CN214620895U - Vibration test blasting network based on air column charging blasting - Google Patents
Vibration test blasting network based on air column charging blasting Download PDFInfo
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- CN214620895U CN214620895U CN202120407976.6U CN202120407976U CN214620895U CN 214620895 U CN214620895 U CN 214620895U CN 202120407976 U CN202120407976 U CN 202120407976U CN 214620895 U CN214620895 U CN 214620895U
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- blasting
- air column
- partition plate
- charging
- connecting rods
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- 238000005422 blasting Methods 0.000 title claims abstract description 73
- 238000012360 testing method Methods 0.000 title claims abstract description 18
- 230000035939 shock Effects 0.000 claims abstract description 45
- 239000002360 explosive Substances 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 238000010521 absorption reaction Methods 0.000 claims abstract description 6
- 238000005192 partition Methods 0.000 claims description 27
- 238000005474 detonation Methods 0.000 claims description 7
- 239000000843 powder Substances 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 11
- 230000037452 priming Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 5
- 238000004880 explosion Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002547 anomalous effect Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a vibration test blasting network based on air column powder charge blasting, including a plurality of blast holes, be provided with air column interval charging means in the blast hole, a plurality of the blast hole is connected through detonating the wire in order to realize hole-by-hole blasting, and a plurality of the blasting transmission direction of blast hole is "S" type transmission, and the quantity sum of two adjacent lines of blast holes is the same with the quantity of each row of blast hole, the charging means includes a plurality of powder charge subassemblies, the capacity of powder charge subassembly is adjustable, is used for centre gripping explosive; the plurality of carrying rods are arranged between the adjacent charge components, are used for supporting the charge components and form a spacing cavity; and the shock absorption pad is arranged at the bottom of the device and used for reducing shock. The utility model discloses a priming network makes the data that every blast hole recorded can not mutual interference, reaches the effect that once explodes and survey multiunit data.
Description
Technical Field
The utility model relates to a blasting test technical field especially relates to vibration test blasting network based on air column powder charge blasting.
Background
In recent years, the rapid development of deep hole blasting in construction projects such as large-scale water conservancy mines, chemical engineering and the like is widely applied as the most common technology for earth and stone excavation, but when the line construction blasting operation and other construction operations are synchronously carried out in a large-scale construction base, negative effects generated by the blasting operation can have certain influence on other construction operations, so that reasonable technology and safety protection measures are required to be adopted to control the negative effects of blasting within a safety allowable range. Blasting vibration is a common negative effect of the outdoor earth-rock blasting engineering, and the blasting vibration effect can be effectively reduced by using the air column vibration reduction theory and technology in blast holes. However, the existing method for testing the vibration reduction effect of the air cushion layer is not accurate enough, and the existing air cushion layer has poor vibration reduction effect and needs to be further improved.
SUMMERY OF THE UTILITY MODEL
Based on the technical problem that the background art exists, the utility model provides a vibration test blasting network based on air column powder charge blasting, the data that the blasting network that sets up made every blast hole record can not mutual interference, reach the effect that once explodes and survey multiunit data.
The utility model provides a vibration test blasting network based on air column powder charge blasting, including a plurality of blast holes, be provided with air column interval charging means in the blast hole, a plurality of the blast hole is connected through detonating the wire in order to realize hole-by-hole blasting, and a plurality of the blasting transmission direction in blast hole is "S" type transmission, and the quantity sum of two adjacent lines of blast holes is the same with the quantity in every row of blast hole, the charging means includes a plurality of powder charge subassemblies, the capacity of powder charge subassembly is adjustable, is used for centre gripping explosive; the plurality of carrying rods are arranged between the adjacent charge components, are used for supporting the charge components and form a spacing cavity; and the shock absorption pad is arranged at the bottom of the device and used for reducing shock.
Preferably, the distance a between adjacent blast holes is 3-5m, the diameter of the blast holes is 80-100mm, and the depth of the blast holes is 12-18 m.
Preferably, a delay detonator is further arranged on the detonating lead connected with the adjacent blasting holes, and the propagation delay of the delay detonator is 80-100 ms.
