Tunnel construction mixed grouting device

Abstract

The invention discloses a mixed grouting device for tunnel construction, and relates to the technical field of construction equipment for tunnel construction. The grouting device comprises a grout making unit, a grout supply unit and a pipeline unit communicating the grout making unit and the grout supply unit, and the grout supply unit and the grout making unit can move relatively and move within the length change range of the pipeline unit; the slurry making unit and the slurry supply unit are arranged in a split mode and can move relatively independently, it is only needed to continuously control the slurry supply unit to move along with the grouting operation in the grouting operation, and the problems proposed in the prior art are solved.

Description

Technical Field

[0001] This invention belongs to the field of tunnel construction equipment technology, and in particular relates to a tunnel construction mixed grouting device. Background Technology

[0002] Nowadays, shallow-buried tunneling is widely used in tunnel construction. It involves several procedures, one of which is essential: pre-support and pre-reinforcement. Pre-support and pre-reinforcement require grouting reinforcement, which necessitates the use of grouting machines.

[0003] For example, CN106368719B discloses a mixing grouting machine for tunnel construction, including a batching box, a mixing box, a grouting box, and a mobile chassis. A double-body feeding hopper is provided on the upper side of the batching box, and a shielding fence is provided on the upper side of the double-body feeding hopper. A vibrating screen is provided on the lower side of the shielding fence. The vibrating screen is connected to the double-body feeding hopper through a fixed sealing connector. A vibrating motor is provided on the left side of the vibrating screen, and a vibrating motor mounting base is provided on the lower side of the vibrating motor. A batching regulating valve is provided on the lower side of the batching regulating valve, and batching regulating handles are provided on both sides of the batching regulating valve. A discharge port is provided on the lower side of the batching regulating valve, and a conveyor belt is provided on the lower side of the discharge port. A conveyor drive wheel is provided on the right side of the conveyor belt, and a conveyor drive turbine is provided in front of the conveyor drive wheel. A conveyor fixed base is provided on the lower side of the conveyor drive turbine, and a conveyor drive motor is provided on the right side of the conveyor drive turbine. A conveyor fixed frame is provided on the left side of the conveyor belt, and a conveyor driven wheel is provided on the upper side of the conveyor fixed frame. The conveyor driven wheel is connected to the conveyor fixed frame through a driven wheel connecting shaft.

[0004] For example, CN111535834B discloses a grouting machine for tunnel construction, the structure of which includes tires, a lift, a shotcrete device, a collection tray, a frame, and a cab. The tires are connected to the lower end of the frame by bolts. The lift is movably engaged with the left end of the frame. The shotcrete device is installed at the right front end of the lift. The collection tray is located at the right end of the frame and installed below the shotcrete device. The cab is located inside the frame. The shotcrete device includes a grout delivery pipe, a bracket, a fixing groove, a grout spraying device, and a shotcrete head. The grout delivery pipe is threaded to the right side of the bracket. The fixing groove is installed at the lower end of the grout delivery pipe and the bracket. The grout spraying device is located on the left side of the bracket. The shotcrete head is welded to the right end of the bracket. The grout spraying device is installed at the left end of the bracket and its length is slightly shorter than the length of the bracket.

[0005] The grouting machine provided by the above-mentioned prior art is an integrated unit of the grouting machine and the mixer. That is, during the grouting process inside the tunnel, the grouting machine needs to be moved as the grouting position changes. Since the grouting machine and the mixer are integrated, the machine itself is heavy and bulky, which makes it inconvenient to move due to the limited space inside the tunnel. At the same time, the constant movement required during the grouting operation results in a waste of energy or manpower. Summary of the Invention

[0006] The purpose of this invention is to provide a hybrid grouting device for tunnel construction. By separating the grout preparation unit and the grout supply unit, and allowing both to move relatively independently, the grout supply unit only needs to be continuously moved during the grouting operation, thus solving the problems raised in the prior art.

