CN107367207B - Joint-cutting explosive package and axial uncoupled explosive-loading step deep hole smooth blasting device - Google Patents
Joint-cutting explosive package and axial uncoupled explosive-loading step deep hole smooth blasting device Download PDFInfo
- Publication number
- CN107367207B CN107367207B CN201710725539.7A CN201710725539A CN107367207B CN 107367207 B CN107367207 B CN 107367207B CN 201710725539 A CN201710725539 A CN 201710725539A CN 107367207 B CN107367207 B CN 107367207B
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- tube
- explosive
- blasting
- charging
- tray
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- 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
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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
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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
- F42D1/04—Arrangements for ignition
-
- 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
Abstract
The invention relates to a deep hole smooth blasting device of a joint loading step, which comprises a plurality of loading tube standard sections, wherein the tube orifices of the loading tube standard sections are sequentially connected to form a blasting tube, a tray for supporting explosive is arranged at the joint of the adjacent loading tube standard sections, a base is arranged at one end of the blasting tube, a top cover is arranged at the other end of the blasting tube, a through hole for a detonating cord to pass through is arranged on the tray surface of the tray, the detonating cord sequentially passes through the through hole on the tray upwards from the base and is led out from the through hole formed in the top cover of the blasting tube, and a crack is also arranged on the tray.
Description
Technical Field
The invention relates to the technical field of blasting charging devices, in particular to a combined charging step deep hole smooth blasting device with a lancing cartridge and an axial uncoupled charging step.
Background
With the progress of drilling machines and the increase of the force of excavating soil Dan Fangneng by excavating machines, step blasting has advanced toward deep hole smooth blasting. Due to uncertainty of geological conditions, complicated geological structures such as faults, joints, karst cave and the like can be encountered in the step deep hole blasting pore-forming process, and emergency situations of multiple medicine filling and medicine loss exist in the medicine filling process. Groundwater and rain weather may be encountered in the process of drilling and forming holes, so that accumulated water exists at the bottom of the blast hole, but the accumulated water is difficult to clean due to the depth of the holes, the blasting effect and blasting quality of the explosive are affected, and potential safety hazards are also easily caused. After the loading structure mode, the explosive is mainly placed in a plastic long tube in the field application explosive package processing mode, and then a detonating cord is inserted into the tube for detonation.
After the explosive package of the kerf explodes, because of being limited by the explosive package shell, the explosion energy is released from the kerf preferentially, and the rock medium at the kerf is acted on preferentially to generate cracks, so that the cracking direction of the rock mass is controlled, the damage of the rock mass to be reserved is reduced, the conventional explosive package of the kerf mostly adopts the kerf processing to the tubular explosive package structure, the processing precision is higher, and the operation on the construction site is difficult.
The axial uncoupled charge is an effective charge structure commonly adopted in the prior step smooth blasting, and the reserved air cushion layer reduces the pressure of shock waves and explosive gas, reduces the impact compression damage to the rock on the hole wall, prolongs the existing time of the explosive gas in the blast hole, and improves the quality of cracks of the smooth blasting of the rock under the action of the quasi-static pressure of the explosive gas. However, at present, explosive and detonating cord are generally bound on a bamboo chip to be made into a string, then the string is placed into a drill hole, a plurality of site operators are required to participate in binding in the implementation process, the charging time is long, the bamboo chip and the detonating cord are easy to kink in the charging process, and the danger in the operation process is high.
Disclosure of Invention
The invention aims to provide a joint-cutting explosive package and axial uncoupled combined charging step deep hole smooth blasting device, which can improve the effective utilization rate of explosive, weaken the influence of complex geological environment of rock mass on charging, prevent the premature overflow of blasting gas, improve the safety and crushing effect, control the blasting vibration hazard and reduce the construction and excavation cost.
In order to achieve the above purpose, the invention adopts the technical scheme that:
the utility model provides a joint loading step deep hole plain noodles blast device is united with axial to lancing cartridge bag, the device includes a plurality of loading pipe standard festival, connect in proper order between the mouth of pipe of loading pipe standard festival and constitute the blasting pipe, the junction of adjacent loading pipe standard festival is provided with the tray that props up the explosive, the one end of blasting pipe is provided with the base, the other end of blasting pipe is provided with the top cap, be provided with the through-hole that the detonating cord passed on the quotation of tray, the detonating cord upwards passes the through-hole on the tray in proper order by the base and draws forth by the through-hole that the top cap of blasting pipe was seted up, still be provided with the crack on the tray.