Preferably, the powder charging assembly comprises a first partition plate and a second partition plate, a plurality of first connecting rods are uniformly distributed on the first partition plate, second connecting rods matched with the first connecting rods on the first partition plate are distributed on the second partition plate, an adjusting sleeve used for adjusting the distance between the first partition plate and the second partition plate is further connected between the first connecting rods and the second connecting rods, one end of the adjusting sleeve is sleeved on the first connecting rods and is rotatably connected with the first connecting rods, and the other end of the adjusting sleeve is sleeved on the second connecting rods and is in threaded connection with the second connecting rods.
Preferably, the middle parts of the carrying rod, the first connecting rod, the second connecting rod and the adjusting sleeve are communicated, the second connecting rod is further provided with a through hole communicated with the middle part of the second connecting rod, and an explosive fuse connected with the explosive penetrates through the carrying rod, the first connecting rod, the second connecting rod and the adjusting sleeve and extends out of the top of the device to be used for detonating the explosive.
Preferably, the upper end of the first connecting rod is provided with a first slot for inserting the bearing rod, and the lower end of the second connecting rod is provided with a second slot for inserting the bearing rod.
Preferably, the shock absorbing pad comprises a first shock absorbing member and a second shock absorbing member, the second shock absorbing member is inserted into the first shock absorbing member in a wedge shape, and the first shock absorbing member and the second shock absorbing member each comprise a plurality of irregular cavities therein.
Compared with the prior art, the utility model discloses a beneficial technological effect:
according to the detonation network, the number of each row of the blast holes is the same as that of each row of the blast holes, and the distance between every two adjacent blast holes is the same, so that the mutual influence among the blast holes is avoided, and the measured data is more accurate; the explosive loading assembly is adjustable in capacity, explosive quantities can be adjusted according to different blasting conditions, the explosive loading assembly comprises a first partition plate and a second partition plate, a first connecting rod, a second connecting rod and an adjusting sleeve are arranged between the first partition plate and the second partition plate, and the distance between the first partition plate and the second partition plate can be adjusted simply and conveniently by rotating the adjusting sleeve; the shock pad is arranged at the lower end of the device, when blasting, the shock pad can be extruded by the explosion impact force, the first shock absorbing piece and the second shock absorbing piece arranged on the shock pad and a plurality of irregular cavities contained in the shock pad can absorb the impact energy at the bottom of the blast hole, the pressure of the shock wave at the bottom of the blast hole is reduced, and part of the explosion energy is blocked and converted into the seismic wave to be transmitted to the deep part of the stratum and the periphery, so that the aim of reducing the blasting vibration is fulfilled; this application alternates the detonating cord of each explosive in accepting pole, head rod, second connecting rod and adjusting collar to link together a plurality of detonating cords, reach the effect of time delay blasting on the one hand, on the other hand can be when putting into the blast hole damage to detonating cord with the device.
Drawings
Fig. 1 is a schematic diagram of a detonation network of a vibration testing blasting network based on air column charging blasting according to the present invention;
fig. 2 is a schematic structural view of the air column spaced charging device for deep hole blasting according to the present invention;
fig. 3 is a schematic structural diagram of the charging assembly provided by the present invention;
fig. 4 is a cross-sectional view of the charge assembly proposed by the present invention;
fig. 5 is a schematic structural view of the shock pad of the present invention.
In the figure: 1-a first clapboard, 2-explosive, 3-a second clapboard, 4-a shock pad, 5-a first connecting rod, 6-a spacing cavity, 7-an adjusting sleeve, 8-an explosion wire, 9-a second connecting rod, 10-a bearing rod, 11-a first slot, 12-a second slot, 13-a through hole, 14-a first shock absorption piece, 15-a cavity, 16-a second shock absorption piece and 17-a blast hole.
Detailed Description
The present invention will be further explained with reference to the following embodiments.
Referring to fig. 1-3, the utility model provides a vibration test blasting network based on air column powder charge blasting, including a plurality of blast holes, be provided with air column spaced charging means in the blast hole, a plurality of the blast hole is connected through detonating the wire and is realized the hole-by-hole blasting, and a plurality of the blasting transmission direction in blast hole is "S" type transmission, and the quantity sum of two adjacent lines of blast holes all is the same with the quantity in every row of blast hole, the charging means includes a plurality of powder charge subassemblies, the capacity of powder charge subassembly is adjustable, is used for centre gripping explosive; the plurality of carrying rods are arranged between the adjacent charge components, are used for supporting the charge components and form a spacing cavity; and the shock absorption pad is arranged at the bottom of the device and used for reducing shock.
