CN212985258U - Temporary supporting structure for tunnel construction - Google Patents
Temporary supporting structure for tunnel construction Download PDFInfo
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- CN212985258U CN212985258U CN202021801623.6U CN202021801623U CN212985258U CN 212985258 U CN212985258 U CN 212985258U CN 202021801623 U CN202021801623 U CN 202021801623U CN 212985258 U CN212985258 U CN 212985258U
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- fixedly connected
- steel sheet
- shock attenuation
- top surface
- crossbeam board
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Abstract
The utility model relates to a supporting construction technical field, especially a tunnel construction temporary support structure, comprising a base plate, the bottom plate is total two, two a plurality of hydraulic ejector pins of the equal fixedly connected with of top surface of bottom plate, it is a plurality of the top surface fixedly connected with crossbeam board of hydraulic ejector pin, the central department sliding connection of crossbeam board top surface has the guide bar, damping spring has been cup jointed to the outer wall of guide bar, the top fixedly connected with shock attenuation steel sheet of guide bar. The utility model has the advantages that: through having set up the crossbeam board, the central sliding connection of department of crossbeam board top surface has the guide bar, damping spring has been cup jointed to the outer wall of guide bar, the top fixedly connected with shock attenuation steel sheet of guide bar, a plurality of longitudinal support bars of top surface fixedly connected with of shock attenuation steel sheet, it is a plurality of the top surface fixedly connected with protection top of longitudinal support bar can make the earthwork that falls absorb the impact force through the elasticity of damping spring and shock attenuation steel sheet, improves the security.
Description
Technical Field
The utility model relates to a supporting construction technical field, especially a tunnel construction temporary support structure.
Background
Along with the continuous development of tunnel engineering, large-span tunnels are more and more, and the surrounding rock instability that the large-section tunnel once only excavates and can cause working face exposure time overlength, load release scheduling problem arouses has increaseed the tunnel construction risk, therefore the thought of tunnel piecemeal excavation is flourishing gradually. Under the geological condition of poor surrounding rock, more and more large-span tunnel construction is adopted, and a construction method of excavation in blocks and temporary support is adopted.
However, the current temporary supporting structures have the following problems in use:
current supporting construction is mostly rigid connection, and when the top took place to fall, huge impact force can damage the bracing piece, leads to supporting construction to collapse, takes place danger.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's shortcoming, provide a tunnel construction temporary support structure, effectively solved prior art not enough.
The purpose of the utility model is realized through the following technical scheme: a temporary supporting structure for tunnel construction comprises bottom plates, wherein the number of the bottom plates is two, a plurality of hydraulic ejector rods are fixedly connected to the top surfaces of the two bottom plates, a cross beam plate is fixedly connected to the top surfaces of the hydraulic ejector rods, a guide rod is slidably connected to the center of the top surface of the cross beam plate, a damping spring is sleeved on the outer wall of the guide rod, a damping steel sheet is fixedly connected to the top end of the guide rod, a plurality of longitudinal supporting bars are fixedly connected to the top surface of the damping steel sheet, and a protective top is fixedly connected to the top surfaces of the longitudinal supporting bars;
both sides of the top surface of the cross beam plate are fixedly connected with threaded cylinders, the inner walls of the threaded cylinders are in threaded connection with screws, the bottoms of the screws are rotatably connected with connecting blocks, both sides of the connecting blocks are fixedly connected with hooks, the screws penetrate through the bottoms of the connecting blocks, and one ends of the screw penetrating through the connecting blocks are fixedly connected with hand wheels;
the damping steel sheet is arched, two ends of the damping steel sheet penetrate through two sides of the cross beam plate, and the damping steel sheet is connected with the cross beam plate in a sliding mode through penetrating through the cross beam plate.
Optionally, the bottom surface of the two bottom plates is fixedly connected with a plurality of universal wheels, the two side surfaces of the two bottom plates are fixedly connected with a width indicating lamp belt, and the positions of the universal wheels correspond to the positions of the hydraulic push rods respectively.
Optionally, a plurality of one side fixedly connected with strengthening rib that the hydraulic ram top is close to the crossbeam board, the shape of strengthening rib is triangle-shaped, the right-angle side at strengthening rib top and the bottom surface fixed connection of crossbeam board, the right-angle side and the hydraulic ram fixed connection of strengthening rib side.
