CN101725350A - Footwall vein rock drilling vein-passing access road ore removal stope caving method - Google Patents

Footwall vein rock drilling vein-passing access road ore removal stope caving method Download PDF

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Publication number
CN101725350A
CN101725350A CN200810157785A CN200810157785A CN101725350A CN 101725350 A CN101725350 A CN 101725350A CN 200810157785 A CN200810157785 A CN 200810157785A CN 200810157785 A CN200810157785 A CN 200810157785A CN 101725350 A CN101725350 A CN 101725350A
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CN
China
Prior art keywords
ore
vein
ore removal
footwall
rock drilling
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.)
Pending
Application number
CN200810157785A
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Chinese (zh)
Inventor
穆太升
徐国良
张桂松
李进鹏
李龙义
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.)
DAYINGEZHUANG GOLD MINE ZHAOJIN MINING INDUSTRY Co Ltd
Original Assignee
DAYINGEZHUANG GOLD MINE ZHAOJIN MINING INDUSTRY Co Ltd
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Filing date
Publication date
Application filed by DAYINGEZHUANG GOLD MINE ZHAOJIN MINING INDUSTRY Co Ltd filed Critical DAYINGEZHUANG GOLD MINE ZHAOJIN MINING INDUSTRY Co Ltd
Priority to CN200810157785A priority Critical patent/CN101725350A/en
Publication of CN101725350A publication Critical patent/CN101725350A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a footwall vein rock drilling vein-passing access road ore removal stope caving method which has the difference that the primary space and ore removal systems are utilized to dispose ore removal access roads constructed to the footwall of the orebody at the tiptop segment of the orebody, and then the ore removal access roads are penetrated each other at the footwall of the orebody to be in the capacity of rock drilling tunnels. The invention is a novel stope caving method which is applied to a mine with high rock mass strength and developed joint fissures, has low loss and depletion, safety, high efficiency, low cost and high practicality, and effectively controls the reclamation of geostatic pedestals.

