CN106640080B - Under a kind of deep high stress environment mining methods are arranged from steady gallery shape stope - Google Patents

Under a kind of deep high stress environment mining methods are arranged from steady gallery shape stope Download PDF

Info

Publication number
CN106640080B
CN106640080B CN201710086913.3A CN201710086913A CN106640080B CN 106640080 B CN106640080 B CN 106640080B CN 201710086913 A CN201710086913 A CN 201710086913A CN 106640080 B CN106640080 B CN 106640080B
Authority
CN
China
Prior art keywords
ore
steady
shape
gallery
stope
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201710086913.3A
Other languages
Chinese (zh)
Other versions
CN106640080A (en
Inventor
史秀志
陈辉
周健
苟永刚
陈新
邱贤阳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Central South University
Original Assignee
Central South University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Central South University filed Critical Central South University
Priority to CN201710086913.3A priority Critical patent/CN106640080B/en
Publication of CN106640080A publication Critical patent/CN106640080A/en
Application granted granted Critical
Publication of CN106640080B publication Critical patent/CN106640080B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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 mining methods are arranged from steady gallery shape stope under a kind of deep high stress environment, comprise the following steps:(1) nugget is arranged;(2) quasi- cutting engineering is adopted;(3) back production;(4) divulge information;(5) ore removal works;(6) filling operation;(7) from the back production of steady gallery shape ore pillar.The present invention be it is a kind of can effectively improve STOPE STABILITY, provided for deep high stress mineral deposit safe working under the deep high stress environment of effective safety guarantee from steady gallery shape stope arrange mining methods.