Optionally, the damping spring is located between the top surface of the cross beam plate and the bottom surface of the damping steel sheet, the guide rod is located at the center of the bottom surface of the damping steel sheet, a check block is fixedly connected to one end, far away from the damping steel sheet, of the guide rod, and the diameter of the check block is larger than that of the guide rod.
Optionally, the connecting block and the screw rod are in interference fit, the height of the hooks on two sides of the connecting block is different, and the length of the screw rod is equal to the depth of the inner wall of the threaded cylinder.
Optionally, the damping steel sheet is made of spring steel, two ends of the damping steel sheet are located on the outer side of the hydraulic ejector rod, two ends of the damping steel sheet are fixedly connected with limiting flanges, and the size of each limiting flange is larger than that of the cross section of the damping steel sheet.
The utility model has the advantages of it is following:
1. this temporary supporting structure of tunnel construction through having set up the crossbeam board, the sliding connection has the guide bar at the center of crossbeam board top surface, damping spring has been cup jointed to the outer wall of guide bar, the top fixedly connected with shock attenuation steel sheet of guide bar, a plurality of longitudinal support bars of top surface fixedly connected with of shock attenuation steel sheet, it is a plurality of the top surface fixedly connected with protection top of longitudinal support bar, the shock attenuation steel sheet is the arch, the both sides of crossbeam board are run through at the both ends of shock attenuation steel sheet, the shock attenuation steel sheet is through running through crossbeam board and crossbeam board sliding connection, can make the earthwork that falls pass through damping spring and the elastic absorption impact force of shock attenuation steel sheet, reduces the impact force to hydraulic ram, improves the security.
2. This interim supporting construction of tunnel construction has the screw rod through having set up a screw thread section of thick bamboo, the inner wall threaded connection of a screw thread section of thick bamboo has the screw rod, the bottom of screw rod is rotated and is connected with the connecting block, the equal fixedly connected with couple in both sides of connecting block, the bottom of screw rod through connection piece, the one end fixedly connected with hand wheel of screw rod through connection piece can make the user hang through the couple and establish the cable, makes things convenient for the cable to lay, and the couple can rotate the height-adjusting through the screw rod simultaneously, improves the practicality.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic front view of the structure of the present invention;
fig. 3 is a schematic structural view of the cross beam plate of the present invention.
In the figure: 1-bottom plate, 2-width lamp belt, 3-universal wheel, 4-hydraulic top rod, 5-crossbeam plate, 6-guide rod, 7-damping spring, 8-damping steel sheet, 9-protective top, 10-longitudinal support bar, 11-threaded cylinder, 12-threaded rod, 13-connecting block, 14-hook and 15-reinforcing rib.
Detailed Description
The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.
As shown in fig. 1 to 3, a temporary supporting structure for tunnel construction includes two bottom plates 1, a plurality of hydraulic ejector rods 4 fixedly connected to top surfaces of the two bottom plates 1, a cross beam plate 5 fixedly connected to top surfaces of the hydraulic ejector rods 4, a guide rod 6 slidably connected to a center of a top surface of the cross beam plate 5, a damping spring 7 sleeved on an outer wall of the guide rod 6, a damping steel sheet 8 fixedly connected to a top end of the guide rod 6, a plurality of longitudinal support bars 10 fixedly connected to a top surface of the damping steel sheet 8, and a protective top 9 fixedly connected to top surfaces of the longitudinal support bars 10;
both sides of the top surface of the beam plate 5 are fixedly connected with threaded cylinders 11, the inner walls of the threaded cylinders 11 are in threaded connection with screw rods 12, the bottoms of the screw rods 12 are rotatably connected with connecting blocks 13, both sides of the connecting blocks 13 are fixedly connected with hooks 14, the screw rods 12 penetrate through the bottoms of the connecting blocks 13, and one ends of the screw rods 12 penetrating through the connecting blocks 13 are fixedly connected with hand wheels;
the shock attenuation steel sheet 8 is the arch, and the both ends of shock attenuation steel sheet 8 run through the both sides of crossbeam board 5, and shock attenuation steel sheet 8 is through running through crossbeam board 5 and crossbeam board 5 sliding connection.
