CN108150173A - A kind of high-dipping medium-thickness broken orebody single route induction caving mining codes - Google Patents
A kind of high-dipping medium-thickness broken orebody single route induction caving mining codes Download PDFInfo
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- CN108150173A CN108150173A CN201810022702.8A CN201810022702A CN108150173A CN 108150173 A CN108150173 A CN 108150173A CN 201810022702 A CN201810022702 A CN 201810022702A CN 108150173 A CN108150173 A CN 108150173A
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- 238000005065 mining Methods 0.000 title claims abstract description 25
- 230000006698 induction Effects 0.000 title claims abstract description 23
- 238000007598 dipping method Methods 0.000 title claims abstract description 14
- 238000005520 cutting process Methods 0.000 claims abstract description 48
- 239000011435 rock Substances 0.000 claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 238000004064 recycling Methods 0.000 claims abstract 3
- 238000005553 drilling Methods 0.000 claims description 14
- 238000004880 explosion Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 description 7
- 210000001367 artery Anatomy 0.000 description 5
- 210000003462 vein Anatomy 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000005422 blasting Methods 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/22—Methods of underground mining; Layouts therefor for ores, e.g. mining placers
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
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- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
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Abstract
The present invention relates to a kind of high-dipping medium-thickness broken orebody single route induction caving mining codes, including being the stage by ore body division, level interval H0, level haulageway outside ore body is set, is exploited from the top down by the stage, it is characterised in that：It is bottom caved area and top induction caving area by the ore body division in level interval, with the spatiall induction top ore body natural caving of single route bottom avalanche, the ore of single route recycling avalanche and inbreak.It is an advantage of the invention that：Make to adopt quasi- engineering and the cutting damage degree of ore body and surrounding rock is minimized, avoid the overlaying influence of mining pressure, be conducive to the stability that mutatis mutandis engineering is adopted in protection, reduce and fall ore deposit and ore removal quantities, be conducive to improve production efficiency of digging up mine.
Description
Technical field
The invention belongs to a kind of mining technique field, more particularly to a kind of high-dipping medium-thickness broken orebody single route induction emits
Fall mining codes.
Background technology
In metalliferous deposit underground mining, with adopting deep increase and complicated difficult is adopted the gradually input of iron ore-deposit and exploited,
The ratio of (inclination angle is more than 55 °, thickness 4m~15m) breaking ore body thick in high-dipping constantly increases.It finds under study for action, such ore deposit
The coverage of body mining pressure is generally more than 30m so that and it is conventional to there is floor pillar caving method or sublevel caving method to be difficult in adapt to, mainly
It is coverage of the spacing much smaller than mining pressure for adopting quasi- engineering, so as to easily by ground pressure breaking, part ore be made to adopt not
Out or scrap entire stope.
The prior art：High-dipping medium-thickness broken orebody becomes current typical uneasily mining orebody, and many mines, which still use, to be had
Foundation or sublevel caving method without sill pillar exploitation, due to can't resolve ground pressure breaking and safety problem, thus open such ore body
It adopts and often loses more than half, what some mines were abandoned does not adopt.
Therefore, develop it is a kind of adopt the quasi- engineering mining methods low with quasi- coefficient is adopted small to stope ore-rock cutting damage, keep away
Exempt from the excessive overlaying influence of mining pressure, reduce the difficulty adopted quasi- engineering support and safeguarded, prevent ground pressure breaking, make such broken
Uneasily mining orebody obtains safe working, this is significant for improving metallic mineral resources utilization rate.