[0007] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a hybrid grouting device for tunnel construction, comprising a grouting unit and a grouting supply unit connected to the grouting unit via a pipeline unit, wherein the grouting supply unit is connected to the grouting unit; the grouting supply unit and the grouting unit are movable relative to each other, and the two can move within the range of the length variation of the pipeline unit; The piping unit includes a flexible hose connecting a slurry supply unit and a slurry preparation unit, and a support rod assembly connecting the two and used for installing the flexible hose; the support rod assembly includes at least two rods, which are hinged together by a first hinge, and the two rods at both ends of the support rod assembly are respectively hinged to the slurry supply unit and the slurry preparation unit by a second hinge; the flexible hose is arranged along the length of the support rod assembly, and the support rod assembly is provided with a plurality of clamps for fixing the flexible hose at equal intervals along its length.

[0008] Furthermore, as the distance between the slurry supply unit and the slurry preparation unit changes, the first hinge and the second hinge expand and contract, at which time the support rod assembly expands and contracts in the horizontal direction; the clamp includes a base plate, a pair of symmetrically arranged side plates are mounted on the upper surface of the base plate, the ends of the side plates are provided with arc-shaped plates, the ends of the arc-shaped plates are provided with mounting parts A, the ends of the two arc-shaped plates are connected with arc-shaped clamps, the two ends of the arc-shaped clamps are provided with mounting parts B that cooperate with mounting parts A; it also includes a bolt assembly that passes through mounting parts A and mounting parts B; an elastic telescopic structure is also provided on the bottom side of the base plate between the two side plates, the ends of the elastic telescopic structure are provided with movable blocks, and the upper surface of the movable blocks is provided with arc-shaped surfaces.

[0009] Furthermore, the radius of curvature of the arc-shaped surface is smaller than the radius of curvature of the arc-shaped plate, and the radius of curvature of the arc-shaped plate is equal to the radius of curvature of the arc-shaped clamp; the inner wall of the side plate is provided with a guide groove, and both ends of the movable block are provided with guide sliders that slide along the length of the guide groove; the bottom end of the side plate is provided with a mounting foot, and the mounting foot is mounted on the base plate by fixing bolt A; the elastic telescopic structure includes an inner sleeve and an outer sleeve that are nested together, and a spring connecting the two; and the bottom side of the movable block is provided with a guide sleeve that fits onto the outer sleeve, and the upper surface of the base plate is provided with a groove for inserting the inner sleeve.

[0010] Furthermore, the upper part of the support rod is provided with at least two through-holes for inserting the substrate; the upper surface of the support rod is provided with an opening for the elastic telescopic structure to pass through; the upper sides of the support rod are provided with stepped portions to avoid the side plates; and the bottom side of the substrate is provided with a stop portion, on which a fixing bolt B is provided; one side of the support rod is provided with a threaded hole that mates with the fixing bolt B; the axial directions of the insertion holes and the openings are perpendicular to each other and both perpendicular to the length direction of the support rod; the insertion holes are arranged in a horizontal direction; and during installation, a rectangular frame is fixed to the periphery of the groove by screws, and an L-shaped rod is connected to one side of the rectangular frame. The top of the body is provided with a crossbar A, and L-shaped rods are connected to both ends of the crossbar A. Each L-shaped rod has a threaded adjusting bolt A and an adjusting bolt B that abut against the adjacent side walls of the side plate. One side of the side plate is also provided with a protrusion with a rectangular through hole. The length direction of the rectangular through hole is the same as the length direction of the crossbar A, and the axial direction of the rectangular through hole is the same as the axial direction of the elastic telescopic structure. It also includes a crossbar B, and each end of the crossbar B is provided with a rod that is inserted into the rectangular through hole. A pair of protrusions are provided between the two rods, and adjusting bolts C with their ends abutting against the inner wall of the side plate are provided on the protrusions.

