Construction device suitable for rapid dewatering of open cut tunnel arch bottom

Abstract

The invention discloses a construction device suitable for rapid dewatering of an open-cut tunnel arch bottom, and particularly relates to the technical field of tunnel dewatering construction. The construction device comprises a sleeve plate, a linkage electric cylinder, a linkage shaft and a multi-face synchronous dredging mechanism; wherein the multi-surface synchronous dredging mechanism comprises a support frame, a two-way screw rod, a speed reducing motor, two sleeving blocks, a linkage strip, a polygonal scraping frame and a polygonal suction pipe, and further comprises two end surface synchronous dredging mechanisms and a sleeve frame, and a displacement interval dredging assembly is arranged on one side of the sleeve frame. The multi-face synchronous dredging mechanism is adopted, and the multi-face synchronous dredging device has the advantages that it is ensured that multiple faces of the outer wall of the polygonal suction pipe can smoothly suck a large amount of accumulated water, large-area non-blocking continuous rainfall drainage can be achieved, and the open-cut tunnel arch bottom rainfall construction efficiency is greatly improved, and therefore the problems that large-area non-blocking continuous rainfall drainage is difficult to achieve; and the precipitation construction efficiency is greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel dewatering construction, and more specifically, to a construction device suitable for rapid dewatering of an open-cut tunnel arch bottom. Background Art

[0002] A construction device suitable for rapid dewatering of the arch bottom of an open-cut tunnel. This device can quickly lower the groundwater level at the tunnel arch bottom, providing a dry working environment for construction, thereby speeding up the construction progress and ensuring construction safety. Lowering the groundwater level can reduce the head difference inside and outside the tunnel, prevent tunnel infiltration and damage, and reduce the risk of tunnel collapse during construction.

[0003] In the existing public documents, the Chinese patent announcement number CN203050780U discloses a pipe jacking dewatering device for tunnel construction in low permeability saturated fine sand formations. The dewatering construction device is connected to an outer buckle pipe connected to a dewatering orifice by welding on the inner side of the pipe wall of the dewatering main pipe. The outer buckle pipe is provided with an inner buckle plug or a one-way valve. A dewatering flower pipe is provided in the soil outside the pipe wall of the dewatering main pipe, and the dewatering flower pipe is connected to the outer buckle pipe through the dewatering orifice. The device solves the problem of poor dewatering effect of traditional tunnel construction technology, and effectively solves the construction difficulties caused by excessive water on the face, shortening the tunnel construction period. However, the device has the following defects.

[0004] During the rapid dewatering construction of the arch bottom of an open-cut tunnel, although the water inside the arch bottom of the open-cut tunnel is extracted and discharged through a pipe connected to the inside of the arch bottom of the open-cut tunnel, during the dewatering discharge process, the pipe mouth sucks water at the end face, which causes silt to be blocked, resulting in a significant decrease in the dewatering discharge efficiency, making it difficult to achieve large-scale unobstructed continuous dewatering, and a significant decrease in the dewatering construction efficiency. Therefore, a construction device suitable for rapid dewatering of the arch bottom of an open-cut tunnel is needed. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides the following technical solutions: a construction device suitable for rapid dewatering of the arch bottom of an open-cut tunnel, comprising a sleeve plate, a linkage electric cylinder and a linkage shaft, wherein the linkage electric cylinder is fixed to the top of the sleeve plate, the linkage shaft is fixed to the output end of the linkage electric cylinder, the outer wall of the linkage shaft is slidably connected to the sleeve plate, and the bottom end of the linkage shaft is provided with a multi-faceted synchronous dredging mechanism; the multi-faceted synchronous dredging mechanism comprises a support frame fixedly arranged at the bottom end of the linkage shaft, and the inner wall of the support frame is rotatably connected with a bidirectional screw, a reduction motor is fixedly installed at one end of the support frame, and the reduction motor The machine is used to drive the bidirectional screw to rotate, and the outer wall of the bidirectional screw is threadedly connected to two socket blocks; the two threads on the outer wall of the bidirectional screw are opposite and symmetrical, and the bottom end of each socket block is fixedly connected to a linkage bar, and the bottom end of each linkage bar is fixedly connected to a polygonal scraper frame, and the inner wall of the polygonal scraper frame is connected to a polygonal suction pipe, and the two polygonal scraper frames are slidably connected to the polygonal suction pipe; one side of the linkage bar is provided with an end-face synchronous dredging mechanism; the top of the support frame and close to the position of the reduction motor is fixedly connected with a sleeve frame, and one side of the sleeve frame is provided with a displacement interval dredging component.