Invention content
The object of the present invention is to provide a kind of high-dipping medium-thickness broken orebody single route induction caving mining codes, standard is adopted in reduction
Engineering avoids the transition overlaying influence of mining pressure, and special using the easy inbreak of ore to the cutting damage degree of breaking ore body
Property reduce explosion energy consumption, thick broken uneasily mining orebody is made in high-dipping to obtain safety and high efficiency.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of high-dipping medium-thickness broken orebody single route induction caving mining codes of the present invention, including being rank by ore body division
Section, level interval H0, level haulageway outside ore body is set, is exploited from the top down by the stage, it is characterised in that：By rank
Ore body division in Duan Gaodu is bottom caved area and top induction caving area, with the spatiall induction top ore body of bottom avalanche from
Right inbreak, bottom after extracting drift medium-length hole blasting, the ore of avalanche and inbreak are released from end mouthful, specific steps are such as along the pulse
Under：
1) the head stopes in each stage tunnel three Chuan Mai tunnels from level haulageway, and intermediate one has been used for
Into cutting engineering, tunneled always to disk boundary on ore body, one section in ore body is cutting lane, in the ore body in cutting heading portion
By ore caving height, disk digging cuts well along ore body, and to cut well as the scope of freedom, cutting groove, upper and lower rank are pulled open from cutting lane explosion
The position in section cutting lane is staggeredly arranged；Positioned at the tunnel at both ends as ore removal connection roadway, driving is to ore body lower wall with returning along the pulse
Adopt route perforation.
2) since second stope, two Chuan Mai tunnels are tunneled, one, for completing cutting engineering, is dug always to ore body
Upper disk boundary；Another is used as ore removal connection roadway, digs to ore body lower wall；
In the end of ore removal connection roadway, extracting drift along the pulse is tunneled along ore body lower wall, driving arrives and cut lane phase always
It is logical, in extracting drift along the pulse, by ore caving height Drilling fan shaped medium length hole；
Blast hole projectile filling, explosion are carried out by stoping space, using explosion spatiall induction top ore body natural caving, avalanche is with emitting
The ore fallen is released from extracting drift end along the pulse mouthful, in back production, according to the effective fragmentation height of lower wall avalanche rock blasthole
H1And collapse the lateral opening angle θ of rock, avalanche part lower wall barren rock；
Level interval H0With lower wall avalanche rock height H1The two is calculated by following formula determine respectively：
H1=L sin θs+h
In formula：H0Level interval, m；H1Broken ore height, m；H- route height, m；α-the slanting angle of ore body, °；θ-fall ore deposit
The lateral opening angle of blasthole, °, k- designs permissible value for ore loss ratio, and general k value is not more than 5%；L- rock drilling and charge device it is effective
Rock drilling and shot depth, m.
The ore deposit blasthole lateral opening angle θ of the present invention that falls is 60 °~70 °.
The lateral opening angle θ of the ore caving is 65 °~75 °.
Advantages of the present invention：
Compared with prior art, route induction caving mining codes of the invention, will adopt quasi- engineering to ore body and surrounding rock
Cutting damage degree minimize, avoid the overlaying influence of mining pressure, be conducive to protection and adopt the stability of mutatis mutandis engineering, together
When, this method takes full advantage of the characteristic of the easy inbreak of breaking ores and Side ore drawing amount is convenient for the characteristic flexibly controlled, each
Stage or high sublevel arrange a Strike drift production ore, reduce and fall ore deposit and ore removal quantities, are conducive to improve mining
Production efficiency.The present invention is used to exploit high-dipping medium-thickness broken orebody, safe and efficient exploitation effect easy to implement.
The present invention is especially suitable for the medium-thickness broken orebodies that inclination angle is more than 75 °.
Description of the drawings
Fig. 1 is bottom Collapsed zone mining engineering floor plan.
Fig. 2 is non-ore removal position III-III drawings in side sectional elevation in Fig. 1.
Fig. 3 is the I-I profilographs of Fig. 2.
Fig. 4 is the ore removal position IV-IV drawings in side sectional elevation of induction caving in Fig. 1.
