Tunnel bridge construction pressure grouting device and method of use

Abstract

The present application relates to a kind of tunnel bridge construction with grouting device and use method, to solve the current technical problems that the construction mode of tunnel culvert grouting is difficult and low in construction efficiency, including movable carrier, arch, template mechanism, blocking mechanism and deceleration mechanism;Arch is erected on the carrier, template mechanism is assembled on the arch, wherein, template mechanism is assembled structure, several blocking mechanisms are spaced along the ridge line of arch and are arranged on the template mechanism, so that the template mechanism forms multiple backfill cavities, and the deceleration mechanism is fixedly connected to the blocking mechanism on the carrier.The present application constructs a small grouting device different from shield machine in tunnel grouting construction, uses several blocking mechanisms to open or close the multiple backfill cavities formed by the template mechanism assembly, so that the pouring mold can be arranged flexibly during tunnel construction, and it is also relatively flexible during overall construction and local maintenance, and pouring is convenient and fast.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tunnel bridge construction equipment, in particular to a grouting device for tunnel bridge construction and a use method thereof. BACKGROUND

[0002] The pre-filled aggregate grouting concrete is a kind of concrete formed by pre-filling the coarse aggregate of the concrete into the erected formwork, vibrating as much as possible, and then using a grouting pump to press the cement mortar into the formwork to solidify. This construction method is suitable for the parts where the reinforcement is dense, the embedded parts are complex, and the pouring and tamping are not easy. When the hole chamber lining arch or the steel plate lining backfill concrete is constructed, this method can significantly reduce the work intensity and interference of the work in the warehouse.

[0003] In the construction of tunnels and bridges, a grouting machine is needed to grout the concrete mold to improve the strength of the concrete mold. In the existing process of grouting the concrete mold for tunnel and bridge construction, the mold needs to be arranged in the culvert in advance to form a pouring surface, and then workers inject grout into the assembled mold until the concrete solidifies, and finally the mold is disassembled. The construction cost of large shield machines is high, which is not conducive to low-volume construction. This manual construction method not only has difficulty in arranging the mold in the culvert, but also has low construction efficiency. In view of this, we propose a grouting device for tunnel bridge construction and a use method thereof. SUMMARY

[0004] The present application aims to overcome the shortcomings of the prior art, adapt to the needs of reality, and provide a grouting device for tunnel bridge construction and a use method thereof to solve the technical problems of the current construction method of culvert grouting in tunnels, which has difficulty in arranging the mold and low construction efficiency.

[0005] In order to achieve the purpose of the present application, the technical solution adopted by the present application is as follows: a grouting device for tunnel bridge construction is designed, which comprises a movable carrier, an arch frame, a formwork mechanism, a plugging mechanism and a speed reduction mechanism. The arch frame is erected on the carrier, and the formwork mechanism is assembled on the arch frame. The formwork mechanism is of assembled structure, and a plurality of plugging mechanisms are arranged on the formwork mechanism along the ridge line of the arch frame at equal intervals, so that the formwork mechanism forms a plurality of backfill cavities, and the speed reduction mechanism is fixedly arranged on the carrier and connected with the plugging mechanism.

[0006] Preferably, the arch frame comprises a first threading frame, a second threading frame, a third threading frame and a fourth threading frame; the first threading frame is centrally fixed on the top surface of the carrier, the second threading frame is arranged in two, symmetrically fixed on the top surface of the carrier on both sides of the first threading frame in the axial direction, the third threading frame is arranged in a plurality of, arranged in a matrix structure outside the first threading frame, wherein a plurality of third threading frames form a limiting cavity, and the fourth threading frame is arranged in two, embedded on the formwork mechanism opposite the position of the second threading frame.

[0007] Preferably, the first threading frame, the second threading frame, the limiting cavity and the fourth threading frame gradually increase in size.