Description

Under a kind of deep high stress environment mining methods are arranged from steady gallery shape stope
Technical field
The present invention relates to adopted under a kind of mining methods more particularly to a kind of deep high stress environment from steady gallery shape stope arrangement 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 that will be exploited into below underground 1000m.At present, in designing, constructing, 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 problems 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 It asks, 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 problems to be solved by the invention be to provide it is a kind of can effectively improve STOPE STABILITY, be deep high stress Under the deep high stress environment of the effective safety guarantee of mineral deposit safe working offer mining methods are arranged from steady gallery shape stope.
In order to solve the above technical problem, the present invention provides deep high stress environment under from steady gallery shape stope arrange dig up mine Method comprises the following steps:
(1), nugget is arranged:
It is the stage by ore body division, nugget is divided within the stage, then nugget is divided into shape mineral building and ore pillar, perpendicular separation Orebody trend mineral building and ore pillar, mineral building section arrangement shape is top ellipticity, the ellipticity ore deposit that lower part is moat ditch inverted trapezoidal shape Room, ore pillar section arrangement shape is top arch shape, lower part is moat ditch inverted trapezoidal shape from steady gallery shape ore pillar;
(2), quasi- cutting engineering is adopted:
It adopts cutting journey and mainly tunnels the outer haulage drift of arteries and veins, sublevel drilling tunnel, dress ore deposit crosscut, dress ore deposit inclined gallery and trenching tunnel Engineering;From arteries and veins outslope road road driving be arranged in haulage drift outside upper lower burrs arteries and veins, outside arteries and veins transport tunnelling dress ore deposit crosscut and Trenching tunnel digs dress ore deposit inclined gallery with 45° angle every 10~12.5m in dress ore deposit crosscut to ore body;Bottom of Stope ore removal structure is set Moat ditch structure is calculated as, bottom moat is formed in trenching tunnel, sublevel drilling connecting taxiway slot raise, and 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 be set according to stringent blasthole in sublevel drilling tunnel The angle and length of meter are constructed;Emulsion, non-conductivity blasting system detonation are loaded into blasthole;Each quick-fried 2~3 round, More segmentations while ore caving, form stepped working face after explosion, formed along orebody trend direction from steady gallery shape ore pillar side Boundary;
(4) divulge information:
It is fresh distinguished and admirable Bottom of Stope dress ore deposit crosscut and each sublevel drilling tunnel, punching to be entered by haulage drift outside ramp, arteries and veins After washing working face, waste air enters upper stage casing by another wing ramp of stope;
(5) ore removal works:
Through dress ore deposit crosscut, the outer haulage drift of arteries and veins is transported to mine chute and carries out ore removal the quick-fried ore that falls;
(6) filling operation:
After ellipticity mineral building ore whole haulage, 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 after both sides, mineral building has been adopted, paste body filling and after having conserved obturation, from steady gallery shape ore pillar with ellipticity mineral building Identical method back production, pattern is also using scallop hole, filling all-tailing cemented filling.
In above-mentioned steps (1), nugget arrangement:Ellipticity mineral building, it is wide from steady gallery shape ore pillar be adjacent trenching tunnel spacing, it is wide Spend for 20~30m, length is the thickness of ore body, ellipticity mineral building, from steady gallery shape ore pillar height be 40~60m of level interval, it is ellipse Round shape mineral building divides segmentation in height, and general point of 3 segmentations are 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:It is quick-fried to fall ore by diesel LHD in stope bottom structure dress ore deposit inclined gallery Shovel dress ore, through filling ore deposit crosscut, ore is transported to mine chute and carries out ore removal by the outer haulage drift of arteries and veins.
Mining methods are arranged from steady gallery shape stope, be for existing using under the deep high stress environment of above-mentioned technical proposal The deficiency of mining methods, efficiently solve present in deep orebody back production since high stress causes ore pillar unstable, and cause Back production security it is poor the problems such as.At present, designing, in construction, mineral building and pillar shape in mining methods are regular cuboids, And regular shape can cause wedge angle to exist, and cause ore pillar sharp corner stress concentration after back production explosion, Pillar Stability is poor, this hair Bright to change traditional mineral building, ore pillar arrangement shape, this method can effectively improve STOPE STABILITY, be deep high stress mineral deposit 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, is carried out as the scope of freedom to side ore caving, the ore of avalanche borrows dead weight to fall on the releasing of moat ditch; After mineral building back production, mineral building is filled, then stooping pillaring and handles ore pillar dead zone.It is adopted with what traditional rule mineral building, ore pillar were arranged Ore deposit method compares, and the present invention has following advantageous effect:
The present invention is especially suitable for the exploitations of deep high stress big thick ore body.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 arrangement shape is top ellipticity, lower part is moat ditch Inverted trapezoidal shape, ore pillar section arrangement shape is top arch shape, lower part is moat ditch inverted trapezoidal shape, 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 The safety of deep exploitation of mineral resources process provides 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 hair Bright to efficiently solve under the condition of high ground stress of deep, the security risk present in ore body back production has prevented the production of ore pillar unstable phenomenon It is raw, it ensure that the production that mine safety is stablized.
In conclusion the present invention be it is a kind of can effectively improve STOPE STABILITY, be deep high stress mineral deposit safe working It provides and arranges 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 embodiment of the present invention is illustrated below in conjunction with attached drawing, it should be understood that preferred reality described herein It applies example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Referring to Fig. 1, Fig. 2 and Fig. 3, mining side is arranged from steady gallery shape stope under deep high stress environment provided by the invention Method comprises the following steps:
(1) nugget is arranged:
It is the stage by ore body division, nugget is divided within the stage, then nugget is divided into shape mineral building and ore pillar, perpendicular separation Orebody trend mineral building and ore pillar, mineral building section arrangement shape is top ellipticity, the ellipticity ore deposit that lower part is moat ditch inverted trapezoidal shape Room 1, ore pillar section arrangement shape is top arch shape, lower part is moat ditch inverted trapezoidal shape from steady gallery shape ore pillar 2, ellipticity mineral building 1st, wide from steady gallery shape ore pillar 1 is adjacent 3 spacing of trenching tunnel, width 25m, and length is the thickness 40m of ore body, ellipticity mineral building 1st, it is level interval 60m from steady 2 height of gallery shape ore pillar, ellipticity mineral building 1 divides segmentation in height, general point of 3 segmentations, point 13~20m of Duan Gaowei;
(2) quasi- cutting engineering is adopted:
It adopts cutting journey and mainly tunnels 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.Haulage drift 11 outside upper lower burrs arteries and veins is arranged in from the driving of arteries and veins ramp 12, haulage drift 11 is dug outside arteries and veins Into dress ore deposit crosscut 10 and trenching tunnel 3, dress ore deposit inclined gallery 6 are dug to ore body with 45° angle every 10~12.5m in dress ore deposit crosscut.It adopts Field bottom ore structure design is moat ditch structure, in trenching tunnel 3, sublevel drilling connecting taxiway slot raise 13, and to cut day Well forms bottom moat ditch and cutting groove for the scope of freedom.
(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 are dug in sublevel drilling tunnel 6 and trenching tunnel 3 to fanhole(s) 4, array pitch 1.6m, bottom hole pitch are 1.8~2.0m, and rock drilling will be according to stringent blasthole in bore diameter Φ 70mm, wherein sublevel drilling tunnel 6 The angle and length of design are constructed.Emulsion, the non-quick-fried system of conductance are loaded into blasthole using emulsifying explosive loading trolley System detonation.Each quick-fried 2~3 round, more segmentations can ore caving simultaneously, stepped working face is formed after explosion, along orebody trend Direction is formed from steady 2 border of gallery shape ore pillar.
(4) divulge information:
It is fresh distinguished and admirable by the entrance of haulage drift 11 Bottom of Stope dress ore deposit crosscut 10 and each sublevel drilling lane outside ramp 12, arteries and veins Road 6, behind flushing work face, waste air enters upper stage casing by another wing ramp of stope.
(5) ore removal works:
The quick-fried ore that falls is by 4m3Diesel LHD shovel dress ore in stope bottom structure dress ore deposit inclined gallery 9, through filling ore deposit crosscut 10, ore is transported to mine chute into 9 row ore removals by the outer haulage drift 11 of arteries and veins.
(6) filling operation:
After 1 ore whole haulage of ellipticity mineral building, with crude tailings paste filling material consolidated fill whole ellipticity ore deposit 1 dead zone of room forms obturation 5.
(7) from the back production of steady gallery shape ore pillar:
After after both sides, mineral building has been adopted, paste body filling and conserve 28 days obturations after, from steady gallery shape ore pillar 2 with ellipticity ore deposit The identical method back production in room, pattern is also using fan transfer, filling all-tailing cemented filling.