In figure：Stope headed by A, B are the second stope, and 1 is rock, and 2 ore for avalanche and inbreak, 3 induce for top
Collapsed zone, 4 be extracting drift along the pulse, and 5 be fan shaped medium length hole, and 6 be cutting connection roadway, and 7 be level haulageway, and 8 be lower wall
Barren rock, 9 be loss ore, and 10 be cutting well, and 11 be cutting lane, and 12 be ore removal connection roadway.
Specific embodiment
As Figure 1-Figure 4, a kind of high-dipping medium-thickness broken orebody route induction caving mining codes of the invention, including inciting somebody to action
Ore body division is the stage, level interval H0, exploited from the top down by the stage, it is characterised in that：The setup phase outside ore body
Ore body division in level interval is bottom caved area and top induction caving area 3, with the sky of bottom avalanche by haulage drift 7
Between induce top ore body natural caving, after medium-length hole blasting, release the ore 2 of avalanche and inbreak, be as follows：
1) the head stope A in each stage tunnel three tunnels from level haulageway 7, wherein positioned at intermediate one
For completing the cutting connection roadway 6 of cutting engineering, tunneled always to disk boundary on ore body, cutting connection roadway 6 is in ore body
One section as cutting lane 11, cutting 11 end of lane ore body in by ore caving height along ore body disk digging cutting well 10, with
Cutting well 10 is the scope of freedom, pulls open cutting groove from cutting 11 explosion of lane, the position in upper next stage cutting lane 11 is staggeredly arranged；Both ends
Tunnel as ore removal connection roadway 12, driving to ore body lower wall is penetrated through with extracting drift 4 along the pulse.
2) since second stope B, two tunnels are tunneled, one, for completing cutting engineering, is dug to ore body always
Disk boundary；Another is used as ore removal connection roadway, digs to ore body lower wall；
3) in the end of ore removal connection roadway 12, along ore body lower wall driving extracting drift 4 along the pulse, driving arrives and cutting always
Lane 11 communicates, and ore caving height Drilling fan shaped medium length hole 5 is pressed in extracting drift 4 along the pulse；
4) blast hole projectile filling and explosion are carried out by stoping space, utilizes explosion spatiall induction top ore body natural caving, avalanche
With the ore 2 of inbreak, released from 4 end of extracting drift along the pulse mouthful, in back production, according to the effective quick-fried of lower wall avalanche rock blasthole
Broken height H1And collapse the lateral opening angle θ of rock, avalanche part lower wall barren rock 8.
Its level interval H0With lower wall avalanche rock height H1The two is calculated by following formula determine respectively
H1=L sin θs+h
In formula：H0Level interval, m；H1Broken ore height, m；H- route height, m；α-the slanting angle of ore body, °；θ-fall ore deposit
The lateral opening angle of blasthole, °, k- designs permissible value for ore loss ratio, and general k value is not more than 5%；L- rock drilling and charge device it is effective
Rock drilling and shot depth, m.
The ore deposit blasthole lateral opening angle θ of the present invention that falls is 60 °~70 °.
Embodiment：
1) Mine-rock in Caving Method height H1 and level interval H0It determines.
Certain iron ore mine high-dipping medium-thickness broken orebody is exploited using single route induction caving mining codes, is calculated as follows and collapses
Fall ore height H1 and level interval H0：
H1=L sin θs+h
In formula：H0Level interval, m；H1Broken ore height, m；H- route height, m；α-the slanting angle of ore body, °；θ-fall ore deposit
The lateral opening angle of blasthole, °, k- designs permissible value for ore loss ratio, and general k value is not more than 5%；L- rock drilling and charge device it is effective
Rock drilling and shot depth, m.
The ore deposit blasthole lateral opening angle θ of the present invention that falls is 60 °~70 °.