[0008] Preferably, the formwork mechanism comprises an arch surface unit and a side wall unit; the arch surface unit is erected above the carrier, and the side wall unit is arranged in two, symmetrically arranged at the bottom ends of the two sides of the arch surface unit; wherein the arch surface unit and the side wall unit are hollow inside to form a backfill cavity, and the two ends of the third threading frame are respectively threaded inside the arch surface unit and the side wall unit along the ridge line of the arch frame, and the two ends of the fourth threading frame are respectively embedded outside the arch surface unit and the side wall unit along the ridge line of the arch frame.

[0009] Preferably, the arch surface unit is a multi-segment arc-shaped lining structure formed by a plurality of first assembly templates, which is perpendicular to the ridge line of the arch frame and has an open outer edge, and each segment of the arc-shaped lining structure has a first blocking opening at both ends along the ridge line of the arch frame; the side wall unit is a straight lining structure formed by a plurality of second assembly templates, which is perpendicular to the ridge line of the arch frame and has an open outer edge, and the straight lining structure has a second blocking opening at the front end corresponding to the first blocking opening, and the tail end is closed; the second blocking opening and the first blocking opening and the adjacent two first blocking openings are gap-fitted to form a blocking cavity, and a plurality of sealing mechanisms are threaded in the blocking cavity.

[0010] Preferably, a one-way valve is threaded on each segment of the arc-shaped lining structure and the straight lining structure.

[0011] Preferably, the plugging mechanism comprises an upper barrier plate, a lower barrier plate, an iris structure, a tooth ring and a driven tooth; the upper barrier plate is arranged at one end of the blocking cavity, and the lower barrier plate is arranged at the other end of the blocking cavity; wherein the gap between the lower barrier plate and the upper barrier plate forms a clutch cavity; the iris structure is arranged at one side of the clutch cavity; wherein the hole formed by the clutch of the iris structure and the through hole on the upper barrier plate and the lower barrier plate form a flow-through cavity; the tooth ring is arranged at the other side of the clutch cavity; wherein the tooth ring is fixedly connected with the rotating disc of the iris structure; the driven tooth is arranged in a plurality of annular equidistant arrangements outside the tooth ring; wherein the plurality of driven teeth are respectively sleeved on the first lead-through frame and the second lead-through frame.

[0012] Preferably, the end of the third lead-through frame penetrates the inner edge of the upper barrier plate, the blade fixing foot of the iris structure and the inner edge of the lower barrier plate in sequence.

[0013] Preferably, the speed reduction mechanism comprises a worm gear reducer and a driving disc, the driving disc is sleeved on the output end of the worm gear reducer, one side of the driven tooth is engagedly connected with the outer edge of the driving disc, and the other side of the driven tooth is engagedly connected with the tooth ring.

[0014] A use method of a pressure grouting device for tunnel bridge construction, comprising the following steps:

[0015] S100, pre-installation, installing the first lead-through frame and the second lead-through frame on a movable carrier in the tunnel, sequentially sleeving a plurality of plugging mechanisms, and penetrating the plurality of plugging mechanisms with the third lead-through frame to form an installation jig; assembling the arch surface unit and the side wall unit on the installation jig to form a formwork mechanism, and embedding and fixing the formwork mechanism with the fourth lead-through frame; and finally loading the speed reduction mechanism engaged with the plurality of plugging mechanisms;

[0016] S200, backfilling concrete:

[0017] In the overall construction of the culvert, the pressure grouting device is moved to the construction site, the plugging mechanism is driven by the speed reduction mechanism to open the flow-through cavity, so that the multiple backfilling cavities are connected with each other, the release agent is uniformly coated on the surface of the plugging mechanism, and then the external pump grouting mechanism is used to inject grout into each one-way valve, so that the backfilling cavities are filled;

[0018] In the partial maintenance of the culvert, the pressure grouting device is moved to the maintenance site, the plugging mechanism is driven by the speed reduction mechanism to close the flow-through cavity, so that the multiple backfilling cavities are independent of each other, the release agent is uniformly coated on the surface of the plugging mechanism, and then the external pump grouting mechanism is used to inject grout into the one-way valve at the maintenance site, so that the backfilling cavity is filled;

[0019] S300, cooling forming, after the backfilling cavity is filled, the arch surface unit and the side wall unit are removed, and the jig is moved to the next working site.

