CN103362510A - Sublevel-drilling bench-combination ore-removal sublevel-room mining method - Google Patents
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Abstract
The invention discloses a sublevel-drilling bench-combination ore-removal sublevel-room mining method. The sublevel-drilling bench-combination ore-removal sublevel-room mining method comprises the following steps of dividing inclined steeply-dipping medium-thickness ore which has ore stability or produces frequent inclination variation or produces dislocation because of fault into sections, arranging ore-removal levels at the bottoms of the sections, driving each one of the sections into ore zones along an ore formation direction, dividing each one of the ore zones into multiple segments, merging a part of the segments according to the ore conditions, arranging respectively ore removal structures at the bottoms of the merged segment and the independent segments, carrying out vertical middle-deep hole ore breaking in the segments, feeding the broken ore to the ore-removal levels by the ore removal structures, and after room mining, treating a gob by pillaring. The method provided by the invention fully utilizes advantages of a sublevel-room mining method and a vertical middle-deep hole Sublevel-drilling sublevel-room mining method and enlarges a sublevel-room mining method application range.
Description
Technical field
The present invention relates to a kind of mining methods of metalliferous deposit underground mining, specifically a kind of sublevel drilling and section ore removal Sublevel room mining.Be applicable to that the ore deposit rock is firm, change of pitch angle is frequent or because of the inclination high-dipping middle thickness orebody of fault movement.
Background technology
The metalliferous deposit mining methods have three major types: openstope method, caved stopes and the method for mining by the way of filling.According to domestic and international mining practices, widely used mining methods mainly contain in the openstope method: breast stoping, room and pillar stoping, shrinkage stoping, sublevel mining room method and block chambering method.Block chambering method can be divided into again horizontal deep hole block chambering method, vertical long hole sublevel drilling block chambering method and the vertical long hole spheric cartridge ore deposit block chambering method that falls.
The inclination high-dipping middle thickness orebody that the quarry rock is firm, what often adopt is sublevel mining room method and vertical long hole sublevel drilling block chambering method.
The sublevel mining room method is divided some segmentations by the nugget vertical direction; Arrange mineral building and ore pillar in each segment level, the ore under each segmentation is adopted transports from the discharging tunnel of each segmentation respectively, and after the sublevel mining room back production finished, the ore pillar of immediately this segmentation of back production was also processed the goaf simultaneously.The method flexibility is large, and production capacity is strong, and operation is concentrated, but it is large to adopt accurate engineering quantity, and the tunnel complicated layout is applicable in the firm inclination of quarry rock and the high-dipping thick in thick ore body.
Vertical long hole sublevel drilling block chambering method tunnels the segmentation tunnel mineral building is divided into segmentation in mineral building, with the vertical centering control deep hole ore deposit that falls.Before the back production, except mineral building bottom undercuts, wards off leakage, form the perpendicular cuts groove in mineral building central authorities or side, and as the scope of freedom, the vertical fragmentation ore deposit that falls; After back production finishes, stooping pillaring and processing dead zone.The advantages such as the method has that stoping strength is large, high productivity, mining cost are low, job safety, but require ore body and country rock contact surface regular, ore body is without stratification, and the joint or the interspersed zone of fracture that do not have and intermesh are applicable to exploit big thick ore body or the middle thickness orebody of high-dipping.
, change of pitch angle firm at the quarry rock is frequent or during because of the inclination high-dipping middle thickness orebody of fault movement, adopts separately above-mentioned two kinds of methods all can run into some technical problems.Adopt the sublevel mining room method, flexibility is larger, can be according to the variation reasonable Arrangement segmentation of the slanting angle of ore body or changing of the relative positions position, and ore losses and the rate of dilution are lower, but require each segmentation that the segmentation haulage drift is arranged, and adopt accurate engineering quantity large, the tunnel complicated layout; Adopt vertical long hole sublevel drilling block chambering method, although it is less to adopt accurate engineering quantity, very flexible, be difficult to adapt to the variation of the slanting angle of ore body or changing of the relative positions position, particularly slow down when the slanting angle of ore body, when ore body and country rock contact surface irregularity, the loss of ore and the rate of dilution can increase greatly.
The advantages and disadvantages that two kinds of methods of analysis-by-synthesis are firm at exploitation quarry rock, change of pitch angle frequent or show during because of the inclination high-dipping middle thickness orebody of fault movement, the two has strong complementarity, and this invention for the combined mining method provides technology space.
