CN201083471Y - Retaining wall controlled blasting explosive bag structure - Google Patents
Retaining wall controlled blasting explosive bag structure Download PDFInfo
- Publication number
- CN201083471Y CN201083471Y CNU2007200814429U CN200720081442U CN201083471Y CN 201083471 Y CN201083471 Y CN 201083471Y CN U2007200814429 U CNU2007200814429 U CN U2007200814429U CN 200720081442 U CN200720081442 U CN 200720081442U CN 201083471 Y CN201083471 Y CN 201083471Y
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- China
- Prior art keywords
- retaining wall
- detonation wave
- wave barrier
- barrier layer
- controlled blasting
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Abstract
The utility model relates to a blasting cartridge structure used for controlled blasting of a breast wall, comprising explosives (3) which are packed into a forming blasting cartridge packing layer (2). The utility model is characterized in that: a layer of detonation wave barrier layer (1) or a plurality of layers of detonation wave barrier layers (1) are also arranged outside the forming blasting cartridge packing layer (2). The detonation wave barrier layer (1) is a cylindrical guide tube, and grooves are symmetrically arranged and connecting pieces (4) are arranged on the sidewall of the cylindrical guide tube; concave wedge-shaped grooves are arranged on the sidewall of the forming blasting cartridge packing layer (2) which is positioned on the grooves on the sidewall of the cylindrical guide tube; alternatively, the detonation wave barrier layer (1) is an arc-shaped groove plate which is connected with the forming blasting cartridge packing layer (2) through the connecting pieces (4).
Description
One, technical field
The utility model relates to a kind of controlled blasting technical scheme, is specially a kind of retaining wall controlled blasting charge structure.
Two, background technology
For controlled blasting places such as stone mining cutting explosion, tunnel piercing photoface exploision and rock slope presplit blastings, require the explosion crackle to press predetermined direction starting and expansion, the hole wall rock of all the other directions is as far as possible excellent, makes that the excavation face is smooth, brilliance, nothing " internal injury ".How could make blasting crack when predetermined direction forms, the rock of reserve part be excellent, and this is the subject matter of Directional Fracture Controlled Blasting research.For this reason, people had once proposed breaking controlled blasting technology such as the explosion of grooving hole, the explosion of cumulative cartridge bag and the explosion of joint-cutting cartridge bag.Explosion of grooving hole and the explosion of cumulative cartridge bag all are by changing big gun hole or cartridge bag shape, make hole wall produce stress at predetermined direction and concentrate and form directed crack, and rely on directed crack to form the crack that later side-discharging is used for suppressing other direction.But if the coefficient of coup is less slightly greatly or not for this class blasting method explosive payload, and hole wall is when existing primary or secondary crackle, may also have little time abundant expansion in directed crack, before side direction did not unload as yet, random crack formed, thereby produced the explosion damage.
Three, summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, designs the respond well retaining wall controlled blasting charge structure of a kind of retaining wall.
Basic ideas of the present utility model are: be provided with one deck or multilayer detonation wave barrier layer in the outside of the blasting charge that is packaged with moulding cartridge bag wrapper, and can be made into one-sided retaining wall controlled blasting, the controlled blasting of bilateral retaining wall, the conduit retaining wall controlled blasting charge structure of band one deck or multilayer detonation wave barrier layer as required.
The utility model specifically can pass through following scheme implementation:
A kind of retaining wall controlled blasting charge structure comprises the explosive (3) that is packaged in the moulding cartridge bag wrapper (2), it is characterized in that: also be provided with one deck or multilayer detonation wave barrier layer (1) in moulding cartridge bag wrapper (2) outside.
Further scheme is: described detonation wave barrier layer (1) is cylindric conduit, and on cylindric duct wall, have groove symmetrically and leave connector (4), moulding cartridge bag wrapper (2) sidewall that is positioned at the groove place on the cylindric duct wall is provided with wedge shape (V-arrangement or the U-shaped etc.) groove that inwardly concaves, and promptly cartridge bag inwardly concaves.