Specifically, the distance a between adjacent blast holes is 3-5m, the diameter of each blast hole is 80-100mm, and the depth of each blast hole is 12-18 m.
In addition, a delay detonator is also arranged on the detonating lead connected with the adjacent blasting holes, and the propagation delay of the delay detonator is 80-100 ms.
Specifically, the powder charging assembly comprises a first partition plate 1 and a second partition plate 3, a plurality of first connecting rods 5 are uniformly distributed on the first partition plate 1, second connecting rods 9 matched with the first connecting rods 5 on the first partition plate 1 are distributed on the second partition plate 3, adjusting sleeves 7 used for adjusting the distance between the first partition plate 1 and the second partition plate 3 are further connected between the first connecting rods 5 and the second connecting rods 9, one end of each adjusting sleeve 7 is sleeved on the first connecting rod 5 and is rotatably connected with the first connecting rod 5, and the other end of each adjusting sleeve 7 is sleeved on the second connecting rod 9 and is in threaded connection with the second connecting rod 9.
The utility model provides a powder charge subassembly capacity is adjustable, can carry out the regulation of 2 amounts of explosives to different blasting circumstances, and the powder charge subassembly includes first baffle 1 and second baffle 3, is provided with head rod 5, second connecting rod 9 and adjusting collar 7 between first baffle 1 and the second baffle 3, realizes the regulation of distance between first baffle 1 and the second baffle 3 through rotating adjusting collar 7, and is simple and convenient.
Specifically, the middle parts of the carrying rod 10, the first connecting rod 5, the second connecting rod 9 and the adjusting sleeve 7 are communicated, the second connecting rod 9 is further provided with a through hole 13 communicated with the middle part of the second connecting rod, and the detonating cord 8 connected with the explosive 2 penetrates through the carrying rod 10, the first connecting rod 5, the second connecting rod 9 and the adjusting sleeve 7 and extends out of the top of the device to be used for detonating the explosive 2.
The detonating cord 8 of each explosive 2 is inserted into the bearing rod 10, the first connecting rod 5, the second connecting rod 9 and the adjusting sleeve 7, and the detonating cords 8 are connected together, so that on one hand, the effect of delayed blasting is achieved, and on the other hand, the detonating cord 8 can be damaged when the device is placed into a blasting hole.
Specifically, the upper end of the first connecting rod 5 is provided with a first slot 11 for inserting the bearing rod 10, and the lower end of the second connecting rod 9 is provided with a second slot 12 for inserting the bearing rod 10.
Specifically, the shock absorbing pad 4 comprises a first shock absorbing member 14 and a second shock absorbing member 16, the second shock absorbing member 4 is inserted into the first shock absorbing member 14 in a wedge shape, and the first shock absorbing member 14 and the second shock absorbing member 16 each comprise a plurality of irregular cavities 15 therein. During blasting, the shock pad 4 can be extruded to the explosion impact force, and the first shock attenuation piece 14 and the second shock attenuation piece 16 that the shock pad 4 set up and inside a plurality of anomalous cavity 15 that contain all can absorb blast hole bottom impact energy, subduct the pressure of shock wave in blast hole bottom, and separation part explosion energy changes seismic wave to stratum deep and spread all around, reaches the purpose that reduces blasting vibrations.
The vibration testing method based on air column charging blasting comprises the following steps:
s1: arranging the blast holes according to the grouping quantity to be tested, wherein the quantity of each row of blast holes is the same as that of each row of blast holes, and the distances between the adjacent blast holes are the same;
s2: selecting an air column spaced charging device according to the hole depth of the blast holes to charge, and connecting detonating cords in the blast holes to form a detonating network;
s3: blasting by adopting a differential blasting mode, and measuring the vibration speed after blasting.
