CN112797859A - Surface mine goaf roadway cleaning blasting construction method and construction device - Google Patents
Surface mine goaf roadway cleaning blasting construction method and construction device Download PDFInfo
- Publication number
- CN112797859A CN112797859A CN202011628187.1A CN202011628187A CN112797859A CN 112797859 A CN112797859 A CN 112797859A CN 202011628187 A CN202011628187 A CN 202011628187A CN 112797859 A CN112797859 A CN 112797859A
- Authority
- CN
- China
- Prior art keywords
- drill
- hole
- blasting
- teeth
- mesenchymal stem
- Prior art date
- 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.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a construction method and a construction device for clearing and blasting a roadway in a goaf of a surface mine, wherein the construction method comprises the following steps: the device comprises a drill rod, a drill tooth, a mesenchymal stem, a support body and an airtight nozzle; and (7) pressing a plate. The method comprises the following steps: using a drilling machine to form a main blasting hole for the rock mass body; high-pressure air or liquid and other media are filled into the mesenchymal stem through the airtight nozzle, the support body expands to push the drill teeth to slide outwards in the drill tooth telescopic through hole, the drilling machine drives the drill rod to rotate, the drill teeth are propped against the drill rod wall of the drill tooth telescopic through hole to rotate, and the arc groove on the drill teeth constructs the rock block body to achieve the forming of the lateral blasting hole; filling explosives at the bottom of the main blasting hole and in the side blasting holes, and burying the main blasting hole and the side blasting holes by using fillers; firstly, detonating the explosive in the main blast hole, and then detonating the explosive in the side blast hole; when the explosive in the main explosion hole is detonated, the transversely layered rock mass body structure is exploded and broken, the explosive in the back detonation side explosion hole and the longitudinally layered rock mass body structure are exploded and broken, and the problem of uneven explosion of the longitudinally layered structure is solved.
Description
Technical Field
The invention relates to a construction method and a construction device for clearing and blasting a roadway in a goaf of a surface mine, and belongs to the technical field of mine construction.
Background
When the surface mine is excavated and mined, the whole rock block with larger volume and high hardness sometimes exists in a roadway of a mined-out area of the mine, and the rock block is usually blasted first to improve the efficiency of cleaning the rock block; because the holes for embedding the explosive are generally linear holes, the longitudinal layered structure of the outer surface of the rock mass body towards the inside after detonation can not be uniformly cracked, and the later cleaning speed of the rock mass body is reduced.
Disclosure of Invention
In order to solve the technical problems, the invention provides a construction method for clearing and blasting a roadway in a goaf of a surface mine.
The invention also provides a construction device for cleaning and blasting the open mine goaf roadway.
The invention is realized by the following technical scheme.
The invention provides a construction device for clearing and blasting a roadway in a goaf of a surface mine, which comprises: the drill rod is provided with a central hole with an upward opening in the center, and the bottom wall of the drill rod is provided with a drill tooth telescopic through hole communicated with the central hole;
the drill teeth are arranged in the drill tooth telescopic through holes in a sliding manner;
a hollow mesenchymal stem is arranged in the central hole, the bottom of the mesenchymal stem is communicated with a support body which can expand and contract by utilizing the contraction performance of the mesenchymal stem, and the top of the mesenchymal stem is communicated with an airtight nozzle;
the support body is connected with the side of the drill tooth positioned in the central hole;
the periphery of the bottom of the mesenchymal stem is fixed with a pressing plate for preventing the support body from expanding upwards.
The drilling machine is connected with a drill rod end provided with an opening, high-pressure air or liquid and other media are filled into the mesenchymal stem through the airtight nozzle, the support body expands to push the drill teeth to slide outwards in the drill tooth telescopic through hole, the drilling machine drives the drill rod to rotate, the drill teeth are propped against the drill rod wall of the drill tooth telescopic through hole to rotate to construct the rock mass body to achieve the formation of the lateral explosion hole, after the lateral explosion hole is formed, the high-pressure air or liquid and other media in the mesenchymal stem are released through the airtight nozzle, and the support body drives the drill teeth to slide inwards in the drill tooth telescopic through hole to retract into the drill rod under the deformation effect of.
