CN103982185B - Upright opening and lateral aperture work in coordination with the mechanization sublevel cut and fill method of back production - Google Patents
Upright opening and lateral aperture work in coordination with the mechanization sublevel cut and fill method of back production Download PDFInfo
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- CN103982185B CN103982185B CN201410257493.7A CN201410257493A CN103982185B CN 103982185 B CN103982185 B CN 103982185B CN 201410257493 A CN201410257493 A CN 201410257493A CN 103982185 B CN103982185 B CN 103982185B
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Abstract
The invention discloses the mechanization sublevel cut and fill method that a kind of upright opening and lateral aperture work in coordination with back production, ore body segmentation is exploited, and collaboratively in substoping unit carries out upright opening back production and lateral aperture pressure is adopted; Upright opening is divided into pre-ceasma and Luo Kuang hole, most of ore body in vertical Luo Kuang hole back production unit, unit top board is adopted by lateral aperture pressure and is formed, unit two helps profile to be controlled by vertical pre-ceasma, after pressure is adopted and is protected top, Common LHD and remote-controlled scraper work in coordination with ore removal, unit goaf primary filling, and on adopt next segmentation and leave rock drilling space.Circulation like this, until a whole step stope mining is complete.The present invention had both played the feature of the high strength of point section mining, high efficiency, low cost, and the profile utilizing again presplit blasting to control substoping unit two to help, adopts the profile controlling back production unit top board simultaneously by lateral aperture pressure.It is simple that the present invention has safe and efficient, technique, the advantage that loss and dilution is little and mechanization degree is high.
Description
Technical field
The present invention relates to a kind of mining codes, particularly relate to the mechanization sublevel cut and fill method that a kind of upright opening and lateral aperture work in coordination with back production, be applicable to more than ore deposit rock moderately stable, tilt or Slowly inclined large and thick ore body, the safety of high-dipping middle thickness orebody, high-efficiency mining.
Background technology
Along with updating and development of mining technique and plant equipment, the shortcomings such as production efficiency is low when exploiting big thick ore body, cost of winning is high for stratified filling method, two rate indexs are high expose gradually, filling method develops out sublevel fill stoping method and Mass filling method day by day, and Mass filling method is comparatively strict to the requirement of orebody occurrence, then sublevel fill stoping method more adopt by mine.
Sublevel fill stoping method is existed in exploitation process to the problem of roof safety, traditional sublevel fill stoping method adopts the mode of Pre-control roof usually, and the method complex process, cost is higher, and concussion of blasting easily damages supporting.
Summary of the invention
Under technical problem to be solved by this invention is to provide a kind of prerequisite ensureing job safety, the upright opening that the safe and efficient low cost realizing big thick ore body is exploited and lateral aperture work in coordination with the mechanization sublevel cut and fill method of back production.
In order to solve the problems of the technologies described above, upright opening provided by the invention and lateral aperture work in coordination with the mechanization sublevel cut and fill method of back production, ore body is divided into stage casing in short transverse, segmentation is further subdivided in stage casing, rational mineral building length and width is determined, in this, as a back production unit according to ore-rock stability; The outer trackless of arteries and veins is adopted to adopt standard, by stope connection roadway, slice drift, segmentation connection lane by ore body and stage haulage way or ramp UNICOM; Bottom the first segmentation, form pulling end space and construct artificial false bottom, for this segmentation exploitation provides the rock drilling space of upright opening; Be upright opening and lateral aperture two back production regions by back production dividing elements, the most of ore body in upright opening back production unit, unit top board is adopted by lateral aperture pressure and is formed, and unit two helps profile to be controlled by vertical pre-ceasma; Carry out protecting top operation after pressure adopts end, adopt Common LHD and remote-controlled scraper to work in coordination with ore removal, unit goaf primary filling subsequently, and adopt next segmentation on being and leave rock drilling space, so circulate, until a whole step stope mining is complete.
Further, two of upright opening and lateral aperture two back production regions help profile to be controlled by vertical pre-ceasma onepull, and upright opening, pre-ceasma and upright opening homogeneous detonate simultaneously.
The upright opening of technique scheme and lateral aperture is adopted to work in coordination with the mechanization sublevel cut and fill method of back production, for the problems referred to above that sublevel fill stoping method exists in recovery process, creatively proposition upright opening and lateral aperture work in coordination with the mechanization sublevel cut and fill method of back production, under the prerequisite ensureing job safety, realize the safe and efficient low cost exploitation of big thick ore body.
Adopt the present invention, beneficial effect is:
1. stoping safety is high
Be upright opening and lateral aperture two back production regions by back production dividing elements, the miner that falls does the major part that upright opening region completes this segmentation, and help profile by presplit blasting control back production unit two, lateral aperture back production region is carried out pressure and is adopted operation on upright opening shrink heap, and by controlled blasting controlroof profile.