Claims (4)

1. under a kind of deep high stress environment mining methods are arranged from steady gallery shape stope, it is characterized in that:Comprise the following steps:
(1) nugget is arranged:
It is the stage by ore body division, nugget is divided within the stage, then nugget is divided into mineral building and ore pillar, perpendicular separation ore body is walked To mineral building and ore pillar, mineral building section arrangement shape is top ellipticity, the ellipticity mineral building that lower part is moat ditch inverted trapezoidal shape, ore pillar Section arrangement shape is top arch shape, lower part is moat ditch inverted trapezoidal shape from steady gallery shape ore pillar;
(2) quasi- cutting engineering is adopted:
It adopts cutting journey and mainly tunnels 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;From arteries and veins outslope road, driving is arranged in haulage drift outside upper lower burrs arteries and veins, and tunnelling dress ore deposit crosscut and moat ditch are transported outside arteries and veins Dress ore deposit inclined gallery are dug in tunnel with 45° angle every 10~12.5m in dress ore deposit crosscut to ore body;Bottom of Stope ore removal structure design is Moat ditch structure, in trenching tunnel, sublevel drilling connecting taxiway slot raise, and using slot raise as the scope of freedom formed 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, and second step back production is from steady gallery shape ore pillar;It is dug in segmentation To fanhole(s) on chisel in rock gangway road and trenching tunnel, wherein rock drilling will be according to stringent 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, more points Section while ore caving, form stepped working face after explosion, formed along orebody trend direction from steady gallery shape ore pillar border;
(4) divulge information:
It is fresh it is distinguished and admirable Bottom of Stope dress ore deposit crosscut and each sublevel drilling tunnel is entered by haulage drift outside ramp, arteries and veins, rinse work After making face, waste air enters upper stage casing by another wing ramp of stope;
(5) ore removal works:
Through dress ore deposit crosscut, the outer haulage drift of arteries and veins is transported to mine chute and carries out ore removal the quick-fried ore that falls;
(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 Area;
(7) from the back production of steady gallery shape ore pillar:
After after both sides, mineral building has been adopted, paste body filling and after having conserved obturation, from steady gallery shape ore pillar with identical with ellipticity mineral building Method back production, pattern is also using fan transfer, filling all-tailing cemented filling.
2. under deep high stress environment according to claim 1 mining methods are arranged from steady gallery shape stope, it is characterized in that:On It states in step (1), nugget arrangement:Ellipticity mineral building, it is wide from steady gallery shape ore pillar be adjacent trenching tunnel spacing, width for 20~ 30m, length are the thickness of ore body, and ellipticity mineral building is 40~60m of level interval from steady gallery shape ore pillar height, ellipticity mineral building Division segmentation in height, general point of 3 segmentations, is segmented a height of 13~20m.
3. mining methods, feature are arranged from steady gallery shape stope under deep high stress environment according to claim 1 or 2 It is:In above-mentioned steps (3) back production:Emulsion is loaded into blasthole using emulsifying explosive loading trolley, non-conductivity blasting system rises It is quick-fried.
4. mining methods, feature are arranged from steady gallery shape stope under deep high stress environment according to claim 1 or 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, through filling ore deposit crosscut, ore is transported to mine chute and carries out ore removal by the outer haulage drift of arteries and veins.
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)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710086913.3A CN106640080B (en) 2017-02-17 2017-02-17 Under a kind of deep high stress environment mining methods are arranged from steady gallery shape stope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710086913.3A CN106640080B (en) 2017-02-17 2017-02-17 Under a kind of deep high stress environment mining methods are arranged from steady gallery shape stope