Summary of the invention
Technical problem to be solved by this invention is: overcome conventional vertical long hole sublevel drilling block chambering method at exploitation country rock firm change of pitch angle frequent or very flexible during because of the inclination high-dipping middle thickness orebody of fault movement, the shortcomings such as the loss of ore and the rate of dilution are large, improving the sublevel mining room method, to adopt accurate engineering quantity large, the deficiency of tunnel complicated layout etc., in the pluses and minuses that exploitation exists during this complicated ore body, a kind of separately advantage of sublevel mining room method and vertical long hole sublevel drilling block chambering method that takes full advantage of is proposed by two kinds of methods of analysis-by-synthesis, be applicable to the firm change of pitch angle of ore deposit rock frequent or because of sublevel drilling and the section ore removal Sublevel room mining of the inclination high-dipping middle thickness orebody of fault movement.
The present invention solves the problems of the technologies described above by the following technical programs: a kind of sublevel drilling and section ore removal Sublevel room mining comprise the steps:
(1), changes or changing of the relative positions situation factor according to prospecting for mineral deposits degree, the firm situation of country rock, the slanting angle of ore body, country rock is firm, change of pitch angle is frequent or divide the stage because of the inclination high-dipping middle thickness orebody of fault movement, across pitch is divided nugget in stage, take nugget as basic back production unit
(2), from level haulageway in studding upwards tunneling ventilation People's Bank of China go up a hill, be communicated with the level haulageway in upper stage; The direction which a grave faces mineral building driving sublevel drilling tunnel from the ventilation People's Bank of China, nugget is divided into segmentation, and look ore body natural endowment situation with part segmentation merging, and the sublevel drilling tunnel that merges segmentation and independent segmented bottom is doubled as the tunnel that undercuts, drive up slot raise in the middle of the tunnel that certainly undercuts; The direction which a grave faces foundation driving scraper tunnel from the ventilation People's Bank of China; Dig dress ore deposit gallery from level haulageway to the drop shaft direction, self-chambering ore deposit gallery drives up drop shaft, is communicated with the scraper tunnel; The driving bucket is worn from the scraper tunnel to both sides, and bucket is worn and driven up filler neck certainly,
(3), Drilling is tilted to upper big gun hole the top neck that struggles against is expanded as funnel from filler neck; Expand side as the scope of freedom take the tunnel that undercuts and form pulling end space; The flat medium-length hole of fetching water in slot raise forms cutting groove after the layering explosion,
(4), during back production, each segmentation is take cutting groove as the scope of freedom, adopts the vertical centering control deep hole ore deposit that falls, with elementary errors or second-delay blasting cap or detonator segment blast, every separate explosion 3～5 rows, segmentation keeps vertical operation face or upper segmentation leading explosive broken up and down,
(5), the back production broken ore falls in the funnel by gravity, slip through the scraper tunnel to stage ore removal level, in level haulageway and the gallery entrucking transportation of dress ore deposit;
(6), after the mineral building back production finishes, process the goaf according to the timely stooping pillaring of mine production planning.
Outstanding technical characterstic of the present invention is:
1, takes full advantage of separately advantage of sublevel mining room method and vertical long hole sublevel drilling block chambering method, formed a kind of sublevel drilling and section ore removal Sublevel room mining.
2, be applicable to that the firm occurrence of quarry rock changes greatly or because of the inclination high-dipping middle thickness orebody of fault movement, by each back production segmentation of flexible arrangement and bottom ore removal structure, enlarged the sublevel mining room method scope of application.
3, merge segmentation and the independent segmented independently bottom ore removal structure that all is furnished with, simultaneously back production, ore removal has simultaneously shortened back production time of nugget, has improved stoping strength and the labor productivity of nugget.
4, because the open-assembly time of country rock is short, can suitably reduce the requirement to the country rock steadiness.
Description of drawings
Fig. 1 is the structural representation of sublevel drilling of the present invention and section ore removal Sublevel room mining.
Sublevel drilling and section ore removal Sublevel room mining schematic diagram when Fig. 2 is the inclination high-dipping middle thickness orebody of sublevel drilling of the present invention and section ore removal Sublevel room mining.
Be labeled as among the figure:
1-ore body, 2-level haulageway, 3-dress ore deposit gallery, 4-drop shaft, 5-scraper tunnel, 6-big gun hole, 7-sublevel drilling tunnel, 8-undercut tunnel, 9-broken ore, 10-funnel.
