present invention is that operation is concentrated in the unit with the layering stope, at first whole blasthole drilling cutters are finished at the layering stope, and all whole Drillings in big gun hole are up-hole, then to once carrying out explosion ore caving, ore removal after all loaded hole powder charges of stope.
The present invention adopts as can be seen from technical scheme of the present invention is the reinforcement back production of concentrating rock drilling, concentrated charge, concentrating explosion and concentrated ore removal, finish the stoping operation of whole layering stope unit with primary drilling, powder charge, explosion, ore removal work cycle, mining efficiency and production capacity of mining field have been improved, and, reduced the output capacity of the ore deposit bulk that falls owing to be that upward hole is concentrated explosion.Owing to adopt upward hole onepull operation, improve stope top board planeness in addition, reduced the workload of roof control (the sled hair protects the top), improved operating personnel's safety guarantee.
Description of drawings
Fig. 1 is the structural representation of layering stope of the present invention.
Fig. 2 is the sectional view of Fig. 1 along the A-A line.
Fig. 3 is that schematic diagram is arranged in big gun hole, A of the present invention district.
The specific embodiment
From Fig. 1, Fig. 2 is to be that the unit carries out the big gun pore size distribution with whole layering stope as can be seen during the invention process, and wherein Fig. 2 has shown stope big gun of the present invention hole arrangement.As can be seen from Figure 2, the cloth porose area of layering stope is divided into A, B, three districts of C successively by the mediad periphery, and the density in cloth hole is reduced successively by the mediad periphery.As shown in Figure 3, wherein the A0 in A district is a centre bore, and the aperture is φ 60～φ 100mm (aperture, A0 hole that present embodiment adopts is Φ 80mm), and the aperture of other big gun hole (removing the A0 hole) is φ 40～φ 50mm, hole depth 3～5m (aperture that present embodiment adopts is φ 50mm, blast hole depth 4m).The A1 in A district, the little burden 300mm of A2 Kongzui, the little burden 500mm of A3 Kongzui; The little burden 800mm of B district big gun Kongzui, distance between borehole 1200mm; The C district little burden of big gun Kongzui is 1200mm, distance between borehole 1400mm; Stope is lateral opening apart from stope border 450mm.
These big gun holes of parallel Drilling (present embodiment adopts the automatic extension bar upward drilling of HS105X hydraulic pressure chassis to concentrate on the Drilling to parallel hole) that begin to make progress after big gun hole cloth is good, the rock drilling time is 6 work teams, rock penetration performance 117m/ machine-team.
After blasthole drilling has been cut a hole, blasting charge, A0 hole blasting charge not wherein, the A1 hole is 1/2nd sections powder charges at the bottom of the hole only, and being detonated in the A1 hole, blast area that the back forms is the cucurbit shape, and other big gun hole all requires to install explosive routinely.The explosive that present embodiment adopts is an emulsion, NT30/NBB150 down-hole truck charging, the powder charge time 4 classes, loading rate 1368kg/ machine-team.Detonating fuse will be overlapped after explosive installs, notice that the detonating fuse in the same section big gun hole of detonating overlaps mutually, lap length is not less than 150mm.
Adopt non-electric ms detonator+detonating fuse hole base initiation mode, detonate, concentrate explosion by the order in A district, B district, C district, shot hole blasting rate 95%, maximum size is greater than the bulk output capacity 1.29% (seeing Table 1) of 500mm.At first detonate by the big gun hole of Pear-Shaped cutting method design, form the Pear-Shaped blast area; Detonate in proper order by A2, A3, B1, B2, B3, B4 hole around the Pear-Shaped blast area then; After drawing back along the full section of stope width, press C1, C2 ... detonating as the section of a detonating order in per two artillery salvo holes of Cn, all detonates up to the big gun hole of whole stope, finishes whole stope bursting work.Help to be subjected to the destruction of detonation stresses ripple in order to reduce stope two, lateral opening and artillery salvo hole, the back section explosion together of stope.
Ore removal is concentrated in the intact back of explosion: adopt ST-31/2 type 3m
3Scraper is concentrated ore removal, the ore removal time nine classes, ore removal efficient 98.4t/h (seeing Table 1).
Table 1
Claims (6)
1, a kind of upward cut-and-fill mining method, it is characterized in that with the layering stope being that operation is concentrated in the unit, at first whole blasthole drillings cutter is finished, and all whole Drillings in big gun hole are up-hole, then to once carrying out explosion ore caving, ore removal after all loaded hole powder charges of stope at the layering stope.
2,, it is characterized in that the density in cloth hole is reduced successively by the mediad periphery when layering stope cloth big gun hole according to the described upward cut-and-fill mining method of claim 1.
3, according to claim 1 or 2 described upward cut-and-fill mining methods, the center that it is characterized in that layering stope cloth porose area is that an aperture is the hole of not powder charge of φ 60～φ 100mm, and other aperture, big gun hole is φ 40～φ 50mm, hole depth 3～5m.