Description

Footwall vein rock drilling vein-passing access road ore removal stope formula caved stopes
Technical field:
The present invention relates to a kind of avalanche method mining methods, particularly Footwall vein rock drilling vein-passing access road ore removal stope formula caved stopes.
Background technology:
Along with the disappearance of mineral resources and non-renewable, available mineral resources are fewer and feweri, and the difficulty of exploitation is increasing.The road that sustainable development is walked in mining industry at present faces many problems, and the first, mineral resources reserve reserves deficiency; The second, existing mineral resources can not get effective utilization, and waste is serious.According to statistics, the mineral resources utilization rate of China is about 50% only, and the mine that has has only 40%.
Continue under the high condition in the current price of gold, improve production capacity and just can obtain maximum economic benefits, and the tailings slicing and filling mining codes efficient that adopt always in domestic a lot of mine is low, cost height, poor stability.
Summary of the invention:
Purpose of the present invention will provide a kind of exactly and adopt that to cut engineering quantity few, and low frequency decreases, efficient height, the novel mining methods that safety is good, productivity is big, practical.
The object of the present invention is achieved like this:
A kind of Footwall vein rock drilling vein-passing access road ore removal stope formula caved stopes is characterized in that may further comprise the steps:
(1) utilizes that back production is former has living space and the ore removal system, arrange that in the segmentation of going up most of ore body the ore removal route constructs to the ore body lower wall, then each ore removal route is drawn mutually in the position of ore body lower wall, as drilling drift.
(2) in drilling drift, choose a correct position, the construction slot raise, 2.0 * 2.0 meters of specifications, 10~12 meters webs circle to the ore body of height are as the scope of freedom of avalanche.
(3) in drilling drift, creep into capable cloth scallop hole, by the step pitch ore deposit that falls with 90.
(4) behind the employing local fan ventilation, electric LHD enters ore removal.
The present invention compares with the technology of present employing has following characteristics:
1) adopt that to cut engineering quantity few, 2) low frequency decreases 3) the efficient height, 4) safety is good, and 5) practical.
Description of drawings:
Fig. 1 is the vertical perspective view of concrete structure of the present invention.
Fig. 2 is a concrete structure sectional drawing of the present invention.
Fig. 3 is a concrete structure plan view of the present invention.
1, the cutting exploratory raise 2, slot raise 3, wear arteries and veins route 4, rock drilling is subjected to mine mouth
5, segmentation tunnel 6, stope connecting taxiway
The specific embodiment:
1. adopting the cut journey arranges:
Five segmentations: utilize former four to five segmentation service shafts that barren rock is charged into four segmentation stopes, on original connecting taxiway basis, extend to the ore body lower wall, form four routes, from every route respectively on ore body the dish direction driving gradient be 50 ° slot raise, form the initial scope of freedom and ore from slipping the slope;
Auxiliary segmentation: former four segmentation to five heights of lift are 14 meters, and distance was excessive at the bottom of an avalanche meeting caused the hole, easily produced bulk.So from upwards construct 9 ° of the gradients of four segmentations, the ramp that length is 44 meters, the auxiliary segmentation lane of construction is two 7 meters high parts with 14 meters section high scores again, then from auxiliary segmentation lane driving drilling drift, ore removal route and control ore deposit slot raise.
Four segmentations: earlier with four segmentations excavation top tight filling, because four segmentations can't form and slip the slope, ore deposit, coil so route dug to ore body, near the last Pan Chu slot raise of constructing, direction is the ore body lower wall from ore body.
Ore pass: utilize original No. four ore pass ore removals.
Ventilating shaft: connect from four segmentations south construction downcast and five segmentation lanes, wear arteries and veins from the northern construction of five segmentations upcast shaft with-210 stage casings 61 lines and connect.
2. process for stoping:
2.1 rock drilling: adopt medium-length hole to carry out explosion, drilling tool is that the guide tracked Independent Rotary Rock Drill of YGZ-90 type is equipped with TJ25 type disc type drilling cramp, and it is a power with compressed air, be mainly used on the Drilling to fan-shaped or annular in deep blasting hole.
According to existing production technique condition, select parameter as follows: five segmentations are high 12 meters to-210 stage casing stope foundation sections, 7 meters of other heights of lift, 7.5 meters of ore removal drift intervals.The fan-shaped layout of the general employing in big gun hole, the scallop hole degree of depth is generally 8-15 rice.Fan-shaped big gun is arranged along orebody trend, 45 °-50 ° at lateral opening angle, at the bottom of the hole apart from 1.5-2 rice, 1.2 meters of minimum burdens, 9-10 big gun hole of every row, each explosion 1-2 artillery salvo hole.
Charging work adopts artificial pencil powder charge, must control the explosive payload of bore portions well.
2.2 explosion: with the slot raise is the scope of freedom, big gun hole, elder generation explosion slot raise place from forming the cutting room of direction along the pulse near the slot raise, is arranged adjacent big gun hole from last dish to lower wall explosion one to two then successively, the strength of utilizing explosive blasting fully with ore handling to the slope, be beneficial to shovel fortune.According to the slanting angle of ore body and the firm situation of ore, apart from close lower wall place 2 to 6 meters not powder charges in big gun aperture, to protect rock drilling ore removal chamber and to reduce ore dilution.Each route is separately as a back production unit, and the ore in the whole segmentation is disposable quick-fried following.
By selecting rational blasting parameter, to reduce the bulk output capacity, when having bulk to produce, bulk is shoveled to other ore removal route with scraper, carry out second-time breakage with 7655 formula hammer drill.
3. stope ore removal
Adopt the scraper ore removal, ore is slid down along slide inclined-plane, ore deposit, shovel to No. four ore pass from the ore removal route by scraper, to notice during ore removal that full section evenly shovels the dress ore, in time handle various faults and guarantee that ore is mobile unimpeded, with the rate of reducing the loss, the reduction rate of dilution, is transported to 61.5 lines with electric locomotive and concentrates drop shaft by the vibration ore dumping machine ore drawing in-290 stage casings.If any tailings or when going up the armor rock and sneaking into, in time end ore drawing.Ore after fragmentation by skip hoisting to the face of land.
4. ore pillar reclaims
Collapse down together with-210 stage casing foundation in the five segmentations ore deposit that once falls, do not stay top, foundation and some post in the stope, the triangular stump that forms from auxiliary segmentation avalanche five segmentations.Because four segmentations are to transfer the avalanche method to by filling method, can't form slide inclined-plane, ore deposit, wear arteries and veins route rock drilling ore removal so adopt, adopt 7655 formula hammer drill auxiliary rock drillings, the rive both sides of route of retrusive form toroidal, ore between the route is collapsed down, do not stay any ore pillar.

