CN113882806A - Retractable mesh-shaped hole protection piece, installation method of hole protection piece and hole protection method - Google Patents
Retractable mesh-shaped hole protection piece, installation method of hole protection piece and hole protection method Download PDFInfo
- Publication number
- CN113882806A CN113882806A CN202111447255.9A CN202111447255A CN113882806A CN 113882806 A CN113882806 A CN 113882806A CN 202111447255 A CN202111447255 A CN 202111447255A CN 113882806 A CN113882806 A CN 113882806A
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- China
- Prior art keywords
- hole
- piece
- pipe network
- installation
- cone
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
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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
Abstract
The invention discloses a retractable net-shaped hole protection piece, a hole protection piece mounting method and a hole protection method, relates to the technical field of mining, and effectively solves the problems of difficult charging and complex operation caused by hole collapse in drilling after drilling construction is finished. The hole-protecting piece comprises a main pipe network and a cone, and the main pipe network is of a circular retractable net structure. The main pipe network has retractility, the hole protecting piece is arranged in the drill hole and can support the wall of the drill hole to prevent hole collapse of the drill hole, the problem of difficult charging caused by hole collapse of the drill hole after the drilling construction is finished is solved, and the tunneling blasting effect of an access stope is ensured; the hole-protecting piece has simple structure and low cost; the installation method of the hole protection piece can quickly place the hole protection piece in the drilled hole, ensures the installation efficiency, is simple to operate, has a simple structure of the installation piece, is low in cost, and is low in installation cost of the hole protection piece; the hole protecting method comprises the steps of constructing a drilling hole and installing a hole protecting piece, so that the drilling hole is prevented from collapsing, and the hole protecting method is simple, convenient to operate, high in efficiency and low in cost.
Description
Technical Field
The invention relates to the technical field of mining, in particular to a hole protecting device and a hole protecting method by using a shrinkable mesh material.
Background
In the mining process, the tunneling work is an important link in the production, and the tunneling speed has direct influence on the production efficiency of the mine. When the broken ore body of exploitation ore deposit rock, after the construction of advancing the way stope drilling finishes, often run into the hole problem of collapsing, lead to blasting in-process powder charge difficulty, the blasting effect is poor, current solution as follows:
the notice number is: the invention patent of CN102966333B provides an anti-blocking method for a mine stope and a roadway driving face bottom hole, which adopts a mode of inserting a bottom hole pipe, wherein one end of a pipe made of PVC material or other pipes is inserted into the bottom hole, and the other end of the pipe is exposed in the driving face, thereby simplifying the construction process, improving the construction efficiency, improving the charging effect, increasing the blasting footage and reducing the comprehensive mining cost. However, in the method, the pipe in the hole isolates the direct contact of the explosive and the rock while supporting the wall of the hole by the pipe, and the negative influence is generated on the blasting effect.
The notice number is: the invention patent of CN106401487B provides an automatic release device for a wall protection elastic net for preventing borehole collapse, when in installation, a protection main body plate can be bent and deformed under the action of manual force, when the protection main body plate is closed to be cylindrical, the automatic release device for the wall protection elastic net is formed, a pin rod of a rod body is inserted into a corresponding ear body I round hole, after the protection device for preventing borehole collapse enters a borehole, the protection main body plate is opened through a control method of the protection device for preventing borehole collapse, and a supporting effect is achieved on the borehole. The device has the advantages of complex structure, high cost and complex operation.
The notice number is: the invention patent of CN107288668A provides an anti-collapse hole device and an anti-collapse hole construction method, the anti-collapse hole device comprises a hollow pipe, a drill tooth and a connector, the drill tooth is fixedly connected to the front end of the hollow pipe, the connector is installed at the rear end of the hollow pipe, and a through hole penetrating through the hollow pipe is arranged on the hollow pipe at a distance of 150 mm and 200mm away from the connector. The hole collapse prevention device is reasonable in design, simple in structure, long in service life, simple in construction step operation and good in hole collapse prevention effect. However, after the drilling construction is finished, the hollow pipe is not left in the drilled hole, and if the hollow pipe is used in a broken rock body, the hollow pipe is pulled out to cause a hole collapse phenomenon, so that a series of difficulties are brought to the subsequent charging work.
Disclosure of Invention
The invention provides a hole protecting device and a hole protecting method by utilizing a shrinkable mesh material, and the existing scheme has the following problems of difficult charging caused by hole collapse in drilling after the drilling construction is finished and complex operation.