The peak vibration velocity of blasting is calculated by the following formula:
wherein: v-peak velocity of detonation, rho-rock density, kg/m3；Cp-rock longitudinal wave velocity, cm/s; r-distance from detonation source to measuring point, m; p is a radical ofm-is the mean detonation pressure of the detonation gas; k is a radical ofd-a radial uncoupled charge coefficient; k is a radical of1-axially uncoupled charge factor.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. The vibration testing blasting network based on air column charging blasting is characterized by comprising a plurality of blasting holes, wherein air column spaced charging devices are arranged in the blasting holes, the blasting holes are connected through detonating wires to realize hole-by-hole blasting, the blasting transmission directions of the blasting holes are in S-shaped transmission, the sum of the number of two adjacent rows of blasting holes is equal to the number of each row of blasting holes, each charging device comprises a plurality of charging components, and the capacity of each charging component is adjustable and used for clamping explosives; the plurality of carrying rods are arranged between the adjacent charge components, are used for supporting the charge components and form a spacing cavity; and the shock absorption pad is arranged at the bottom of the device and used for reducing shock.
2. The vibration testing blasting network based on column-charge-air blasting of claim 1, wherein the distance a between adjacent blastholes is 3-5m, the diameter of the blastholes is 80-100mm, and the depth of the blastholes is 12-18 m.
3. The vibration testing blasting network based on air column charging blasting according to claim 1, wherein the detonation conducting wires connected with adjacent blasting holes are further provided with time delay detonators, and the propagation delay of the time delay detonators is 80-100 ms.
4. The vibration testing blasting network based on air column charging blasting of claim 1, wherein the charging assembly comprises a first partition plate and a second partition plate, a plurality of first connecting rods are uniformly distributed on the first partition plate, second connecting rods matched with the first connecting rods on the first partition plate are distributed on the second partition plate, an adjusting sleeve for adjusting the distance between the first partition plate and the second partition plate is further connected between the first connecting rods and the second connecting rods, one end of the adjusting sleeve is sleeved on the first connecting rods and is rotatably connected with the first connecting rods, and the other end of the adjusting sleeve is sleeved on the second connecting rods and is in threaded connection with the second connecting rods.
5. The vibration testing blasting network based on air column charging blasting of claim 4, wherein the adapting rod, the first connecting rod, the second connecting rod and the adjusting sleeve are through in the middle, the second connecting rod is further provided with a through hole communicated with the middle, and a blasting cord connected with the explosive penetrates through the adapting rod, the first connecting rod, the second connecting rod and the adjusting sleeve and extends out of the top of the device for blasting the explosive.
6. The air column charge blasting-based vibration testing blasting network of claim 4, wherein the upper end of the first connecting rod is provided with a first slot for inserting the carrying rod, and the lower end of the second connecting rod is provided with a second slot for inserting the carrying rod.
7. The air column charge blasting-based vibration testing blasting network of claim 1, wherein the shock pad comprises a first shock absorbing member and a second shock absorbing member, the second shock absorbing member is inserted into the first shock absorbing member in a wedge shape, and each of the first shock absorbing member and the second shock absorbing member comprises a plurality of cavities therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120407976.6U CN214620895U (en) | 2021-02-23 | 2021-02-23 | Vibration test blasting network based on air column charging blasting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120407976.6U CN214620895U (en) | 2021-02-23 | 2021-02-23 | Vibration test blasting network based on air column charging blasting |
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|---|---|
| CN214620895U true CN214620895U (en) | 2021-11-05 |
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|---|---|---|---|
| CN202120407976.6U Expired - Fee Related CN214620895U (en) | 2021-02-23 | 2021-02-23 | Vibration test blasting network based on air column charging blasting |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114674187A (en) * | 2022-04-11 | 2022-06-28 | 安徽马钢矿业资源集团南山矿业有限公司 | Deep hole blasting vibration reduction method |
| CN114719696A (en) * | 2022-04-11 | 2022-07-08 | 安徽马钢矿业资源集团南山矿业有限公司 | Vibration reduction and dust fall method for strip mine |
-
2021
- 2021-02-23 CN CN202120407976.6U patent/CN214620895U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114674187A (en) * | 2022-04-11 | 2022-06-28 | 安徽马钢矿业资源集团南山矿业有限公司 | Deep hole blasting vibration reduction method |
| CN114719696A (en) * | 2022-04-11 | 2022-07-08 | 安徽马钢矿业资源集团南山矿业有限公司 | Vibration reduction and dust fall method for strip mine |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211105 |
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| CF01 | Termination of patent right due to non-payment of annual fee |