80 ° of the mean obliquity of the ore deposit ore body, average level thickness 15m；Using YGZ-90 type long and medium hole drilling machine rock drilling, wind
Dynamic explosive loader powder charge, the effective rock drilling of blasthole are 21m with shot depth；Take extracting drift section：Width × height=3.0m × 3.0m；For
The rate of dilution is controlled, the lateral opening angle of blasthole takes 65 °；Design ore loss ratio 5%.Enable L=20m, h=3.0m, α=80 °, θ=65 °, k
=0.05, B=i5m substitute into above formula and calculate, obtain：
H1=L sin θs+h=21 × sin65 ° of+3.0=22m,
Take H0For 60m.
2) the head stope A in stage dig three perpendicular to ore body by level haulageway 7 and wear arteries and veins connection roadway,
In be located at both ends wear arteries and veins connection roadway as ore removal connection roadway 12, sensible ore body is penetrated through with extracting drift 4 along the pulse；It is intermediate
Wear arteries and veins connection roadway across mineral ore, armor rock is tunneled always, to cut connection roadway 6.Cut connection roadway 6 and ore removal
The spacing of connection roadway 12 is the half of length of stope, usually takes 30m-40m.
3) in the end of cutting connection roadway 6, the position of disk, the ore caving height determined as stated above on close ore body
H1, digging cutting well 10, it is determined that and the height of cutting well 10 pulls open cutting groove for 22m, then to cut well as scope of freedom explosion,
Cutting engineering is completed by cutting connection roadway 6.
4) in the end of ore removal connection roadway 12, stope drift active workings 4 along the pulse is tunneled along ore body lower wall in ore body, are tunneled always
It is communicated to cutting lane 11.Along the pulse extracting drift 4 uses Bolt/shotcreting/steel mesh combined support, and carries out supporting immediately following working face, it is ensured that edge
The stability of arteries and veins extracting drift 4.
5) along the pulse extracting drift 4 dig into it is rear, by determining H1The height of=22m digs fan shaped medium length hole, blasthole array pitch
2.0m per one row (stoping space 2.0m) of separate explosion during back production, induces top ore body inbreak, the height of inbreak is H0-H1=60-
After medium-length hole blasting, the ore of avalanche and induction caving is released from route end mouthful by 22=38m.
6) position of cutting of upper next stage connection roadway 6 is staggeredly arranged, while wearing using this stage cutting 11 position of lane
Arteries and veins tunnel carries out ore removal, and the inbreak ore at 11 position of cutting lane is made fully to be recycled.
Claims (2)
1. a kind of high-dipping medium-thickness broken orebody single route induction caving mining codes, including being the stage by ore body division, the stage
Highly it is H0, level haulageway outside ore body is set, is exploited from the top down by the stage, it is characterised in that：It will be in level interval
Ore body division be bottom caved area and top induction caving area, with the spatiall induction top ore body natural caving of bottom avalanche,
The ore of inbreak is as follows in this step pitch or in next step away from recycling：
1) the head stopes in each stage tunnel three tunnels from level haulageway, and intermediate one as cutting connection roadway
Road is tunneled always to disk boundary on ore body, one section conduct cutting lane of the cutting connection roadway in ore body, in cutting heading portion
By ore caving height, disk digging cuts well along ore body in ore body, and to cut well as the scope of freedom, cutting groove is pulled open from cutting lane explosion,
The position in upper next stage cutting lane is staggeredly arranged；It is ore removal connection roadway wherein positioned at the tunnel at both ends, driving arrives ore body lower wall,
It is penetrated through with extracting drift along the pulse；
2) since second stope, two tunnels are tunneled, one, for completing cutting engineering, is dug always to disk side on ore body
Boundary；Another is used as ore removal connection roadway, digs to ore body lower wall；
3) in the end of ore removal connection roadway, extracting drift along the pulse is tunneled along ore body lower wall, driving is communicated to cutting lane always,
In extracting drift along the pulse, by ore caving height Drilling fan shaped medium length hole；
4) blast hole projectile filling, explosion, using explosion spatiall induction top ore body natural caving, avalanche and inbreak are carried out by stoping space
Ore, this step pitch or in next step away from recycling, in back production, according to ore caving height H1And the lateral opening angle θ of ore deposit blasthole is fallen, it collapses
Fall part lower wall barren rock；
5) position of the cutting connection roadway of upper next stage is staggeredly arranged, while utilizes the Chuan Mai tunnels at this stage cutting lane position
Ore removal is carried out, the inbreak ore at cutting lane position is made fully to be recycled；
Its level interval H0With ore caving height H1The two is calculated by following formula determine respectively：
H1=L sin θs+h
In formula：H0Level interval, m；H1Broken ore height, m；H- route height, m；α-the slanting angle of ore body, °；θ-fall ore deposit blasthole
Lateral opening angle, °, k- designs permissible value for ore loss ratio, and general k value is not more than 5%；L- rock drilling and effective rock drilling of charge device
With shot depth, m.