The invention provides a construction method for clearing and blasting a surface mine goaf roadway, which uses the construction device for clearing and blasting the surface mine goaf roadway and comprises the following steps:
firstly, forming a main blasting hole on a rock mass by using a drilling machine;
secondly, a drilling machine is connected with a flange on the drill rod, high-pressure air or liquid and other media are filled into the mesenchymal rod through an airtight nozzle, the support body expands to push the drill teeth to slide outwards in the drill tooth telescopic through holes, the drilling machine drives the drill rod to rotate, the drill teeth are propped against the drill rod wall of the drill tooth telescopic through holes to rotate, and the arc grooves on the drill teeth construct the rock mass body to achieve the molding of the side blasting holes;
then, filling explosives at the bottom of the main blasting hole and in the side blasting holes, and burying the main blasting hole and the side blasting holes by using fillers;
and finally, detonating the explosive in the main blast hole, and detonating the explosive in the side blast hole after finishing the detonation of the main blast hole explosive.
The invention has the beneficial effects that: when detonating the explosive in the main explosion hole, the rock mass body structure of horizontal layering is exploded the fracture, and the explosive in the back detonation side explosion hole, the rock mass body structure of vertical layering is exploded the fracture, has improved the cleaning rate of later stage to the rock mass body, has solved the problem that the vertical layered structure of the pre-buried explosive of sharp hole can't be even by bursting sometimes.
Drawings
FIG. 1 is a schematic view of the rock mass of the present invention after construction;
FIG. 2 is a schematic view of the construction of a rock mass according to the invention;
FIG. 3 is a schematic structural view of the construction apparatus according to the present invention in a construction state;
FIG. 4 is a schematic structural view of the construction apparatus of the present invention in a non-construction state;
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
See fig. 2-4.
The invention provides a construction device for clearing and blasting a roadway in a goaf of a surface mine, which comprises: the drill rod 1 is provided with a central hole 11 with an upward opening in the center, and the bottom wall of the drill rod 1 is provided with a drill tooth telescopic through hole 12 communicated with the central hole 11;
the drill teeth 2 which can slide are arranged in the drill tooth telescopic through hole 12;
a hollow mesenchymal stem 3 is arranged in the central hole 11, the bottom of the mesenchymal stem 3 is communicated with a support body 4 which can expand and contract by utilizing the contraction performance of the mesenchymal stem 3, and the top of the mesenchymal stem 3 is communicated with an airtight nozzle 5;
the support body 4 is connected with the side of the drill tooth 2 positioned in the central hole 11;
the periphery of the bottom of the mesenchymal stem 3 is fixed with a pressing plate 6 for preventing the support body 4 from expanding upwards.
The working principle is as follows: the drilling machine is connected with the end of a drill rod 1 provided with an opening, high-pressure air or liquid and other media are filled into the mesenchymal stem 3 through the airtight nozzle 5, the support body 4 expands to push the drill teeth 2 to slide outwards in the drill tooth telescopic through hole 12, the drilling machine drives the drill rod 1 to rotate, the drill teeth 2 are propped against the wall of the drill rod 1 of the drill tooth telescopic through hole 12 to rotate to construct the rock block body 51 to achieve the forming of the lateral explosion hole 53, after the forming is completed, the high-pressure air or liquid and other media in the mesenchymal stem 3 are released through the airtight nozzle 5, and the support body 4 drives the drill teeth 2 to slide inwards in the drill tooth telescopic through hole 12 to retract into the drill rod 1 under the deformation.
The support body 4 is made of spring rubber, and is internally filled with high-pressure air or liquid and other media to expand and release the high-pressure air or liquid and other media to elastically retract.