4, according to claim 1 or 2 described upward cut-and-fill mining methods, it is characterized in that when layering stope cloth big gun hole, the cloth porose area of layering stope is divided into A, B, three districts of C, the wherein little burden 200～600mm of A district big gun Kongzui successively by the mediad periphery; The little burden 600～900mm of B district big gun Kongzui, distance between borehole 800～1300mm; The C district little burden of big gun Kongzui is 900～1300mm, distance between borehole 1000～1500mm; Stope is lateral opening apart from stope border 400～500mm.
5, according to the described upward cut-and-fill mining method of claim 4, it is characterized in that in the big gun hole in A district decentre big gun Kongzui near and be distributed in only 1/2nd sections powder charges at the bottom of the hole of four big gun holes on two vertical center lines of big gun hole, center, making the blast area is the cucurbit shape.
6, according to the described upward cut-and-fill mining method of claim 4, the firing order that it is characterized in that respectively distinguishing the big gun hole is C district, B district, A district.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910043192A CN101539020A (en) | 2009-04-23 | 2009-04-23 | Upward layered mining method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910043192A CN101539020A (en) | 2009-04-23 | 2009-04-23 | Upward layered mining method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858217A (en) * | 2010-05-18 | 2010-10-13 | 中南大学 | House pillar changeable panel upward demix filling mining method |
| CN102278114A (en) * | 2011-09-01 | 2011-12-14 | 长沙矿山研究院 | Stereo partition mass ore caving mining method |
| CN102359377A (en) * | 2011-09-01 | 2012-02-22 | 长沙矿山研究院 | Three-dimensional partition collaborative caving mining method for ore pillar group |
| CN102392641A (en) * | 2011-08-02 | 2012-03-28 | 中钢矿业开发有限公司 | Point pillar type full-ore-deposit middle-section-free upward high-layering continuous propelling fill mining method |
| CN104060991A (en) * | 2014-06-26 | 2014-09-24 | 中南大学 | Upward cut-and-fill mining method for in-vein slope ramp of gentle dip thin vein |
| CN108005653A (en) * | 2017-10-24 | 2018-05-08 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | A kind of high stratification mechanization raise mining method |
| CN108708721A (en) * | 2018-04-04 | 2018-10-26 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | To substoping method in a kind of mechanization |
| CN112112650A (en) * | 2020-11-16 | 2020-12-22 | 中国铝业股份有限公司 | Open-stope mining method suitable for slowly-inclined thin ore body to medium-thickness ore body |
-
2009
- 2009-04-23 CN CN200910043192A patent/CN101539020A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858217A (en) * | 2010-05-18 | 2010-10-13 | 中南大学 | House pillar changeable panel upward demix filling mining method |
| CN101858217B (en) * | 2010-05-18 | 2012-03-21 | 中南大学 | House pillar changeable panel upward demix filling mining method |
| CN102392641A (en) * | 2011-08-02 | 2012-03-28 | 中钢矿业开发有限公司 | Point pillar type full-ore-deposit middle-section-free upward high-layering continuous propelling fill mining method |
| CN102392641B (en) * | 2011-08-02 | 2013-09-11 | 中钢矿业开发有限公司 | Point pillar type full-ore-deposit middle-section-free upward high-layering continuous propelling fill mining method |
| CN102278114A (en) * | 2011-09-01 | 2011-12-14 | 长沙矿山研究院 | Stereo partition mass ore caving mining method |
| CN102359377A (en) * | 2011-09-01 | 2012-02-22 | 长沙矿山研究院 | Three-dimensional partition collaborative caving mining method for ore pillar group |
| CN104060991A (en) * | 2014-06-26 | 2014-09-24 | 中南大学 | Upward cut-and-fill mining method for in-vein slope ramp of gentle dip thin vein |
| CN104060991B (en) * | 2014-06-26 | 2016-01-20 | 中南大学 | A kind of for ramp upward ut and fill stoping in the arteries and veins of Gently inclined thin vein |
| CN108005653A (en) * | 2017-10-24 | 2018-05-08 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | A kind of high stratification mechanization raise mining method |
| CN108708721A (en) * | 2018-04-04 | 2018-10-26 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | To substoping method in a kind of mechanization |
| CN108708721B (en) * | 2018-04-04 | 2020-07-24 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | Mechanized upward segmented stoping method |
| CN112112650A (en) * | 2020-11-16 | 2020-12-22 | 中国铝业股份有限公司 | Open-stope mining method suitable for slowly-inclined thin ore body to medium-thickness ore body |
| CN112112650B (en) * | 2020-11-16 | 2022-09-23 | 中国铝业股份有限公司 | Open-stope mining method suitable for slowly-inclined thin ore body to medium-thickness ore body |
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Open date: 20090923 |