The invention is also characterized in that:
the cracks are arranged along the radial direction of the tray, and the standard section of the medicine filling pipe is provided with openings which are arranged along the length direction of the standard section of the medicine filling pipe.
The base is provided with an inverted U-shaped ring, and the detonating cord is connected with the inverted U-shaped ring.
The pipe ends of the standard charging pipe sections are connected into a whole through threads, and the base and the pipe ends of the standard charging pipe sections are connected into a whole through threads.
The charging tube standard section and the inverted U-shaped ring are made of antistatic plastic materials.
And an antistatic plastic film is encapsulated in the opening.
Compared with the prior art, the invention has the following technical effects: the invention has simple structure, practicality and convenience, reduces the number of operators, improves the charging efficiency, fully combines the advantages of lancing explosive package blasting and axial uncoupled blasting, improves the breaking degree of rock in the explosive filling section, reduces the using amount of explosive, reduces the damage to reserved rock mass, improves the effective utilization rate of the explosive, weakens the influence of complex geological environment on charging, prevents the premature overflow of blasting gas, improves the safety and breaking effect, simultaneously controls the blasting vibration hazard, and reduces the construction and excavation cost.
Drawings
FIG. 1 is a schematic structural view of a lancing cartridge and an axially uncoupled combined loading step deep hole smooth blasting cartridge;
FIG. 2 is a cross-sectional view of a lancing cartridge and an axially uncoupled combined loading step deep hole smooth blast;
FIG. 3 is a standard section cross-sectional view of a charge tube in a kerf charge and axial uncoupled combined charge step deep hole smooth blasting charge;
FIG. 4 is a schematic diagram of the end face structure of a tray in a combined loading step deep hole smooth blasting cartridge with a lancing cartridge and an axial uncoupled loading step;
fig. 5 is a schematic structural view of a base in a combined loading step deep hole smooth blasting cartridge with a lancing cartridge and an axial uncoupled loading step deep hole smooth blasting cartridge.
Detailed Description
The invention is further described with reference to fig. 1 to 5:
the device comprises a plurality of explosive tube standard sections 30, wherein the tube orifices of the explosive tube standard sections 30 are sequentially connected to form an explosive tube, a tray 40 for supporting explosive is arranged at the joint of each adjacent explosive tube standard section 30, one end of the explosive tube is provided with a base 50, the other end of the explosive tube is provided with a top cover 80, the tray surface of the tray 40 is provided with a through hole 41 through which an detonating cord 60 passes, the detonating cord 60 sequentially passes through the through hole 41 on the tray 40 from the base 50 upwards and is led out from the through hole formed by the top cover 80 of the explosive tube, and the tray 40 is also provided with a crack 42;
as shown in fig. 1 and fig. 2, the belt Kong Dinggai is provided with an internal thread and is externally connected with the standard section 30 of the topmost charging tube, the other end of the detonating cord 60 passes through the through holes 41 of the tray 40 in the standard section 30 of all charging tubes, and has enough residual length, the direction of the lancing and the direction of the connecting line of the blastholes before the rock mass is reserved are consistent, the blastholes are plugged and blocked, the detonating cord 60 is connected into a blasting network, and the detonation is waited to be excited;
the trays 40 are arranged between the standard charge pipe sections 30, so that under the condition that the blasting ropes 60 are detonated, the explosive above the trays 40 in the standard charge pipe sections 30 can be synchronously exploded, and the cracks 42 are arranged on the trays 40, so that the standard charge pipe sections 30 are in an air conduction state;
according to different charging densities, the charging amounts in the standard sections 30 of the charging pipes are different, in the same standard section, due to the existence of the charging sections and the air sections, in the explosion process, the energy distribution generated at the instant of explosion in the standard sections 30 of the charging pipes is different, the explosion gas pressure is different, and the damage degree to rock mass is also different;
the blasting device with the structure can effectively reduce the shock wave and the explosive gas pressure of the charging section in the hole, reduce the excessive impact compression damage to the rock on the hole wall, and prolong the existing time of the explosive gas in the blast hole due to the restraint effect of the charging pipe standard section 30, thereby effectively improving the energy utilization rate of explosive explosion.
As a preferred embodiment of the present invention, as shown in fig. 4, the slit 42 is arranged along the radial direction of the tray 40, the standard charge tube section 30 is provided with an opening 31, and the opening 31 is arranged along the length direction of the standard charge tube section 30;
the width of the crack 42 is smaller, so as to prevent explosive particles from falling, the design of the crack 42 is convenient for air flow, when the explosive is detonated, the energy generated by explosion of the explosive is released from the opening 31 on the standard section 30 of the charging tube preferentially, so that the energy generated by explosion of the explosive preferentially acts on the wall rock mass at the opening 31, the wall rock mass generates cracks, and the impact compression damage of the wall rock outside the opening 31 of the standard section 30 of the charging tube can be effectively reduced due to the constraint effect of the standard section 30 of the charging tube on the explosion energy, so that the blasting effect of an optical surface layer is improved.
Further, an inverted U-shaped ring 51 is provided on the base 50, the detonating cord 60 is connected with the inverted U-shaped ring 51, the tube ends of the standard charging tube sections 30 are connected into a whole through threads, and the base 50 is connected with the tube ends of the standard charging tube sections 30 into a whole through threads;
the base 50 can be provided with external threads, and the pipe ends of the charging pipe standard section 30 are provided with internal threads, so that the mounting between the base 50 and the pipe ends of the charging pipe standard section 30 is facilitated, the charging pipe standard section 30 has certain strength and is waterproof, and the detonating cord 60 is connected with the inverted U-shaped ring 51 on the base 50, so that the detonating cord 60 is fixed.
The charging tube standard knot 30 and the inverted U-shaped ring 51 are made of antistatic plastic materials; the diameter of the standard section 30 of the charging tube is slightly smaller than the diameter of the blast hole, and the length is generally 1-2 meters, so that the charging tube is convenient to process, shape and transport.
An antistatic plastic film is encapsulated in the opening 31; on the one hand, the explosive is prevented from leaking out, on the other hand, water in the blast hole is prevented from entering the standard section 30 of the charging tube, the blasting effect is affected, and the strength is lower than the material of the standard section of the charging tube.
The operation method of the joint-cutting explosive package and axial uncoupled combined explosive-loading step deep hole smooth blasting device comprises the following steps:
1) The metal protection head of the detonating cord 60 is removed, penetrates from the upper part of the charging tube standard section 30, is bound with the inverted U-shaped ring 51 of the base 50 through the through hole 41 of the tray 40, and is screwed with the lower part of the charging tube standard section 30.
2) And the explosive is charged according to the explosive amount used for determining the charge density of the blasthole line designed by the step deep hole smooth blasting, and the explosive is filled into the standard section 30 of the explosive tube from the upper part of the standard section 30 of the explosive tube penetrating out of the detonating cord 60, so that the explosive amount designed by the line is achieved. The explosive loading pipe standard section 30 is placed into a blast hole, the detonating cord 60 is continuously penetrated from the lower part of the other explosive loading pipe standard section 30, the explosive loading pipe standard section 30 is penetrated out through the through hole 41 of the tray 40, the explosive loading pipe standard section 30 is tightly connected through threads, explosive loading is continuously carried out according to the linear density of the blast hole, and the sections are spliced and placed into the blast hole until the explosive loading design height is reached.
3) The detonating cord 30 passes through the belt Kong Dinggai, the belt Kong Dinggai is tightly connected with the standard section 30 of the charging tube through threads to form a complete device, the complete device is placed into a blast hole, the detonating cord 60 is left with enough residual length, the direction of a lancing explosive package is consistent with the direction of a blast hole connecting line before a rock mass is reserved, the blast hole is plugged and plugged, the detonating cord 60 is connected into a blasting network, and the explosive is waited to be excited and detonated.
The invention has simple structure, practicality and convenience, reduces the number of operators, improves the charging efficiency, fully combines the advantages of lancing explosive package blasting and axial uncoupled blasting, improves the breaking degree of rock in the explosive filling section, reduces the using amount of explosive, reduces the damage to reserved rock mass, improves the effective utilization rate of the explosive, weakens the influence of complex geological environment on charging, prevents the premature overflow of blasting gas, improves the safety and breaking effect, simultaneously controls the blasting vibration hazard, and reduces the construction and excavation cost.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same, and those skilled in the art will understand that although the present invention has been described in detail with reference to the foregoing embodiments: the technical solutions described in the foregoing embodiments may be modified or some technical features may be replaced with other technical solutions, which may not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (3)
1. The utility model provides a joint powder charge step deep hole plain noodles blasting device is united with axial uncoupling to lancing cartridge bag which characterized in that: the device comprises a plurality of charging tube standard sections (30), wherein the tube orifices of the charging tube standard sections (30) are sequentially connected to form a blasting tube, a tray (40) for supporting explosive is arranged at the joint of each adjacent charging tube standard section (30), a base (50) is arranged at one end of the blasting tube, a top cover (80) is arranged at the other end of the blasting tube, a through hole (41) through which a detonating cord (60) passes is arranged on the disc surface of the tray (40), the detonating cord (60) sequentially passes through the through hole (41) on the tray (40) upwards from the base (50) and is led out from the through hole formed by the top cover (80) of the blasting tube, and a crack (42) is further arranged on the tray (40);
the crack (42) is arranged along the radial direction of the tray (40), an opening (31) is formed in the standard medicine filling pipe section (30), the opening (31) is arranged along the length direction of the standard medicine filling pipe section (30), and an antistatic plastic film is packaged in the opening (31); the base (50) is provided with an inverted U-shaped ring (51), and the detonating cord (60) is connected with the inverted U-shaped ring (51).