Publications (2)

Publication Number Publication Date
CN106640080A CN106640080A (en) 2017-05-10
CN106640080B true CN106640080B (en) 2018-06-01

Family

ID=58845452

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710086913.3A Active CN106640080B (en) 2017-02-17 2017-02-17 Under a kind of deep high stress environment mining methods are arranged from steady gallery shape stope

Country Status (1)

Country Link
CN (1) CN106640080B (en)

Families Citing this family (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

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU690186A1 (en) * 1972-09-25 1979-10-05 Научно-исследовательский институт по проблемам Курской магнитной аномалии им. Л.Д.Шевякова Mineral excavating method
US4017121A (en) * 1974-11-25 1977-04-12 Allied Chemical Corporation Longwall mining of trona with prefracturing to prevent slabbing
CN101105129B (en) * 2007-07-16 2010-05-19 中南大学 Mining environment reconstructed continuous mining afterwards filling mining method
CN102011589B (en) * 2010-10-29 2012-10-10 中钢集团马鞍山矿山研究院有限公司 Stope bottom structure suitable for underground two-step mining and production process thereof
CN102182461A (en) * 2011-04-02 2011-09-14 山东黄金矿业(玲珑)有限公司 Efficient mining method for thick metal ore body in slanting
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
CN105822306B (en) * 2016-03-22 2017-12-29 河北钢铁集团矿业有限公司 Inclined thick gulf is even across the mineral building construction design method of structural system

Also Published As

Publication number Publication date
CN106640080A (en) 2017-05-10

Similar Documents

Publication Publication Date Title
CN101338674B (en) Non-pillar sublevel caving mining method for direct loading for ore
CN108612530A (en) A kind of mining methods of upper disk rock crusher slant middle thick orebody
CN104863592B (en) A kind of big structure sublevel drill and benching ore removal afterwards filling mining method
CN108561135A (en) A kind of mechanization stoping method of the suitable unstable middle thickness orebody of low-angle dip country rock
CN103590831A (en) Novel mining method of gently-inclined thin and medium thickness ore bodies
CN102953732A (en) Room-and-pillar major-diameter longhole inverted-step-like segmented lateral caving subsequent filling mining method
CN106761756B (en) A kind of stope structure for Upward slicing all-tailing cemented filling method
CN106223958A (en) The slant middle thick orebody subregion rock drilling stage ore deposit afterwards filling that falls works in coordination with mining codes
CN104533416A (en) Large-scale mechanized non-sill-pillar sub-level caving mining method for extremely thick ore body
CN102635356A (en) Medium-length hole mining method in multiple blasting free faces of high dipping thin veins
CN106761912B (en) It is a kind of be suitable for unstable formation efficiently on to route slicing and filling mining methods
CN106223956B (en) Medium-length hole courtyard mining afterwards filling method
CN106640080B (en) Under a kind of deep high stress environment mining methods are arranged from steady gallery shape stope
CN106761757A (en) A kind of full stage combination chisel it is quick-fried fall the efficient mining methods of ore deposit
CN107989614B (en) The mining methods of the inclined thick ore body of disk rock crusher in a kind of back production
CN107829739B (en) A kind of recovery method of steep narrow veins
CN108843382A (en) A kind of suitable unstable middle thickness orebody of low-angle dip country rock it is lower to afterwards filling method
CN106194188A (en) The quick-fried power of scraper collaborative carrying puppet tilts room and pillar stoping
CN103437768B (en) Pre-set space filling mining method without top column and bottom column
CN108547618A (en) A kind of two steps mining methods leave the recovery process of studding
CN101725350A (en) Footwall vein rock drilling vein-passing access road ore removal stope caving method
CN104989404A (en) Diagonal ore-break-down medium-length hole mining method for steeply-inclined thin vein ore body
CN110388209A (en) A kind of high-dipping bilayer ore body stage deep hole mining method
CN108798672B (en) A kind of mining methods for the area's ore high-efficiency mining that collapses greatly
CN109869150A (en) A kind of mine resources are segmented the full office of adopting and fill recovery method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant