CN111457808A - Tunnel blasting construction big gun hole blocks up device - Google Patents
Tunnel blasting construction big gun hole blocks up device Download PDFInfo
- Publication number
- CN111457808A CN111457808A CN202010355969.6A CN202010355969A CN111457808A CN 111457808 A CN111457808 A CN 111457808A CN 202010355969 A CN202010355969 A CN 202010355969A CN 111457808 A CN111457808 A CN 111457808A
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- CN
- China
- Prior art keywords
- structural member
- filling
- blast hole
- blasting construction
- tunnel blasting
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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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
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
- F42D1/18—Plugs for boreholes
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention relates to a blast hole blocking device for tunnel blasting construction, and belongs to the technical field of blasting engineering auxiliary devices. The invention comprises a filling structural member and a plurality of movable rods, wherein the movable rods are arranged at intervals along the circumferential direction of the filling structural member, each movable rod is hinged to the same end of the filling structural member through a pivot, and a torsion spring is sleeved on the pivot; when the torsion spring is in a natural state, an included angle formed by the axis of the movable rod and the axis of the filling structural member is less than 90 degrees; when the included angle formed by the axis of the movable rod and the axis of the filling structural member is 90 degrees, the reset elastic force of the torsion spring points to the other end of the filling structural member; the stuffing structural member is provided with a passage for the detonating cord to pass through. The invention has convenient operation and high filling quality assurance.
Description
Technical Field
The invention relates to a blast hole blocking device for tunnel blasting construction, and belongs to the technical field of blasting engineering auxiliary devices.
Background
Drilling blasting is a common technology for tunnel excavation and is widely applied to the fields of water conservancy and hydropower, mines, traffic and the like. In the blasting construction process, the blast hole is plugged, so that the pressure of the detonation gas acting on the hole wall can be increased, the time of the pressure action is prolonged, the spalling degree and the throwing distance of the rock are greatly improved, and the blasting effect is improved. At present, materials are often used locally in engineering, materials such as mud chips and the like are generally adopted as stemming to fill blast holes, operation is inconvenient, and filling quality assurance is poor.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a tunnel blasting construction big gun hole blocks up device, the operation of being convenient for, and it is high to fill the quality assurance nature.
In order to solve the technical problems, the invention adopts the technical scheme that: the blast hole blocking device for tunnel blasting construction comprises a filling structural member and a plurality of movable rods, wherein the movable rods are arranged at intervals along the circumferential direction of the filling structural member, each movable rod is hinged to the same end of the filling structural member through a pivot, and a torsion spring is sleeved on the pivot; when the torsion spring is in a natural state, an included angle formed by the axis of the movable rod and the axis of the filling structural member is less than 90 degrees; when the included angle formed by the axis of the movable rod and the axis of the filling structural member is 90 degrees, the reset elastic force of the torsion spring points to the other end of the filling structural member; the stuffing structural member is provided with a passage for the detonating cord to pass through.
Further, the method comprises the following steps: the number of the movable rods is 4-8; the movable rods are uniformly arranged at intervals along the circumferential direction of the filling structural member.
Further, the method comprises the following steps: the end part of the filling structural member is fixedly connected with a support leg, and the support leg is in T-shaped connection with the filling structural member; the stabilizer blade sets up to many, and with the movable rod one-to-one correspondence, the movable rod sets up in the outer end of stabilizer blade with the pin joint of filling the structure.
Further, the method comprises the following steps: the filling structural member and the support leg are integrally formed plastic pieces.
Further, the method comprises the following steps: the channel for the detonating cord to pass through is the central hole of the stuffing structure.
Correspondingly, on the basis of the device for blocking the blast hole in the tunnel blasting construction, the invention also provides a method for blocking the blast hole in the tunnel blasting construction.
The invention has the beneficial effects that: according to the implementation process, the invention has the advantages of convenient operation and high filling quality assurance.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the overall structure of the present invention;
the labels in the figure are: 1-filling structural member, 11-support leg, 12-through hole, 2-movable rod, 3-torsion spring, 4-detonating cord, 5-blast hole, 6-charging section and 7-pivot.
Detailed Description
For the purpose of promoting an understanding and an enabling description of the invention, reference should be made to the following detailed description of the preferred embodiments taken in conjunction with the accompanying drawings.
As shown in fig. 1 and 2, the device for blocking a blast hole in tunnel blasting construction of the invention comprises a tamping structural member 1 and a plurality of movable rods 2, wherein the plurality of movable rods 2 are arranged at intervals along the circumferential direction of the tamping structural member 1, each movable rod 2 is hinged to the same end of the tamping structural member 1 through a pivot 7, and a torsion spring 3 is sleeved on the pivot 7; when the torsion spring 3 is in a natural state, an included angle formed by the axis of the movable rod 2 and the axis of the filling structural member 1 is smaller than 90 degrees; when the included angle formed by the axis of the movable rod 2 and the axis of the filling structural member 1 is 90 degrees, the reset elastic force of the torsion spring 3 points to the other end of the filling structural member 1 (i.e. the end far away from the hinge point of the movable rod 2 and the filling structural member 1); the caulking structure 1 is provided with a passage through which the explosion wire 4 passes. In implementation, the shape and specification of the filling structural member 1 are matched with the blast hole 5, and the filling structural member is usually circular; the overall length of the filling structural member 1 is designed according to the length requirement of the plugged section of the blast hole 5.
In order to make the structure simple and reliable, the number of the movable rods 2 is 4-8; the movable rods 2 are arranged at even intervals along the circumferential direction of the padded structural part 1.
In order to make the structure more stable and reliable, the end of the filling structural member 1 is fixedly connected with a support leg 11, and the support leg 11 and the filling structural member 1 are in T-shaped connection (namely the support leg 11 is vertical to the axis of the filling structural member 1); the supporting legs 11 are provided in multiple pieces, and correspond to the movable rods 2 one by one, and the hinge points of the movable rods 2 and the padding structure 1 are provided at the outer ends of the supporting legs 11 (i.e. the ends of the supporting legs 11 far away from the padding structure 1). The supporting legs 11 are arranged, so that the movable rod 2 can be conveniently connected on one hand, and the whole installation and positioning of the device can be realized on the other hand.
In order to facilitate the processing and manufacturing and save the cost at the same time, the preferred embodiment is as follows: the packing structure 1 and the support legs 11 are formed as an integral plastic part. This also facilitates the formation of a passage in the padded structural part 1 through which the detonating cord 4 can be passed. In order to facilitate the penetration of the detonating cord 4, the passage for the detonating cord 4 to pass through is a central hole (i.e. a through hole 12 in the figure) of the tamping structural member 1, and the central hole can be integrally formed with the tamping structural member 1 and the support leg 11.
When the blast hole filling device is used for implementation, the diameter of the filling structural member 1 is matched with the diameter of the blast hole 5, and the method comprises the following steps: the device is integrally placed at the blocking position of the blast hole 5, the movable rod 2 is located at the outer side end of the blast hole 5, the detonating cord 4 is led out from a preset channel on the filling structural member 1, then the rear end of the device is pressed forcibly until the movable rod 2 is tightly attached to the outer end face of the blast hole 5, the resetting elasticity of the torsion spring 3 enables the filling structural member 1 to be fixed at the blocking section of the blast hole 5, and the blocking of the blast hole 5 is completed. According to the implementation process, the invention has the advantages of convenient operation and high filling quality assurance.
Claims (6)
1. Tunnel blasting construction big gun hole blocks up device, its characterized in that: the filling structure comprises a filling structure member (1) and a plurality of movable rods (2), wherein the movable rods (2) are arranged at intervals along the circumferential direction of the filling structure member (1), each movable rod (2) is hinged to the same end of the filling structure member (1) through a pivot (7), and a torsion spring (3) is sleeved on the pivot (7); when the torsion spring (3) is in a natural state, an included angle formed by the axis of the movable rod (2) and the axis of the filling structural member (1) is less than 90 degrees; when the included angle formed by the axis of the movable rod (2) and the axis of the filling structural member (1) is 90 degrees, the reset elastic force of the torsion spring (3) points to the other end of the filling structural member (1); the filling structural member (1) is provided with a channel for the detonating cord (4) to pass through.
