CN114543607B - Building blasting protection structure - Google Patents
Building blasting protection structure Download PDFInfo
- Publication number
- CN114543607B CN114543607B CN202210289670.4A CN202210289670A CN114543607B CN 114543607 B CN114543607 B CN 114543607B CN 202210289670 A CN202210289670 A CN 202210289670A CN 114543607 B CN114543607 B CN 114543607B
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- Prior art keywords
- buffer
- rod
- plate
- building
- base
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
- F42D3/02—Particular applications of blasting techniques for demolition of tall structures, e.g. chimney stacks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D5/00—Safety arrangements
- F42D5/04—Rendering explosive charges harmless, e.g. destroying ammunition; Rendering detonation of explosive charges harmless
- F42D5/045—Detonation-wave absorbing or damping means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The application relates to a building blasting protective structure, including the isolation groove, be provided with vibration isolator in the isolation groove, vibration isolator includes the base, base one side horizontal sliding connection has the buffer board, and the base deviates from one side by the blasting building and is fixed with the backup pad, is equipped with support piece between backup pad and the buffer board, and support piece includes the bracing piece that links to each other with the buffer board, and the one end of bracing piece orientation backup pad is equipped with the buffer rod that a plurality of slopes set up, and buffer rod one end is articulated with the bracing piece, and the other end links to each other with the backup pad is sliding, is equipped with buffer spring between buffer rod and the bracing piece. The shock wave that is produced by blasting building and ground contact strikes the buffer board on, and the buffer board atress extrudees the bracing piece, and the bracing piece is pressed and is driven the buffer board and pull back, drives the buffer rod motion simultaneously, and the buffer rod extrudees buffer spring, and buffer spring buffers buffer rod and buffer board to absorb the vibratory force of shock wave, improve the security.
Description
Technical Field
The application relates to the field of building blasting, in particular to a building blasting protection structure.
Background
In demolition construction of buildings, blasting has become a major way, which has characteristics of high efficiency and economy, but there is a certain safety problem because flystones and shock waves will be generated during demolition blasting.
The related art can refer to the chinese patent publication No. CN206019493U and discloses a building blasting protective structure, which comprises a substrate and an iron wire net, substrate surface mounting has the iron wire net, the high-pressure pipe network is installed to the substrate bottom, install a plurality of water curtain shower nozzles that the size is the same on the high-pressure pipe network, install the valve on the water curtain shower nozzle lateral wall, the inlet tube is installed to water curtain shower nozzle bottom, and the inside at the high-pressure pipe network is installed to the inlet tube, gas sensor is installed to one side of inlet tube, the controller is installed on gas sensor's top, the battery is installed to one side of controller, the water inlet switch is installed at the inlet tube top, the sound insulation barrier is installed to high-pressure pipe network bottom, install a plurality of silencers on the sound insulation barrier in-line, through the embedded water curtain shower nozzle that installs a plurality of sizes the same on the high-pressure pipe network, through water curtain shower nozzle, more effective reduction dust.
At present, when building blasting, the existing protection device basically processes dust generated during blasting, but vibration and shock waves generated during building blasting are not eliminated, and the shock waves propagate through the ground to drive surrounding building bodies to vibrate, so that the safety of the surrounding building bodies is affected.
Disclosure of Invention
In order to improve the security of building body around, this application provides a building blasting protective structure.
The application provides a building blasting protective structure, adopts following technical scheme:
the utility model provides a building blasting protective structure, is including seting up in by blasting building isolation groove all around, be provided with vibration isolator in the isolation groove, vibration isolator is including inlaying in the base of isolation groove, the base is close to by one side horizontal sliding connection of blasting building has the buffer board, the base deviates from one side by blasting building and is fixed with the backup pad, be equipped with support piece between backup pad and the buffer board, support piece includes the bracing piece that links to each other with the buffer board level, the one end circumference of bracing piece orientation backup pad is equipped with the buffer rod that a plurality of slopes set up, buffer rod one end is articulated with the bracing piece, and the other end slides with the backup pad and links to each other, be equipped with buffer spring between buffer rod and the bracing piece.
By adopting the technical scheme, the isolation groove separates the exploded building from surrounding buildings, and prevents shock waves from being transmitted from the ground. Meanwhile, when the blasted building collapses, the blasted building collides with the shock wave generated by ground contact to the buffer plate, the buffer plate is stressed to squeeze the supporting rod, the supporting rod is pressed to drive the buffer plate to retract, meanwhile, the buffer rod is driven to move, the buffer rod is used for squeezing the buffer spring, the buffer spring is used for buffering the buffer rod and the buffer plate, and accordingly vibration force of the shock wave is absorbed, and continuous propagation is prevented. The absorption capacity of the buffer rods can be effectively increased by the plurality of circumferentially arranged buffer rods, so that the energy absorption effect is guaranteed, the protection effect on surrounding buildings is improved, and the safety is improved.