[0006] Preferably, the two sleeve blocks are slidably connected to the support frame, and the two polygonal scraping frames are symmetrically arranged about the middle of the bidirectional screw; the inner walls of the two polygonal scraping frames are smooth surfaces, and the output end of the reduction motor is fixedly connected to the bidirectional screw, and the bidirectional screw is made of stainless steel. A plurality of suction holes are provided on the inner wall of each polygonal straw, and the suction holes are set to be circular. A controller is fixedly installed on one side of the sleeve plate, and a display screen is fixedly connected to one side of the controller. One end of the polygonal straw is fixedly connected to a branch pipe, and the branch pipe is fixedly connected to the sleeve frame, and one end of the branch pipe is fixedly connected to a hose; a drainage pump is fixedly installed on the top of the hose, and the output end of the drainage pump is welded and connected to a drainage pipe, and a mounting block is installed at the bottom of the drainage pump, and the sleeve plate and the drainage pump are fixedly connected to the mounting block, and the inner wall of the mounting block is provided with a plurality of mounting holes.

[0007] When the technical solution is in use, the reduction motor drives the bidirectional screw to rotate forward, the distance between the two socket blocks increases, the linkage bar moves to the left, and the other linkage bar moves to the right. The polygonal scraper frame moves to the left along the multiple surfaces of the outer wall of the polygonal straw, while the other polygonal scraper frame moves to the right along the multiple surfaces of the outer wall of the polygonal straw, which can quickly dredge the sediment adsorbed on the multiple surfaces of the outer wall of the polygonal straw. When the polygonal scraper frame moves to the left and dredges, the bidirectional screw is driven to reverse by the reduction motor, the distance between the two socket blocks increases, and the two socket blocks drive the two linkage bars closer to each other. The polygonal scraper frame moves to the right and slides along the outer wall of the polygonal straw, while the other polygonal scraper frame can move to the left and scrape along the outer wall of the polygonal straw. The sediment on multiple surfaces of the outer wall of the polygonal straw can be cleared.

[0008] Preferably, the synchronous dredging mechanism for both end surfaces comprises an articulated block fixedly arranged on one side of the linkage strip; a connecting shaft is fixedly connected to one side of the inner wall of the articulated block, and a hinge sleeve rod is rotatably connected to the outer wall of the connecting shaft, and a hinge shaft is rotatably connected to the inner wall of the hinge sleeve rod and away from the connecting shaft, and one end of the hinge shaft is fixedly connected to a groove slide; a sliding sleeve block is slidably connected to the outer wall of the groove slide, and a linkage plate is fixedly connected to one side of the sliding sleeve block, and the linkage plate is fixedly connected to the support frame; a connecting frame is fixedly connected to one side of the groove slide, and both of the two linkage strips are slidably connected to the connecting frame, and two half scrapers are fixedly connected to the bottom end of the connecting frame, and a full scraper is fixedly installed at the bottom end of the groove slide. The vertical cross-section shapes of the connecting shaft and the hinge shaft are both circular, and the center point of the connecting shaft is higher than the center point of the hinge shaft.

[0009] When the technical solution is in use, when the linkage bar moves to the left, the hinge block drives the connecting shaft to move to the left, the bottom end of the hinge sleeve drives the hinge shaft to move downward, and the groove slide moves downward along the inner wall of the sliding sleeve. The groove slide drives the full scraper to move downward, and the full scraper can clear the silt accumulated on the left end face of the polygonal straw. The two half scrapers can move downward to clear the right end face of the polygonal straw. When the linkage bar moves to the right, it will drive the hinge block to move right, the connecting shaft drives the top end of the hinge sleeve to move right, the hinge shaft causes the groove slide to move upward, and the full scraper continues to move upward to clear the silt accumulated on the left end face of the polygonal straw. The connecting frame causes the two half scrapers to move upward synchronously, and the two half scrapers can move upward to clear the right end face of the polygonal straw.

[0010] Preferably, the displacement interval dredging component includes a downward moving electric cylinder fixedly arranged on one side of the sleeve frame; the output end of the downward moving electric cylinder is fixedly connected to a downward moving support rod, the bottom end of the downward moving support rod is fixedly installed with an arc frame, and the two bottom ends of the arc frame are fixedly connected with interval support feet, and the arc frame and the sleeve frame are slidingly connected; one side of each of the interval support feet is fixedly connected to a support rod, and one end of each of the support rods is fixedly connected to a linkage support foot, the vertical cross-section of the arc frame is an arc shape, and the interval support feet and the linkage support feet are symmetrically arranged about the support rod.