[0020] Compared with the prior art, the present application has the beneficial effects that:

[0021] The present application constructs a small-sized grouting device different from a shield machine to carry out grouting construction in a tunnel, opens or closes a plurality of backfill cavities formed by a formwork mechanism assembled by a plurality of sealing mechanisms, so that the pouring mold can be arranged flexibly during the tunnel construction process, and the overall construction and local maintenance process are also relatively flexible, and pouring is convenient and fast. The present application has compact and reasonable structure design, powerful function, and is beneficial to improve the construction efficiency of the tunnel bridge. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of the present application;

[0023] Figure 2 is a schematic diagram of the arch structure in the present application;

[0024] Figure 3 is a schematic diagram of part of the structure of the present application;

[0025] Figure 4 is a schematic diagram of the split structure of the formwork mechanism in the present application;

[0026] Figure 5 is a schematic diagram of the split structure of the sealing mechanism in the present application;

[0027] In the figure: 1, carrier; 2, arch; 3, formwork mechanism; 4, sealing mechanism; 5, speed reduction mechanism;

[0028] 201, first lead-through frame; 202, second lead-through frame; 203, third lead-through frame; 204, fourth lead-through frame;

[0029] 301, arch surface unit; 302, side wall unit; 303, one-way valve;

[0030] 401, upper barrier plate; 402, lower barrier plate; 403, iris structure; 404, tooth ring; 405, driven tooth;

[0031] 501, worm gear type speed reducer; 502, driving disc. DETAILED DESCRIPTION

[0032] The present application will be further described below in conjunction with the drawings and examples:

[0033] Example 1: A grouting device for tunnel bridge construction, see Figures 1 to 5, including a movable carrier 1, an arch 2, a template mechanism 3, a sealing mechanism 4 and a deceleration mechanism 5; the arch 2 is erected on the carrier 1, and the template mechanism 3 is assembled on the arch 2, wherein the template mechanism 3 is of an assembled structure, a plurality of sealing mechanisms 4 are arranged on the template mechanism 3 along the ridge line of the arch 2 at equal intervals, so that the template mechanism 3 forms a plurality of backfill cavities, and the deceleration mechanism 5 is fixedly arranged on the carrier 1 and connected with the sealing mechanism 4. The small-sized grouting device different from a shield tunneling machine is constructed in the tunnel to perform grouting construction, the plurality of sealing mechanisms 4 are used to open or close the plurality of backfill cavities formed by the template mechanism 3, so that the pouring mold can be arranged flexibly during the tunnel construction, and the pouring is convenient and fast during the overall construction and local maintenance.

[0034] As a preferred embodiment, the arch 2 comprises a first lead-through frame 201, a second lead-through frame 202, a third lead-through frame 203 and a fourth lead-through frame 204; the first lead-through frame 201 is fixedly arranged in the center of the top surface of the carrier 1, the second lead-through frame 202 is arranged in two, and is fixedly arranged on the top surface of the carrier 1 in a symmetrical structure relative to the two sides of the first lead-through frame 201 in the axial direction, the third lead-through frame 203 is arranged in four, and is arranged in a matrix structure outside the first lead-through frame 201, wherein the four third lead-through frames 203 form a limiting cavity, and the fourth lead-through frame 204 is arranged in two and is embedded in the template mechanism 3 relative to the position of the second lead-through frame 202. It is worth noting that the sizes of the first lead-through frame 201, the second lead-through frame 202, the limiting cavity and the fourth lead-through frame 204 gradually increase. The template mechanism 3 and the sealing mechanism 4 are supported by the arch 2.