Optionally, the base lower surface is equipped with the base, be equipped with a plurality of vertical vibration isolation springs that set up between base and the base.
By adopting the technical scheme, when the vibration force is in a vertical state, the vibration-proof spring absorbs the vertical vibration force, so that the vibration-proof effect is improved.
Optionally, the backup pad is connected with the unloading dish towards the one side rotation of bracing piece, the center coaxial fixed with of unloading dish unloads the force pole, the bracing piece cavity sets up, it wears to locate the bracing piece inside and links to each other with the bracing piece screw thread to unload the force pole.
Through adopting above-mentioned technical scheme, when the buffer board drove the buffer rod towards backup pad linear motion, unload the power pole and rotate under the drive of screw thread, on the one hand can slow down the velocity of motion of buffer board, on the other hand also can improve the energy-absorbing ability to improve the antivibration effect.
Optionally, a reset torsion spring is arranged between the force unloading disc and the supporting plate, one end of the reset torsion spring is connected with the force unloading disc, and the other end of the reset torsion spring is connected with the supporting plate.
Through adopting above-mentioned technical scheme, unload the torsion of power dish when rotating and need overcome reset torsion spring to increase vibration damper's ability of absorbing vibration force improves the damping effect, reset torsion spring also provides elasticity for unloading the reset of power dish and bracing piece, guarantees that the bracing piece can normally reset.
Optionally, a plurality of guide slots that radially set up have been seted up on the unloading dish, the one end sliding connection that the bracing piece was kept away from to the buffer rod is in the guide slot, buffer spring sets up in the guide slot.
Through adopting above-mentioned technical scheme, when the bracing piece moves towards the backup pad, the buffer rod slides in the guide way, extrudees buffer spring. The guide slot limits and guides the motion of the buffer rod, and the buffer rod is prevented from being blocked.
Optionally, the buffer board cavity sets up, be equipped with the buffer in the buffer board.
Through adopting above-mentioned technical scheme, when the shock wave strikes the buffer board, the inside buffer liquid level of buffer board is first to be buffer structure, and the buffer is vibrating in the buffer board and is absorbed partial vibrating force.
Optionally, the horizontal motion is connected with the stripper plate in the buffer plate, the connecting hole has been seted up towards the one side of bracing piece to the buffer plate, the tip of bracing piece passes the connecting hole in the buffer plate and links to each other with the stripper plate is fixed, the buffer is located one side that the stripper plate deviates from the bracing piece, link to each other through a plurality of fracture poles between bracing piece and the buffer plate, the wash port has been seted up to the one side that the buffer plate deviates from the bracing piece, be equipped with the check valve in the wash port.
Through adopting above-mentioned technical scheme, the buffer board receives the shock wave to strike and drives the bracing piece to the backup pad motion, when the bracing piece motion extremely limit position can't continue to the backup pad direction motion, if the buffer board still bears great impact force, the buffer board still has the trend to the backup pad motion, the buffer board applys the extrusion force to the bracing piece, until the fracture pole fracture, at this moment, the bracing piece slides with the buffer board and links to each other, the bracing piece drives the stripper plate and extrudes the buffer solution in the buffer board, the pressure in the buffer board is greater than the bearing pressure of check valve, the check valve is opened, the buffer solution is discharged from the check valve, the buffer board still can carry out final absorption buffering to the impact force this moment, thereby guarantee vibration isolator's protection effect.
Optionally, the upper end of base is equipped with the guard plate that is used for sheltering from the isolation groove, the standing groove that is used for placing sand is offered to guard plate upper surface.
By adopting the technical scheme, the blasted building collapses to the ground to be contacted with the protection plate, loose sand is placed on the protection plate, and the sand can buffer the collapsed blasted building, so that the impact force is reduced.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by arranging the isolation groove and the vibration isolator, shock waves generated when the blasted building collapses can be absorbed by the buffer plate and the buffer spring, so that the transmission of the shock waves is reduced, surrounding buildings are protected, and the safety of the surrounding buildings is improved;
2. through the setting of unloading the force dish, when the buffer board received the impact force, unload the force dish and can absorb the impact force of shock wave to improve the protection effect.