[0011] Furthermore, the pulping unit includes a frame A, on which a feeding hopper, a first mixing tank, and a second mixing tank are provided; it also includes a material disposed at the bottom of the feeding hopper for lifting and conveying the material discharged from the feeding hopper into the first mixing tank, and the top of the first mixing tank is connected to a water glass supply pipe; the bottom of the first mixing tank is connected to the second mixing tank through a conveying pipe, and one end of the second mixing tank is connected to a flexible hose.

[0012] Furthermore, the slurry supply unit includes a frame B, on which a slurry storage tank is provided and a slurry inlet pipe is connected. A first slurry inlet head and a second slurry inlet head are connected to the slurry inlet pipe. The first slurry inlet head and / or the second slurry inlet head are connected to a hose through the slurry inlet pipe, and a flow meter A is provided on the slurry inlet pipe. The slurry storage tank is also connected to a slurry outlet pipe on one side. The slurry outlet pipe is connected to a slurry outlet head and an air inlet head. The air inlet head is connected to an air supply tank through an air supply pipe. The air supply tank is placed on a tray.

[0013] Furthermore, the top of the unloading hopper is provided with a tanker loading port and a manual loading port, and the top of the frame A is provided with a guardrail; the bottom of both the frame A and the frame B is provided with a trailer, the trailer including a frame, a towing frame connected to the frame and used for connecting to a tractor, the bottom side of the frame is provided with rollers and support legs; the bottom of both the frame A and the frame B is also provided with an assembly staircase, the assembly staircase including a pair of inclined plates and a support formed by welding a horizontal plate between the pair of inclined plates, the support having prefabricated slabs arranged in a stepped distribution fixed on it; the frame B is provided with a control cabinet; the frame A is also provided with a climbing ladder, and the bottom of the climbing ladder is provided with an assembly staircase on the frame A.

[0014] Furthermore, the support leg includes a side fixing plate welded to the bottom side of the frame, a positioning sleeve provided on the side fixing plate, a support column movably sleeved at the bottom end of the positioning sleeve, and a base plate, a pair of side mounting plates provided on the upper surface of the base plate, the bottom end of the support column being rotatably connected to the two side mounting plates via a shaft; the top of the inclined plate is welded to the bottom side of frame A / frame B; at least one U-shaped plate is also connected to the outer side of the inclined plate, a U-shaped clamp A is fixed to the outer bottom side of the U-shaped plate, and one end of the U-shaped clamp A... A U-shaped clamping plate B is hinged to the U-shaped clamping plate A and is opposite to it. Both the U-shaped clamping plate B and the U-shaped clamping plate A are provided with notches. The two notches are closed to form a clamping channel. An outer sleeve is provided through the clamping channel. The U-shaped clamping plate B is provided with a handle. The end of the handle is provided with a locking rod. The locking rod is provided with a limiting ring. The U-shaped clamping plate B is provided with a through hole for the locking rod to pass through. The end of the locking rod is provided with a threaded section. The U-shaped clamping plate A is provided with a connecting seat that is threadedly connected to the threaded section.

[0015] Furthermore, two U-shaped plates are provided on one side of the inclined plate, a pin hole A is provided at the top of the outer tube, and a handrail is movably provided at the top of the two outer tubes. The handrail includes two vertically arranged vertical rods, and the vertical rods are inserted into the top of the outer tubes. At least one pin hole B that mates with the pin hole A is provided at the bottom end of the vertical rods.

[0016] Furthermore, it also includes a protective unit for protecting the gas supply pipe. The protective unit includes several protective structures with equal gaps set on the outside of the gas supply pipe. The protective structure includes a pair of symmetrical metal clamps glued to the outside of the gas supply pipe. The metal clamps are provided with mounting ears. It also includes a bearing structure set on the outside of the gas supply pipe and fixed to the metal clamps. The inner ring of the bearing structure is welded with a mounting block that mates with the mounting ears.

[0017] The present invention has the following beneficial effects: 1. The present invention solves the problems raised in the prior art by setting the pulping unit and the pulp supply unit separately, and both can move relatively independently. This allows the pulp supply unit to be moved continuously during the grouting operation.

[0018] 2. In this invention, the two support rods are hinged together by a first hinge, and the two support rods at both ends of the support rod assembly a are respectively hinged to the pulp supply unit a and the pulp preparation unit a by a second hinge; when the movement of the pulp supply unit a and / or the pulp preparation unit a causes the distance between them to increase, the included angle between the support rods on the support rod assembly a increases and the assembly expands; at the same time, as the distance between the pulp supply unit a and the pulp preparation unit a changes, the first hinge and the second hinge expand and contract, and the support rod assembly a expands and contracts in the horizontal direction.

[0019] 3. The present invention uses a clamp consisting of an arc-shaped plate, an arc-shaped clamp, and a movable block to facilitate the fixing of pipes of various sizes. When fixing, the pipe is first placed into the area of ​​the two arc-shaped plates and the movable block for support, and then the arc-shaped clamp is installed to fix the pipe. This installation method is simple and easy to operate.

[0020] 4. The present invention, through the design of a protective structure, facilitates the protection of the air supply pipe, preventing damage caused by friction on the tunnel floor during the movement of the frame B. A pair of metal clamps are first glued to the outside of the air supply pipe, forming a support with a certain strength. Then, a bearing structure is installed on this support. The bearing structure can roll during dragging, transforming sliding friction into rolling friction, reducing friction during the dragging of the air supply pipe, saving effort. Furthermore, the bearing structure supports the air supply pipe, preventing it from contacting the ground during movement.

[0021] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the main structure of the grouting device of the present invention; Figure 2 This is a schematic diagram of the support rod assembly structure of the present invention; Figure 3 This is a schematic diagram of the support rod structure of the present invention; Figure 4 for Figure 3 Enlarged view of a portion of point A in the middle; Figure 5 This is a schematic diagram of the clamp structure of the present invention. Figure 1 ; Figure 6 for Figure 5 The main view; Figure 7 This is a schematic diagram of the grouting device of the present invention; Figure 8 for Figure 7 Enlarged view of a section at point B in the middle; Figure 9 for Figure 7 Enlarged view of a section at point C; Figure 10 for Figure 7 Enlarged view of a section at point D; Figure 11 This is a schematic diagram of the pulping unit structure of the present invention; Figure 12 for Figure 7 Top view; Figure 13 This is a schematic diagram of the protective unit structure of the present invention; Figure 14 This is a schematic diagram of the installation state structure of the protection unit of the present invention; Figure 15 This is a schematic diagram of the clamp structure of the present invention. Figure 2 ; Figure 16 for Figure 15 The main view. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0026] Example 1, Please see Figure 1As shown, the present invention is a hybrid grouting device for tunnel construction, including a grouting unit 1a and a grouting supply unit 2a connected to the grouting unit 1a via a pipeline unit. The grouting supply unit 2a is connected to the grouting unit. The grouting supply unit 2a and the grouting unit 1a can move relative to each other, and can move within the range of the length variation of the pipeline unit. By setting the grouting unit 1a and the grouting supply unit 2a separately, the grouting unit 1a can be placed and fixed in a certain position as needed during use, and then the grouting supply unit 2a can be moved to any position within the range of the length variation of the pipeline unit, thereby completing the grouting operation in the tunnel through the grouting supply unit 2a.

[0027] Specifically, the pipeline unit includes a hose connecting the slurry supply unit 2a and the slurry preparation unit 1a. In this invention, in order to prevent the hose located between the slurry supply unit 2a and the slurry preparation unit 1a from bending and contacting the ground and causing friction damage due to movement, the pipeline unit also includes a support rod assembly 3a connected between them and used for installing the hose. In this invention, such as Figure 3 The support rod assembly 3a includes at least two support rods 3, which are hinged together by a first hinge 31. The two support rods 3 at both ends of the support rod assembly 3a are respectively hinged to the pulp supply unit 2a and the pulp preparation unit 1a by a second hinge. When the pulp supply unit 2a and / or the pulp preparation unit 1a are moved, causing the distance between them to increase, the included angle between the support rods 3 on the support rod assembly 3a increases and the assembly expands. At the same time, as the distance between the pulp supply unit 2a and the pulp preparation unit 1a changes, the first hinge 31 and the second hinge expand and contract. At this time, the support rod assembly 3a expands and contracts in the horizontal direction.