To solve the above technical problem, an embodiment of the present invention provides the following solutions:
the embodiment of the invention provides a retractable reticular hole protecting piece which comprises a main pipe network and a cone, wherein the main pipe network is of a circular retractable reticular structure;
the plane of cone is connected the main part pipe network, just the diameter of the plane of cone is greater than the external diameter of main part pipe network lie in on the plane of cone the outside of main part pipe network forms the step face.
Preferably, the material of the main pipe network is resin.
Preferably, the outer conical surface of the cone is provided with threads.
Preferably, the main pipe network is processed by 3D printing.
The embodiment of the invention provides an installation method of a shrinkable mesh-shaped hole protection piece, which is suitable for installing the shrinkable mesh-shaped hole protection piece, wherein an installation piece is used in the installation method, the installation piece is of a tubular structure, and a pull ring is arranged at one end of the installation piece, and the installation method comprises the following steps:
sleeving the mounting piece on the main body pipe network, wherein one end, far away from the pull ring, of the mounting piece is attached to the step surface, and the pull ring is exposed outside;
inserting the cone into a drill hole, pushing the mounting piece, and completely pushing the main pipe network into the drill hole;
pulling the pull ring outward to pull the mounting member out of the main body pipe network.
Preferably, the mounting has an outer diameter smaller than the diameter of the plane of the cone.
Preferably, the outer diameter of the host tubular network is slightly larger than the inner diameter of the bore;
the outer diameter of the mounting part is matched with the inner diameter of the drilling hole.
Preferably, the mounting is an acrylic tube.
Preferably, the mounting member is a PVC pipe.
The embodiment of the invention provides a hole protection method, which comprises the following steps:
constructing a drill hole in an access stope;
sleeving an installation part on the main pipe network, wherein one end, far away from the pull ring, of the installation part is attached to the step surface, and the pull ring is exposed outside; inserting the cone into the drilled hole, pushing the mounting piece, and completely pushing the main pipe network into the drilled hole; pulling the pull ring outward to pull the mounting member out of the main body pipe network;
and circulating the steps, and completing the installation of one hole protection piece after one drilling hole is constructed until all drilling holes and the installation of the hole protection pieces are completed.
The scheme of the invention at least comprises the following beneficial effects:
in the scheme, the main pipe network has retractility, the hole protecting piece is arranged in the drilled hole, the hole protecting piece can support the wall of the drilled hole and prevent the drilled hole from collapsing, the problem of difficult charging caused by the drilled hole collapsing after the drilling construction is finished can be effectively solved, and the tunneling blasting effect of an access stope is ensured; the hole-protecting piece has simple structure and low cost;
the installation method of the hole protection piece can quickly place the hole protection piece in the drilled hole, ensures the installation efficiency, is simple to operate, has a simple structure of the installation piece, is low in cost, and is low in installation cost of the hole protection piece;
the hole protecting method solves the problem of difficult charging caused by hole collapse of the drilled hole after the drilling construction is finished, one drilled hole is constructed, namely a hole protecting piece is installed, a main pipe network has retractility, the hole protecting piece is arranged in the drilled hole, the hole protecting piece can support the wall of the drilled hole, and the drilled hole is prevented from collapsing; the hole protecting method is simple, convenient to operate, high in efficiency and low in cost.
Drawings
FIG. 1 is a front view of a collapsible mesh grommet of the present invention;
FIG. 2 is a front view of the mount of the present invention;
FIG. 3 is a sectional view taken along line A-A of FIG. 2;
FIG. 4 is a schematic view of a retractable mesh-type hole guard of the present invention in a process for hole protection;
FIG. 5 is a flow chart of the installation of the grommet of the present invention;
FIG. 6 is a flow chart of a hole-guarding method of the present invention;
reference numerals:
1. a hole-protecting piece; 11. a main pipe network; 12. a cone; 13. a step surface;
2. a mounting member; 21. and (4) a pull ring.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As shown in fig. 1, the embodiment provides a retractable mesh-shaped hole-protecting member, which includes a main pipe network and a cone, wherein the main pipe network is a circular retractable mesh-shaped structure; the plane of cone is connected the main part pipe network, just the diameter of the plane of cone is greater than the external diameter of main part pipe network lie in on the plane of cone the outside of main part pipe network forms the step face. The main pipe network has retractility, and the hole protecting piece can be arranged in the drilled hole, support the wall of the drilled hole and prevent hole collapse of the drilled hole, so that the problem of difficult charging caused by hole collapse of the drilled hole after drilling construction can be effectively solved, and the tunneling blasting effect of an access stope is ensured; the hole protecting piece is simple in structure and low in cost.
