CN106640080A - Deep part high-stress environment self-stabilizing arched stope arrangement mining method - Google Patents

Deep part high-stress environment self-stabilizing arched stope arrangement mining method Download PDF

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Publication number
CN106640080A
CN106640080A CN201710086913.3A CN201710086913A CN106640080A CN 106640080 A CN106640080 A CN 106640080A CN 201710086913 A CN201710086913 A CN 201710086913A CN 106640080 A CN106640080 A CN 106640080A
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ore
steady
gallery
mineral building
shape
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CN201710086913.3A
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CN106640080B (en
Inventor
史秀志
陈辉
周健
苟永刚
陈新
邱贤阳
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Central South University
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Central South University
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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

Abstract

The invention discloses a deep part high-stress environment self-stabilizing arched stope arrangement mining method, which comprises the following steps of (1) ore block arrangement; (2) mining-cutting engineering; (3) stopping; (4) ventilation; (5) ore removal work; (6) filling work; (7) self-stabilizing arched ore pillar stopping. The method provided by the invention belongs to the deep part high-stress environment self-stabilizing arched stope arrangement mining method capable of effectively improving the stope stability and providing the effective safety guarantee for the deep part high-stress ore deposit safe exploitation.

Description

Mining methods are arranged under a kind of deep high stress environment from steady gallery shape stope
Technical field
The present invention relates to adopt from steady gallery shape stope arrangement under a kind of mining methods, more particularly to a kind of deep high stress environment Ore deposit method.
Background technology
With superficial part resource increasingly depleted, deep is gradually moved towards in exploitation of mineral resources.According to statistics with prediction, China's " 13 " phase Between have more than 50 seat metal mines to exploit into below underground 1000m.At present, in design, construction, mineral building in mining methods and Pillar shape is regular cuboid, and regular shape can cause wedge angle to exist, and causes ore pillar sharp corner stress collection after back production explosion In, Pillar Stability is poor.Deep mining faces Gao Jingwen, high-ground stress and high well depth " three high " particular surroundings, brings The difficult problem such as many safety and technology, traditional mining methods have been difficult in adapt to wanting for the safe and efficient low cost exploitation of deep-seated deposit Ask, the mining methods of deep metalliferous deposit need to be innovated, form the mining methods for adapting to deep-seated deposit high stress environment.
The content of the invention
The technical problem to be solved is to provide one kind and can effectively improve STOPE STABILITY, is that deep is heavily stressed Mining methods are arranged under the deep high stress environment of the effective safety guarantee of mineral deposit safe working offer from steady gallery shape stope.
In order to solve above-mentioned technical problem, dig up mine from steady gallery shape stope arrangement under the deep high stress environment that the present invention is provided Method, comprises the following steps:
(1), nugget arrangement:
It is the stage by ore body division, nugget is divided within the stage, then nugget is divided into into shape mineral building and ore pillar, perpendicular separation Orebody trend mineral building and ore pillar, the ellipticity ore deposit that mineral building section arrangement is shaped as top ellipticity, bottom is moat ditch inverted trapezoidal shape Room, it is moat ditch inverted trapezoidal shape from steady gallery shape ore pillar that ore pillar section arrangement is shaped as top arch shape, bottom;
(2) quasi- cutting engineering, is adopted:
Adopt cut journey and mainly tunnel the outer haulage drift of arteries and veins, sublevel drilling tunnel, dress ore deposit crosscut, dress ore deposit inclined gallery and trenching tunnel Engineering;Be arranged in the outer haulage drift of upper lower burrs arteries and veins from arteries and veins outslope road road driving, transport outside arteries and veins tunnelling dress ore deposit crosscut and Trenching tunnel, ore deposit inclined gallery are filled in dress ore deposit crosscut with 45° angle every 10~12.5m to ore body pick;Bottom of Stope ore removal structure sets Moat groove structure is calculated as, in trenching tunnel, sublevel drilling connecting taxiway slot raise, and bottom moat is formed by the scope of freedom of slot raise Ditch and cutting groove;
(3) back production:
The back production of nugget is carried out in two steps, first step back production ellipticity mineral building, and second step back production is from steady gallery shape ore pillar;Dividing To fanhole(s) on chisel in section drilling drift and trenching tunnel, wherein rock drilling will set according to strict blasthole in sublevel drilling tunnel The angle and length of meter is constructed;Emulsion, non-conductivity blasting system detonation are loaded into blasthole;Each quick-fried 2~3 round, It is be segmented ore caving simultaneously more, stepped working face is formed after explosion, formed from steady gallery shape ore pillar side along orebody trend direction Boundary;
(4) divulge information:
It is fresh distinguished and admirable Bottom of Stope is entered by ramp, the outer haulage drift of arteries and veins to fill ore deposit crosscut and each sublevel drilling tunnel, punching After washing working face, dirty wind enters upper stage casing by another wing ramp of stope;
(5) ore removal work:
Quick-fried to fall ore Jing dress ore deposits crosscut, the outer haulage drift of arteries and veins is transported to mine chute carries out ore removal;
(6) filling operation:
After ellipticity mineral building ore whole haulage is finished, with crude tailings paste filling material consolidated fill whole ellipticity mineral building Dead zone;
(7) from the back production of steady gallery shape ore pillar:
After both sides mineral building has been adopted, paste body filling has simultaneously been conserved after obturation, from steady gallery shape ore pillar with ellipticity mineral building Identical method back production, pattern is also adopted by scallop hole, filling all-tailing cemented filling.
In above-mentioned steps (1), nugget arrangement:Ellipticity mineral building, from steady gallery shape ore pillar width be adjacent trenching tunnel spacing, it is wide Spend for 20~30m, length for ore body thickness, ellipticity mineral building, from steady gallery shape ore pillar height be 40~60m of level interval, it is ellipse Round shape mineral building divides in height segmentation, general point of 3 segmentations, is segmented a height of 13~20m.
Above-mentioned steps (3) back production:In:Emulsion is loaded into blasthole using emulsifying explosive loading trolley, non-conductance is quick-fried System is detonated.
In the work of above-mentioned steps (5) ore removal:The quick-fried ore that falls is filled in ore deposit inclined gallery by diesel LHD in stope bottom structure Shovel dress ore, Jing dress ore deposits crosscut, ore is transported to mine chute by the outer haulage drift of arteries and veins carries out ore removal.
Mining methods are arranged from steady gallery shape stope using under the deep high stress environment of above-mentioned technical proposal, is for existing The deficiency of mining methods, efficiently solves and cause ore pillar unstable due to heavily stressed existing for deep orebody back production, and causes Back production security difference the problems such as.At present, in design, construction, the mineral building and pillar shape in mining methods is regular cuboid, And regular shape can cause wedge angle to exist, ore pillar sharp corner stress concentration after back production explosion is caused, Pillar Stability is poor, this Bright to change traditional mineral building, ore pillar arrangement shape, the method can effectively improve STOPE STABILITY, be the heavily stressed mineral deposit in deep Safe working provides effective safety guarantee.
It is characteristic of the invention that:Before ore caving starts, undercut to form moat ditch in nugget bottom, ellipticity mineral building, from steady gallery Shape ore pillar side forms cutting groove, carries out to side ore caving as the scope of freedom, and the ore of avalanche is fallen moat ditch and released by means of deadweight; After mineral building back production terminates, mineral building is filled, then stooping pillaring and process ore pillar dead zone.With adopting that traditional rule mineral building, ore pillar are arranged Ore deposit method compares, and the present invention has following beneficial effect:
The present invention is especially suitable for the exploitation of the heavily stressed big thick ore body in deep.Nugget is divided within the stage, then nugget is drawn It is divided into mineral building and ore pillar, perpendicular separation arrangement mineral building, ore pillar, mineral building section arranges that it is moat ditch to be shaped as top ellipticity, bottom Inverted trapezoidal shape, it is moat ditch inverted trapezoidal shape that ore pillar section arrangement is shaped as top arch shape, bottom, and innovation is devised from steady gallery shape Stope arrangement, improve the stress condition of mineral building, ore pillar, positive Earth pres-sure control greatly improves STOPE STABILITY, right Deep exploitation of mineral resources process has safely provided powerful guarantee.Efficiently mining, mining are realized under the condition of high ground stress of deep Efficiency improves 10%~15%;Single production capacity of mining field >=900t/d.Ore recovery rate >=85%, loss late≤12%.This Bright to efficiently solve under the condition of high ground stress of deep, the potential safety hazard existing for ore body back production has prevented the product of ore pillar unstable phenomenon It is raw, it is ensured that the stable production of mine safety.
In sum, the present invention is that one kind can effectively improve STOPE STABILITY, is the heavily stressed mineral deposit safe working in deep There is provided and arrange mining methods from steady gallery shape stope under the deep high stress environment of effective safety guarantee.
Description of the drawings
The front view of Fig. 1 mining methods of the present invention.
Fig. 2 is I-I direction view of Fig. 1.
Fig. 3 is II-II direction view of Fig. 1.
In figure:1- ellipticity mineral buildings;2- is from steady gallery shape ore pillar;3- trenching tunnels;4- is upper to fanhole(s);5- obturations; 6- sublevel drillings tunnel;7- foundation;8- drop shafts;9- ore removals inclined gallery;10- ore removals crosscut;The outer haulage drift of 11- arteries and veins;12- slopes Road;13- slot raises.
Specific embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that preferred reality described herein Apply example and be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Mining side is arranged under the deep high stress environment provided referring to Fig. 1, Fig. 2 and Fig. 3, the present invention from steady gallery shape stope Method, comprises the following steps:
(1) nugget arrangement:
It is the stage by ore body division, nugget is divided within the stage, then nugget is divided into into shape mineral building and ore pillar, perpendicular separation Orebody trend mineral building and ore pillar, the ellipticity ore deposit that mineral building section arrangement is shaped as top ellipticity, bottom is moat ditch inverted trapezoidal shape Room 1, it is moat ditch inverted trapezoidal shape from steady gallery shape ore pillar 2, ellipticity mineral building that ore pillar section arrangement is shaped as top arch shape, bottom 1st, wide from steady gallery shape ore pillar 1 is the spacing of adjacent trenching tunnel 3, and width is 25m, length for ore body thickness 40m, ellipticity mineral building 1st, it is level interval 60m from the steady height of gallery shape ore pillar 2, ellipticity mineral building 1 divides in height segmentation, general point of 3 segmentations, point 13~20m of Duan Gaowei;
(2) quasi- cutting engineering is adopted:
Adopt cut journey and mainly tunnel trenching tunnel 3, sublevel drilling tunnel 6, dress ore deposit inclined gallery 9, dress ore deposit crosscut 10 and arteries and veins outward transport The engineerings such as defeated tunnel 11.The outer haulage drift 11 of upper lower burrs arteries and veins is arranged in from the driving of arteries and veins ramp 12, is dug in the outer haulage drift 11 of arteries and veins Enter to fill ore deposit crosscut 10 and trenching tunnel 3, ore deposit inclined gallery 6 are filled to ore body pick with 45° angle every 10~12.5m in dress ore deposit crosscut.Adopt Field bottom ore structure design is moat groove structure, in trenching tunnel 3, sublevel drilling connecting taxiway slot raise 13, and to cut day Well is that the scope of freedom forms bottom moat ditch and cutting groove.
(3) back production:
The back production of nugget is carried out in two steps, first step back production ellipticity mineral building 1, and second step back production is from steady gallery shape ore pillar 2.With Sweden's SANDVIK K41 drill jumboes dig in sublevel drilling tunnel 6 and trenching tunnel 3 1.6m, bottom hole pitch is 1.8~2.0m, and rock drilling in bore diameter Φ 70mm, wherein sublevel drilling tunnel 6 will be according to strict blasthole The angle and length of design is constructed.Emulsion is loaded into blasthole using emulsifying explosive loading trolley, the quick-fried system of non-conductance System detonation.Each quick-fried 2~3 round, more segmentation can be while ore caving, form stepped working face, along orebody trend after explosion Direction is formed from the steady border of gallery shape ore pillar 2.
(4) divulge information:
It is fresh distinguished and admirable Bottom of Stope dress ore deposit crosscut 10 and each sublevel drilling lane to be entered by the outer haulage drift 11 of ramp 12, arteries and veins Road 6, behind flushing work face, dirty wind enters upper stage casing by another wing ramp of stope.
(5) ore removal work:
The quick-fried ore that falls is by 4m3Diesel LHD shovel dress ore in stope bottom structure dress ore deposit inclined gallery 9, Jing dress ore deposits crosscut 10, ore is transported to mine chute and enters 9 row ore removals by the outer haulage drift 11 of arteries and veins.
(6) filling operation:
After the ore of ellipticity mineral building 1 whole haulage is finished, with crude tailings paste filling material consolidated fill whole ellipticity ore deposit The dead zone of room 1, forms obturation 5.
(7) from the back production of steady gallery shape ore pillar:
After both sides mineral building has been adopted, paste body filling is simultaneously conserved after 28 days obturations, from steady gallery shape ore pillar 2 with ellipticity ore deposit Room identical method back production, pattern is also adopted by fan transfer, filling all-tailing cemented filling.

