CN215373731U - Damping device for tunnel blasting construction - Google Patents
Damping device for tunnel blasting construction Download PDFInfo
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- CN215373731U CN215373731U CN202121865813.9U CN202121865813U CN215373731U CN 215373731 U CN215373731 U CN 215373731U CN 202121865813 U CN202121865813 U CN 202121865813U CN 215373731 U CN215373731 U CN 215373731U
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Abstract
The application relates to a damping device for tunnel blasting construction, which belongs to the field of tunnel construction equipment and comprises a plurality of damping mechanisms, a plurality of damping mechanisms and a plurality of damping mechanisms, wherein the damping mechanisms are arranged on a tunnel wall body and are close to the wall body around a tunnel; the shock absorption mechanism comprises a plurality of shock absorption components with the same structure; the tunnel wall is internally provided with a limiting groove, the damping assembly comprises a damping plate I and a damping plate II which are installed in the limiting groove, the damping plate I is close to a blasting area, the damping plate II is far away from the blasting area, the damping plate I and the damping plate II are elastic steel plates, two damping springs are fixedly arranged between the damping plate I and the damping plate II, and two ends of each damping spring are fixedly arranged on the damping plate I and the damping plate II respectively. This application has the effect that reduces the damage that the blasting caused to wall body around the tunnel.
Description
Technical Field
The application relates to the field of tunnel construction equipment, in particular to a damping device for tunnel blasting construction.
Background
The tunnel is the key and key engineering for highway, railway and other construction, the tunnel excavation method is developed rapidly with the development of railway construction and the progress of science and technology, the common excavation methods include drilling and blasting method, shield method and excavator method, the drilling and blasting method has strong adaptability to geological conditions and low excavation cost, and is particularly suitable for the construction of hard rock tunnels, broken rock tunnels and a large number of short tunnels, so the drilling and blasting method is still the current common tunnel excavation method at home and abroad.
Blasting is a technology which utilizes the compression, loosening, destruction, throwing and killing effects generated by the explosion of explosives in air, water, earth and stone media or objects to achieve the expected purpose, and when explosive packages or explosive charges explode in the earth and stone media or structures, the phenomena of compression, deformation, destruction, loosening and throwing are generated on the earth and stone media or structures, so that the blasting is mainly used for earth and stone engineering, the demolition of metal buildings and structures and the like.
The impact force generated during blasting of the tunnel is too large, so that the wall bodies around the tunnel are easily damaged, and further the excavation and construction of the tunnel wall bodies are influenced.
Disclosure of Invention
In order to reduce the damage that the blasting caused to wall body around the tunnel, this application provides tunnel blasting construction damping device.
The application provides a tunnel blasting construction damping device adopts following technical scheme:
a damping device for tunnel blasting construction comprises a plurality of damping mechanisms which are arranged on a tunnel wall body and close to the peripheral wall body of a tunnel; the shock absorption mechanism comprises a plurality of shock absorption components with the same structure; the tunnel wall is internally provided with a limiting groove, the damping assembly comprises a damping plate I and a damping plate II which are installed in the limiting groove, the damping plate I is close to a blasting area, the damping plate II is far away from the blasting area, the damping plate I and the damping plate II are elastic steel plates, two damping springs are fixedly arranged between the damping plate I and the damping plate II, and two ends of each damping spring are fixedly arranged on the damping plate I and the damping plate II respectively.
Through adopting above-mentioned technical scheme, the blasting back, shock wave transmits to shock attenuation board one, and shock attenuation board one compression damping spring, damping spring take place deformation, can consume the ripples that shakes, and shock attenuation board one and shock attenuation board two are elastic steel plate, reduce the ripples that shakes and to the wall body transmission around the tunnel, reduce the ripples that shakes and to the impact of wall body around the tunnel.
Optionally, one side of the damping plate II, which is close to the damping plate I, is fixedly provided with a guide cylinder, a guide post is connected to the guide cylinder in a sliding manner, one end of the guide post is connected to the guide cylinder in a sliding manner, the other end of the guide post is fixedly connected to the damping plate II, a reset spring is fixedly arranged in the guide cylinder, one end of the reset spring is fixedly connected to the bottom of the guide cylinder, and the other end of the reset spring is fixedly connected to the end of the guide post.
Through adopting above-mentioned technical scheme, after shock wave made the shock attenuation board take place to deform, promote the guide post and slide and compress reset spring in the guide cylinder, reset spring's deformation can consume the vibration wave, and reset spring's tension can make a shock attenuation board reset.
Optionally, a damping block is fixedly arranged on one side of the damping plate close to the blasting area, and a clamping groove is formed in the position, corresponding to the limiting groove, of the tunnel wall.
Through adopting above-mentioned technical scheme, the draw-in groove is used for joint snubber block to fix a position the damping plate one, the installation and the location of the damping plate one of being convenient for.
Optionally, a damping cavity is formed in the damping plate I, and damping materials are filled in the damping cavity.
Through adopting above-mentioned technical scheme, after the ripples that shakes transmits to the snubber block, the shock-absorbing material in the snubber block can extrude and take place deformation to can consume the ripples that shakes, reduce the ripples that shakes and transmit between to the damping plate one.
Optionally, a positioning ring is fixedly arranged on one side, far away from the first damping plate, of the second damping plate, and a positioning groove for the positioning ring to be inserted is formed in the tunnel wall body.
Through adopting above-mentioned technical scheme, during the installation, the holding ring is pegged graft in the constant head tank, is convenient for fix shock attenuation board two, and then can install shock attenuation board one and shock attenuation board two in the spacing inslot.
Optionally, a buffer column is inserted into the positioning ring, and the buffer column is used for connecting all the positioning rings in series.
Through adopting above-mentioned technical scheme, when installing shock attenuation board two, make the holding ring cover locate on the cushion column, the installation of shock attenuation board one and shock attenuation board two of can being convenient for.
Optionally, a plurality of inserting grooves are formed in one side of the second damping plate, a plurality of inserting blocks are fixedly arranged on the other side of the second damping plate, and when the inserting column of one of the second damping plates is inserted into the inserting groove of the other second damping plate.
Through adopting above-mentioned technical scheme, can establish ties two damping plates, the equipment between two adjacent damping plates of buffering post can be convenient for, peg graft each other between two damping plates, can be convenient for install damper in the spacing inslot.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the first damping plate and the second damping plate are arranged on the wall body of the tunnel, the first damping plate is close to the blasting area, the second damping plate is far away from the blasting area, the first damping plate and the second damping plate are both elastic steel plates, two damping springs are fixedly arranged between the first damping plate and the second damping plate, two ends of each damping spring are fixedly arranged on the first damping plate and the second damping plate respectively, after blasting, shock waves are transmitted to the first damping plate, the first damping plate compresses the damping springs, the damping springs deform to consume the shock waves, the first damping plate and the second damping plate are elastic steel plates, the transmission of the shock waves to the wall body around the tunnel is reduced, and the impact of the shock waves to the wall body around the tunnel is reduced;
2. the guide cylinder is fixedly arranged on one side, close to the damping plate I, of the damping plate II, the guide cylinder is connected with the guide post in a sliding mode, one end of the guide post is connected into the guide cylinder in a sliding mode, the other end of the guide post is fixedly connected onto the damping plate II, the reset spring is fixedly arranged in the guide cylinder, one end of the reset spring is fixedly connected to the bottom of the guide cylinder, the other end of the reset spring is fixedly connected to the end portion of the guide post, when the damping plate is deformed by shock waves, the guide post is pushed to slide in the guide cylinder and compress the reset spring, the vibration waves can be consumed by deformation of the reset spring, and the damping plate I can be reset by tension of the reset spring;
3. through having set firmly the snubber block in one side that the snubber plate is close to the blasting district, the draw-in groove has been seted up to the position that the tunnel wall body corresponds spacing groove, has seted up the shock attenuation chamber in the snubber plate, and the shock attenuation intracavity is filled has shock-absorbing material, and after the ripples of shaking transmit to the snubber block, shock-absorbing material in the snubber block can extrude and take place deformation to can consume the ripples of shaking, reduce the ripples of shaking and transmit between the snubber plate one.
Drawings
Fig. 1 is a schematic view of the overall structure of the embodiment.
Fig. 2 is a schematic structural view of a tunnel wall and a shock-absorbing mechanism.
Fig. 3 is an exploded view of the shock absorbing mechanism.
Fig. 4 is a sectional view of the damper mechanism.
