CN112855158B - Mechanical downward layered filling mining method for mining preparation in broken thin ore body vein - Google Patents
Mechanical downward layered filling mining method for mining preparation in broken thin ore body vein Download PDFInfo
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- CN112855158B CN112855158B CN202110052004.4A CN202110052004A CN112855158B CN 112855158 B CN112855158 B CN 112855158B CN 202110052004 A CN202110052004 A CN 202110052004A CN 112855158 B CN112855158 B CN 112855158B
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- 238000005065 mining Methods 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 24
- 210000003462 vein Anatomy 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 238000010276 construction Methods 0.000 claims abstract description 16
- 238000009423 ventilation Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000005553 drilling Methods 0.000 claims description 4
- 239000011435 rock Substances 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 210000001367 artery Anatomy 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/06—Filling-up mechanically
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- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
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- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention provides a mechanical downward stratified filling mining method for mining in a broken thin ore body vein, which comprises the following steps: layering, vein-penetrating mining, roadway mining, well mining, mining construction, slope construction, roadway dredging and circular construction. The invention has the beneficial effects that: the method for mining the thin and broken ore body in the vein through mechanized downward stratified filling reduces mining preparation engineering, reduces cost, facilitates mechanized operation, solves the problems of low mechanized mining degree and large mining preparation engineering quantity of inclined and broken thin ore body, and provides a new technical approach for other similar mines.
Description
Technical Field
The invention relates to the technical field of mining, in particular to a mechanical downward layered filling mining method for mining preparation in a broken thin ore body vein.
Background
At present, a shallow hole shrinkage method is generally adopted for domestic mines with the thickness of an ore body of about 5m, when the traditional shallow hole shrinkage method is adopted, serious crossing and falling occur when a part of stopes are about 15-20 m in stoping, and stoping can not be carried out any more, so that permanent loss of ores is caused, and meanwhile, great potential safety hazards are brought to personnel operating in the stopes; the crushing of thin inclined ore bodies is a difficult point in mining, and how to improve the mechanization degree and the production capacity and carry out safe and efficient stoping is achieved;
therefore, the invention provides a mechanized downward layered filling mining method for mining in a broken thin ore body vein.
Disclosure of Invention
The invention aims to provide a mechanical downward layered filling mining method for mining in a broken thin ore body vein, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a mechanical downward cut-and-fill mining method for mining in a broken thin ore body vein comprises the following steps:
the method comprises the following steps: layering, wherein the height of the middle section is 40m, the layering height is 2.5-3.0m, and the length is 50-100m;
step two: the method comprises the following steps of (1) transfixion exploitation, namely exploiting a middle-section transfixion according to an actual standard, and exploiting an upper-section transfixion and a lower-middle-section transfixion;
step three: mining a roadway body, namely, mining a middle section vein-following roadway beside a lower middle section vein-passing roadway, and mining an intra-vein roadway in an upper middle section vein-passing roadway;
step four: the method comprises the following steps of well body mining, constructing a pedestrian shaft and a pedestrian ventilation shaft, arranging a draw shaft connecting roadway, mining a first draw shaft and a second draw shaft at the two sides of a lower middle section threading beside a middle section vein gob-side roadway, and communicating the middle section vein-side roadway with the pedestrian shaft and the pedestrian ventilation shaft, thus completing mining-preparation engineering;
step five: mining construction, namely mining from top to bottom after the construction of a mining project is finished;
step six: constructing the slope ramp, namely manufacturing a false bottom for filling, and constructing a layer-turning slope ramp;
step seven: dredging a roadway, constructing a drop shaft connecting roadway to be communicated with a first drop shaft and a second drop shaft, and removing ores and adjusting the direction of a scraper;
step eight: and (5) performing circulating construction, namely performing operation according to the steps and performing downward construction circularly.
Preferably, in the fourth step, rock drilling chambers are arranged in the pedestrian ventilation raise at intervals along the height direction, and horizontal medium-length holes are arranged in the rock drilling chambers.
Compared with the prior art, the invention has the beneficial effects that:
the method for mining the thin and broken ore body in the vein through mechanized downward stratified filling reduces mining preparation engineering, reduces cost, facilitates mechanized operation, solves the problems of low mechanized mining degree and large mining preparation engineering quantity of inclined and broken thin ore body, and provides a new technical approach for other similar mines.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a sectional view of III-III in fig. 1.