2. The tunnel blasting construction blasthole plugging device of claim 1, wherein: the number of the movable rods (2) is 4-8; the movable rods (2) are uniformly arranged at intervals along the circumferential direction of the filling structural member (1).
3. The tunnel blasting construction blasthole plugging device of claim 1, wherein: the end part of the filling structural member (1) is fixedly connected with a support leg (11), and the support leg (11) is connected with the filling structural member (1) in a T shape; the supporting legs (11) are arranged into a plurality of pieces and correspond to the movable rods (2) one by one, and the hinge points of the movable rods (2) and the filling structural member (1) are arranged at the outer ends of the supporting legs (11).
4. The tunnel blasting construction blasthole plugging device of claim 3, wherein: the filling structural member (1) and the support leg (11) are integrally formed plastic pieces.
5. A tunnel blasting construction blasthole plugging device according to any one of claims 1 to 4, characterized in that: the channel for the detonating cord (4) to pass through is a central hole of the filling structural part (1).
6. The method for blocking the blast hole in tunnel blasting construction is characterized by comprising the following steps: the device for blocking the blast hole in the tunnel blasting construction is adopted, and the diameter of the tamping structural member (1) is matched with that of the blast hole (5); when the device is plugged, the device is integrally placed at the plugging position of a blast hole (5), the movable rod (2) is located at the outer side end of the blast hole (5), the detonating cord (4) is led out from a preset channel on the plugging structural member (1), then the rear end of the device is pressed with force until the movable rod (2) is tightly attached to the outer end face of the blast hole (5), the resetting elasticity of the torsion spring (3) enables the plugging structural member (1) to be fixed at the plugging section of the blast hole (5), and the plugging of the blast hole (5) is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010355969.6A CN111457808A (en) | 2020-04-29 | 2020-04-29 | Tunnel blasting construction big gun hole blocks up device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010355969.6A CN111457808A (en) | 2020-04-29 | 2020-04-29 | Tunnel blasting construction big gun hole blocks up device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111457808A true CN111457808A (en) | 2020-07-28 |
Family
ID=71682660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010355969.6A Pending CN111457808A (en) | 2020-04-29 | 2020-04-29 | Tunnel blasting construction big gun hole blocks up device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111457808A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112504040A (en) * | 2020-11-30 | 2021-03-16 | 华侨大学 | Rock mass engineering blasting excavation damping device and construction method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1303684A (en) * | 1969-07-11 | 1973-01-17 | ||
| CN1338038A (en) * | 1998-12-14 | 2002-02-27 | 洛克泰克有限公司 | Method and apparatus for charging a hole |
| CN202676052U (en) * | 2012-06-17 | 2013-01-16 | 鞍钢集团矿业公司 | Auxiliary protective device used for mine blast hole packing |
| CN210128664U (en) * | 2019-07-11 | 2020-03-06 | 许明 | Blast hole spaced charging device for blasting engineering |
-
2020
- 2020-04-29 CN CN202010355969.6A patent/CN111457808A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1303684A (en) * | 1969-07-11 | 1973-01-17 | ||
| CN1338038A (en) * | 1998-12-14 | 2002-02-27 | 洛克泰克有限公司 | Method and apparatus for charging a hole |
| CN202676052U (en) * | 2012-06-17 | 2013-01-16 | 鞍钢集团矿业公司 | Auxiliary protective device used for mine blast hole packing |
| CN210128664U (en) * | 2019-07-11 | 2020-03-06 | 许明 | Blast hole spaced charging device for blasting engineering |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112504040A (en) * | 2020-11-30 | 2021-03-16 | 华侨大学 | Rock mass engineering blasting excavation damping device and construction method |
| CN112504040B (en) * | 2020-11-30 | 2023-02-03 | 华侨大学 | Rock mass engineering blasting excavation damping device and construction method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200728 |