[0011] When the present technical solution is in use, the downward electric cylinder pushes the downward support rod downward, the arc frame slides downward along the sleeve frame, and the spaced legs move the support rod downward, so that the linkage legs and the spaced legs can have a large vertical spacing with the bottom surface of the polygonal suction pipe. The linkage electric cylinder pushes the linkage shaft downward, and the support frame drives the sleeve frame to move the downward electric cylinder downward synchronously. The downward support rod moves the arc frame downward, and at the same time, the arc frame drives the spaced legs downward, and the two spaced legs contact the bottom surface of the water at the bottom of the open-cut tunnel arch. The support rod drives the linkage legs to move down, and the linkage legs squeeze and contact the bottom surface of the water at the bottom of the open-cut tunnel arch, so that both the linkage legs and the spaced legs can lift the polygonal suction pipe to prevent mud and sand from directly clogging the suction hole at the bottom end of the outer wall of the polygonal suction pipe.

[0012] Technical effects and advantages of the present invention:

[0013] 1. The present invention adopts a multi-faceted synchronous dredging mechanism, starts the reduction motor to drive the bidirectional screw to rotate forward, the linkage bar moves to the left, and the other linkage bar moves to the right, the polygonal scraper frame realizes leftward scraping along the multiple faces of the outer wall of the polygonal straw, and the other polygonal scraper frame realizes rightward scraping along the multiple faces of the outer wall of the polygonal straw, the reduction motor drives the bidirectional screw to reverse, the polygonal scraper frame slides right along the outer wall of the polygonal straw, and the other polygonal scraper frame can scrape left along the outer wall of the polygonal straw, the two polygonal scraper frames can realize dredging operations on multiple faces of the outer wall of the polygonal straw, ensuring that the multiple faces of the outer wall of the polygonal straw can smoothly absorb a large amount of accumulated water, can realize large-scale non-blocking continuous precipitation and discharge, and greatly improve the construction efficiency of precipitation at the bottom of the open-cut tunnel arch.

[0014] 2. The present invention uses a synchronous dredging mechanism at both end faces. The linkage bar moves left, the linkage bar drives the hinge block to move left, the connecting shaft drives the top end of the hinge sleeve rod to move left, the hinge shaft causes the groove slide plate to move downward, and the groove slide plate moves downward along the inner wall of the sliding sleeve block. The full scraper can dredge the silt accumulated on the left end face of the polygonal straw, and the two half scrapers can move downward to dredge the right end face of the polygonal straw. When the linkage bar moves right, it will drive the hinge block to move right, and the scraper will continue to move upward to dredge the silt accumulated on the left end face of the polygonal straw, and the two half scrapers can move upward to dredge the right end face of the polygonal straw. In this way, large-area non-blocking continuous precipitation and discharge can be achieved for the two end faces of the polygonal straw, and the construction efficiency of precipitation at the arch bottom of the open-cut tunnel is greatly improved.

[0015] 3. The present invention uses a displacement interval dredging component, and the downward electric cylinder pushes the downward support rod to move downward, and the downward support rod drives the arc frame to move downward, and the arc frame slides downward along the sleeve frame, and the arc frame can drive the two interval support legs to move downward synchronously, and the linkage support legs and the interval support legs can be in contact with the bottom surface of the polygonal suction pipe, and the linkage electric cylinder pushes the linkage shaft to move downward, and the downward electric cylinder drives the downward support rod to move downward, and the downward support rod causes the arc frame to move downward, and the two interval support legs contact the bottom surface of the water accumulation at the bottom of the open-cut tunnel arch, ensuring that there is an interval dredging distance between the outer wall of the polygonal suction pipe and the bottom surface of the water accumulation at the bottom of the open-cut tunnel arch, so that the silt dredged by the outer wall of the polygonal suction pipe can be quickly discharged downward, so that the polygonal suction pipe can achieve large-area continuous precipitation discharge without blockage, and the construction efficiency of the precipitation at the bottom of the open-cut tunnel arch is greatly improved.

[0016] According to the mutual influence of the above multiple effects, firstly, it is ensured that there is a clearance distance between the outer wall of the polygonal suction pipe and the bottom surface of the water accumulation at the bottom of the open-cut tunnel arch, and secondly, it is ensured that the multiple surfaces of the outer wall of the polygonal suction pipe can smoothly absorb a large amount of accumulated water, and at the same time, the two end surfaces of the polygonal suction pipe can continuously discharge water without blockage. In summary, it is ensured that the multiple surfaces of the outer wall of the polygonal suction pipe and the two end surfaces can smoothly absorb a large amount of accumulated water, and continuous precipitation and discharge of water over a large area without blockage is achieved, and the construction efficiency of the bottom precipitation of the open-cut tunnel arch is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a schematic diagram of the overall structure of a construction device suitable for rapid dewatering of an open-cut tunnel arch bottom.

[0018] Figure 2 It is a schematic diagram of the partial structure of the connection between the support frame and the bidirectional screw rod of the present invention.

[0019] Figure 3 It is a schematic diagram of the local structure of the vertical section of the connection between the support frame and the reduction motor of the present invention.

[0020] Figure 4 It is a schematic diagram of the side structure of the construction device of the present invention suitable for rapid dewatering of the arch bottom of an open-cut tunnel.

[0021] Figure 5 It is a schematic diagram of the partial structure of the connection between the sleeve plate and the mounting block of the present invention.

[0022] Figure 6 It is a schematic diagram of the structure of the construction device of the present invention suitable for rapid dewatering of the arch bottom of an open-cut tunnel.

[0023] Figure 7 It is a schematic diagram of the local structure of the vertical section of the connection between the articulated shaft and the articulated sleeve rod of the present invention.

[0024] Figure 8 It is a schematic diagram of the partial structure of the displacement interval dredging component of the present invention from a front view.

[0025] The accompanying drawings are marked as follows: 1. sleeve plate; 2. linkage electric cylinder; 3. linkage shaft; 4. support frame; 5. bidirectional screw; 6. reduction motor; 7. sleeve block; 8. linkage strip; 9. polygonal scraper frame; 10. polygonal suction pipe; 11. suction hole; 12. controller; 13. display screen; 14. branch pipe; 15. hose; 16. drainage pump; 17. drainage pipe; 18. mounting block; 19. mounting hole; 20. hinge block; 21. hinge sleeve rod; 22. groove slide plate; 23. linkage plate; 24. sliding sleeve block; 25. connecting frame; 26. half scraper; 27. full scraper; 28. connecting shaft; 29. ​​hinge shaft; 30. sleeve frame; 31. lowering electric cylinder; 32. lowering support rod; 33. arc frame; 34. spacer support foot; 35. support rod; 36. linkage support foot. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] As attached Figure 1-8 A construction device suitable for rapid dewatering of the bottom of an open-cut tunnel is shown. The construction device suitable for rapid dewatering of the bottom of an open-cut tunnel is provided with a multi-faceted synchronous dredging mechanism, a dual-end synchronous dredging mechanism, and a displacement interval dredging component. The arrangement of each mechanism and component can ensure that a large amount of accumulated water can be smoothly absorbed through multiple faces of the outer wall of the polygonal suction pipe 10 and the dual-end faces, thereby achieving continuous dewatering and discharge over a large area without blockage, and greatly improving the construction efficiency of the bottom of an open-cut tunnel dewatering. The specific structural arrangement of each mechanism and component is as follows.

[0028] In this embodiment, as shown in the attached Figure 1-5As shown, a multi-faceted synchronous dredging mechanism is provided at the bottom end of the linkage shaft 3; the multi-faceted synchronous dredging mechanism includes a support frame 4 fixedly arranged at the bottom end of the linkage shaft 3, and the inner wall of the support frame 4 is rotatably connected with a bidirectional screw 5, and a reduction motor 6 is fixedly installed at one end of the support frame 4, and the reduction motor 6 is used to drive the bidirectional screw 5 to rotate, and the outer wall of the bidirectional screw 5 is threadedly connected with two socket blocks 7.

[0029] The two threads on the outer wall of the bidirectional screw 5 are opposite and symmetrical. The bottom end of each socket block 7 is fixedly connected to a linkage bar 8, and the bottom end of each linkage bar 8 is fixedly connected to a polygonal scraper frame 9. The inner wall of the polygonal scraper frame 9 is connected to a polygonal suction pipe 10, and the two polygonal scraper frames 9 are slidingly connected to the polygonal suction pipe 10; one side of the linkage bar 8 is provided with an end-face synchronous dredging mechanism; the top of the support frame 4 and close to the position of the reduction motor 6 is fixedly connected with a sleeve frame 30, and one side of the sleeve frame 30 is provided with a displacement interval dredging component.