[0028] like Figure 2-6To facilitate the fixed installation of the hose, several clamps 32 for fixing the hose are arranged along the length of the support rod assembly 3a, with equal spacing between each clamp 32. Each clamp 32 includes a base plate 321, with a pair of symmetrically arranged side plates 322 mounted on the upper surface of the base plate 321. An arc-shaped plate 324 is provided at the end of each side plate 322, and a mounting portion A3241 is provided at the end of each arc-shaped plate 324. Arc-shaped clamps 326 are connected to the ends of the two arc-shaped plates 324, and mounting portions B3261 that mate with the mounting portions A3241 are provided at both ends of the arc-shaped clamps 326. The clamps also include bolt assemblies 325 that penetrate the mounting portions A3241 and B3261. An elastic telescopic structure 3232 is also provided on the bottom side of the base plate 321 between the two side plates 322. A movable block 323 is provided at the end of the elastic telescopic structure 3232. The upper surface is provided with an arc-shaped surface 3230; the radius of curvature of the arc-shaped surface 3230 is smaller than the radius of curvature of the arc-shaped plate 324, and the radius of curvature of the arc-shaped plate 324 is equal to the radius of curvature of the arc-shaped clamp 326; the inner side wall of the side plate 322 is provided with a guide groove 3220, and the two ends of the movable block 323 are provided with guide sliders that slide along the length direction of the guide groove 3220; through the above settings, the clamp 32 can easily fix various pipes of different sizes, and when fixing, the pipe is first placed into the area of ​​the two arc-shaped plates 324 and the movable block 323 for support, and then the arc-shaped clamp 326 is installed to fix the pipe. This installation method is simple and easy to operate.

[0029] like Figure 2-6 Meanwhile, a mounting foot 3221 is provided at the bottom end of the side plate 322, and the mounting foot 3221 is installed on the base plate 321 by fixing bolt A3222; the elastic telescopic structure 3232 includes an inner sleeve and an outer sleeve that are nested together, and a spring connecting the two; and the bottom side of the movable block 323 is provided with a guide sleeve that fits on the outer sleeve, and the upper surface of the base plate 321 is provided with a groove for inserting the inner sleeve; the upper part of the support rod 3 is provided with at least two through holes 302 for inserting the base plate 321, and the support rod 3 The upper surface of the support rod 3 is provided with an opening 303 for the elastic telescopic structure 3232 to pass through. The upper two sides of the support rod 3 are provided with stepped portions 301 to avoid the side plate 322. The bottom side of the base plate 321 is provided with a stop portion 3211, and a fixing bolt B3212 is provided on the stop portion 3211. One side of the support rod 3 is provided with a threaded hole 304 that mates with the fixing bolt B3212. The axial directions of the insertion hole 302 and the opening 303 are perpendicular to each other and both are perpendicular to the length direction of the support rod 3. The insertion hole 302 is provided in the horizontal direction.

[0030] When installing the aforementioned common clamp 32, first insert the base plate 321 into the insertion hole 302, wait for the stop part 3211 to abut against one side of the support rod 3, and then fix it with the control fixing bolt B3212; pre-fix the side plate 322 by fixing bolt A3222 on the mounting foot 3221, and put the elastic telescopic structure 3232 into the groove; then control the movable block 323 to be placed between the two side plates 322, and fix the side plate 322 by rotating the fixing bolt A3222.