Be equipped with the open-ended one end on the drilling rod 1 and be fixed with flange 7, the drilling machine is convenient for be connected with drilling rod 1 through flange 7 and is pushed down mesenchymal stem 3.
The drill teeth 2 and the drill tooth telescopic through holes 12 are even numbers, the two drill teeth 2 are symmetrically and slidably distributed in the drill tooth telescopic through holes 12, and when the two drill teeth 2 are symmetrically stressed during the rotation construction of the opposite-side blast hole 53, the two drill teeth 2 are oppositely offset on the support body 4.
The pressing plate 6 is welded and fixed on the periphery of the bottom of the mesenchymal stem 3.
The support body 4 is fixedly connected with the drill tooth 2 in a bonding way.
The radial outer peripheral surface of the drill tooth 2 is provided with a plurality of arc grooves 21, so that the cutting and grinding speed of the rock mass body 51 is increased, and the construction efficiency is improved.
The drill rod 1 is cylindrical outside, and the side blasting holes 53 are prevented from being damaged due to the fact that diamond edges are in contact with the hole wall of the main blasting hole 52 and collapse.
The contact surface of the drill teeth 2 and the support body 4 is an arc surface, so that the contact area of the support body 4 and the drill teeth 2 is increased, and the strength of the support body 4 on the drill teeth 2 is increased.
The invention provides a construction method for clearing and blasting a surface mine goaf roadway, which uses the construction device for clearing and blasting the surface mine goaf roadway and comprises the following steps:
firstly, a drill rig is used for forming a main blast hole 52 on a rock mass body 51;
secondly, a drilling machine is connected with a flange 7 on the drill rod 1, high-pressure air or liquid and other media are filled into the mesenchymal stem 3 through an airtight nozzle 5, the support body 4 expands to push the drill teeth 2 to slide outwards in the drill tooth telescopic through holes 12, the drilling machine drives the drill rod 1 to rotate, the drill teeth 2 are propped against the wall of the drill rod 1 of the drill tooth telescopic through holes 12 to rotate, and the arc grooves 21 on the drill teeth 2 construct the rock mass body 51 to achieve the forming of side blasting holes 53;
then, filling explosive at the bottom of the main blasting hole 52 and in the side blasting hole 53, and filling the main blasting hole 52 and the side blasting hole 53 by using filler;
finally, the explosive in the main blasting hole 52 is detonated, and the explosive in the side blasting hole 53 is detonated after the detonation of the explosive in the main blasting hole 52 is completed.
When detonating the explosive in the main explosion hole 52, the rock mass body 51 structure of horizontal layering is exploded the fracture, and the explosive in the back detonation side explosion hole 53, the rock mass body 51 structure of vertical layering is exploded the fracture, has improved the clearance speed of later stage to the rock mass body, has solved the problem that the vertical layered structure of the pre-buried explosive of sharp hole can't be even at some times cracked.
Claims (10)
1. A construction method for clearing and blasting a gob roadway of a surface mine uses a construction device for clearing and blasting the gob roadway of the surface mine, and comprises the following steps:
firstly, a drill is used for forming a main blast hole (52) on a rock block body (51);
secondly, a drilling machine is connected with a flange (7) on the drill rod (1), high-pressure air or liquid and other media are filled into the mesenchymal stem (3) through an airtight nozzle (5), a support body (4) expands to push the drill teeth (2) to slide outwards in the drill tooth telescopic through holes (12), the drilling machine drives the drill rod (1) to rotate, the drill teeth (2) are propped against the wall of the drill rod (1) of the drill tooth telescopic through holes (12) to rotate, and arc grooves (21) on the drill teeth (2) construct the rock mass body (51) to achieve the forming of side blasting holes (53);
then, filling explosive at the bottom of the main explosion hole (52) and in the side explosion hole (53), and filling the main explosion hole (52) and the side explosion hole (53) with the filler;
finally, the explosive in the main blasting hole (52) is initiated firstly, and the explosive in the side blasting hole (53) is initiated secondly.