[0035] An embodiment is shown as Figure 4 For the convenience of understanding the assembled structure of the template mechanism 3, the application further discloses a more specific implementation structure of the template mechanism 3, which comprises an arch surface unit 301 and a side wall unit 302; the arch surface unit 301 is erected above the carrier 1, and the side wall unit 302 is arranged in two and is arranged in a symmetrical structure at the bottom ends of the two sides of the arch surface unit 301; wherein the arch surface unit 301 and the side wall unit 302 are hollow inside to form a backfill cavity, and the third lead-through frame 203 is arranged in the inside of the arch surface unit 301 and the side wall unit 302 along the ridge line of the arch 2 at two ends, and the fourth lead-through frame 204 is embedded in the outside of the arch surface unit 301 and the side wall unit 302 along the ridge line of the arch 2 at two ends.

[0036] Specifically, as Figure 1As shown, the arch surface unit 301 is a multi-segment arc-shaped lining structure assembled from three sets of first assembly templates, forming a three-sided enclosure with an open outer edge perpendicular to the ridge line of the arch frame 2. Each arc-shaped lining structure has a first blocking opening at both ends along the ridge line of the arch frame 2. The side wall unit 302 is a straight-line lining structure assembled from four sets of second assembly templates, forming a four-sided enclosure with an open outer edge perpendicular to the ridge line of the arch frame 2. The straight-line lining structure is closed at the tail end and has a second blocking opening at the head end corresponding to the first blocking opening. The second blocking opening, the first blocking opening, and two adjacent first blocking openings are all clearance-fitted to form a blocking cavity, and several sealing mechanisms 4 are inserted into the blocking cavity. Each arc-shaped lining structure and the straight-line lining structure is fitted with a one-way valve 303 to facilitate the pumping of concrete.

[0037] One implementation example Figure 3 and Figure 4 As shown, to facilitate understanding of how the sealing mechanism 4 opens and closes the multi-segment backfill cavity, this invention also discloses a more specific implementation structure of the sealing mechanism 4. The sealing mechanism 4 includes an upper baffle plate 401, a lower baffle plate 402, an iris structure 403, a toothed ring 404, and a driven tooth 405; the upper baffle plate 401 is arranged at one end of the blocking cavity, and the lower baffle plate 402 is arranged at the other end of the blocking cavity; wherein, the gap between the lower baffle plate 402 and the upper baffle plate 401 forms a clutch cavity; the iris structure 403 is arranged on one side of the clutch cavity, and the iris structure 403 is composed of multiple overlapping arc-shaped thin metal blades, which... The rotating disk rotates, and under the action of the pull rod, it drives the engagement and disengagement of multiple blades on the fixed disk, thereby changing the size of the central circular aperture. This technology is existing technology. Among them, the channel formed by the engagement and disengagement of the iris structure 403 forms a flow cavity with the through holes on the upper baffle plate 401 and the lower baffle plate 402. The toothed ring 404 is arranged on the other side of the engagement and disengagement cavity. The toothed ring 404 is fixedly connected to the rotating disk of the iris structure 403. Several driven teeth 405 are arranged in a ring at equal intervals on the outside of the toothed ring 404. Several driven teeth 405 are respectively sleeved on the first guide frame 201 and the second guide frame 202.

[0038] Specifically, the end of the third guide frame 203 passes through the inner edge of the upper barrier plate 401, the blade fixing foot of the iris structure 403, and the inner edge of the lower barrier plate 402 in sequence.

[0039] In one preferred embodiment, the reduction mechanism 5 includes a worm gear reducer 501 and a drive disc 502. The drive disc 502 is sleeved on the output end of the worm gear reducer 501. One side of the driven gear 405 meshes with the outer edge of the drive disc 502, and the other side of the driven gear 405 meshes with the gear ring 404. The worm gear reducer 501 has a self-locking effect, which is beneficial to the stability of power output.

