CN111520141A - Deep hole arrangement process for stope recovery in two-step stope - Google Patents
Deep hole arrangement process for stope recovery in two-step stope Download PDFInfo
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- CN111520141A CN111520141A CN202010194191.5A CN202010194191A CN111520141A CN 111520141 A CN111520141 A CN 111520141A CN 202010194191 A CN202010194191 A CN 202010194191A CN 111520141 A CN111520141 A CN 111520141A
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000011084 recovery Methods 0.000 title description 4
- 238000005422 blasting Methods 0.000 claims abstract description 15
- 238000005065 mining Methods 0.000 claims abstract description 15
- 238000005553 drilling Methods 0.000 claims abstract description 13
- 239000011435 rock Substances 0.000 claims abstract description 10
- 238000002360 preparation method Methods 0.000 claims abstract description 8
- 210000003462 vein Anatomy 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 238000010924 continuous production Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
- F42D3/04—Particular applications of blasting techniques for rock blasting
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Remote Sensing (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention discloses a deep hole arrangement process for two-step stope, wherein the upper part utilizes the original exploratory drift as a large-diameter deep hole rock drilling chamber, no mining preparation project is performed, T150 down-hole drills are used for alternately arranging downward fan-shaped large-diameter deep holes, and after bottom-drawing of the middle deep hole is completed, the bottom is taken as a free surface to perform layered inverted-ladder-shaped downward blasting.
Description
Technical Field
The invention relates to the technical field of mining engineering, in particular to a deep hole arrangement process for stoping in a two-step stope.
Background
At present, a step-by-step filling mining method is usually adopted for thick and large ore bodies of metal mines, and when the stope of one step basically finishes mining and filling, the stope of two steps is required to be mined in order to ensure continuous production and ore removal. When two steps are adopted for the ore pillar, in order to facilitate rock drilling, a large amount of mining accuracy work is required like when one step is adopted for the ore room, the mining accuracy engineering quantity is increased, large blocks are easily generated in the blasting process, the stoping cost is increased, the two steps of stoping period is prolonged, and the continuous production of a mine is influenced, so that the deep hole arrangement process for stoping in the two steps of stopes is designed.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention discloses a deep hole arrangement process for two-step stope, which aims to solve the problems that during two-step stope, the stope work is large, the mining cost is increased, the two-step stope period is long, and further the continuous production of the whole mine is influenced.
The invention discloses a deep hole arrangement process for stope in two steps, which comprises the following specific process steps:
the method comprises the following steps: the upper part of the main shaft is used as a large-diameter deep hole rock drilling chamber by utilizing the original exploratory vein, and a mining preparation project is not performed;
step two: downwards fan-shaped large-diameter deep holes are distributed in a staggered mode by using a T150 down-the-hole drilling machine, the distributed deep holes 1, 2 and 3 are in a row, the deep holes 4, 5 and 6 are in a row, and the two rows of 6 holes are sequentially distributed in a staggered mode to form a plurality of groups, wherein the angle of fan-shaped holes distributed in 1-1 ' is 72 degrees, the angle of fan-shaped holes distributed in 2-2 ' is 87 degrees, the angle of fan-shaped holes distributed in 3-3 ' is reverse 83 degrees, the angle of fan-shaped holes distributed in 4-4 ' is 83 degrees, the angle of fan-shaped holes distributed in 5-5 ' is reverse 87 degrees, and the angle of;
step three: and after the bottom of the medium-length hole is pulled, the bottom is taken as a free surface to perform layered inverted-ladder-shaped downward blasting.
Preferably, the hole diameter of each drill hole in the second step is 160mm, the rock drilling height is 35m, the distance between adjacent holes is 1.5m, and the distance between hole bottoms is 4 m.