2. back production efficiency is high, production capacity is large
Segmentation is exploited, and drastically increases back production efficiency and the production capacity of stope,
3. mechanization degree is high, labour intensity is low
Trackless adopts standard, and the use of the advanced random copolyether such as jumbo, remote-controlled scraper, electric truck, rock bolting jumbo, whitewashing chassis, drastically increases the mechanization degree of production, significantly reduce the labour intensity of workman.
4. adopt cost low, resources loss is few
Accurate cutting is adopted in segmentation, substoping, sublevel fill stoping, and technique is simple, and cost is low; Can serialization exploit, resources loss is few.
The present invention had both played the feature of the high strength of point section mining, high efficiency, low cost, and the profile utilizing again presplit blasting to control substoping unit two to help, adopts the profile controlling back production unit top board simultaneously by lateral aperture pressure.It is simple that the present invention has safe and efficient, technique, the advantage that loss and dilution is little and mechanization degree is high.
In sum, the present invention is under a kind of prerequisite ensureing job safety, and the upright opening that the safe and efficient low cost realizing big thick ore body is exploited and lateral aperture work in coordination with the mechanization sublevel cut and fill method of back production.
Accompanying drawing explanation
Fig. 1 is mining methods structure perspective view of the present invention.
Fig. 2 is II of accompanying drawing 1--II section.
Fig. 3 is III of accompanying drawing 1--III section.
Fig. 4 is IV of accompanying drawing 1--IV section.
In figure: 1-stage haulage way; 2-drop shaft; 3-drop shaft connecting taxiway; 4-slice drift; 5-cemented fill; 6-artificial false bottom; 7-fore-set; 8-pulling end space; 9-upright opening; 10-vertical pre-ceasma; 11-broken ore; 12-upright opening back production region; 13-lateral aperture back production region.
Detailed description of the invention
Upright opening provided by the invention and lateral aperture work in coordination with the mechanization sublevel cut and fill method of back production, and technical scheme is as follows:
(1), by ore body be divided into stage casing along short transverse, in stage casing, be further subdivided into segmentation, ore body across pitch or capwise are arranged mineral building, determines rational mineral building length and width according to ore-rock stability, in this, as a back production unit;
(2), segmentation tunnel is arranged on parallel ore bodies border, each segmentation tunnel respectively by segmentation connecting taxiway and ramp through, stope is communicated with segmentation tunnel by stope connection roadway, and stage haulage way is by drop shaft and slice drift UNICOM, thus outside forming arteries and veins, trackless adopts Barebone;
(3), bottom the first segmentation tunnel the tunnel that undercuts, then expand side formation pulling end space, and construct artificial false bottom, pulling end space is then for this substoping provides rock drilling space and compensation space;
(4), by back production dividing elements be upright opening and lateral aperture two back production regions, after adopting accurate cutting, upwards Drilling upright opening, upright opening completes the ore deposit operation that falls in this region, and vertical pre-ceasma controls two of back production unit and helps profile; The back production in lateral aperture back production region, enters stope from the stope connection roadway of upper segmentation and adopts horizontal shallow hole pressure to adopt, by controlled blasting controlroof profile in ore deposit heap;
(5), after explosion ventilates, carry out protecting top operation, adopt Common LHD and remote-controlled scraper to work in coordination with a large amount of ore removal subsequently;
(6), carry out primary filling immediately after this segmentation ore removal, and reserve the rock drilling space of certain altitude for upper sectional vertical hole back production, so circulation is until a whole step stope mining is complete and carry out Tight filling.
Below with reference to figure and instantiation, the present invention is described in further detail:
Embodiments of the invention: for certain gold mine-580m ~-620m stage casing.
Concrete implementation step is as follows:
(1), vertical orebody trend divides mineral building ore pillar, and the wide 8m of mineral building, the wide 7m of ore pillar, 8 ~ 10 mineral building ore pillars are as a panel.Back production in two steps in panel, room of first digging up mine, then post of digging up mine, during two step back production, stope two is helped to be cemented fill.Divide stage casing along short transverse, be further subdivided into segmentation in stage casing, miding level height is 50m, and height of lift is 10.5m, back production all from bottom to top in segmentation.
(2), segmentation tunnel is arranged on parallel ore bodies lower wall border, each segmentation tunnel respectively by connecting taxiway and main ramp through, stope is communicated with segmentation tunnel by stope connection roadway, and stage haulage way is by ore pass and slice drift UNICOM, thus outside forming arteries and veins, trackless adopts Barebone; As shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 3 and accompanying drawing 4, in figure: 1-stage haulage way; 2-drop shaft; 3-drop shaft connecting taxiway; 4-slice drift; 5-cemented fill; 6-artificial false bottom; 7-fore-set; 8-pulling end space; 9-upright opening; 10-vertical pre-ceasma; 11-broken ore; 12-upright opening back production region; 13-lateral aperture back production region.
(3), bottom the first segmentation, tunnel 3.5m × 3.5m cutting lane, then lane expansion side will be cut to 8.8m, and the thick ore body of working to the rise 1.5m, make control heights of roofs be 5m.Bottom mineral building, build artificial false bottom, thus form pulling end space, in this, as the rock drilling space in this segmentation upright opening region.
, form pulling end space in stope after, upwards Drilling upright opening, once by the avalanche of 7m height ore, and adopts the mode of presplit blasting to control two of whole back production unit to help profile.Then enter stope from upper segmentation and adopt horizontal shallow hole pressure to adopt 3.5m height ore body in ore deposit heap, controlled blasting makes top board form 1/4 basket handle arch.Wherein, during upright opening explosion, the hole depth in Luo Kuang hole is 7m, and the hole depth of pre-ceasma is 10m, thus realizes upright opening Advance presplitting and adopt two help profile with level of control hole pressure.
, explosion ventilate after, ore deposit heap on adopt anchor pole to carry out protecting top, local Area cracked adopt anchor pole+wire lath+whitewashing combined supporting.
(6), adopt Common LHD and remote-controlled scraper to work in coordination with a large amount of ore removal.
(7), carry out a consolidated fill immediately after segmentation ore removal, and reserve the rock drilling space of certain altitude for upper sectional vertical hole back production, so circulate, until a whole step stope mining is complete.
Claims (2)
1. a upright opening and lateral aperture work in coordination with the mechanization sublevel cut and fill method of back production, it is characterized in that: ore body is divided into stage casing in short transverse, be further subdivided into segmentation in stage casing, determine rational mineral building length and width according to ore-rock stability, in this, as a back production unit; The outer trackless of arteries and veins is adopted to adopt standard, by stope connection roadway, slice drift, segmentation connection lane by ore body and stage haulage way or ramp UNICOM; Bottom the first segmentation, form pulling end space and construct artificial false bottom, for this segmentation exploitation provides the rock drilling space of upright opening; Be upright opening and lateral aperture two back production regions by back production dividing elements, the most of ore body in upright opening back production unit, unit top board is adopted by lateral aperture pressure and is formed, and unit two helps profile to be controlled by vertical pre-ceasma; Carry out protecting top operation after pressure adopts end, adopt Common LHD and remote-controlled scraper to work in coordination with ore removal, unit goaf primary filling subsequently, and adopt next segmentation on being and leave rock drilling space, so circulate, until a whole step stope mining is complete.
2. upright opening according to claim 1 and lateral aperture work in coordination with the mechanization sublevel cut and fill method of back production, it is characterized in that: two of upright opening and lateral aperture two back production regions help profile to be controlled by vertical pre-ceasma onepull, and vertical pre-ceasma detonates with vertical Luo Kuang hole homogeneous simultaneously.
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| CN106869931B (en) * | 2017-02-14 | 2019-09-20 | 广西高峰矿业有限责任公司 | A kind of barren rock and cementing layering wedging mining with stowing technique and its structure |
| CN111550248B (en) * | 2020-05-20 | 2021-06-01 | 长沙矿山研究院有限责任公司 | Pre-roof-protecting sublevel open-stoping subsequent filling mining method |
| CN112012744A (en) * | 2020-09-18 | 2020-12-01 | 陕西华源矿业有限责任公司 | Comprehensive mechanized ore breaking layered filling mining method |
| CN114562268B (en) * | 2022-02-23 | 2023-04-11 | 长沙矿山研究院有限责任公司 | Partitioned unloading and sublevel filling mining method based on rhombic stoping structure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4309059A (en) * | 1978-01-11 | 1982-01-05 | Walsh Myles A | Mining method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| SE412623B (en) * | 1978-08-03 | 1980-03-10 | Graenges Ab | PROCEDURE FOR SELECTIVE UNDERGRADUATION AND STABILIZATION OF BACKGROUND |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4309059A (en) * | 1978-01-11 | 1982-01-05 | Walsh Myles A | Mining method |
Non-Patent Citations (2)
| Title |
|---|
| 新城金矿二步矿房采矿方法优选研究;姚银佩;《矿业研究与开发》;20101031;第30卷(第5期);第6-8页，图1-3 * |
| 机械化盘区上向分层充填采矿法试验研究;赵国彦;《金属矿山》;19990630(第276期);第1-4页，图1 * |
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