[0031] Example 2, based on Example 1 above, like Figure 7-12 The pulping unit 1a includes a frame A1, on which a feeding hopper 11, a first mixing tank 17, and a second mixing tank 18 are provided. The top of the feeding hopper 11 is provided with a tanker loading port 111 and a manual loading port 112. The unit also includes a material disposed at the bottom of the feeding hopper 11 for lifting and conveying the material discharged from the feeding hopper 11 into the first mixing tank 17. The top of the first mixing tank 17 is also connected to a water glass supply pipe 171. The bottom of the first mixing tank 17 is connected to the second mixing tank 18 through a conveying pipe, and one end of the second mixing tank 18 is connected to a flexible hose.

[0032] When using, cement is fed into the discharge hopper 11 through the tanker loading port 111 / manual loading port 112. Then, according to the ratio, water glass is discharged into the first mixing tank 17 through the water glass supply pipe 171 and cement is discharged into the discharge hopper 11 for uniform mixing. After uniform mixing, it is discharged into the second mixing tank 18 for standby. Low-speed stirring is used in the second mixing tank 18 to avoid false setting of the slurry when it is left to stand.

[0033] When grouting is required, the grout stored in the second mixing tank 18 is supplied to the grouting unit 2a through a hose for grouting.

[0034] Specifically, such as Figure 10 The slurry supply unit 2a of the present invention includes a frame B2. A slurry storage tank 21 is provided on the frame B2, and a slurry inlet pipe 23 is connected to one side of the frame B2. A first slurry inlet head 231 and a second slurry inlet head 232 are connected to the slurry inlet pipe 6. A flow meter A233 is provided on the slurry inlet pipe 6. The flow meter A233 is provided to facilitate the detection of the volume of slurry injected into the slurry storage tank 21 through the pipeline unit 3, so as to avoid the problem of too much slurry being injected into the slurry storage tank 21.

[0035] A slurry outlet pipe 24 is also connected to one side of the slurry storage tank 21. A slurry outlet head 241 and an air inlet head 242 are connected to the slurry outlet pipe 24. The air inlet head 242 is connected to the air supply tank 4 through the air supply pipe 14. The air supply tank 4 is placed on a tray 40. Meanwhile, in this invention, a guardrail 113 is provided on the top of the frame A1 to avoid safety hazards caused by the lack of a protective unit on the frame A1 during manual feeding through the manual feeding port 112. Meanwhile, in this invention, in order to facilitate the control of the movement of the pulp supply unit 2a and the pulping unit 1a, a trailer 5 is respectively provided at the bottom of the frame A1 and the frame B2. The trailer 5 specifically includes a frame 50 and a towing frame 53 connected to the frame 50 and used for connecting with the tractor. The bottom side of the frame 50 is provided with rollers 52 and support legs 51. In use, when it is necessary to move the frame A1 / frame B2 by controlling the trailer 5, the trailer 5 is connected to the tractor through the towing frame 53, and then the tractor is controlled to move to tow the trailer 5; at the same time, when it moves to the designated position, the support legs 51 are controlled to support the frame A1 / frame B2 to avoid the frame A1 / frame B2 from moving in the non-operation state and causing collisions inside the tunnel.

[0036] Meanwhile, assembly stairs 15 are also provided at the bottom of both frame A1 and frame B2. The assembly stairs 15 facilitate access to the first mixing tank 17, slurry storage tank 21, etc. installed on frame A1 and frame B2 for corresponding maintenance and operation.

[0037] Specifically, in this invention, the assembled staircase 15 includes a pair of inclined plates and a support 14 formed by welding a horizontal plate between the pair of inclined plates. Precast plates 141 arranged in a stepped manner are fixed on the support 14. A control cabinet 20 is provided on the frame B2. A climbing ladder 13 is also provided on the frame A1, and an assembled staircase 15 is provided on the bottom end of the climbing ladder 13 on the frame A1.

[0038] Furthermore, based on the above, when the movement of frame A1 and frame B2 is controlled by trailer 5, the frame of trailer 5 rises to lift frame A1 and frame B2, and the bottom side of support leg 51 is removed from the ground; when it is moved to the designated position, frame A1 and frame B2 are lowered, and the bottom side of support leg 51 contacts the ground.