As an optional technical solution of the utility model:
the equal fixedly connected with of bottom surface of two bottom plates 1 has a plurality of universal wheels 3, and the equal fixedly connected with of both sides face of two bottom plates 1 shows wide lamp area 2, through wide lamp area 2, can be striking see out the interval of two bottom plates 1, prevents to hit, and the position of a plurality of universal wheels 3 is corresponding with the position of a plurality of hydraulic ram 4 respectively, and the pressure that hydraulic ram 4 bore like this can directly transmit ground through universal wheel 3, prevents to crush bottom plate 1.
As an optional technical solution of the utility model:
one side fixedly connected with strengthening rib 15 that a plurality of hydraulic ram 4 tops are close to crossbeam board 5, and the shape of strengthening rib 15 is triangle-shaped, the right-angle side at 15 tops of strengthening rib and the bottom surface fixed connection of crossbeam board 5, the right-angle side and the hydraulic ram 4 fixed connection of 15 sides of strengthening rib through the side of 15 dispersion pressure of strengthening rib to hydraulic ram 4, can reduce stress concentration, improve structural stability.
As an optional technical solution of the utility model:
damping spring 7 is located between 5 top surfaces of crossbeam board and the 8 bottom surfaces of shock attenuation steel sheet, and the one end fixedly connected with dog that shock attenuation steel sheet 8 was kept away from to guide bar 6 does, and the diameter of dog is greater than the diameter of guide bar 6, can prevent through the dog that guide bar 6 from deviating from crossbeam board 5.
As an optional technical solution of the utility model:
connecting block 13 and screw rod 12 adopt interference fit, and the couple 14's of connecting block 13 both sides highly different, the length of screw rod 12 equals with the degree of depth of a screw thread section of thick bamboo 11 inner wall, and the user hangs through couple 14 and establishes the cable, makes things convenient for cable laying, and couple 14 can rotate height-adjusting through screw rod 12 simultaneously, improves the practicality.
As an optional technical solution of the utility model:
the material of shock attenuation steel sheet 8 is the spring steel, and the both ends of shock attenuation steel sheet 8 are located the outside of hydraulic ram 4, and the equal fixedly connected with limit flange in both ends of shock attenuation steel sheet 8, and limit flange's size is greater than the size in shock attenuation steel sheet 8 cross-section, through limit flange, can prevent that shock attenuation steel sheet 8 from deviating from crossbeam board 5.
The working process of the utility model is as follows: when a user uses the hydraulic lifting device, the cross beam plate 5 is arranged, the guide rod 6 is connected to the center of the top surface of the cross beam plate 5 in a sliding mode, the damping spring 7 is sleeved on the outer wall of the guide rod 6, the damping steel sheet 8 is fixedly connected to the top end of the guide rod 6, the plurality of longitudinal support bars 10 are fixedly connected to the top surface of the damping steel sheet 8, the protective top 9 is fixedly connected to the top surfaces of the plurality of longitudinal support bars 10, the damping steel sheet 8 is arched, two ends of the damping steel sheet 8 penetrate through two sides of the cross beam plate 5, the damping steel sheet 8 is connected with the cross beam plate 5 in a sliding mode through the cross beam plate 5, falling earthwork can absorb impact force through the elasticity of the damping spring 7 and the damping steel sheet 8, the impact force on the hydraulic jacking rod 4 is reduced, safety is improved, the threaded cylinder 11 is arranged, the screw rod 12 is connected to, the equal fixedly connected with couple 14 in both sides of connecting block 13, screw rod 12 through connection piece 13's bottom, screw rod 12 through connection piece 13's one end fixedly connected with hand wheel can make the user hang through couple 14 and establish the cable, makes things convenient for cable laying, and couple 14 can rotate height-adjusting through screw rod 12 simultaneously, improves the practicality.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a tunnel construction temporary support structure which characterized in that: the damping device comprises a bottom plate (1), the number of the bottom plate (1) is two, a plurality of hydraulic ejector rods (4) are fixedly connected to the top surfaces of the two bottom plates (1), a cross beam plate (5) is fixedly connected to the top surfaces of the hydraulic ejector rods (4), a guide rod (6) is slidably connected to the center of the top surface of the cross beam plate (5), a damping spring (7) is sleeved on the outer wall of the guide rod (6), a damping steel sheet (8) is fixedly connected to the top end of the guide rod (6), a plurality of longitudinal support bars (10) are fixedly connected to the top surface of the damping steel sheet (8), and a protective top (9) is fixedly connected to the top surfaces of the longitudinal support bars (10);
both sides of the top surface of the cross beam plate (5) are fixedly connected with threaded cylinders (11), the inner wall of each threaded cylinder (11) is in threaded connection with a screw rod (12), the bottom of each screw rod (12) is rotatably connected with a connecting block (13), both sides of each connecting block (13) are fixedly connected with hooks (14), each screw rod (12) penetrates through the bottom of each connecting block (13), and one end of each screw rod (12) penetrating through each connecting block (13) is fixedly connected with a hand wheel;
shock attenuation steel sheet (8) are the arch, the both ends of shock attenuation steel sheet (8) run through the both sides of crossbeam board (5), shock attenuation steel sheet (8) are through running through crossbeam board (5) and crossbeam board (5) sliding connection.