The ore deposit blasthole lateral opening angle θ of the present invention that falls is 60 °~70 °.
2. high-dipping medium-thickness broken orebody route induction caving mining codes according to claim 1, it is characterised in that：It is described
The lateral opening angle θ of ore caving be 60 °~70 °.
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| CN201810022702.8A CN108150173A (en) | 2018-01-10 | 2018-01-10 | A kind of high-dipping medium-thickness broken orebody single route induction caving mining codes |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676037A (en) * | 2017-10-25 | 2018-02-09 | 中国石油天然气股份有限公司 | Horizontal well track rate of over-all angle change control method and device |
| CN110359912A (en) * | 2019-07-23 | 2019-10-22 | 长沙矿山研究院有限责任公司 | A kind of slicing and filling mining methods of the unsteady peak abutment of exploitated ore country rock |
| CN111927460A (en) * | 2020-08-17 | 2020-11-13 | 抚顺罕王傲牛矿业股份有限公司 | Thick ore body mining method |
| CN112377191A (en) * | 2020-11-10 | 2021-02-19 | 东北大学 | Inclined sectioning and subsection caving method, stope structure and application |
| RU2782651C1 (en) * | 2022-06-27 | 2022-10-31 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский технологический университет "МИСиС" | Method for mining ore bodies |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676037A (en) * | 2017-10-25 | 2018-02-09 | 中国石油天然气股份有限公司 | Horizontal well track rate of over-all angle change control method and device |
| CN107676037B (en) * | 2017-10-25 | 2019-06-11 | 中国石油天然气股份有限公司 | Horizontal well track rate of over-all angle change control method and device |
| CN110359912A (en) * | 2019-07-23 | 2019-10-22 | 长沙矿山研究院有限责任公司 | A kind of slicing and filling mining methods of the unsteady peak abutment of exploitated ore country rock |
| CN110359912B (en) * | 2019-07-23 | 2021-10-15 | 长沙矿山研究院有限责任公司 | Layered filling mining method for mining triangular ore with unstable ore surrounding rocks |
| CN111927460A (en) * | 2020-08-17 | 2020-11-13 | 抚顺罕王傲牛矿业股份有限公司 | Thick ore body mining method |
| CN112377191A (en) * | 2020-11-10 | 2021-02-19 | 东北大学 | Inclined sectioning and subsection caving method, stope structure and application |
| CN112377191B (en) * | 2020-11-10 | 2022-07-08 | 东北大学 | Inclined sectioning and subsection caving method, stope structure and application |
| RU2782651C1 (en) * | 2022-06-27 | 2022-10-31 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский технологический университет "МИСиС" | Method for mining ore bodies |
| RU2806386C1 (en) * | 2023-05-25 | 2023-10-31 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский технологический университет "МИСиС" | Method of mining ore bodies |
| RU2809852C1 (en) * | 2023-07-11 | 2023-12-19 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский технологический университет "МИСиС" | Method for exploration and development of deposits with nested mineralization |
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Application publication date: 20180612 |