[0040] Example 2: A method for using a grouting device for tunnel and bridge construction, comprising the following steps:

[0041] S100, pre-installation, install the first and second lead-through frames 201 and 202 on the movable carrier 1 in the tunnel, sequentially assemble several blocking mechanisms 4, and use the third lead-through frame 203 to pass through the several blocking mechanisms 4 to form an installation jig; assemble the arch surface unit 301 and the side wall unit 302 on the installation jig to form the formwork mechanism 3, and use the fourth lead-through frame 204 to embed and fix the formwork mechanism 3; finally, install the speed reduction mechanism 5 engaged with the several blocking mechanisms 4;

[0042] S200, backfilling concrete:

[0043] In the overall construction of the culvert, the grouting device is moved to the construction site, the blocking mechanism 4 is driven by the speed reduction mechanism 5 to open the flow-through cavity, so that the multiple backfilling cavities are connected with each other, the release agent is uniformly coated on the surface of the blocking mechanism 4, and then the external pump grouting mechanism is used to inject grout into each one-way valve 303, so that the backfilling cavity is filled;

[0044] In the local maintenance of the culvert, the grouting device is moved to the maintenance site, the blocking mechanism 4 is driven by the speed reduction mechanism 5 to close the flow-through cavity, so that the multiple backfilling cavities are independent of each other, the release agent is uniformly coated on the surface of the blocking mechanism 4, and then the external pump grouting mechanism is used to inject grout into the one-way valve 303 at the maintenance site, so that the backfilling cavity is filled;

[0045] S300, cooling forming, after the backfilling cavity is filled, the arch surface unit 301 and the side wall unit 302 are removed, and the jig is moved to the next working site.

[0046] The embodiments of the present application are disclosed, but are not limited to this, and those skilled in the art can easily understand the spirit of the present application according to the above embodiments, and make different inferences and changes, as long as they do not deviate from the spirit of the present application, they are within the protection scope of the present application.

Claims

1. A grouting device for tunnel and bridge construction, characterized in that, include: Movable vehicle (1); An arch frame (2) is erected on the vehicle (1); Template mechanism (3) is assembled on the arch frame (2), wherein the template mechanism (3) is an assembled structure; Several sealing mechanisms (4) are equally spaced along the ridge of the arch frame (2) and pass through the template mechanism (3), causing the template mechanism (3) to form multiple backfill cavities; The deceleration mechanism (5) is fixed on the vehicle (1) and connected to the blocking mechanism (4). The arch frame (2) includes: The first guide frame (201) is centrally fixed to the top surface of the vehicle (1); There are two second guide frames (202), which are fixed on the top surface of the carrier (1) in a symmetrical structure relative to the first guide frame (201) on both sides of the axial direction. Several third guide frames (203) are arranged in a matrix structure outside the first guide frame (201), wherein several of the third guide frames (203) form a limiting cavity; There are two fourth guide frames (204), which are embedded in the template mechanism (3) at a position relative to the second guide frame (202); The template mechanism (3) includes: An arched unit (301) is mounted above the vehicle (1); Two sidewall units (302) are arranged in a symmetrical structure at the bottom ends of both sides of the arched surface unit (301); The arch surface unit (301) and the side wall unit (302) are hollow to form a backfill cavity, and the two ends of the third guide frame (203) are respectively inserted into the arch surface unit (301) and the side wall unit (302) along the ridge line of the arch frame (2), and the two ends of the fourth guide frame (204) are respectively embedded in the outside of the arch surface unit (301) and the side wall unit (302) along the ridge line of the arch frame (2); The arch unit (301) is a multi-segment arc-shaped lining structure assembled from several first assembly templates, forming a three-sided enclosure with an outer opening perpendicular to the ridge line of the arch frame (2). Each segment of the arc-shaped lining structure has a first blocking opening at both ends along the ridge line of the arch frame (2). The side wall unit (302) is a straight lining structure assembled from several second assembly templates, forming a four-sided enclosure with an open outer edge perpendicular to the ridge line of the arch frame (2). The straight lining structure is closed at the tail end and has a second blocking opening at the head end corresponding to the first blocking opening. The second blocking opening is clearance-fitted with the first blocking opening and the two adjacent first blocking openings to form a blocking cavity, and a plurality of the blocking mechanisms (4) are inserted into the blocking cavity; Each section of the arc-shaped lining structure and the straight-line lining structure is fitted with a one-way valve (303).