[0030] In this embodiment, as shown in the attached Figure 1-5 As shown, the inner wall of each polygonal suction pipe 10 is provided with a plurality of suction holes 11, and the suction holes 11 are set to be circular, so that the water accumulated at the bottom of the open-cut tunnel can enter the polygonal suction pipe 10 through the plurality of suction holes 11, and the plurality of suction holes 11 can block the silt on the outer wall of the polygonal suction pipe 10, so as to realize the operation of sucking and filtering the silt. A controller 12 is fixedly installed on one side of the sleeve plate 1, and a display screen 13 is fixedly connected to one side of the controller 12, so that the pushing state of the linkage electric cylinder 2 and the lower moving electric cylinder 31 can be viewed through the display screen on the controller 12, so that the controller 12 starts the lower moving electric cylinder 31 to realize the driving operation of the lower moving electric cylinder 31.

[0031] One end of the polygonal suction pipe 10 is fixedly connected with a branch pipe 14, and the branch pipe 14 is fixedly connected to the sleeve frame 30, and one end of the branch pipe 14 is fixedly connected with a hose 15; a drainage pump 16 is fixedly installed on the top of the hose 15, and the output end of the drainage pump 16 is welded and connected with a drainage pipe 17, and a mounting block 18 is installed on the bottom of the drainage pump 16. The sleeve plate 1 and the drainage pump 16 are fixedly connected to the mounting block 18. The inner wall of the mounting block 18 is provided with a plurality of mounting holes 19, so that the mounting block 18 can be installed at a higher surface position of the platform of the open-cut tunnel by using a pin to penetrate into the interior of the plurality of mounting holes 19. In this way, the mounting block 18 is fixed, and the drainage pump 16 makes the polygonal suction pipe 10 generate negative pressure, and the accumulated water enters the hose 15 along the branch pipe 14, and is poured into the drainage pipe 17 by the hose 15, and is diverted to the external discharge pipe through the drainage pipe 17, so as to realize the operation of external discharge of accumulated water and precipitation.

[0032] In this embodiment, as shown in the attached Figure 6-7As shown, the two end surface synchronous dredging mechanism includes an articulated block 20 fixedly arranged on one side of the linkage bar 8; a connecting shaft 28 is fixedly connected to one side of the inner wall of the articulated block 20, and an articulated sleeve rod 21 is rotatably connected to the outer wall of the connecting shaft 28, and an articulated shaft 29 is rotatably connected to the inner wall of the articulated sleeve rod 21 and away from the connecting shaft 28, and one end of the articulated shaft 29 is fixedly connected to a groove slide plate 22; a sliding sleeve block 24 is slidably connected to the outer wall of the groove slide plate 22, and a linkage plate 23 is fixedly connected to one side of the sliding sleeve block 24, and the linkage plate 23 is fixedly connected to the support frame 4; a connecting frame 25 is fixedly connected to one side of the groove slide plate 22, and both the two linkage bars 8 are slidably connected to the connecting frame 25, and two half scrapers 26 are fixedly connected to the bottom end of the connecting frame 25, and a full scraper 27 is fixedly installed at the bottom end of the groove slide plate 22. The vertical cross-section shape of the connecting shaft 28 and the articulated shaft 29 is circular, and the center point of the connecting shaft 28 is higher than the center point of the articulated shaft 29.

[0033] In this embodiment, as shown in the attached Figure 2-8 As shown, the displacement interval dredging assembly includes a downward electric cylinder 31 fixedly arranged on one side of the sleeve frame 30; the output end of the downward electric cylinder 31 is fixedly connected to a downward support rod 32, the bottom end of the downward support rod 32 is fixedly installed with an arc frame 33, and the two bottom ends of the arc frame 33 are fixedly connected to interval legs 34, and the arc frame 33 and the sleeve frame 30 are slidably connected; one side of each interval leg 34 is fixedly connected to a support rod 35, and one end of each support rod 35 is fixedly connected to a linkage leg 36. The vertical cross-section of the arc frame 33 is an arc shape, and the interval legs 34 and the linkage legs 36 are symmetrically arranged about the support rod 35.

[0034] The working principle of the construction device of the present invention applicable to rapid dewatering of the arch bottom of an open-cut tunnel is as follows:

[0035] First, when installing the present invention, the bolt is first inserted into the plurality of mounting holes 19, and the mounting block 18 can be installed at the higher surface of the platform of the open-cut tunnel, so that the mounting block 18 is fixed. That is, the mounting block 18 supports the sleeve plate 1, and the sleeve plate 1 supports the linkage electric cylinder 2, thereby increasing the stability of the linkage electric cylinder 2, and then the external pipe is docked on the drainage pipe 17, so that the drainage pump 16 can be docked and connected.