Further scheme is: described detonation wave barrier layer (1) is circular-arc frid, and circular-arc frid is connected with moulding cartridge bag wrapper (2) by connector (4).Connector described here (4) generally can be a binding strap.The circular-arc frid that adopts in the practice is generally semicircle frid.
The utility model advantage compared with prior art is, after adopting this retaining wall controlled blasting with charge structure, the blasting impact ripple at first acts on the detonation wave barrier layer, make to remake after the stress wave attentuation and be used for the hole wall rock mass, make the accurate static pressure reduction of explosion gas and stop gases at high pressure to clamp-on primary or secondary hole wall crackle and produce the air gap effect, thereby play good retaining wall effect.And in predetermined surface of rupture direction, owing to do not have detonation wave barrier layer, explosion energy to concentrate on this, produce shear stress effect and tension to concentrate, help the formation and development in crack.
Four, description of drawings
Fig. 1 is the B1-B1 cutaway view of Fig. 3 of the utility model embodiment 1.
Fig. 2 is the C1-C1 cutaway view of Fig. 3.
Fig. 3 is the cross-sectional view (the A1-A1 cutaway view of Fig. 1) of the utility model embodiment 1.
Fig. 4 is the B2-B2 cutaway view of Fig. 6 of the utility model embodiment 2.
Fig. 5 is the C2-C2 cutaway view of Fig. 6.
Fig. 6 is the cross-sectional view (the A2-A2 cutaway view of Fig. 4) of the utility model embodiment 2.
Fig. 7 is the B3-B3 cutaway view of Fig. 9 of the utility model embodiment 3.
Fig. 8 is the C3-C3 cutaway view of Fig. 9.
Fig. 9 is the cross-sectional view (the A3-A3 cutaway view of Fig. 7) of the utility model embodiment 3.
Figure 10 is the B4-B4 cutaway view of Figure 12 of the utility model embodiment 4.
Figure 11 is the C4-C4 cutaway view of Figure 12.
Figure 12 is the cross-sectional view (the A4-A4 cutaway view of Figure 10) of the utility model embodiment 4.
Among the figure: 1-detonation wave barrier layer, 2-moulding cartridge bag wrapper, 3-explosive, 4-connector (binding strap).
Five, the specific embodiment
Below in conjunction with accompanying drawing the utility model is done detailed description.
Embodiment 1: as Fig. 1, Fig. 2, Fig. 3, a kind of retaining wall controlled blasting charge structure, comprise the explosive 3 that is packaged in the moulding cartridge bag wrapper 2, it is characterized in that: described detonation wave barrier layer 1 is cylindric conduit, and have groove symmetrically and leave connector 4 on cylindric duct wall, moulding cartridge bag wrapper 2 sidewalls that are positioned at the groove place on the cylindric duct wall are provided with the wedge-shaped impression that inwardly concaves.So the bilateral retaining wall controlled blasting charge structure that forms is specially adapted to the both sides rock mass and all needs protection, and as stone mining, also can be used for tunnel piercing or the side slope explosion of having only a side to need protection.
Embodiment 2: as Fig. 4, Fig. 5, Fig. 6, a kind of retaining wall controlled blasting charge structure, comprise the explosive 3 that is packaged in the moulding cartridge bag wrapper 2, it is characterized in that: described detonation wave barrier layer 1 comprises that a side has two-layer semicircle frid, opposite side has the semicircle frid of one deck, and connects by binding strap 4 between the semicircle frid.
Embodiment 3: as Fig. 7, Fig. 8, Fig. 9, a kind of retaining wall controlled blasting charge structure, comprise the explosive 3 that is packaged in the moulding cartridge bag wrapper 2, described detonation wave barrier layer 1 comprises that both sides all are provided with two-layer semicircle frid, and connects by binding strap 4 between the semicircle frid.