The beneficial effects are that: the mining preparation engineering is simple in arrangement, small in mining preparation workload, relatively simple in charging and blasting operation, and capable of greatly reducing the block rate under the condition of well controlling the deflection of the hole bottom, small in layered blasting single-hole dosage and small in damage to the filling body, so that the mining preparation method is a low-cost and safe stoping scheme.
Drawings
FIG. 1 is a plan view of a deep hole placement process for two-step stope recovery according to the present invention;
FIG. 2 is a longitudinal cross-sectional view of the arrangement of the deep hole arrangement process of the two-step stope mining of the present invention;
fig. 3 is a cross-sectional layout view of a deep hole layout process for two-step stope recovery according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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.
As shown in fig. 1-3, the invention discloses a deep hole arrangement process for two-step stope, which comprises the following specific process steps:
the method comprises the following steps: the existing ore blocks are arranged in a vertical direction, and are divided into ore rooms and ore pillars. The length of ore block is exactly the thickness of ore body, and the width is 30 meters, and its ore deposit room and ore pillar width are 15 meters, and the height is 60 meters in stage height, and the ore deposit room has been stoped, is filled and ends, and the stope is carried out to two step ore pillars now, and upper portion utilizes original prospect wire to pass as major diameter deep hole rock drilling chamber, does not do the mining preparation engineering, is convenient for utilize the fan-shaped inclined hole of the crisscross construction of original tunnel, and is favorable to having reduced the mining preparation work load, has reduced the exposed area of stope roof, reduces the potential safety hazard, has shortened the stope cycle of ore pillar.
The bottom structure utilizes original exploratory drift as a bottom middle hole rock drilling drift, an ore removal drift is constructed to the drift by adjacent exploratory drift through a filled stope along the original ore removal drift, the excavation construction of partial drift is the re-excavation of a stope bottom filling body, in order to ensure the safe construction, a steel arch frame support is adopted in partial sections, a 26 m high-cutting raise is constructed upwards from-290 middle sections by utilizing a cage hanging method, and a blasting free surface is provided for medium-length hole bottom drawing cutting.
Step two: downward fan-shaped large-diameter deep holes are distributed in a staggered mode through a T150 down-the-hole drilling machine, the distributed deep holes 1, 2 and 3 are in a row, the deep holes 4, 5 and 6 are in a row, and the two rows of 6 holes are sequentially distributed in a staggered mode to form a plurality of groups, wherein the angle of fan-shaped holes distributed 1-1 'is 72 degrees, the angle of fan-shaped holes distributed 2-2' is 87 degrees, the angle of fan-shaped holes distributed 3-3 'is reverse 83 degrees, the angle of fan-shaped holes distributed 4-4' is 83 degrees, the angle of fan-shaped holes distributed 5-5 'is reverse 87 degrees, the angle of fan-shaped holes distributed 6-6' is reverse 72 degrees, the aperture of each drilled hole is phi 160mm, the rock drilling height is 35m, the distance between adjacent.
The adjacent stopes are stoped and filled stopes, in order to prevent the stope from deflecting downwards towards the fan-shaped large-diameter deep hole and the medium-diameter deep hole, the adjacent filling bodies are damaged during blasting, the stope safety is affected and ore dilution is caused, therefore, 1.5 meters of the adjacent filling bodies and the positions of the two filling bodies are respectively reserved without rock drilling construction of large and medium holes, the actual stope width is 12 meters, and the ores on the two sides are recovered by a natural collapse mode of blasting vibration.
Step three: the bottom-pulling cutting raise is utilized to perform free surface blasting to form a bottom-pulling cutting groove, starting from the raise of the bottom-pulling cutting groove in the center of a stope, and performing upward and downward disc retreating type blasting to form a cutting layer, so that a bottom-pulling project is completed, after the bottom-pulling of the middle deep hole is completed, the bottom is used as the free surface to perform layered inverted-ladder-shaped downward blasting, the blasting height of each layer is about 3m, top-breaking blasting is performed when the height is remained by 6m, and the lateral blasting of the remained deep holes is completed as soon as possible after the top of the stope is.