[0036] Secondly, when the present invention performs displacement interval dredging, the pushing status of the linkage electric cylinder 2 and the downward moving electric cylinder 31 is checked through the display screen 13 on the controller 12, so that the controller 12 starts the downward moving electric cylinder 31, and the downward moving electric cylinder 31 pushes the downward moving support rod 32 to move downward, and the downward moving support rod 32 drives the arc frame 33 to move downward, and the arc frame 33 slides downward along the sleeve frame 30, and the arc frame 33 can drive the two spaced legs 34 to move downward synchronously, and the spaced legs 34 make the support rod 35 move downward, and the support rod 35 drives the linkage legs 36 to move downward, so that the linkage legs 36 and the spaced legs 34 can have a large vertical spacing with the bottom surface of the polygonal straw 10.

[0037] After the spacing adjustment is completed, the controller 12 starts the linkage electric cylinder 2, which pushes the linkage shaft 3 downward, and the linkage shaft 3 drives the support frame 4 downward, and the support frame 4 drives the sleeve frame 30 to make the downward electric cylinder 31 move downward synchronously. The downward electric cylinder 31 drives the downward support rod 32 downward, and the downward support rod 32 makes the arc frame 33 move downward. At the same time, the arc frame 33 drives the spaced support legs 34 downward, and the spaced support legs 34 make the two spaced support legs 34 move downward, and the two spaced support legs 34 contact the bottom surface of the water at the bottom of the open-cut tunnel arch. At the same time, the sleeve frame 30 drives the branch pipe 14 downward, and the branch pipe 14 makes the polygonal suction pipe 10 move downward, and the polygonal suction pipe 10 enters the water at the bottom of the open-cut tunnel arch. At the same time, the support rod 35 drives the linkage support foot 36 to move downward, and the linkage support foot 36 is pressed and contacted with the bottom surface of the water accumulation at the bottom of the open-cut tunnel arch. In this way, the linkage support foot 36 and the spacing support foot 34 can both lift the polygonal suction pipe 10, ensuring that there is a spacing and dredging distance between the outer wall of the polygonal suction pipe 10 and the bottom surface of the water accumulation at the bottom of the open-cut tunnel arch, thereby preventing mud and sand from directly clogging the suction hole 11 at the bottom end of the outer wall of the polygonal suction pipe 10.

[0038] Then, when the present invention performs precipitation construction, the controller 12 starts the drainage pump 16, and the drainage pump 16 generates negative pressure in the polygonal suction pipe 10, so that the water accumulated at the bottom of the open-cut tunnel can enter the polygonal suction pipe 10 through the multiple suction holes 11, and the multiple suction holes 11 can block the silt on the outer wall of the polygonal suction pipe 10, so that the multiple surfaces of the outer wall of the polygonal suction pipe 10 and the two ends of the polygonal suction pipe 10 can realize large-scale suction of the water accumulated at the bottom of the open-cut tunnel. The accumulated water enters the hose 15 along the branch pipe 14, and is poured into the drainage pipe 17 by the hose 15, and is diverted to the external discharge pipe through the drainage pipe 17. The diversion and external discharge technology is realized through the external discharge pipe, which can realize large-scale rapid precipitation operation of the water accumulated at the bottom of the open-cut tunnel, and at the same time, a large amount of silt will be blocked on the multiple surfaces of the outer wall of the polygonal suction pipe 10, and on the two end surfaces of the polygonal suction pipe 10.

[0039] At the same time, when the present invention performs multi-surface synchronous dredging, the reduction motor 6 is started by the controller 12 to drive the bidirectional screw 5 to rotate forward, and the bidirectional screw 5 drives the two socket blocks 7 to move away from each other under the action of the thread transmission force, and the distance between the two socket blocks 7 becomes larger. The two socket blocks 7 respectively drive the distance between the two linkage bars 8 to increase, the linkage bar 8 moves to the left, and the other linkage bar 8 moves to the right. The linkage bar 8 drives the polygonal scraper frame 9 to move to the left, and the polygonal scraper frame 9 realizes leftward scraping along multiple surfaces of the outer wall of the polygonal straw 10, while the other polygonal scraper frame 9 realizes rightward scraping along multiple surfaces of the outer wall of the polygonal straw 10, which can quickly dredge the mud and sand adsorbed on multiple surfaces of the outer wall of the polygonal straw 10.