2. The joint-cutting explosive package and axial-uncoupled combined-charging step deep hole smooth blasting device according to claim 1, wherein: the pipe ends of the charging pipe standard sections (30) are connected into a whole through threads, and the base (50) and the pipe ends of the charging pipe standard sections (30) are connected into a whole through threads.
3. The joint-cutting explosive package and axial-uncoupled combined-charging step deep hole smooth blasting device according to claim 1, wherein: the charging tube standard knot (30) and the inverted U-shaped ring (51) are made of antistatic plastic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710725539.7A CN107367207B (en) | 2017-08-22 | 2017-08-22 | Joint-cutting explosive package and axial uncoupled explosive-loading step deep hole smooth blasting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710725539.7A CN107367207B (en) | 2017-08-22 | 2017-08-22 | Joint-cutting explosive package and axial uncoupled explosive-loading step deep hole smooth blasting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107367207A CN107367207A (en) | 2017-11-21 |
| CN107367207B true CN107367207B (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710725539.7A Active CN107367207B (en) | 2017-08-22 | 2017-08-22 | Joint-cutting explosive package and axial uncoupled explosive-loading step deep hole smooth blasting device |
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| CN (1) | CN107367207B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109520384B (en) * | 2018-12-28 | 2024-02-06 | 北部湾大学 | Underwater lancing explosive package blasting device based on axial uncoupling and construction method thereof |
| CN111023928A (en) * | 2019-12-10 | 2020-04-17 | 北京科技大学 | Method for improving ore dropping efficiency without bottom pillar |
| CN115218733B (en) * | 2022-06-02 | 2023-08-11 | 青岛理工大学 | Deep hole blasting device and application method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202274827U (en) * | 2011-07-05 | 2012-06-13 | 中铁隧道集团有限公司 | Brine coupling kerf pipe loading structure applied to smooth blasting |
| KR101384820B1 (en) * | 2013-12-24 | 2014-04-15 | 이진성 | Tube charged of explosives powder with air gap and method of constructing method for blasting bedrock using that |
| CN204718510U (en) * | 2015-05-27 | 2015-10-21 | 中交一公局厦门工程有限公司 | A kind of novel joint-cutting quick-burning charge monoblock type photoface exploision device |
| CN207095430U (en) * | 2017-08-22 | 2018-03-13 | 安徽理工大学 | Segment algorithm is not with axially coupling joint powder charge step Deep-hole Smooth Blasting device |
-
2017
- 2017-08-22 CN CN201710725539.7A patent/CN107367207B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202274827U (en) * | 2011-07-05 | 2012-06-13 | 中铁隧道集团有限公司 | Brine coupling kerf pipe loading structure applied to smooth blasting |
| KR101384820B1 (en) * | 2013-12-24 | 2014-04-15 | 이진성 | Tube charged of explosives powder with air gap and method of constructing method for blasting bedrock using that |
| CN204718510U (en) * | 2015-05-27 | 2015-10-21 | 中交一公局厦门工程有限公司 | A kind of novel joint-cutting quick-burning charge monoblock type photoface exploision device |
| CN207095430U (en) * | 2017-08-22 | 2018-03-13 | 安徽理工大学 | Segment algorithm is not with axially coupling joint powder charge step Deep-hole Smooth Blasting device |
Non-Patent Citations (1)
| Title |
|---|
| 李显寅 ; 冯德润 ; .切缝药包爆破技术在露天边坡开挖中的应用.现代矿业.2010,(09),全文. * |
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| CN107367207A (en) | 2017-11-21 |
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