2. The temporary supporting structure for tunnel construction according to claim 1, wherein: the bottom surface of two bottom plates (1) is fixedly connected with a plurality of universal wheels (3), two the both sides of bottom plates (1) are fixedly connected with a width display lamp belt (2), and the position of a plurality of universal wheels (3) corresponds with the position of a plurality of hydraulic ejector pins (4) respectively.
3. The temporary supporting structure for tunnel construction according to claim 1, wherein: a plurality of one side fixedly connected with strengthening rib (15) that hydraulic push rod (4) top is close to crossbeam board (5), the shape of strengthening rib (15) is triangle-shaped, the right-angle side at strengthening rib (15) top and the bottom surface fixed connection of crossbeam board (5), the right-angle side and hydraulic push rod (4) fixed connection of strengthening rib (15) side.
4. The temporary supporting structure for tunnel construction according to claim 1, wherein: damping spring (7) are located between crossbeam board (5) top surface and shock attenuation steel sheet (8) bottom surface, the one end fixedly connected with dog that shock attenuation steel sheet (8) were kept away from in guide bar (6), the diameter of dog is greater than the diameter of guide bar (6).
5. The temporary supporting structure for tunnel construction according to claim 1, wherein: connecting block (13) and screw rod (12) adopt interference fit, the height difference of couple (14) of connecting block (13) both sides, the length of screw rod (12) equals with the degree of depth of screw thread section of thick bamboo (11) inner wall.
6. The temporary supporting structure for tunnel construction according to claim 1, wherein: the material of shock attenuation steel sheet (8) is the spring steel, the both ends of shock attenuation steel sheet (8) are located the outside of hydraulic ram (4), the equal fixedly connected with limit flange in both ends of shock attenuation steel sheet (8), limit flange's size is greater than the size in shock attenuation steel sheet (8) cross-section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021801623.6U CN212985258U (en) | 2020-08-25 | 2020-08-25 | Temporary supporting structure for tunnel construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021801623.6U CN212985258U (en) | 2020-08-25 | 2020-08-25 | Temporary supporting structure for tunnel construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212985258U true CN212985258U (en) | 2021-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021801623.6U Active CN212985258U (en) | 2020-08-25 | 2020-08-25 | Temporary supporting structure for tunnel construction |
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| CN (1) | CN212985258U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404523A (en) * | 2021-07-05 | 2021-09-17 | 淮北市平远软岩支护工程技术有限公司 | Rock burst monitoring system based on pressure relief blasting |
| CN114046161A (en) * | 2021-12-09 | 2022-02-15 | 中铁十六局集团有限公司 | Safety maintenance shock absorption protection system for tunnel |
-
2020
- 2020-08-25 CN CN202021801623.6U patent/CN212985258U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404523A (en) * | 2021-07-05 | 2021-09-17 | 淮北市平远软岩支护工程技术有限公司 | Rock burst monitoring system based on pressure relief blasting |
| CN113404523B (en) * | 2021-07-05 | 2023-11-10 | 淮北市平远软岩支护工程技术有限公司 | Rock burst monitoring system based on pressure relief blasting |
| CN114046161A (en) * | 2021-12-09 | 2022-02-15 | 中铁十六局集团有限公司 | Safety maintenance shock absorption protection system for tunnel |
| CN114046161B (en) * | 2021-12-09 | 2023-05-16 | 中铁十六局集团有限公司 | A safety maintenance shock attenuation protection system for tunnel |
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