Claims (1)

1. Footwall vein rock drilling vein-passing access road ore removal stope formula caved stopes is characterized in that may further comprise the steps:
1), utilize that back production is former has living space and the ore removal system, arrange that in the segmentation of going up most of ore body the ore removal route constructs to the ore body lower wall, then each ore removal route is drawn mutually in the position of ore body lower wall, as drilling drift.
2), in drilling drift, choose a correct position, the construction slot raise, 2.0 * 2.0 meters of specifications, 10~12 meters of height web circle to the ore body is as the scope of freedom of avalanche.
3), in drilling drift, creep into capable cloth scallop hole, by the step pitch ore deposit that falls with 90.
4), adopt local fan ventilation after, electric LHD enters ore removal.
CN200810157785A 2008-10-21 2008-10-21 Footwall vein rock drilling vein-passing access road ore removal stope caving method Pending CN101725350A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200810157785A CN101725350A (en) 2008-10-21 2008-10-21 Footwall vein rock drilling vein-passing access road ore removal stope caving method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200810157785A CN101725350A (en) 2008-10-21 2008-10-21 Footwall vein rock drilling vein-passing access road ore removal stope caving method

Publications (1)

Publication Number Publication Date
CN101725350A true CN101725350A (en) 2010-06-09

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102261248A (en) * 2011-08-15 2011-11-30 辽宁科技大学 Sill-pillar-free stage caving stopping method based on creasing-type structure
CN102587916A (en) * 2012-02-01 2012-07-18 金建工程设计有限公司 Method for filling and mining after ore caving
CN103104258A (en) * 2013-01-28 2013-05-15 西南科技大学 Method for improving ore recovery rate of gentle dip ore body by non-pillar sublevel caving
CN104074519A (en) * 2014-07-04 2014-10-01 大冶有色金属有限责任公司 Floating hole deep sublevel stoping method
CN104389604A (en) * 2014-09-23 2015-03-04 长沙矿山研究院有限责任公司 Method for forming covering layer by stope caving method
CN104895566A (en) * 2015-06-15 2015-09-09 武汉科技大学 Mining method with residual ore recovery function
CN106321104A (en) * 2016-08-31 2017-01-11 安徽开发矿业有限公司 Loss-free dilution-free cut slot stoping technology
CN107035372A (en) * 2017-06-09 2017-08-11 临沂会宝岭铁矿有限公司 A kind of moat ditch formula polycrystalline substance enters trackside peak abutment post recovery method
CN108252717A (en) * 2018-01-10 2018-07-06 鞍钢集团矿业有限公司 A kind of low poor damage sublevel caving of high-dipping middle thickness orebody
CN108708769A (en) * 2018-05-08 2018-10-26 宝钢集团新疆八钢铁有限公司 A kind of Underground laneway plugging method

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102261248A (en) * 2011-08-15 2011-11-30 辽宁科技大学 Sill-pillar-free stage caving stopping method based on creasing-type structure
CN102261248B (en) * 2011-08-15 2013-04-03 辽宁科技大学 Sill-pillar-free stage caving stopping method based on creasing-type structure
CN102587916A (en) * 2012-02-01 2012-07-18 金建工程设计有限公司 Method for filling and mining after ore caving
CN102587916B (en) * 2012-02-01 2015-11-25 金建工程设计有限公司 A kind of ore caving afterwards filling mining methods
CN103104258B (en) * 2013-01-28 2015-05-20 西南科技大学 Method for improving ore recovery rate of gentle dip ore body by non-pillar sublevel caving
CN103104258A (en) * 2013-01-28 2013-05-15 西南科技大学 Method for improving ore recovery rate of gentle dip ore body by non-pillar sublevel caving
CN104074519A (en) * 2014-07-04 2014-10-01 大冶有色金属有限责任公司 Floating hole deep sublevel stoping method
CN104074519B (en) * 2014-07-04 2016-03-16 大冶有色金属有限责任公司 A kind of hole depth sublevel stoping of floating
CN104389604A (en) * 2014-09-23 2015-03-04 长沙矿山研究院有限责任公司 Method for forming covering layer by stope caving method
CN104895566A (en) * 2015-06-15 2015-09-09 武汉科技大学 Mining method with residual ore recovery function
CN104895566B (en) * 2015-06-15 2017-03-08 武汉科技大学 A kind of remnant reclaiming mining codes
CN106321104A (en) * 2016-08-31 2017-01-11 安徽开发矿业有限公司 Loss-free dilution-free cut slot stoping technology
CN107035372A (en) * 2017-06-09 2017-08-11 临沂会宝岭铁矿有限公司 A kind of moat ditch formula polycrystalline substance enters trackside peak abutment post recovery method
CN108252717A (en) * 2018-01-10 2018-07-06 鞍钢集团矿业有限公司 A kind of low poor damage sublevel caving of high-dipping middle thickness orebody
CN108252717B (en) * 2018-01-10 2019-08-27 鞍钢集团矿业有限公司 A kind of low poor damage sublevel caving of high-dipping middle thickness orebody
CN108708769A (en) * 2018-05-08 2018-10-26 宝钢集团新疆八钢铁有限公司 A kind of Underground laneway plugging method

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