CN211977724U - Fan-shaped stoping medium-length hole for treating suspended top of cutting groove - Google Patents
Fan-shaped stoping medium-length hole for treating suspended top of cutting groove Download PDFInfo
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- CN211977724U CN211977724U CN202020606138.7U CN202020606138U CN211977724U CN 211977724 U CN211977724 U CN 211977724U CN 202020606138 U CN202020606138 U CN 202020606138U CN 211977724 U CN211977724 U CN 211977724U
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- medium
- stoping
- length hole
- length
- cutting groove
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Abstract
The utility model relates to a mine suspended ceiling handles technical field, specifically is a handle fan-shaped stoping medium-length hole of cutting groove suspended ceiling, including cutting groove, stoping rock drill lane and stoping medium-length hole, cutting groove top formation suspended ceiling, a medium-length hole rock drill tunnel is upwards tunneled to stoping rock drill lane top, set up a plurality of rows of stoping medium-length holes in the medium-length hole rock drill tunnel, arrange between the stoping medium-length hole of every row and constitute fan-shaped stoping medium-length hole, the row face angle that is located the stoping medium-length hole of medium-length hole rock drill tunnel top is 90. The utility model is used for treating the suspended ceiling at a higher position, a bracket is not needed to be arranged below the suspended ceiling, and personnel do not need to enter a dead zone to drill and blast on the bracket, thereby not only ensuring the personal safety of the personnel, but also reducing the labor intensity of workers and improving the working efficiency; the method has the advantages of high suspended ceiling treatment efficiency, good safety, strong operability, good treatment effect and the like.
Description
Technical Field
The utility model relates to a mine suspended ceiling handles technical field, specifically is a handle fan-shaped stoping medium-length hole that cuts cut groove suspended ceiling.
Background
The drawing groove is also called as a cutting groove, and the digging quality of the cutting groove is directly related to the size of loss and dilution of ore formed by a free surface during ore collapse. The groove drawing is mainly carried out by three methods, namely a shallow hole groove drawing method, a horizontal deep hole groove drawing method and a vertical deep hole groove drawing method. The mining method needing cutting grooves mainly comprises the following steps: a sublevel stope method, a sublevel stope method and a sublevel caving method. The precondition that the ore can be smoothly extracted by the mining methods is that the groove is smoothly pulled by the cutting groove, and once the suspended ceiling fault occurs in the groove pulling process, the subsequent processes are seriously influenced. When the slot-drawing blasting is performed, if the blasting effect is not good, the bursting is incomplete, and the slot-drawing blasting is generally called as 'suspended ceiling'.
When the groove is subjected to the condition of suspended ceiling, the cutting groove cannot be formed according to the expected requirement if the blasting is continued without treatment, and the condition becomes worse, so that the treatment is more difficult and unsafe. The general processing method is that personnel enters a blasting dead zone below a suspended ceiling, a gas-leg rock drill is used for drilling medium-length holes on an undisrupted rock body according to a shallow hole ore-breaking method, and then charging blasting is carried out. In the practical application process, more hole sites need to be dug manually, time and labor are wasted, the suspended ceiling is difficult to clean at one time, multiple times of treatment are needed, the efficiency is low, and the normal production work is influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a handle fan-shaped stoping medium-length hole of cutting groove suspended ceiling.
The utility model provides a its technical problem adopt following technical scheme to realize:
the fan-shaped stoping medium-length hole comprises a cutting groove, a stoping rock drilling roadway and a stoping medium-length hole, wherein the suspended top is formed above the cutting groove, a medium-length hole rock drilling roadway is upwards tunneled above the stoping rock drilling roadway, a plurality of rows of stoping medium-length holes are arranged in the medium-length hole rock drilling roadway, each row of stoping medium-length holes are distributed to form a fan-shaped stoping medium-length hole, the drainage surface angle of the stoping medium-length hole positioned at the uppermost part of the medium-length hole rock drilling roadway is 90 degrees, and the drainage surface angle of the rest of the stoping medium-length holes is 60-70 degrees.
Preferably, the row face angle of the medium-length hole rock drilling roadway is 80 degrees.
Preferably, the side hole angle of the fan-shaped medium-length hole is 40-70 degrees, the hole depth is 5-8m, the diameter of the medium-length hole is 55-70mm, and the row spacing of the orifices of the medium-length holes of adjacent rows is 0.8-1.5 m.
Preferably, the deep holes in the adjacent rows are staggered with each other.
Through adopting foretell technical scheme, the beneficial effects of the utility model are that: the utility model provides a cutting groove form in-process appear after the suspended ceiling, through upwards drivage a medium-length hole rock drilling tunnel above stoping rock drilling tunnel, can reduce the intensity of suspended ceiling, rethread drill out in medium-length hole rock drilling tunnel be fan-shaped and be the stoping medium-length hole of specific angle, can drop the blasting of suspended ceiling step by step when blasting, can be under the condition that punches as few as possible, will hang the whole blasting of top, can not appear hanging the top clearance incomplete condition; high suspended ceiling treatment efficiency, good safety, strong operability, good treatment effect and the like.