[0040] When the polygonal scraper frame 9 is moved to the left and the dredging is completed, the bidirectional screw 5 is driven to reverse through the reduction motor 6, and the bidirectional screw 5 drives the two socket blocks 7 to approach each other under the action of the thread transmission force, and the distance between the two socket blocks 7 becomes larger, and the two socket blocks 7 respectively drive the two linkage bars 8 to approach each other. The two linkage bars 8 respectively drive the two polygonal scraper frames 9 to approach each other, and the polygonal scraper frame 9 slides to the right along the outer wall of the polygonal suction pipe 10, while the other polygonal scraper frame 9 can move to the left and scrape along the outer wall of the polygonal suction pipe 10. The silt on multiple surfaces of the outer wall of the polygonal suction pipe 10 can be cleared. With the continuous forward and reverse reciprocating drive of the reduction motor 6, the two polygonal scraper frames 9 can achieve dredging operations on multiple surfaces of the outer wall of the polygonal suction pipe 10, ensuring that multiple surfaces of the outer wall of the polygonal suction pipe 10 can smoothly absorb a large amount of accumulated water, and the construction efficiency of the arch bottom precipitation of the open-cut tunnel is greatly improved.

[0041] At the same time, when the present invention performs synchronous dredging of both end faces, when the linkage bar 8 moves to the left, the linkage bar 8 drives the hinge block 20 to move to the left, the hinge block 20 drives the connecting shaft 28 to move to the left, the connecting shaft 28 drives the top end of the hinge sleeve rod 21 to move to the left, the bottom end of the hinge sleeve rod 21 drives the hinge shaft 29 to move downward, the hinge shaft 29 makes the groove slide plate 22 move downward, and the groove slide plate 22 moves downward along the inner wall of the sliding sleeve block 24. At the same time, the support frame 4 supports the linkage plate 23, the linkage plate 23 supports the sliding sleeve block 24, the sliding sleeve block 24 guides the groove slide plate 22 to move downward, the groove slide plate 22 drives the full scraper 27 to move downward, and the full scraper 27 can dredge the sediment accumulated on the left end face of the polygonal straw 10. At the same time, the groove slide plate 22 drives the connecting frame 25 to move downward, the connecting frame 25 makes the two half scrapers 26 move downward synchronously, and the two half scrapers 26 can move downward to dredge the right end face of the polygonal straw 10.

[0042] When the linkage bar 8 moves to the right, it will drive the hinge block 20 to move to the right, the hinge block 20 makes the connecting shaft 28 move to the right, the connecting shaft 28 drives the top of the hinge sleeve rod 21 to move to the right, the hinge sleeve rod 21 drives the hinge shaft 29 to move up, the hinge shaft 29 makes the groove slide plate 22 move up, the groove slide plate 22 drives the full scraper 27 to move up, and the full scraper 27 continues to move up and dredge the silt accumulated on the left end face of the polygonal suction pipe 10. At the same time, the groove slide plate 22 drives the connecting frame 25 to move up, and the connecting frame 25 makes the two half scrapers 26 move up synchronously, and the two half scrapers 26 can move up and dredge the right end face of the polygonal suction pipe 10. With the reciprocating movement of the linkage bar 8 to the left and right, the silt accumulated on the two end faces of the polygonal suction pipe 10 can be dredged, ensuring that the multiple suction holes 11 on the two end faces of the polygonal suction pipe 10 can smoothly absorb the accumulated water, the precipitation discharge volume is larger, and the construction efficiency of the open-cut tunnel arch bottom precipitation is greatly improved.

[0043] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A construction device suitable for rapid dewatering of an open-cut tunnel arch bottom, comprising a sleeve plate (1), a linkage electric cylinder (2) and a linkage shaft (3), wherein the linkage electric cylinder (2) is fixed to the top of the sleeve plate (1), the linkage shaft (3) is fixed to the output end of the linkage electric cylinder (2), and the outer wall of the linkage shaft (3) is slidably connected to the sleeve plate (1), characterized in that: The bottom end of the linkage shaft (3) is provided with a multi-faceted synchronous dredging mechanism; The multi-faceted synchronous dredging mechanism comprises a support frame (4) fixedly arranged at the bottom end of the linkage shaft (3), and the inner wall of the support frame (4) is rotatably connected with a bidirectional screw (5), and a reduction motor (6) is fixedly installed at one end of the support frame (4), and the reduction motor (6) is used to drive the bidirectional screw (5) to rotate, and the outer wall of the bidirectional screw (5) is threadedly connected with two sleeve blocks (7); The two threads on the outer wall of the bidirectional screw (5) are opposite and symmetrically arranged, the bottom end of each sleeve block (7) is fixedly connected to a linkage bar (8), the bottom end of each linkage bar (8) is fixedly connected to a polygonal scraping frame (9), the inner wall of the polygonal scraping frame (9) is connected to a polygonal suction pipe (10), and the two polygonal scraping frames (9) are slidably connected to the polygonal suction pipe (10); One side of the linkage strip (8) is provided with a synchronous dredging mechanism at both end surfaces; A sleeve frame (30) is fixedly connected to the top end of the support frame (4) and close to the position of the reduction motor (6), and a displacement interval dredging component is provided on one side of the sleeve frame (30).