Specifically, the main pipe network is made of resin and is processed by 3D printing. The outer conical surface of cone is equipped with the screw thread for the cone has propulsive effect, guarantees that the main part pipe network gets into drilling smoothly, and simultaneously, the outer conical surface of cone plays the fixed action, takes out along with the installed part when preventing the installation of main part pipe network together.
The embodiment provides an installation method of a retractable mesh-shaped hole protection piece, which is suitable for installing the retractable mesh-shaped hole protection piece, wherein an installation piece is used in the installation method, the installation piece is shown in figures 2-3, the installation piece is of a tubular structure, a pull ring is arranged at one end of the installation piece, and the pull ring can ensure that the installation piece can be pulled out after a main pipe network is fed into a drilled hole;
as shown in fig. 4 and 5, the installation method of the grommet includes:
s101, sleeving the mounting piece on the main pipe network, wherein one end, far away from the pull ring, of the mounting piece is attached to a step surface, and the pull ring is exposed outside; the mounting of the grommet to the mounting member is illustrated in figure 6.
S102, inserting the cone into a drilled hole, pushing the mounting piece, and completely pushing the main pipe network into the drilled hole;
s103, pulling the pull ring outwards to pull the mounting piece out of the main pipe network.
In particular, the outer diameter of the mount is smaller than the diameter of the plane of the cone. The outer diameter of the main pipe network is slightly larger than the inner diameter of the drill hole; the outer diameter of the mounting part is matched with the inner diameter of the drilling hole. The mounting member is an acrylic tube. The mounting piece is a PVC pipe.
The installation method of the hole protection piece of the embodiment can be used for rapidly placing the hole protection piece in the drilled hole, the installation efficiency is guaranteed, the operation is simple, the structure of the installation piece is simple, the cost is low, and the installation cost of the hole protection piece is low.
As shown in fig. 4 and 6, the present embodiment provides a hole-protecting method including:
s201, constructing a drill hole in an access stope;
s202, installing a hole protection piece, namely sleeving an installation piece on a main pipe network, wherein one end, far away from a pull ring, of the installation piece is attached to a step surface, and the pull ring is exposed outside;
s203, inserting the cone into the drilled hole, pushing the mounting piece, and completely pushing the main pipe network into the drilled hole;
s204, pulling the pull ring outwards to pull the mounting piece out of the main pipe network;
s205, circulating the steps, and after one drilling hole is constructed, completing the installation of one hole protection piece until all drilling holes and the installation of the hole protection pieces are completed. And (5) after the drilling is completely finished, charging and blasting.
The hole protecting method solves the problem of difficult charging caused by hole collapse of the drilled hole after the drilling construction is finished, one drilled hole is constructed, namely a hole protecting piece is installed, a main pipe network has retractility, the hole protecting piece is arranged in the drilled hole and can support the wall of the drilled hole, and the drilled hole is prevented from collapsing; the hole protecting method is simple, convenient to operate, high in efficiency and low in cost.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A retractable reticular hole protecting piece is characterized by comprising a main pipe network and a cone, wherein the main pipe network is of a circular retractable reticular structure;
the plane of cone is connected the main part pipe network, just the diameter of the plane of cone is greater than the external diameter of main part pipe network lie in on the plane of cone the outside of main part pipe network forms the step face.
2. The collapsible mesh guard of claim 1 wherein the material of the main network of tubes is a resin.
3. The collapsible mesh guard according to claim 1 wherein the conical outer surface of the cone is threaded.
4. The collapsible mesh guard of claim 2 wherein the main tubular network is processed using 3D printing.
5. A method of installing a collapsible mesh grommet, the method being adapted to install the collapsible mesh grommet according to any one of claims 1 to 4, wherein an installation member is used in the method, the installation member being a tubular structure and having a pull ring provided at one end thereof, the method comprising:
sleeving the mounting piece on the main body pipe network, wherein one end, far away from the pull ring, of the mounting piece is attached to the step surface, and the pull ring is exposed outside;
inserting the cone into a drill hole, pushing the mounting piece, and completely pushing the main pipe network into the drill hole;
pulling the pull ring outward to pull the mounting member out of the main body pipe network.
6. The method of installing a collapsible mesh guard according to claim 5 wherein the mounting member has an outer diameter less than the diameter of the plane of the cone.