Drawings
FIG. 1 is a schematic diagram of the sector-shaped stoping medium-length hole for processing the cutting groove suspended roof.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example (b):
the structure of the fan-shaped stoping medium-length hole 3 for processing the suspended roof 4 of the cutting groove 1 in this embodiment comprises the cutting groove 1, a stoping rock drilling lane 2 and a stoping medium-length hole 3, as shown in fig. 1, the suspended roof 4 is formed above the cutting groove 1, a medium-length hole rock drilling tunnel 5 is upwards tunneled above the stoping rock drilling lane 2, six rows of stoping medium-length holes 3 are arranged in the medium-length hole rock drilling tunnel 5, the stoping medium-length holes 3 in each row are distributed among the stoping medium-length holes 3 to form the fan-shaped stoping medium-length hole 3, the drainage face angle of the stoping medium-length hole 3(a) positioned at the uppermost part of the medium-length hole rock drilling tunnel 5 is 90 degrees, the drainage face angle of the other stoping medium-length holes 3(b, c, d, e, f) is 70 degrees, and the drainage face angle; the side hole angle of the fan-shaped medium-length hole is 60 degrees, the hole depth is 8m, the diameter of the medium-length hole is 70mm, and the row spacing of the orifices of the medium-length holes in adjacent rows is 1.3 m; the deep holes in the adjacent rows are arranged in a staggered manner.
When the suspended roof 4 appears on the cutting groove 1, the stoping rock drilling lane 2 is perpendicular to the cutting groove 1, a medium-length hole rock drilling lane 5 is excavated upwards above the stoping rock drilling lane 2, a suspension ladder is installed on the medium-length hole rock drilling lane 5, drilling personnel move up and down by using the suspension ladder, a fan-shaped medium-length hole is drilled in the medium-length hole rock drilling lane 5 according to the side hole angle of 60 degrees and the hole depth of 8m, the diameter of the medium-length hole is 70mm, a explosive loader is used for filling explosives into the medium-length hole, explosive lengths in medium-length holes (a, b, c, d, e and f) of the fan-shaped stoping medium-length hole 3 are connected by using 18m millisecond detonating pipes, the points f are detonated, points e, d, c and b are detonated in sequence, finally, the points a are detonated, row by row, the suspended roof 4 is detonated by one time.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the description of such combinations is not exhaustive in the present specification only for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (4)
1. The fan-shaped stoping medium-length hole comprises a cutting groove, a stoping rock drilling roadway and a stoping medium-length hole and is characterized in that the suspended roof is formed above the cutting groove, a medium-length hole rock drilling roadway is upwards tunneled above the stoping rock drilling roadway, a plurality of rows of stoping medium-length holes are arranged in the medium-length hole rock drilling roadway, each row of stoping medium-length holes are distributed to form the fan-shaped stoping medium-length hole, the drainage face angle of the stoping medium-length hole positioned at the uppermost part of the medium-length hole rock drilling roadway is 90 degrees, and the drainage face angle of the rest stoping medium-length holes is 60-70 degrees.
2. The fan-shaped stoping medium-length hole for processing the suspended top of the cutting groove as claimed in claim 1, wherein: the array angle of the medium-length hole rock drilling roadway is 80 degrees.
3. The fan-shaped stoping medium-length hole for processing the suspended top of the cutting groove as claimed in claim 2, wherein: the side hole angle of the fan-shaped medium-length hole is 40-70 degrees, the hole depth is 5-8m, the diameter of the medium-length hole is 55-70mm, and the row distance of the orifices of the medium-length holes in adjacent rows is 0.8-1.5 m.
4. The fan-shaped stoping medium-length hole for processing the suspended top of the cutting groove as claimed in claim 3, wherein: the deep holes in the adjacent rows are arranged in a staggered manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020606138.7U CN211977724U (en) | 2020-04-21 | 2020-04-21 | Fan-shaped stoping medium-length hole for treating suspended top of cutting groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020606138.7U CN211977724U (en) | 2020-04-21 | 2020-04-21 | Fan-shaped stoping medium-length hole for treating suspended top of cutting groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211977724U true CN211977724U (en) | 2020-11-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020606138.7U Expired - Fee Related CN211977724U (en) | 2020-04-21 | 2020-04-21 | Fan-shaped stoping medium-length hole for treating suspended top of cutting groove |
Country Status (1)
| Country | Link |
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| CN (1) | CN211977724U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113605895A (en) * | 2021-09-15 | 2021-11-05 | 长沙矿山研究院有限责任公司 | Safe and efficient mining method for sectional medium-length hole stope |
-
2020
- 2020-04-21 CN CN202020606138.7U patent/CN211977724U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113605895A (en) * | 2021-09-15 | 2021-11-05 | 长沙矿山研究院有限责任公司 | Safe and efficient mining method for sectional medium-length hole stope |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201120 Termination date: 20210421 |