Finally, it should be noted that: the above embodiments are only used to illustrate the present invention and do not limit the technical solutions described in the present invention; thus, while the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted; all such modifications and variations are intended to be included herein within the scope of this disclosure and the present invention and protected by the following claims.
Claims (2)
1. A deep hole arrangement process for stoping in a two-step stope is characterized by comprising the following specific process steps:
the method comprises the following steps: the upper part of the main shaft is used as a large-diameter deep hole rock drilling chamber by utilizing the original exploratory vein, and a mining preparation project is not performed;
step two: downwards fan-shaped large-diameter deep holes are distributed in a staggered mode by using a T150 down-the-hole drilling machine, the distributed deep holes 1, 2 and 3 are in a row, the deep holes 4, 5 and 6 are in a row, and the two rows of 6 holes are sequentially distributed in a staggered mode to form a plurality of groups, wherein the angle of fan-shaped holes distributed in 1-1 ' is 72 degrees, the angle of fan-shaped holes distributed in 2-2 ' is 87 degrees, the angle of fan-shaped holes distributed in 3-3 ' is reverse 83 degrees, the angle of fan-shaped holes distributed in 4-4 ' is 83 degrees, the angle of fan-shaped holes distributed in 5-5 ' is reverse 87 degrees, and the angle of;
step three: and after the bottom of the medium-length hole is pulled, the bottom is taken as a free surface to perform layered inverted-ladder-shaped downward blasting.
2. The two-step stope stoping longhole layout process according to claim 1, wherein: in the second step, the aperture of each drill hole is phi 160mm, the rock drilling height is 35m, the distance between adjacent holes is 1.5m, and the distance between hole bottoms is 4 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010194191.5A CN111520141A (en) | 2020-03-19 | 2020-03-19 | Deep hole arrangement process for stope recovery in two-step stope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010194191.5A CN111520141A (en) | 2020-03-19 | 2020-03-19 | Deep hole arrangement process for stope recovery in two-step stope |
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| CN111520141A true CN111520141A (en) | 2020-08-11 |
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| CN202010194191.5A Pending CN111520141A (en) | 2020-03-19 | 2020-03-19 | Deep hole arrangement process for stope recovery in two-step stope |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177613A (en) * | 2020-11-13 | 2021-01-05 | 长沙矿山研究院有限责任公司 | Sector medium-diameter deep hole mining process for steeply inclined medium-thickness ore body |
| CN112196537A (en) * | 2020-11-13 | 2021-01-08 | 长沙矿山研究院有限责任公司 | Medium-diameter deep hole composite slot drawing process for steeply inclined medium-thickness ore body |
| CN113338935A (en) * | 2021-04-21 | 2021-09-03 | 铜陵有色金属集团股份有限公司 | Method for delineating ore body |
| CN114109388A (en) * | 2022-01-27 | 2022-03-01 | 东北大学 | Downward sequential stepped ore stope ore dropping method for deep thick and large ore body |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594903A (en) * | 2014-11-19 | 2015-05-06 | 攀钢集团工程技术有限公司 | Ore breaking method for whole-section high combination rock drilling blasting |
| RU2560734C1 (en) * | 2014-07-15 | 2015-08-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Северо-Кавказский горно-металлургический институт (государственный технологический университет) (СКГМИ ГТУ) | Development method of ultra-thick deposits using block and chamber system |