Drawings
Fig. 1 is a schematic diagram of the positional relationship between a building blast protection structure and a blasted building.
Fig. 2 is a schematic view of the structure of the inside of the isolation tank in the embodiment.
Fig. 3 is a schematic diagram showing connection of the support rod and the support plate in the embodiment.
FIG. 4 is a schematic diagram showing the connection of the support rod and the buffer plate in the embodiment.
Reference numerals illustrate: 1. an isolation groove; 2. a base; 3. a buffer plate; 31. an extrusion plate; 32. a connection hole; 33. a water discharge hole; 34. a cavity; 35. a water chamber; 4. a support plate; 41. a force-unloading disc; 411. a guide groove; 42. a force-unloading rod; 43. a reset torsion spring; 44. a guide block; 51. a support rod; 511. breaking the rod; 52. a buffer rod; 53. a buffer spring; 6. a base; 61. vibration-proof springs; 7. a protection plate; 71. and (5) placing a groove.
Detailed Description
The present application is described in further detail below with reference to the accompanying drawings.
The embodiment of the application discloses building blasting protective structure, refer to fig. 1 and 2, including opening the isolation tank 1 around by the blasting building, be provided with vibration isolator in the isolation tank 1. The shock wave generated when the blasted building is blasted is blocked by the isolation groove 1 and absorbed by the vibration-proof device, and the impact force transmitted to the surrounding building is small, so that the surrounding building is protected.
Referring to fig. 2 and 3, the vibration isolator includes a base 6, and a base 2 is provided on the base 6. The base 6 is arranged at the bottom of the isolation groove 1, a plurality of buffer springs 53 which are vertically arranged are arranged on the upper surface of the base 6, and the upper ends of the buffer springs 53 are connected with the bottom of the base 2. The vertical impact force generated when the blasted building is blasted is absorbed by the buffer spring 53, thereby reducing the impact force of the shock wave.
Referring to fig. 2, a shielding plate 7 for shielding the isolation groove 1 is fixed to the upper end of the base 2, the area of the shielding plate 7 is larger than that of the isolation groove 1, and the shielding plate 7 is located above the isolation groove 1. The upper surface of the protection plate 7 is provided with a placing groove 71 for placing sand. When the blasted building collapses, the blasted building falls on the protection plate 7 with the sand, and loose sand can buffer the collapsed blasted building, so that the impact force when the blasted building collapses is reduced.
Referring to fig. 2 and 3, a buffer plate 3 is horizontally slidably connected to a side of the base 2 close to the blasted building, and a support plate 4 is fixed to a side of the base 2 facing away from the blasted building. A supporting member is arranged between the supporting plate 4 and the buffer plate 3, and absorbs the impact force in the horizontal direction and is matched with the buffer spring 53, so that the impact force of the shock wave is reduced as a whole.
Referring to fig. 3, the support member includes a support rod 51 and a buffer rod 52, the support rod 51 being horizontally disposed, one end of the support rod 51 being connected to the buffer plate 3, and the other end being hinged to the buffer rod 52. The buffer rod 52 is provided with a plurality of pieces, is arranged along the circumferential direction of the support rod 51, and is hinged and connected with one end of the support rod 51 away from the buffer plate 3.
Referring to fig. 2 and 3, one end of the buffer rod 52, which is far from the support rod 51, is slidably connected to the support plate 4, and a buffer spring 53 is provided between the buffer rod 52 and the support plate 4. When the buffer plate 3 receives the impact force, the buffer plate 3 drives the buffer rod 52 to move towards the direction of the supporting plate 4, the buffer rod 52 extrudes the buffer spring 53, and the impact force of the vibration is absorbed by the stress of the buffer spring 53, so that the impact force is weakened.
Referring to fig. 2 and 3, a force-unloading disc 41 is rotatably connected to one surface of the support plate 4 facing the buffer plate 3, a reset torsion spring 43 is arranged between the force-unloading disc 41 and the support plate 4, one end of the reset torsion spring 43 is connected with the force-unloading disc 41, and the other end is connected with the support plate 4. A plurality of guide slots 411 which are radially arranged are arranged on the force unloading disc 41, the guide slots 411 are in one-to-one correspondence with the buffer rods 52, the guide blocks 44 are connected in a sliding manner in the guide slots 411, and the buffer springs 53 are arranged between the bottoms of the guide slots 411 and the guide blocks 44. The end of the buffer rod 52 remote from the support rod 51 is hingedly connected to the guide block 44. When the support rod 51 is forced to move toward the support plate 4, a pressing force is applied to the buffer rod 52, the buffer rod 52 pushes the guide block 44, and the guide block 44 presses the buffer spring 53, so that the support rod 51 and the buffer plate 3 are buffered.