2. The apparatus of claim 1, further comprising: the drill rod (1), the center of the drill rod (1) is provided with a center hole (11) with an upward opening, and the bottom wall of the drill rod (1) is provided with a drill tooth telescopic through hole (12) communicated with the center hole (11);
the drill teeth (2) which can slide are arranged in the drill tooth telescopic through hole (12);
a hollow mesenchymal stem (3) is arranged in the central hole (11), the bottom of the mesenchymal stem (3) is communicated with a support body (4) which can expand and contract by utilizing the contraction performance of the mesenchymal stem, and the top of the mesenchymal stem (3) is communicated with an airtight nozzle (5);
the support body (4) is connected with the side of the drill tooth (2) positioned in the central hole (11);
a pressing plate (6) for preventing the support body (4) from expanding upwards is fixed on the periphery of the bottom of the mesenchymal stem (3).
3. The construction equipment for strip mine goaf roadway cleaning blasting according to claim 2, characterized in that: and a flange (7) is fixed at one end of the drill rod (1) provided with an opening.
4. The construction equipment for strip mine goaf roadway cleaning blasting according to claim 2, characterized in that: the drill teeth (2) and the drill tooth telescopic through holes (12) are even numbers, and the two drill teeth (2) are symmetrically and slidably distributed in the drill tooth telescopic through holes (12).
5. The construction equipment for strip mine goaf roadway cleaning blasting according to claim 2, characterized in that: the pressing plate (6) is welded and fixed on the periphery of the bottom of the mesenchymal stem (3).
6. The construction equipment for strip mine goaf roadway cleaning blasting according to claim 2, characterized in that: the support body (4) is fixedly connected with the drill teeth (2) in a bonding manner.
7. The construction equipment for strip mine goaf roadway cleaning blasting according to claim 2, characterized in that: the radial outer peripheral surface of the drill teeth (2) is provided with a plurality of arc grooves (21).
8. The construction equipment for strip mine goaf roadway cleaning blasting according to claim 2, characterized in that: the drill rod (1) is cylindrical outside.
9. The construction equipment for strip mine goaf roadway cleaning blasting according to claim 2, characterized in that: the surface of the drill teeth (2) in contact with the support body (4) is an arc surface which improves the contact area.
10. The construction equipment for strip mine goaf roadway cleaning blasting according to claim 2, characterized in that: the supporting body (4) is made of spring rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011628187.1A CN112797859B (en) | 2020-12-30 | 2020-12-30 | Surface mine goaf roadway cleaning blasting construction method and construction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011628187.1A CN112797859B (en) | 2020-12-30 | 2020-12-30 | Surface mine goaf roadway cleaning blasting construction method and construction device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112797859A true CN112797859A (en) | 2021-05-14 |
| CN112797859B CN112797859B (en) | 2022-08-26 |
Family
ID=75807951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011628187.1A Active CN112797859B (en) | 2020-12-30 | 2020-12-30 | Surface mine goaf roadway cleaning blasting construction method and construction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112797859B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4549615A (en) * | 1982-07-12 | 1985-10-29 | Kennametal Inc. | Single-pass notching and drilling tool and method of drilling a blast role therewith |
| CN104196455A (en) * | 2014-08-29 | 2014-12-10 | 河南理工大学 | Anchoring hole bottom single-wing hole broadening method |
| CN106703805A (en) * | 2016-12-02 | 2017-05-24 | 中国矿业大学 | Drilling up rock drilling all-in-one machine based on high pressure froth medium |
| CN106837179A (en) * | 2017-03-30 | 2017-06-13 | 河南理工大学 | Soft and broken seam bore expanded hole device |