| CN106761757A (en) * | 2016-12-07 | 2017-05-31 | 江西理工大学 | A kind of full stage combination chisel it is quick-fried fall the efficient mining methods of ore deposit |
| CN108518223A (en) * | 2018-02-11 | 2018-09-11 | 中冶北方（大连）工程技术有限公司 | A kind of vertical long hole spheric cartridge falls mine method |
| CN108547618A (en) * | 2018-04-04 | 2018-09-18 | 长沙有色冶金设计研究院有限公司 | A kind of two steps mining methods leave the recovery process of studding |
| CN108798672A (en) * | 2018-06-11 | 2018-11-13 | 安徽大昌矿业集团有限公司 | A kind of mining methods of the big area's ore high-efficiency mining that collapses |
| CN109236295A (en) * | 2018-11-14 | 2019-01-18 | 中南大学 | A kind of three step stoping methods suitable for Deep Thick large ore deposit |
| CN109723441A (en) * | 2019-01-29 | 2019-05-07 | 福州大学 | Control ground pressure two step mechanization of pillars of a house collaboration high sublevel is without solid waste production practice |
-
2020
- 2020-03-19 CN CN202010194191.5A patent/CN111520141A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2560734C1 (en) * | 2014-07-15 | 2015-08-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Северо-Кавказский горно-металлургический институт (государственный технологический университет) (СКГМИ ГТУ) | Development method of ultra-thick deposits using block and chamber system |
| CN104594903A (en) * | 2014-11-19 | 2015-05-06 | 攀钢集团工程技术有限公司 | Ore breaking method for whole-section high combination rock drilling blasting |
| CN106761757A (en) * | 2016-12-07 | 2017-05-31 | 江西理工大学 | A kind of full stage combination chisel it is quick-fried fall the efficient mining methods of ore deposit |
| CN108518223A (en) * | 2018-02-11 | 2018-09-11 | 中冶北方（大连）工程技术有限公司 | A kind of vertical long hole spheric cartridge falls mine method |
| CN108547618A (en) * | 2018-04-04 | 2018-09-18 | 长沙有色冶金设计研究院有限公司 | A kind of two steps mining methods leave the recovery process of studding |
| CN108798672A (en) * | 2018-06-11 | 2018-11-13 | 安徽大昌矿业集团有限公司 | A kind of mining methods of the big area's ore high-efficiency mining that collapses |
| CN109236295A (en) * | 2018-11-14 | 2019-01-18 | 中南大学 | A kind of three step stoping methods suitable for Deep Thick large ore deposit |
| CN109723441A (en) * | 2019-01-29 | 2019-05-07 | 福州大学 | Control ground pressure two step mechanization of pillars of a house collaboration high sublevel is without solid waste production practice |
Non-Patent Citations (2)
| Title |
|---|
| 任凤玉: "《金属矿床地下开采 第3版》", 31 July 2018, 冶金工业出版社 * |
| 陈武昌等: "大直径深孔阶段矿房采矿法在金厂峪金矿的实践", 《黄金》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177613A (en) * | 2020-11-13 | 2021-01-05 | 长沙矿山研究院有限责任公司 | Sector medium-diameter deep hole mining process for steeply inclined medium-thickness ore body |
| CN112196537A (en) * | 2020-11-13 | 2021-01-08 | 长沙矿山研究院有限责任公司 | Medium-diameter deep hole composite slot drawing process for steeply inclined medium-thickness ore body |
| CN112196537B (en) * | 2020-11-13 | 2021-08-10 | 长沙矿山研究院有限责任公司 | Medium-diameter deep hole composite slot drawing process for steeply inclined medium-thickness ore body |
| CN112177613B (en) * | 2020-11-13 | 2021-08-17 | 长沙矿山研究院有限责任公司 | Sector medium-diameter deep hole mining process for steeply inclined medium-thickness ore body |
| CN113338935A (en) * | 2021-04-21 | 2021-09-03 | 铜陵有色金属集团股份有限公司 | Method for delineating ore body |
| CN113338935B (en) * | 2021-04-21 | 2022-07-29 | 铜陵有色金属集团股份有限公司 | Method for delineating ore body |
| CN114109388A (en) * | 2022-01-27 | 2022-03-01 | 东北大学 | Downward sequential stepped ore stope ore dropping method for deep thick and large ore body |
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Application publication date: 20200811 |