In the figure: the device comprises a middle and upper section drift 1, an intra-drift lane 2, a slope 3, a pedestrian raise 4, a first draw shaft 5, a second draw shaft 6, a pedestrian ventilation raise 7, a lower and middle section drift 8, a draw shaft connection lane 9, a middle section gob-side lane 10, a filling body 11 and a raise shaft connection lane 12.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to fig. 2, the present invention provides a technical solution: a mechanical downward cut-and-fill mining method for mining in a broken thin ore body vein comprises the following steps:
the method comprises the following steps: layering, wherein the height of the middle section is 40m, the layering height is 2.5-3.0m, and the length is 50-100m;
step two: the method comprises the following steps of (1) vein-crossing mining, wherein a middle-section vein is mined according to an actual standard, and an upper-section vein 1 and a lower-middle-section vein 8 are mined;
step three: mining a roadway, namely mining a middle section vein-following roadway 10 beside the lower middle section vein-penetrating 8, and mining an intra-vein roadway 2 in the middle and upper section vein-penetrating 1;
step four: the method comprises the following steps of well body mining, constructing a manway shaft 4 and a manway ventilation shaft 7, arranging a draw shaft connecting roadway 9, mining a first draw shaft 5 and a second draw shaft 6 at two sides of a lower middle section through vein 8 beside a middle section vein roadway 10, mining the manway ventilation shaft 7, and communicating the middle section vein-following roadway 10 with the manway shaft 4 and the manway ventilation shaft 7, thus completing mining engineering;
step five: mining construction, namely mining from top to bottom after the construction of a mining project is finished;
step six: constructing the slope ramp, namely manufacturing a false bottom for filling, and constructing a layer-turning slope ramp;
step seven: dredging the gallery, communicating a construction gallery connecting gallery 9 with a first gallery 5 and a second gallery 6, and adjusting the direction of ore removal and a scraper;
step eight: and (5) performing circulating construction, namely performing operation according to the steps and performing downward construction circularly.
The working principle is as follows: mining the middle section artery according to an actual standard, and mining the upper section artery and the lower middle section artery; a middle section vein-following lane is mined beside the middle section vein, and an intra-vein lane is mined in the middle and upper section vein; constructing two pedestrian shafts, mining a first drop shaft and a second drop shaft in the middle section drift, and arranging a drop shaft connecting lane, thus completing the mining engineering; after the construction of the mining preparation project is finished, mining from top to bottom; manufacturing a false bottom for filling, and constructing a layer-changing slope ramp; constructing a continuous tunnel of the ore pass to be communicated with the ore pass, and adjusting the direction of ore removal and scraper; and (5) operating according to the steps, and performing downward construction circularly.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. A mechanized downward layered filling mining method for mining in a broken thin ore body vein is characterized by comprising the following steps:
the method comprises the following steps: layering, wherein the height of the middle section is 40m, the layering height is 2.5-3.0m, and the length is 50-100m;
step two: the method comprises the following steps of (1) transfixion exploitation, namely exploiting a middle-section transfixion according to an actual standard, and exploiting an upper-section transfixion and a lower-middle-section transfixion;
step three: performing roadway mining, namely mining a middle-section vein-following roadway beside the lower-middle-section vein-passing roadway, and mining a vein-internal roadway in the middle-and-upper-section vein-passing roadway;
step four: the method comprises the following steps of well body mining, constructing a pedestrian shaft and a pedestrian ventilation shaft, arranging a draw shaft connecting roadway, mining a first draw shaft and a second draw shaft at the two sides of a lower middle section threading beside a middle section vein gob-side roadway, and communicating the middle section vein-side roadway with the pedestrian shaft and the pedestrian ventilation shaft, thus completing mining-preparation engineering;
step five: mining construction, namely mining from top to bottom after the construction of a mining project is finished;
step six: constructing the slope ramp, namely manufacturing a false bottom for filling, and constructing a layer-turning slope ramp;
step seven: dredging a roadway, constructing a drop shaft connecting roadway to be communicated with a first drop shaft and a second drop shaft, and removing ores and adjusting the direction of a scraper;
step eight: and (5) circularly constructing, namely circularly constructing downwards according to the steps.
2. The method of claim 1, wherein the method comprises the following steps: and in the fourth step, rock drilling chambers are arranged in the pedestrian ventilation raise at intervals along the height direction, and horizontal medium-length holes are arranged in the rock drilling chambers.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110052004.4A CN112855158B (en) | 2021-01-15 | 2021-01-15 | Mechanical downward layered filling mining method for mining preparation in broken thin ore body vein |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110052004.4A CN112855158B (en) | 2021-01-15 | 2021-01-15 | Mechanical downward layered filling mining method for mining preparation in broken thin ore body vein |
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| CN112855158A CN112855158A (en) | 2021-05-28 |
| CN112855158B true CN112855158B (en) | 2022-10-04 |
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| CN114165236B (en) * | 2021-12-02 | 2023-05-26 | 紫金矿业集团股份有限公司 | Middle-section bidirectional rock drilling centralized ore-drawing mining method |
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