2. The construction device suitable for rapid dewatering of the arch bottom of an open-cut tunnel according to claim 1 is characterized in that: The two sleeve blocks (7) are both slidably connected to the support frame (4), and the two polygonal scraper frames (9) are symmetrically arranged about the middle of the bidirectional screw (5); The inner walls of the two polygonal scraping frames (9) are both smooth surfaces.

3. The construction device suitable for rapid dewatering of the arch bottom of an open-cut tunnel according to claim 1 is characterized in that: The output end of the reduction motor (6) is fixedly connected to the bidirectional screw (5), and the bidirectional screw (5) is made of stainless steel.

4. The construction device suitable for rapid dewatering of the arch bottom of an open-cut tunnel according to claim 1, characterized in that: The inner wall of each polygonal straw (10) is provided with a plurality of suction holes (11), and the suction holes (11) are circular in shape.

5. The construction device suitable for rapid dewatering of the arch bottom of an open-cut tunnel according to claim 1 is characterized in that: A controller (12) is fixedly mounted on one side of the sleeve plate (1), and a display screen (13) is fixedly connected to one side of the controller (12).

6. The construction device suitable for rapid dewatering of the arch bottom of an open-cut tunnel according to claim 1, characterized in that: One end of the polygonal suction pipe (10) is fixedly connected to a branch pipe (14), and the branch pipe (14) is fixedly connected to the sleeve frame (30), and one end of the branch pipe (14) is fixedly connected to a hose (15); A drainage pump (16) is fixedly mounted on the top of the hose (15), and a drainage pipe (17) is welded to the output end of the drainage pump (16). A mounting block (18) is mounted on the bottom end of the drainage pump (16). The sleeve plate (1) and the drainage pump (16) are both fixedly connected to the mounting block (18), and a plurality of mounting holes (19) are formed on the inner wall of the mounting block (18).

7. The construction device suitable for rapid dewatering of the arch bottom of an open-cut tunnel according to claim 1, characterized in that: The synchronous dredging mechanism for both end surfaces comprises a hinge block (20) fixedly arranged on one side of the linkage bar (8); A connecting shaft (28) is fixedly connected to one side of the inner wall of the hinge block (20), and a hinge sleeve rod (21) is rotatably connected to the outer wall of the connecting shaft (28); a hinge shaft (29) is rotatably connected to the inner wall of the hinge sleeve rod (21) at a position away from the connecting shaft (28), and one end of the hinge shaft (29) is fixedly connected to a groove slide plate (22); The outer wall of the groove slide plate (22) is slidably connected to a sliding sleeve block (24), and one side of the sliding sleeve block (24) is fixedly connected to a linkage plate (23), and the linkage plate (23) is fixedly connected to the support frame (4); A connecting frame (25) is fixedly connected to one side of the groove slide plate (22), the two linkage bars (8) are slidably connected to the connecting frame (25), two half scrapers (26) are fixedly connected to the bottom end of the connecting frame (25), and a full scraper (27) is fixedly installed at the bottom end of the groove slide plate (22).

8. The construction device suitable for rapid dewatering of the arch bottom of an open-cut tunnel according to claim 7, characterized in that: The vertical cross-sections of the connecting shaft (28) and the hinge shaft (29) are both circular, and the center point of the connecting shaft (28) is higher than the center point of the hinge shaft (29).

9. The construction device suitable for rapid dewatering of the arch bottom of an open-cut tunnel according to claim 1, characterized in that: The displacement interval dredging component comprises a downward moving electric cylinder (31) fixedly arranged on one side of the sleeve frame (30); The output end of the downward moving electric cylinder (31) is fixedly connected to a downward moving support rod (32), the bottom end of the downward moving support rod (32) is fixedly installed with an arc frame (33), and both bottom ends of the arc frame (33) are fixedly connected to spaced support legs (34), and the arc frame (33) is slidably connected to the sleeve frame (30); One side of each of the spaced support legs (34) is fixedly connected to a support rod (35), and one end of each of the support rods (35) is fixedly connected to a linkage support leg (36).

10. The construction device suitable for rapid dewatering of the arch bottom of an open-cut tunnel according to claim 9, characterized in that: The vertical cross-section of the arc frame (33) is in the shape of an arc, and the spaced support legs (34) and the linked support legs (36) are symmetrically arranged with respect to the support rod (35).

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