| CN107677167A (en) * | 2017-10-23 | 2018-02-09 | 山东建筑大学 | Can explosion reaming and the soft stratum prestress anchoraging device and technique filled automatically |
| CN110043187A (en) * | 2019-05-16 | 2019-07-23 | 北京中岩大地科技股份有限公司 | The fluid pressure type reducing reaming bit and filling pile construction engineering method of long-spiral drilling machine |
-
2020
- 2020-12-30 CN CN202011628187.1A patent/CN112797859B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4549615A (en) * | 1982-07-12 | 1985-10-29 | Kennametal Inc. | Single-pass notching and drilling tool and method of drilling a blast role therewith |
| CN104196455A (en) * | 2014-08-29 | 2014-12-10 | 河南理工大学 | Anchoring hole bottom single-wing hole broadening method |
| CN106703805A (en) * | 2016-12-02 | 2017-05-24 | 中国矿业大学 | Drilling up rock drilling all-in-one machine based on high pressure froth medium |
| CN106837179A (en) * | 2017-03-30 | 2017-06-13 | 河南理工大学 | Soft and broken seam bore expanded hole device |
| CN107677167A (en) * | 2017-10-23 | 2018-02-09 | 山东建筑大学 | Can explosion reaming and the soft stratum prestress anchoraging device and technique filled automatically |
| CN110043187A (en) * | 2019-05-16 | 2019-07-23 | 北京中岩大地科技股份有限公司 | The fluid pressure type reducing reaming bit and filling pile construction engineering method of long-spiral drilling machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112797859B (en) | 2022-08-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109779633B (en) | Hydraulic directional fracturing weakening method for hard roof of coal mine | |
| AP1053A (en) | Method for controlled fragmentation of hard rock and concrete by the combination use of impact hammers and small charge blasting. | |
| CN103867166B (en) | Device and method for supercritical carbon dioxide high-pressure jet flow plug removal seepage enhancement | |
| CN108590688B (en) | A kind of TBM development machine and its tunneling construction method with hydraulic drill rig | |
| CN103234403A (en) | Static blasting construction method for highway tunnel | |
| AU769412B2 (en) | Controlled foam injection method and means for fragmentation of hard compact rock and concrete | |
| CN104596375A (en) | Fully mechanized excavation construction method for rock roadway | |
| CN110630181A (en) | Coal seam reaming and permeability increasing method utilizing pneumatic coupling effect | |
| CN103968721A (en) | Hole bottom energy gathering and dissipating device suitable for inclined blast hole and capable of improving blasting excavation flatness of foundation surface | |
| CN106246184A (en) | A kind of recovery method of half-edge coal seam | |
| CN115653558A (en) | Energy storage type shot perforating fracturing device and method thereof | |
| CN106121644B (en) | The water-filling pressure-bearing unloading pressure by blasting of cellular structure and supporting reinforcement are crosslinked based on drilling in coal and rock plane | |
| CN204572026U (en) | A kind of Multifunctional anchor rod device | |
| CN102619496B (en) | Method for layering, stage multi-level blasting, hole expanding and crack expanding of oil-gas-bearing rock | |
| CN112797859B (en) | Surface mine goaf roadway cleaning blasting construction method and construction device | |
| CN111911164B (en) | Environment-friendly hard rock mass groove excavation method | |
| CN101994493B (en) | Compound perforation dynamic depressurization device for oil gas well | |
| CN110644992A (en) | Orientable flexible rock breaking device and method | |
| CN114320309B (en) | Protection mechanism for tunnel construction | |
| NO762410L (en) | ||
| US4394051A (en) | Method of hydrospalling | |
| CN114704282A (en) | Rock breaking integrated machine and rock breaking method | |
| CN114033452A (en) | Coal face supporting system | |
| CN107726935B (en) | Pile foundation construction method for large-angle inclined plane hard rock stratum | |
| CN108731560B (en) | Blasting structure of high-efficient blasting unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |