CN220890217U - Repair system for damaged ore pillar of underground mine - Google Patents
Repair system for damaged ore pillar of underground mine Download PDFInfo
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- CN220890217U CN220890217U CN202322629063.0U CN202322629063U CN220890217U CN 220890217 U CN220890217 U CN 220890217U CN 202322629063 U CN202322629063 U CN 202322629063U CN 220890217 U CN220890217 U CN 220890217U
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- ore pillar
- rigid support
- underground mine
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- 239000002002 slurry Substances 0.000 claims description 9
- 229920001971 elastomer Polymers 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 2
- 230000002787 reinforcement Effects 0.000 description 8
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 239000011707 mineral Substances 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- Working Measures On Existing Buildindgs (AREA)
Abstract
The utility model discloses a repairing system for an underground mine damaged ore pillar, and belongs to the field of mine construction. The concrete pouring device comprises concrete pouring equipment and a rigid supporting piece; the rigid support piece is arranged at a damaged position on the lower side of the ore pillar, the bottom of the rigid support piece is contacted with the lower end face of the damaged position of the ore pillar, and the top of the rigid support piece is contacted with the top of the damaged position of the ore pillar; the concrete pouring equipment is used for filling the space of the damaged position of the ore pillar with concrete. The utility model can solve the problem that the lower side and the bottom of the stope ore pillar are difficult to repair after falling, provide enough supporting force for the raw ore pillar which is not collapsed at the upper side, and reduce the risk of safety accidents.
Description
Technical Field
The utility model belongs to the field of mine construction, and particularly relates to a repairing system for an underground mine damaged ore pillar.
Background
The ore pillar refers to a certain amount of ore bodies left in order to protect personnel safety and the integrity of a roadway in mining work, and goaf stopes formed in the stoping process are maintained mainly by the stability of surrounding rocks and the supporting capacity of the ore pillar in mine production.
However, as the underground stope ore pillars are influenced by factors such as blast shock waves, ground pressure and the like throughout the year, the ore pillars can be damaged to different degrees along with the time, so that the supporting force of the ore pillars is reduced, and particularly after the ore pillars are collapsed in a large area, if the underground stope ore pillars are not repaired timely, the risk of safety accidents is greatly improved. Currently, in the event that a portion of the underside and bottom of the pillar is damaged, it is common to repair the damaged pillar using concrete placement of the damaged portion. However, because of the difficulty in concreting and roof-forming, the solidified concrete is difficult to provide enough supporting force for the raw ore pillar which is not collapsed at the upper side, so that the ore pillar is at risk of continuous collapse, and the part of the bearing ore pillar which is not damaged at the top is not substantially protected.
The Chinese patent application number is: CN201611046220.3, publication date: patent literature on the day of 2017, 3 months and 22 days discloses a prestressed artificial ore pillar, which comprises an artificial ore pillar and four groups of prestressed structures spliced on the artificial ore pillar, wherein each prestressed structure comprises a self-locking pressurizing device and pressure bearing mechanisms fixedly connected to two ends of the self-locking pressurizing device, and the pressure bearing mechanisms are fixedly connected with the artificial ore pillar. The proposal is characterized in that the artificial ore pillar is arranged as a supporting maintenance stope, but the artificial ore pillar needs higher manufacturing and installation cost, and the problem that the lower side and the bottom of the original ore pillar are difficult to repair after being collapsed can not be solved.
The Chinese patent application number is: CN202110754742.3, publication date: 2021, 8 months and 13 days, discloses a folding reinforcement device and a layered recovery method, wherein the folding reinforcement device comprises two oppositely arranged rectangular reinforcement surfaces and a connecting structure for connecting the two rectangular reinforcement surfaces, and the folding reinforcement device is an integral structure made of an elastomer material, so that the rectangular reinforcement surfaces can stretch and retract along the length direction and the width direction, and the connecting structure can stretch and retract to increase and decrease the distance between the two rectangular reinforcement surfaces, thereby realizing folding or unfolding of the folding reinforcement device. Although the scheme forms a certain support for the ore pillar through the folding reinforcing device to improve the overall stability of the ore pillar, the problem that the underside and the bottom of the ore pillar are difficult to repair after being spanned is not solved.
Disclosure of Invention
1. Problems to be solved
Aiming at the problem that the lower side and the bottom of the existing stope ore pillar are difficult to repair after being spanned, the utility model provides a repair system for an underground mine damaged ore pillar, which can solve the problem that the lower side and the bottom of the stope ore pillar are difficult to repair after being spanned, provide enough supporting force for an original ore pillar which is not collapsed at the upper side, and reduce the risk of safety accidents.
2. Technical proposal
In order to solve the problems, the utility model adopts the following technical scheme.
A repair system for an underground mine damaged ore pillar comprises concrete pouring equipment and a rigid support; the rigid support piece is arranged at a damaged position on the lower side of the ore pillar, the bottom of the rigid support piece is contacted with the lower end face of the damaged position of the ore pillar, and the top of the rigid support piece is contacted with the top of the damaged position of the ore pillar; the concrete pouring equipment is used for filling the space of the damaged position of the ore pillar with concrete.
As a further improvement of the technical scheme, the concrete pouring equipment comprises a baffle plate and a concrete filling device; the baffle is fixedly arranged along the edge of the damaged position of the ore pillar, and is provided with a feeding hole; and a discharge hole of the concrete filling device is connected with the feed hole.
As a further improvement of the technical scheme, the concrete filling device comprises a storage vat and a slurry pump; the storage vat is connected with an inlet of the slurry pump through a pipeline, and an outlet of the slurry pump is connected with the feeding hole through a pipeline.
As a further improvement of the technical proposal, the utility model also comprises a cover plate; threaded holes are formed in the baffle plate at the feeding hole, matched through holes are formed in the cover plate, and the cover plate seals the feeding hole through bolts penetrating through the through holes and spirally extending into the threaded holes.
As a further improvement of the technical scheme, the top of the rigid support piece is fixedly connected with a support plate, and the area of the contact surface between the support plate and the top end of the damaged position of the ore pillar is larger than the cross section of the rigid support piece.
As a further improvement of the technical scheme, the upper side of the supporting plate is covered with a rubber layer or a sponge layer.
As a further improvement of the technical solution, the rigid support is a jack.
As a further improvement of the technical scheme, the bottom of the rigid support member is provided with angle steel or a bracket fixedly arranged along the circumferential direction of the rigid support member.
As a further improvement of the technical scheme, two sides of the ore pillar are provided with ore drawing oblique penetration.
3. Advantageous effects
Compared with the prior art, the utility model has the beneficial effects that:
(1) According to the repairing system for the damaged ore pillar of the underground mine, on the basis of a conventional method for pouring concrete into the damaged position of the ore pillar, the rigid supporting piece for supporting the damaged top of the ore pillar is fixedly arranged in the damaged position of the ore pillar and then matched with a poured concrete layer, so that sufficient supporting force is provided for an uncorrupted raw ore pillar at the upper side, the supporting strength of the whole structure of the ore pillar is ensured, and the risk of safety accidents is reduced;
(2) According to the repairing system for the damaged ore pillar of the underground mine, when concrete is poured, the pouring efficiency of the concrete is low due to the initial flowing property of the concrete, and the space formed by the damaged position of the ore pillar can be sealed through the baffle by arranging the baffle and the concrete filling device, so that the concrete pouring of the whole damaged space of the ore pillar is completed at one time, and the pouring efficiency is improved;
(3) According to the repairing system for the damaged ore pillar of the underground mine, the supporting plate which is in contact with the top end of the damaged position of the ore pillar is arranged on the top of the rigid supporting piece in a larger area, so that the supporting stability of the rigid supporting piece on an uncollapsed raw ore pillar is improved, and the bulge and the recess of the top end of the damaged position of the ore pillar can be compensated through the flexibility of the rubber layer or the sponge layer by covering the upper side of the supporting plate with the rubber layer or the sponge layer, so that the supporting strength of the uncollapsed raw ore pillar is improved;
(4) According to the repairing system for the damaged ore pillar of the underground mine, the angle steel or the bracket fixedly installed along the circumferential direction of the rigid support piece is arranged at the bottom of the rigid support piece, so that the structural stability of the rigid support piece is improved.
Drawings
FIG. 1 is a schematic diagram of a repair system according to the present utility model;
In the figure: 1. a rigid support; 2. a pillar; 3. concrete; 4. and ore drawing is obliquely carried out.
Detailed Description
Exemplary embodiments of the present utility model are described in detail below. While these exemplary embodiments are described in sufficient detail to enable those skilled in the art to practice the utility model, it is to be understood that other embodiments may be realized and that various changes to the utility model may be made without departing from the spirit and scope of the utility model. The following more detailed description of the embodiments of the utility model is not intended to limit the scope of the utility model, as claimed, but is merely illustrative and not limiting of the utility model's features and characteristics in order to set forth the best mode of carrying out the utility model and to sufficiently enable those skilled in the art to practice the utility model. Accordingly, the scope of the utility model is limited only by the attached claims.
Example 1
A repairing system for an underground mine damaged ore pillar is used for repairing the damaged position of the ore pillar after the position of the lower side or the bottom of the ore pillar of the underground mine is damaged, and the concrete structure and the technical effects of the repairing system are described in detail below.
As shown in fig. 1, a pillar 2 in a stope supports the top of the stope, and two sides of the pillar 2 are provided with ore drawing oblique penetrating holes 4. The repair system comprises a concrete placement device and a rigid support 1. The rigid support 1 is arranged at a damaged position on the lower side of the ore pillar 2, the bottom of the rigid support is contacted with the lower end face of the damaged position of the ore pillar 2, the top of the rigid support is contacted with the top of the damaged position of the ore pillar 2, and the concrete pouring equipment is used for filling the space of the damaged position of the ore pillar 2 with concrete 3.
Through the structure, on the basis of a conventional method for pouring concrete into a damaged position of a mineral pillar, the rigid support piece 1 for supporting the damaged top of the mineral pillar is fixedly installed in the damaged position of the mineral pillar and then is matched with a poured concrete layer, so that sufficient supporting force is provided for an uncorrupted raw mineral pillar at the upper side, the supporting strength of the integral structure of the mineral pillar is ensured, and the risk of safety accidents is reduced.
In this embodiment, the rigid support member 1 is a jack, the top of the rigid support member is fixedly connected with a support plate, the area of the contact surface between the support plate and the top end of the damaged position of the pillar 2 is larger than the cross section of the rigid support member 1, and the upper side of the support plate is covered with a rubber layer or a sponge layer. The supporting plate contacted with the top end of the ore pillar damage position in a larger area improves the supporting stability of the rigid supporting piece 1 on the uncollapsed crude ore pillar, and the rubber layer or the sponge layer on the upper side of the supporting plate can compensate the bulge and the dent of the top end of the ore pillar damage position through the flexibility of the rubber layer or the sponge layer, thereby improving the supporting strength on the uncollapsed crude ore pillar. It should be noted that, the bottom of the rigid support member 1 is provided with angle steel or a bracket fixedly installed along the circumferential direction thereof, so that the structural stability of the rigid support member 1 itself can be improved.
The concrete pouring equipment comprises a baffle and a concrete filling device, wherein the baffle is fixedly arranged along the edge of the damaged position of the ore pillar 2, a feeding hole is formed in the baffle, and a discharge hole of the concrete filling device is connected with the feeding hole. Specifically, the concrete filling device comprises a storage vat and a slurry pump, wherein the storage vat is connected with an inlet of the slurry pump through a pipeline, and an outlet of the slurry pump is connected with a feeding hole through a pipeline.
When pouring concrete, the pouring efficiency of the concrete is lower due to the initial flowing property of the concrete, and the space formed at the broken position of the ore pillar can be sealed through the baffle by arranging the baffle and the concrete filling device, so that the concrete pouring of the whole broken space of the ore pillar is completed at one time, and the pouring efficiency is improved.
In addition, still include the apron, offered the screw hole on the baffle of feed port department, offered assorted through-hole on the apron, after pouring, take out the pipeline, make the apron seal the feed port through the bolt that passes through the through-hole and spirally stretch into the screw hole.
In summary, the system for repairing the damaged ore pillar of the underground mine can solve the problem that the lower side and the bottom of the ore pillar of the stope are difficult to repair after being spanned, provide enough supporting force for the raw ore pillar which is not collapsed at the upper side, and reduce the risk of safety accidents.
Claims (9)
1. A repair system for an underground mine damaged pillar, characterized by: comprising a concrete pouring device and a rigid support (1); the rigid support (1) is arranged at a damaged position on the lower side of the ore pillar (2), the bottom of the rigid support is contacted with the lower end face of the damaged position of the ore pillar (2), and the top of the rigid support is contacted with the top of the damaged position of the ore pillar (2); the concrete pouring equipment is used for filling the space of the damaged position of the ore pillar (2) with concrete (3).
2. A repair system for an underground mine damaged pillar according to claim 1, wherein: the concrete pouring equipment comprises a baffle and a concrete filling device; the baffle is fixedly arranged along the edge of the damaged position of the ore pillar (2), and a feeding hole is formed in the baffle; and a discharge hole of the concrete filling device is connected with the feed hole.
3. A repair system for an underground mine damaged pillar according to claim 2, wherein: the concrete filling device comprises a storage vat and a slurry pump; the storage vat is connected with an inlet of the slurry pump through a pipeline, and an outlet of the slurry pump is connected with the feeding hole through a pipeline.
4. A repair system for an underground mine damaged pillar according to claim 3, wherein: the device also comprises a cover plate; threaded holes are formed in the baffle plate at the feeding hole, matched through holes are formed in the cover plate, and the cover plate seals the feeding hole through bolts penetrating through the through holes and spirally extending into the threaded holes.
5. A repair system for an underground mine damaged pillar according to claim 1, wherein: the top of the rigid support piece (1) is fixedly connected with a support plate, and the area of a contact surface between the support plate and the top end of the damaged position of the ore pillar (2) is larger than the cross section of the rigid support piece (1).
6. A repair system for an underground mine damaged pillar according to claim 5, wherein: the upside of backup pad covers one deck rubber layer or sponge layer.
7. A repair system for a damaged pillar of an underground mine according to any one of claims 1-6, wherein: the rigid support (1) is a jack.
8. A repair system for a damaged pillar of an underground mine according to any one of claims 1-6, wherein: the bottom of the rigid support piece (1) is provided with angle steel or a bracket fixedly arranged along the circumferential direction of the rigid support piece.
9. A repair system for a damaged pillar of an underground mine according to any one of claims 1-6, wherein: the two sides of the ore pillar (2) are provided with ore drawing oblique penetrating holes (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322629063.0U CN220890217U (en) | 2023-09-26 | 2023-09-26 | Repair system for damaged ore pillar of underground mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322629063.0U CN220890217U (en) | 2023-09-26 | 2023-09-26 | Repair system for damaged ore pillar of underground mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220890217U true CN220890217U (en) | 2024-05-03 |
Family
ID=90877967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322629063.0U Active CN220890217U (en) | 2023-09-26 | 2023-09-26 | Repair system for damaged ore pillar of underground mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220890217U (en) |
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2023
- 2023-09-26 CN CN202322629063.0U patent/CN220890217U/en active Active
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