Embodiment 4: as Figure 10, Figure 11, Figure 12, a kind of retaining wall controlled blasting charge structure, comprise the explosive 3 that is packaged in the moulding cartridge bag wrapper 2, the two-layer semicircle frid of described detonation wave barrier layer 1 for only being provided with in moulding cartridge bag wrapper 2 one sides, and be connected by binding strap 4 between semicircle frid and the moulding cartridge bag wrapper 2.So the one-sided retaining wall controlled blasting charge structure that forms is specially adapted to tunnel piercing or the side slope explosion of having only a side to need protection.
Claims (3)
1. a retaining wall controlled blasting charge structure comprises the explosive (3) that is packaged in the moulding cartridge bag wrapper (2), it is characterized in that: also be provided with one deck or multilayer detonation wave barrier layer (1) in moulding cartridge bag wrapper (2) outside.
2. retaining wall controlled blasting charge structure according to claim 1, it is characterized in that: described detonation wave barrier layer (1) is cylindric conduit, and have groove symmetrically and leave connector (4) on cylindric duct wall, moulding cartridge bag wrapper (2) sidewall that is positioned at the groove place on the cylindric duct wall is provided with the wedge-shaped impression that inwardly concaves.
3. retaining wall controlled blasting charge structure according to claim 1 is characterized in that: described detonation wave barrier layer (1) is circular-arc frid, and circular-arc frid is connected with moulding cartridge bag wrapper (2) by connector (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200814429U CN201083471Y (en) | 2007-10-09 | 2007-10-09 | Retaining wall controlled blasting explosive bag structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200814429U CN201083471Y (en) | 2007-10-09 | 2007-10-09 | Retaining wall controlled blasting explosive bag structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201083471Y true CN201083471Y (en) | 2008-07-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200814429U Expired - Fee Related CN201083471Y (en) | 2007-10-09 | 2007-10-09 | Retaining wall controlled blasting explosive bag structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201083471Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101825417A (en) * | 2010-04-15 | 2010-09-08 | 河海大学 | Kerf sand inclusion blasting cartridge and blasting installation device and production technology thereof |
| CN101738148B (en) * | 2009-12-21 | 2013-01-02 | 煤炭科学研究总院南京研究所 | Tunnel medium-length hole smooth blasting method |
| CN105909248A (en) * | 2016-04-27 | 2016-08-31 | 何满潮 | Protecting wall orientation mechanism and water jet drilling and slitting device and method |
| CN106907960A (en) * | 2017-04-17 | 2017-06-30 | 安徽理工大学 | A kind of one side notched blasting powder column housing |
-
2007
- 2007-10-09 CN CNU2007200814429U patent/CN201083471Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738148B (en) * | 2009-12-21 | 2013-01-02 | 煤炭科学研究总院南京研究所 | Tunnel medium-length hole smooth blasting method |
| CN101825417A (en) * | 2010-04-15 | 2010-09-08 | 河海大学 | Kerf sand inclusion blasting cartridge and blasting installation device and production technology thereof |
| CN101825417B (en) * | 2010-04-15 | 2014-04-09 | 河海大学 | Kerf sand inclusion blasting cartridge and blasting installation device and production technology thereof |
| CN105909248A (en) * | 2016-04-27 | 2016-08-31 | 何满潮 | Protecting wall orientation mechanism and water jet drilling and slitting device and method |
| CN105909248B (en) * | 2016-04-27 | 2019-08-20 | 何满潮 | For the retaining wall attitude reference device of high-pressure water jet joint-cutting, water jet drilling joint-cutting device and method |
| CN106907960A (en) * | 2017-04-17 | 2017-06-30 | 安徽理工大学 | A kind of one side notched blasting powder column housing |
| CN106907960B (en) * | 2017-04-17 | 2019-02-12 | 安徽理工大学 | A kind of single side notched blasting powder column shell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080709 Termination date: 20121009 |