The specific embodiment:
As depicted in figs. 1 and 2, sublevel drilling of the present invention and section ore removal Sublevel room mining: comprise the steps: ore body 1 is divided into the stage, across pitch is divided nugget, and take nugget as basic back production unit, upwards tunneling specification from level haulageway 2 in studding is 2.0 * 2.0m
2Ventilation People's Bank of China go up a hill, be communicated with the level haulageway in upper stage; To tunnel some specifications be 2.6 * 2.6m to the direction which a grave faces mineral building from the ventilation People's Bank of China
2Sublevel drilling tunnel 7, nugget is divided into segmentation, and the determining section segmentation merges, as the tunnel 8 that undercuts, it is 2.0 * 2.0m that certainly undercut 8 centres, tunnel or side drive up specification with the sublevel drilling tunnel 7 that merges segmentation and independent segmented bottom
2Slot raise; The direction which a grave faces foundation driving specification is 2.0 * 2.0m from the ventilation People's Bank of China
2Scraper tunnel 5; Digging specification from level haulageway 2 to drop shaft 4 directions is 2.0 * 2.0m
2Dress ore deposit gallery 3, it is 2.0 * 2.0m that self-chambering ore deposit gallery 3 drives up specification
2Drop shaft 4, be communicated with scraper tunnel 5; Driving specification 1.8 * 1.8m from scraper tunnel 5 to both sides
2Bucket wear, bucket wears that to drive up specification be 2.0 * 2.0m certainly
2Filler neck; Drilling is tilted to upper big gun hole the top neck that struggles against is expanded as funnel 10 from filler neck; Expand the pulling end space of side height of formation as 2.6m, width as orebody thickness as the scope of freedom take the tunnel 8 that undercuts; The flat medium-length hole of in slot raise, fetching water, forming width after the layering explosion is that 5～8m, length are the cutting groove of orebody thickness; During back production, each segmentation is take cutting groove as the scope of freedom, from adopting the vertical centering control deep hole ore deposit that falls, broken ore 9 is fallen in the funnel 10 by gravity, slip to stage ore removal level through scraper tunnel 5, entrucking transportation in level haulageway 2 and dress ore deposit gallery 3, stooping pillaring was processed the goaf after the mineral building back production finished.
Claims (1)
1. a sublevel drilling and section ore removal Sublevel room mining is characterized in that, comprise the steps:
(1), changes or changing of the relative positions situation factor according to prospecting for mineral deposits degree, the firm situation of country rock, the slanting angle of ore body, country rock is firm, change of pitch angle is frequent or divide the stage because of the inclination high-dipping middle thickness orebody of fault movement, across pitch is divided nugget in stage, take nugget as basic back production unit
(2), from level haulageway in studding upwards tunneling ventilation People's Bank of China go up a hill, be communicated with the level haulageway in upper stage; The direction which a grave faces mineral building driving sublevel drilling tunnel from the ventilation People's Bank of China, nugget is divided into segmentation, and look ore body natural endowment situation with part segmentation merging, and the sublevel drilling tunnel that merges segmentation and independent segmented bottom is doubled as the tunnel that undercuts, drive up slot raise in the middle of the tunnel that certainly undercuts; The direction which a grave faces foundation driving scraper tunnel from the ventilation People's Bank of China; Dig dress ore deposit gallery from level haulageway to the drop shaft direction, self-chambering ore deposit gallery drives up drop shaft, is communicated with the scraper tunnel; The driving bucket is worn from the scraper tunnel to both sides, and bucket is worn and driven up filler neck certainly,
(3), Drilling is tilted to upper big gun hole the top neck that struggles against is expanded as funnel from filler neck; Expand side as the scope of freedom take the tunnel that undercuts and form pulling end space; The flat medium-length hole of fetching water in slot raise forms cutting groove after the layering explosion,
(4), during back production, each segmentation is take cutting groove as the scope of freedom, adopts the vertical centering control deep hole ore deposit that falls, with elementary errors or second-delay blasting cap or detonator segment blast, every separate explosion 3～5 rows, segmentation keeps vertical operation face or upper segmentation leading explosive broken up and down,
(5), the back production broken ore falls in the funnel by gravity, slip through the scraper tunnel to stage ore removal level, in level haulageway and the gallery entrucking transportation of dress ore deposit;
(6), after the mineral building back production finishes, process the goaf according to the timely stooping pillaring of mine production planning.
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Cited By (13)
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| CN103670417A (en) * | 2013-12-26 | 2014-03-26 | 鞍钢集团矿业公司 | Non-pillar sublevel caving mining method for discharging ores from side part of electric rake roadway |
| CN105201511A (en) * | 2015-10-16 | 2015-12-30 | 广西大学 | Collaborative mining method for common ore storage section with multi-branch draw shafts in stopes arranged in stepped manner |
| CN106285682A (en) * | 2016-08-18 | 2017-01-04 | 宜宾天原集团股份有限公司 | Room and pillar stoping |
| CN106499395A (en) * | 2016-12-05 | 2017-03-15 | 广西大学 | The quick-fried power scraper of shallow bore hole rock drilling cooperates with haulage Sublevel room mining |
| CN106837335A (en) * | 2017-03-15 | 2017-06-13 | 广西大学 | Truck cooperates with ore removal sill pillars sublevel caving method |
| CN107725054A (en) * | 2017-08-18 | 2018-02-23 | 西北矿冶研究院 | Mining method of thin vein with changeable inclination angle |
| CN108343438A (en) * | 2018-01-18 | 2018-07-31 | 武汉理工大学 | A kind of inclined orebody varied angle Trench ore-drawing mining methods |
| CN109667584A (en) * | 2018-12-26 | 2019-04-23 | 远安县燎原矿业有限责任公司 | A kind of phosphorus ore abundant little faults location recovery method |
| CN110700833A (en) * | 2019-10-31 | 2020-01-17 | 广西大学 | Medium-length hole multi-stope and subsection common drop shaft mining method for hanging wall ore body mining |
| CN110905515A (en) * | 2019-11-25 | 2020-03-24 | 南华大学 | Combined filling mining method for complex ore body |
| CN111963175A (en) * | 2020-07-28 | 2020-11-20 | 广西大学 | Thick ore body mining method |
| CN113216958A (en) * | 2021-05-25 | 2021-08-06 | 紫金矿业集团股份有限公司 | Inverted frustum-shaped ore gathering natural caving mining method |
| CN114109387A (en) * | 2021-11-30 | 2022-03-01 | 湖南柿竹园有色金属有限责任公司 | Efficient mining process suitable for operating characteristics of intelligent equipment |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103670417A (en) * | 2013-12-26 | 2014-03-26 | 鞍钢集团矿业公司 | Non-pillar sublevel caving mining method for discharging ores from side part of electric rake roadway |
| CN103670417B (en) * | 2013-12-26 | 2016-02-03 | 鞍钢集团矿业公司 | Utilize the bottom-column-free sectional caving stoping method of scraper tunnel sidepiece ore removal |
| CN105201511A (en) * | 2015-10-16 | 2015-12-30 | 广西大学 | Collaborative mining method for common ore storage section with multi-branch draw shafts in stopes arranged in stepped manner |
| CN106285682A (en) * | 2016-08-18 | 2017-01-04 | 宜宾天原集团股份有限公司 | Room and pillar stoping |
| CN106499395A (en) * | 2016-12-05 | 2017-03-15 | 广西大学 | The quick-fried power scraper of shallow bore hole rock drilling cooperates with haulage Sublevel room mining |
| CN106837335B (en) * | 2017-03-15 | 2019-01-04 | 广西大学 | Truck cooperates with ore removal sill pillars sublevel caving method |
| CN106837335A (en) * | 2017-03-15 | 2017-06-13 | 广西大学 | Truck cooperates with ore removal sill pillars sublevel caving method |
| CN107725054A (en) * | 2017-08-18 | 2018-02-23 | 西北矿冶研究院 | Mining method of thin vein with changeable inclination angle |
| CN108343438A (en) * | 2018-01-18 | 2018-07-31 | 武汉理工大学 | A kind of inclined orebody varied angle Trench ore-drawing mining methods |
| CN108343438B (en) * | 2018-01-18 | 2019-10-25 | 武汉理工大学 | A kind of inclined orebody varied angle Trench ore-drawing mining methods |
| CN109667584A (en) * | 2018-12-26 | 2019-04-23 | 远安县燎原矿业有限责任公司 | A kind of phosphorus ore abundant little faults location recovery method |
| CN110700833A (en) * | 2019-10-31 | 2020-01-17 | 广西大学 | Medium-length hole multi-stope and subsection common drop shaft mining method for hanging wall ore body mining |
| CN110905515A (en) * | 2019-11-25 | 2020-03-24 | 南华大学 | Combined filling mining method for complex ore body |
| CN111963175A (en) * | 2020-07-28 | 2020-11-20 | 广西大学 | Thick ore body mining method |
| CN113216958A (en) * | 2021-05-25 | 2021-08-06 | 紫金矿业集团股份有限公司 | Inverted frustum-shaped ore gathering natural caving mining method |
| CN114109387A (en) * | 2021-11-30 | 2022-03-01 | 湖南柿竹园有色金属有限责任公司 | Efficient mining process suitable for operating characteristics of intelligent equipment |
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