7. The method of installing a collapsible mesh guard according to claim 5, wherein the outer diameter of the host tubular network is slightly larger than the inner diameter of the bore;
the outer diameter of the mounting part is matched with the inner diameter of the drilling hole.
8. The method of installing a collapsible mesh guard according to claim 5 wherein the mounting member is an acrylic tube.
9. The method of installing a collapsible mesh guard according to claim 5 wherein the mounting member is a PVC pipe.
10. A method of hole protection, comprising:
constructing a drill hole in an access stope;
sleeving an installation part on the main pipe network, wherein one end, far away from the pull ring, of the installation part is attached to the step surface, and the pull ring is exposed outside; inserting the cone into the drilled hole, pushing the mounting piece, and completely pushing the main pipe network into the drilled hole; pulling the pull ring outward to pull the mounting member out of the main body pipe network;
and circulating the steps, and completing the installation of one hole protection piece after one drilling hole is constructed until all drilling holes and the installation of the hole protection pieces are completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111447255.9A CN113882806B (en) | 2021-12-01 | 2021-12-01 | Retractable mesh-shaped hole protection piece, installation method of hole protection piece and hole protection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111447255.9A CN113882806B (en) | 2021-12-01 | 2021-12-01 | Retractable mesh-shaped hole protection piece, installation method of hole protection piece and hole protection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113882806A true CN113882806A (en) | 2022-01-04 |
| CN113882806B CN113882806B (en) | 2022-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111447255.9A Active CN113882806B (en) | 2021-12-01 | 2021-12-01 | Retractable mesh-shaped hole protection piece, installation method of hole protection piece and hole protection method |
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| Country | Link |
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| CN (1) | CN113882806B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004332529A (en) * | 2003-04-18 | 2004-11-25 | Atsushi Kato | Drilling method for collapse ground, lock bolt working method, and ground anchor working method |
| JP2007138521A (en) * | 2005-11-17 | 2007-06-07 | Ohbayashi Corp | Hole wall protecting device, hole excavating method using the hole wall protecting device, and hole wall protecting method using the hole wall protecting device |
| CN102966333A (en) * | 2012-11-09 | 2013-03-13 | 北京科技大学 | Anti-blockage method for bottom hole of mine stope and roadway driving working face |
| CN106401487A (en) * | 2016-11-01 | 2017-02-15 | 太原理工大学 | Automatic protection wall elastic net releasing device capable of preventing drilled hole collapse |
| CN108106506A (en) * | 2016-11-24 | 2018-06-01 | 中国矿业大学(北京) | A kind of deep hole blasting essential safe type quick-burning charge device |
| CN110185413A (en) * | 2019-05-27 | 2019-08-30 | 太原理工大学 | A method of stable slip casting channel is formed on easy collapse hole stratum |
| CN110617009A (en) * | 2019-09-16 | 2019-12-27 | 铜仁学院 | High-precision pore-forming and hole-protecting integrated automatic drilling device |
-
2021
- 2021-12-01 CN CN202111447255.9A patent/CN113882806B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004332529A (en) * | 2003-04-18 | 2004-11-25 | Atsushi Kato | Drilling method for collapse ground, lock bolt working method, and ground anchor working method |
| JP2007138521A (en) * | 2005-11-17 | 2007-06-07 | Ohbayashi Corp | Hole wall protecting device, hole excavating method using the hole wall protecting device, and hole wall protecting method using the hole wall protecting device |
| CN102966333A (en) * | 2012-11-09 | 2013-03-13 | 北京科技大学 | Anti-blockage method for bottom hole of mine stope and roadway driving working face |
| CN106401487A (en) * | 2016-11-01 | 2017-02-15 | 太原理工大学 | Automatic protection wall elastic net releasing device capable of preventing drilled hole collapse |
| CN108106506A (en) * | 2016-11-24 | 2018-06-01 | 中国矿业大学(北京) | A kind of deep hole blasting essential safe type quick-burning charge device |
| CN110185413A (en) * | 2019-05-27 | 2019-08-30 | 太原理工大学 | A method of stable slip casting channel is formed on easy collapse hole stratum |
| CN110617009A (en) * | 2019-09-16 | 2019-12-27 | 铜仁学院 | High-precision pore-forming and hole-protecting integrated automatic drilling device |
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| Publication number | Publication date |
|---|---|
| CN113882806B (en) | 2022-03-11 |
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