Description of reference numerals: 1. walls around the tunnel; 2. a tunnel wall; 21. a blasting zone; 22. a limiting groove; 23. a card slot; 24. positioning a groove; 3. a damping mechanism; 31. a shock absorbing assembly; 311. a first damping plate; 312. a second damping plate; 3121. inserting grooves; 3122. an insertion block; 313. a damping spring; 314. a guide cylinder; 315. a guide post; 316. a return spring; 32. a damper block; 321. a damping chamber; 322. a shock absorbing material; 33. a positioning ring; 331. and (7) buffering the column.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses tunnel blasting construction damping device. Referring to fig. 1, tunnel blasting construction damping device is including being used for installing in tunnel wall 2 near the damping mechanism 3 of wall body 1 around the tunnel, and tunnel wall 2 of here is the wall body of waiting to explode, and wall body 1 is the outer wall body of tunnel wall 2 around the tunnel, and damping mechanism 3 is a plurality ofly, and tunnel wall 2 semicircular in shape, and damping mechanism 3 evenly distributed is in the position at tunnel wall 2 edge, and the middle part of tunnel wall 2 is blasting district 21.
Referring to fig. 1 and 2, a limiting groove 22 is formed in a position, close to the edge, of the tunnel wall 2, and the limiting groove 22 is used for installing the damping mechanism 3.
Referring to fig. 2 and 3, the damper mechanism 3 includes a plurality of sets of damper assemblies 31 having the same structure, and the damper assemblies 31 are connected to form the damper mechanism 3. The damping assembly 31 comprises a first damping plate 311 and a second damping plate 312, the first damping plate 311 is close to the blasting area 21, the second damping plate 312 is far away from the blasting area 21, the first damping plate 311 and the second damping plate 312 are both elastic steel plates, the first damping plate 311 and the second damping plate 312 are both arc-shaped plates, two damping springs 313 are fixedly arranged between the first damping plate 311 and the second damping plate 312, and two ends of each damping spring 313 are fixedly arranged on the first damping plate 311 and the second damping plate 312 respectively; after blasting, the shock wave is transmitted to the damping plate I311, the damping plate I311 compresses the damping spring 313, and the damping spring 313 deforms, so that the shock wave can be consumed, the transmission of the shock wave to the wall body 1 around the tunnel is reduced, and the impact of the shock wave to the wall body 1 around the tunnel is reduced.
Referring to fig. 3 and 4, a guide cylinder 314 is fixedly arranged on one side of the second damping plate 312 close to the first damping plate 311, a guide column 315 is connected in the guide cylinder 314 in a sliding manner, one end of the guide column 315 is connected in the guide cylinder 314 in a sliding manner, the other end of the guide column 315 is fixedly connected to the second damping plate 312, a return spring 316 is fixedly arranged in the guide cylinder 314, one end of the return spring 316 is fixedly connected to the bottom in the guide cylinder 314, and the other end of the return spring is fixedly connected to the end part of the guide column 315; when the shock wave deforms the first damper plate 311, the guide post 315 is pushed to slide in the guide cylinder 314 and compress the return spring 316, the deformation of the return spring 316 can consume the shock wave, and the tension of the return spring 316 can reset the first damper plate 311.
A damping block 32 is fixedly arranged on one side, close to the blasting area 21, of the damping plate I311, a clamping groove 23 is formed in the position, corresponding to the limiting groove 22, of the tunnel wall body 2, and the clamping groove 23 is used for clamping the damping block 32 so as to position the damping plate I311; a damping cavity 321 is formed in the damping plate I311, and damping materials 322 are filled in the damping cavity 321; after the vibration wave is transmitted to the damper 32, the damping material 322 in the damper 32 is squeezed to deform, so that the vibration wave can be consumed, and the transmission of the vibration wave to the first damper 311 is reduced.
One side that the damping plate 311 was kept away from to damping plate two 312 has set firmly holding ring 33, and holding ring 33 is located damping plate two 312 and keeps away from the middle part of damping plate one 311, has seted up constant head tank 24 on the tunnel wall body 2, and constant head tank 24 is used for supplying holding ring 33 to peg graft, and during the installation, holding ring 33 pegs graft in constant head tank 24, is convenient for fix damping plate two 312, and then can install damping plate one 311 and damping plate two 312 in spacing groove 22. The positioning ring 33 is internally inserted with a buffer column 331, the buffer column 331 is used for connecting all the positioning rings 33 in series, and when the first damping plate 311 and the second damping plate 312 are installed, the positioning rings 33 are sleeved on the buffer column 331, so that the installation of the first damping plate 311 and the second damping plate 312 can be facilitated.