Referring to fig. 2 and 3, the support rod 51 is coaxially disposed with the force-discharging plate 41, the support rod 51 is hollow, the force-discharging rod 42 is coaxially fixed to the center of the force-discharging plate 41, and the force-discharging rod 42 is threaded through the support rod 51 and is connected with the support rod 51. The supporting rod 51 moves towards the supporting plate 4, the force unloading rod 42 rotates under the drive of the threads, the force unloading disc 41 overcomes the torsion force of the reset torsion spring 43 to rotate, and the reset torsion spring 43 absorbs the impact force, so that the vibration impact force is reduced.
Referring to fig. 2 and 3, the buffer plate 3 is hollow, a buffer chamber is provided in the buffer plate 3, and a squeeze plate 31 is horizontally and movably connected in the buffer chamber, and the squeeze plate 31 partitions the buffer chamber into a water chamber 35 and a cavity 34. The water chamber 35 is located on the side of the compression plate 31 adjacent to the blasted building and the cavity 34 is located on the side of the compression plate 31 facing away from the blasted building. The water chamber 35 is filled with a buffer solution. The shock wave generated by collapse of the blasted building hits the buffer plate 3, the buffer solution in the buffer plate 3 is of a first buffer structure, the buffer solution absorbs part of impact force, then the buffer plate 3 drives the buffer rod 52 to press the supporting plate 4, the force unloading disc 41 is stressed to rotate, and the impact force is absorbed for the second time. Thereby improving the protection effect of the integral vibration isolator.
Referring to fig. 2 and 4, the buffer plate 3 is provided with a connection hole 32 at the center of one surface facing the support plate 4, and the end of the support rod 51 remote from the support plate 4 extends into the cavity 34 from the connection hole 32 and is fixedly connected with the pressing plate 31. The supporting rod 51 and the buffer plate 3 are connected by a plurality of breaking rods 511. When the breaking lever 511 is not broken, the buffer plate 3 is fixedly connected with the support lever 51, and the buffer plate 3 can drive the support lever 51 to linearly move. When the support rod 51 moves toward the support plate 4 to the limit, the buffer plate 3 applies a pressing force to the support rod 51 until the breaking rod 511 breaks while the support rod 51 slides in the connection hole 32 while the buffer plate 3 is still moving toward the support plate 4.
Referring to fig. 2 and 4, a water drain hole 33 communicating with the water cavity 35 is formed in a surface of the buffer plate 3 facing away from the support rod 51, and a check valve is provided in the water drain hole 33. When the breaking rod 511 breaks and the buffer plate 3 still moves toward the support plate 4, the space in the water chamber 35 is compressed at this time because the support rod 51 and the pressing plate 31 cannot continue to move toward the support plate 4, and the pressure in the water chamber 35 becomes large until the pressure is larger than the bearing pressure of the check valve, the check valve is opened, and the buffer liquid is discharged from the drain hole 33. When the impact force born by the buffer plate 3 is large, after the support rod 51 is pressed to the limit position, the one-way valve is opened to discharge the buffer liquid, so that the displacement speed of the buffer plate 3 is slowed down, and the impact force is absorbed finally.