2. The grouting device for tunnel and bridge construction as described in claim 1, characterized in that, The dimensions of the first threading frame (201), the second threading frame (202), the limiting cavity and the fourth threading frame (204) gradually increase.

3. The grouting device for tunnel and bridge construction as described in claim 1, characterized in that, The blocking mechanism (4) includes: An upper barrier plate (401) is arranged at one end of the blocking cavity; A lower baffle plate (402) is disposed at the other end of the blocking cavity; The gap between the lower barrier plate (402) and the upper barrier plate (401) forms a clutch cavity; Iris structure (403) is arranged on one side of the clutch cavity; The iris structure (403) forms a channel with the through holes on the upper barrier plate (401) and the lower barrier plate (402) to form a flow cavity; A toothed ring (404) is arranged on the other side of the clutch cavity; The toothed ring (404) is fixedly connected to the rotating disk of the iris structure (403); The driven teeth (405) are arranged in a ring at equal intervals on the outside of the tooth ring (404); Among them, several of the driven teeth (405) are respectively sleeved on the first guide frame (201) and the second guide frame (202).

4. A grouting device for tunnel and bridge construction as described in claim 3, characterized in that, The end of the third guide frame (203) passes through the inner edge of the upper barrier plate (401), the blade fixing foot of the iris structure (403), and the inner edge of the lower barrier plate (402) in sequence.

5. A grouting device for tunnel and bridge construction as described in claim 3, characterized in that, The reduction mechanism (5) includes a worm gear reducer (501) and a drive disk (502). The drive disk (502) is sleeved on the output end of the worm gear reducer (501). One side of the driven tooth (405) is meshed with the outer edge of the drive disk (502), and the other side of the driven tooth (405) is meshed with the tooth ring (404).

6. A method of using a grouting device for tunnel and bridge construction according to any one of claims 1-5, characterized in that, Includes the following steps: S100, Pre-installation: In the tunnel, the first guide frame (201) and the second guide frame (202) are installed on a movable vehicle (1), and several sealing mechanisms (4) are sequentially assembled. The third guide frame (203) passes through the several sealing mechanisms (4) to form an installation frame. The arch surface unit (301) and the side wall unit (302) are assembled on the installation frame to form a template mechanism (3), and the fourth guide frame (204) is used to fit and fix the template mechanism (3). Finally, the deceleration mechanism (5) that meshes with the several sealing mechanisms (4) is installed. S200, backfill concrete: During the overall construction of the culvert, the grouting device is moved to the construction site, and the sealing mechanism (4) is driven by the deceleration mechanism (5) to open the flow cavity, so that multiple backfill cavities are connected to each other. After the release agent is evenly applied to the surface of the sealing mechanism (4), grout is injected into each one-way valve (303) through the external grouting mechanism, so that the backfill cavity is filled. In the local maintenance of the culvert, the grouting device is moved to the maintenance site, and the sealing mechanism (4) is driven by the deceleration mechanism (5) to close the flow cavity, so that the multiple backfill cavities are independent of each other. After the release agent is evenly applied to the surface of the sealing mechanism (4), the grout is injected into the one-way valve (303) of the site to be maintained through the external grouting mechanism, so that the backfill cavity is filled. S300, cooling and molding, after the backfill cavity is filled, the arch unit (301) and side wall unit (302) are removed, and the prototype is moved to the next working position.

Images