Claims (4)

1. mining methods are arranged from steady gallery shape stope under a kind of deep high stress environment, be it is characterized in that:Comprise the following steps:
(1) nugget arrangement:
It is the stage by ore body division, nugget is divided within the stage, then nugget is divided into into shape mineral building and ore pillar, perpendicular separation ore body Move towards mineral building and ore pillar, the ellipticity mineral building that mineral building section arrangement is shaped as top ellipticity, bottom is moat ditch inverted trapezoidal shape, ore deposit It is moat ditch inverted trapezoidal shape from steady gallery shape ore pillar that post section arrangement is shaped as top arch shape, bottom;
(2) quasi- cutting engineering is adopted:
Adopt cut journey and mainly tunnel the outer haulage drift of arteries and veins, sublevel drilling tunnel, dress ore deposit crosscut, dress ore deposit inclined gallery and trenching tunnel work Journey;The outer haulage drift of upper lower burrs arteries and veins is arranged in from arteries and veins outslope road road driving, tunnelling dress ore deposit crosscut and moat are transported outside arteries and veins Ditch tunnel, ore deposit inclined gallery are filled in dress ore deposit crosscut with 45° angle every 10~12.5m to ore body pick;Bottom of Stope ore removal structure design For moat groove structure, in trenching tunnel, sublevel drilling connecting taxiway slot raise, and bottom moat ditch is formed by the scope of freedom of slot raise And cutting groove;
(3) back production:
The back production of nugget is carried out in two steps, first step back production ellipticity mineral building, and second step back production is from steady gallery shape ore pillar;In segmentation chisel To fanhole(s) on chisel in rock gangway road and trenching tunnel, wherein rock drilling will be according to strict blast-hole design in sublevel drilling tunnel Angle and length are constructed;Emulsion, non-conductivity blasting system detonation are loaded into blasthole;Each quick-fried 2~3 round, many points Section simultaneously ore caving, forms stepped working face after explosion, formed from steady gallery shape ore pillar border along orebody trend direction;
(4) divulge information:
It is fresh it is distinguished and admirable Bottom of Stope entered by ramp, the outer haulage drift of arteries and veins fill ore deposit crosscut and each sublevel drilling tunnel, rinse work After making face, dirty wind enters upper stage casing by another wing ramp of stope;
(5) ore removal work:
Quick-fried to fall ore Jing dress ore deposits crosscut, the outer haulage drift of arteries and veins is transported to mine chute carries out ore removal;
(6) filling operation:
It is empty with crude tailings paste filling material consolidated fill whole ellipticity mineral building after ellipticity mineral building ore whole haulage is finished Area;
(7) from the back production of steady gallery shape ore pillar:
After both sides mineral building has been adopted, paste body filling has simultaneously been conserved after obturation, from steady gallery shape ore pillar with identical with ellipticity mineral building Method back production, pattern is also adopted by fan transfer, filling all-tailing cemented filling.
2. mining methods are arranged from steady gallery shape stope under deep high stress environment according to claim 1, be it is characterized in that:On In stating step (1), nugget arrangement:Ellipticity mineral building, it is adjacent trenching tunnel spacing from steady gallery shape ore pillar width, width is 20~ 30m, length for ore body thickness, ellipticity mineral building, be 40~60m of level interval from steady gallery shape ore pillar height, ellipticity mineral building Segmentation is divided in height, and general point of 3 segmentations are segmented a height of 13~20m.
3. mining methods, its feature are arranged from steady gallery shape stope under deep high stress environment according to claim 1 and 2 It is:Above-mentioned steps (3) back production:In:Emulsion is loaded into blasthole using emulsifying explosive loading trolley, non-conductivity blasting system rises It is quick-fried.
4. mining methods, its feature are arranged from steady gallery shape stope under deep high stress environment according to claim 1 and 2 It is:In the work of above-mentioned steps (5) ore removal:The quick-fried ore that falls shovels dress ore deposit by diesel LHD in stope bottom structure dress ore deposit inclined gallery Stone, Jing dress ore deposits crosscut, ore is transported to mine chute by the outer haulage drift of arteries and veins carries out ore removal.
CN201710086913.3A 2017-02-17 2017-02-17 Under a kind of deep high stress environment mining methods are arranged from steady gallery shape stope Active CN106640080B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110332865A (en) * 2019-07-08 2019-10-15 中南大学 Deep high stress stope upper centripetal deep hole combined blasting method
CN113047835A (en) * 2021-02-24 2021-06-29 中南大学 Deep well thick and large ore body mining method integrating emptying, caving and filling
CN113047838A (en) * 2021-06-02 2021-06-29 北京科技大学 Fine and safe stoping method for mining stagnant and retained gallery ore by subsection or stage open stope method

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CN102953732A (en) * 2011-08-17 2013-03-06 彭康 Room-and-pillar major-diameter longhole inverted-step-like segmented lateral caving subsequent filling mining method
CN105822306A (en) * 2016-03-22 2016-08-03 河北钢铁集团矿业有限公司 Chamber structure design method of steeply inclined large and thick ore body multi-span structural system

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US4017121A (en) * 1974-11-25 1977-04-12 Allied Chemical Corporation Longwall mining of trona with prefracturing to prevent slabbing
CN101105129A (en) * 2007-07-16 2008-01-16 中南大学 Mining environment reconstructed continuous mining afterwards filling mining method
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CN105822306A (en) * 2016-03-22 2016-08-03 河北钢铁集团矿业有限公司 Chamber structure design method of steeply inclined large and thick ore body multi-span structural system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110332865A (en) * 2019-07-08 2019-10-15 中南大学 Deep high stress stope upper centripetal deep hole combined blasting method
CN113047835A (en) * 2021-02-24 2021-06-29 中南大学 Deep well thick and large ore body mining method integrating emptying, caving and filling
CN113047838A (en) * 2021-06-02 2021-06-29 北京科技大学 Fine and safe stoping method for mining stagnant and retained gallery ore by subsection or stage open stope method

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