The implementation principle of the building blasting protection structure of the embodiment of the application is as follows: an isolation groove 1 is dug around the blasted building, and a vibration-proof mechanism is placed in the isolation groove 1. When receiving the impact force of vibration, the buffer carries out energy-absorbing for the first time, and then buffer board 3 drives bracing piece 51 to the backup pad 4 direction motion, and unload power dish 41 and rotate, carries out the energy-absorbing for the second time to the impact force, and after bracing piece 51 moved to extreme position, buffer board 3 still moved to backup pad 4 direction, and the check valve is opened, and the buffer discharges gradually, and buffer board 3 slowly moves to backup pad 4 direction, carries out the energy-absorbing for the third time. The impact force generated when the blasted building collapses is absorbed by multiple times of energy absorption, so that surrounding buildings are protected, and the safety is improved.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (4)
1. The utility model provides a building blasting protective structure which characterized in that: including opening in by the isolation groove (1) around the blasting building, be provided with vibration isolator in isolation groove (1), vibration isolator is including inlaying base (2) in isolation groove (1), base (2) are close to by the horizontal sliding connection of one side of blasting building has buffer board (3), base (2) deviate from by one side of blasting building and are fixed with backup pad (4), be equipped with support piece between backup pad (4) and buffer board (3), support piece includes bracing piece (51) that link to each other with buffer board (3) level, bracing piece (51) are equipped with buffer rod (52) that a plurality of slopes set up towards the one end circumference of backup pad (4), base (2) lower surface is equipped with base (6), be equipped with a plurality of vertical vibration isolation springs (61) that set up between base (6) and base (2). A force unloading disc (41) is rotationally connected to one surface of the supporting plate (4) facing the supporting rod (51), a force unloading rod (42) is coaxially fixed at the center of the force unloading disc (41), the supporting rod (51) is arranged in a hollow mode, and the force unloading rod (42) penetrates through the supporting rod (51) and is connected with the supporting rod (51) in a threaded mode; a reset torsion spring (43) is arranged between the force unloading disc (41) and the supporting plate (4), one end of the reset torsion spring (43) is connected with the force unloading disc (41), and the other end of the reset torsion spring is connected with the supporting plate (4); a plurality of guide grooves (411) which are radially arranged are formed in the force unloading disc (41), one end of the buffer rod (52) is hinged with the supporting rod (51), the other end of the buffer rod is connected with the force unloading disc (41) in a sliding mode, and a buffer spring (53) is arranged between the buffer rod (52) and the force unloading disc (41); one end of the buffer rod (52) far away from the supporting rod (51) is slidably connected in the guide groove (411), and the buffer spring (53) is arranged in the guide groove (411).
2. A building blast protective structure according to claim 1, wherein: the buffer plate (3) is arranged in a hollow mode, and buffer solution is arranged in the buffer plate (3).
3. A building blast protective structure according to claim 2, wherein: the buffer plate (3) is internally and horizontally connected with the extrusion plate (31), a connecting hole (32) is formed in one face, facing the support rod (51), of the buffer plate (3), the end portion of the support rod (51) penetrates through the connecting hole (32) to be located in the buffer plate (3) and fixedly connected with the extrusion plate (31), the buffer solution is located on one side, facing away from the support rod (51), of the extrusion plate (31), the support rod (51) is connected with the buffer plate (3) through a plurality of breaking rods (511), a water drain hole (33) is formed in one face, facing away from the support rod (51), of the buffer plate (3), and a one-way valve is arranged in the water drain hole (33).
4. A building blast protective structure according to claim 1, wherein: the upper end of base (2) is equipped with guard plate (7) that are used for sheltering from isolation groove (1), standing groove (71) that are used for placing sand are seted up to guard plate (7) upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210289670.4A CN114543607B (en) | 2022-03-23 | 2022-03-23 | Building blasting protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210289670.4A CN114543607B (en) | 2022-03-23 | 2022-03-23 | Building blasting protection structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114543607A CN114543607A (en) | 2022-05-27 |
| CN114543607B true CN114543607B (en) | 2023-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210289670.4A Active CN114543607B (en) | 2022-03-23 | 2022-03-23 | Building blasting protection structure |
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| CN (1) | CN114543607B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735357A (en) * | 2020-07-06 | 2020-10-02 | 武汉理工大学 | A novel water gasbag for structure blasting damping and dust fall |
| AU2020103204A4 (en) * | 2020-10-23 | 2021-01-14 | Tianjin Research Institute For Water Transport Engineering, M.O.T. | Emergency wave-blocking embankment protection device |
| CN214372076U (en) * | 2021-01-28 | 2021-10-08 | 新疆天河爆破工程有限公司 | Hole pile excavation blasting flying rock protector |
| CN214666430U (en) * | 2021-03-11 | 2021-11-09 | 洞口县迅雷爆破工程有限公司 | Pile foundation blasting protector |
-
2022
- 2022-03-23 CN CN202210289670.4A patent/CN114543607B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735357A (en) * | 2020-07-06 | 2020-10-02 | 武汉理工大学 | A novel water gasbag for structure blasting damping and dust fall |
| AU2020103204A4 (en) * | 2020-10-23 | 2021-01-14 | Tianjin Research Institute For Water Transport Engineering, M.O.T. | Emergency wave-blocking embankment protection device |
| CN214372076U (en) * | 2021-01-28 | 2021-10-08 | 新疆天河爆破工程有限公司 | Hole pile excavation blasting flying rock protector |
| CN214666430U (en) * | 2021-03-11 | 2021-11-09 | 洞口县迅雷爆破工程有限公司 | Pile foundation blasting protector |
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| Publication number | Publication date |
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| CN114543607A (en) | 2022-05-27 |
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