Referring to fig. 2 and 3, a plurality of inserting grooves 3121 are formed in one side of the second damping plates 312, a plurality of inserting blocks 3122 are fixedly disposed on the other side of the second damping plates 312, when the inserting column of one of the second damping plates 312 is inserted into the inserting groove 3121 of the other second damping plate 312, the second damping plates 312 can be connected in series, the buffer column 331 can facilitate assembly between the adjacent second damping plates 312, the second damping plates 312 are inserted into each other, and accordingly the damping mechanism 3 can be mounted in the limiting groove 22.
The implementation principle of the damping device for tunnel blasting construction in the embodiment of the application is as follows: the limiting groove 22 is formed in the tunnel wall body 2, the clamping groove 23 and the positioning groove 24 which are communicated with the limiting groove 22 are formed at the same time, then the first damping plate 311 and the second damping plate 312 are installed in the limiting groove 22, the damping block 32 is installed in the clamping groove 23, and the positioning ring 33 is clamped in the positioning groove 24. During the blasting, the shock-absorbing material 322 in the snubber block 32 can extrude and take place deformation to can consume the ripples that shakes, reduce the ripples that shakes and transmit between to a damping plate 311, damping plate 311 takes place deformation, compression damping spring 313 and reset spring 316, damping spring 313 reset spring 316's deformation can consume the ripples that shakes, and reset spring 316's tension can make a damping plate 311 reset, further reduces the ripples that shakes and transmits to wall body 1 around the tunnel.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (7)
1. The utility model provides a tunnel blasting construction damping device which characterized in that:
comprises a plurality of damping mechanisms (3) which are used for being arranged on a tunnel wall body (2) and close to a tunnel peripheral wall body (1);
the damping mechanism (3) comprises a plurality of damping components (31) with the same structure;
spacing groove (22) have been seted up in tunnel wall body (2), damper block (31) are including installing damping plate (311) and damping plate two (312) in spacing groove (22), and damping plate (311) are close to blast zone (21), and blasting zone (21) are kept away from to damping plate two (312), and damping plate (311) and damping plate two (312) are elastic steel plate, have set firmly two damping spring (313) between damping plate (311) and damping plate two (312), and the both ends of damping spring (313) set firmly respectively on damping plate (311) and damping plate two (312).
2. The damping device for tunnel blasting construction according to claim 1, wherein: one side of the second damping plate (312) close to the first damping plate (311) is fixedly provided with a guide cylinder (314), the guide cylinder (314) is connected with a guide post (315) in a sliding manner, one end of the guide post (315) is connected in the guide cylinder (314) in a sliding manner, the other end of the guide post is fixedly connected to the second damping plate (312), a reset spring (316) is fixedly arranged in the guide cylinder (314), one end of the reset spring (316) is fixedly connected to the bottom of the guide cylinder (314), and the other end of the reset spring is fixedly connected to the end part of the guide post (315).
3. The damping device for tunnel blasting construction according to claim 1, wherein: one side of the damping plate I (311) close to the blasting area (21) is fixedly provided with a damping block (32), and the position of the tunnel wall body (2) corresponding to the limiting groove (22) is provided with a clamping groove (23).
4. The damping device for tunnel blasting construction according to claim 3, wherein: a damping cavity (321) is formed in the damping plate I (311), and damping materials (322) are filled in the damping cavity (321).
5. The damping device for tunnel blasting construction according to claim 1, wherein: and one side of the second damping plate (312), which is far away from the first damping plate (311), is fixedly provided with a positioning ring (33), and the tunnel wall body (2) is provided with a positioning groove (24) for the positioning ring (33) to be spliced.
6. The damping device for tunnel blasting construction according to claim 5, wherein: a buffer column (331) is inserted in the positioning ring (33), and the buffer column (331) is used for connecting all the positioning rings (33) in series.
7. The damping device for tunnel blasting construction according to claim 1, wherein: a plurality of inserting grooves (3121) are formed in one side of the second damping plates (312), a plurality of inserting blocks (3122) are fixedly arranged on the other side, and when the inserting column of one of the second damping plates (312) is inserted into the inserting groove (3121) of the other second damping plate (312).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121865813.9U CN215373731U (en) | 2021-08-10 | 2021-08-10 | Damping device for tunnel blasting construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121865813.9U CN215373731U (en) | 2021-08-10 | 2021-08-10 | Damping device for tunnel blasting construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215373731U true CN215373731U (en) | 2021-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121865813.9U Active CN215373731U (en) | 2021-08-10 | 2021-08-10 | Damping device for tunnel blasting construction |
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| Country | Link |
|---|---|
| CN (1) | CN215373731U (en) |
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2021
- 2021-08-10 CN CN202121865813.9U patent/CN215373731U/en active Active
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