[0039] Specifically, such as Figure 9 The support leg 51 provided by the present invention includes a side fixing plate 511 welded to the bottom side of the frame 50. A positioning sleeve 512 is provided on the side fixing plate 511. A support column 513 is movably sleeved at the bottom end of the positioning sleeve 512. The support leg 514 also includes a base plate 514. A pair of side mounting plates 515 are provided on the upper surface of the base plate 514. The bottom end of the support column 513 is rotatably connected to the two side mounting plates 515 through a shaft 516. A connecting rope that limits the maximum extension length of the support column 513 is connected between the inside of the positioning sleeve 512 and the support column 513.

[0040] Specifically, the inclined plate provided by this invention has its top welded to one side of the bottom of frame A1 / frame B2; as shown... Figure 8 The inclined plate is also connected to at least one U-shaped plate 142. A U-shaped clamping plate A143 is fixed to the outer bottom side of the U-shaped plate 142. One end of the U-shaped clamping plate A143 is hinged to a U-shaped clamping plate B144 that is arranged opposite to it. Both the U-shaped clamping plate B144 and the U-shaped clamping plate A143 are provided with notches. The two notches are closed to form a clamping channel 147. An outer sleeve 151 is provided through the clamping channel 147. It also includes a locking member, which includes a handle 146. The end of the handle 146 is provided with a locking rod 145. A limiting ring 1451 is provided on the locking rod 145. A useful... A through hole is provided through the locking rod 145, and the end of the locking rod 145 is set as a threaded section. A connecting seat 1431 is provided on the U-shaped clamp A143 to be threadedly connected to the threaded section. Through the setting of the outer sleeve 151, the bottom end of the assembled staircase 15 is supported by the assembly of the outer sleeve 151 during use, so as to avoid the assembled staircase 15 from breaking along the weld due to excessive force. At the same time, the structure design composed of the handle 146, locking rod 145, U-shaped clamp B144 and U-shaped clamp A143 is used to fix the outer sleeve 151, which facilitates the installation and disassembly of the outer sleeve 151.

[0041] Furthermore, based on the above, two U-shaped plates 142 are provided on one side of the inclined plate, and a pin hole A153 is provided at the top of the outer sleeve 151. Handrails are movably provided at the top of the two outer sleeves 151. The handrails include two vertically arranged vertical rods 152, and the vertical rods 152 are inserted into the top of the outer sleeves 151. At least one pin hole B that mates with the pin hole A153 is provided at the bottom of the vertical rods 152. By providing handrails, it is convenient to install handrails on one side of the assembled staircase 15 during use, so as to avoid falling during the process of climbing the assembled staircase 15.

[0042] like Figure 13-14 It also includes a protective unit for protecting the air supply pipe 41. The protective unit includes several protective structures with equal gaps set on the outside of the air supply pipe 41. The design of the protective structure facilitates the protection of the air supply pipe 41 and avoids damage caused by friction on the tunnel floor during the movement of the frame B2.

[0043] The protective structure provided by the present invention includes a pair of symmetrical metal clamps 70 glued to the outside of the air supply pipe 41, and mounting ears 71 are provided on the metal clamps 70; it also includes a bearing structure 7 located on the outside of the air supply pipe 41 and fixed to the metal clamps 70. The inner ring of the bearing structure 7 is welded with a mounting block 73 that cooperates with the mounting ears 71. The pair of metal clamps 70 are first glued to the outside of the air supply pipe 41 to form a support part with a certain strength. Then the bearing structure 7 is installed on the support part. The bearing structure 7 can roll during the dragging process, turning sliding friction into rolling friction, reducing the friction of the air supply pipe 41 during the dragging process, which is more labor-saving. In addition, the bearing structure 7 supports the air supply pipe 41, preventing the air supply pipe 41 from contacting the ground during the movement.

[0044] In Example 3, based on Example 1 above, to prevent the side plates 322 from tilting inward or outward under stress during installation, a rectangular frame 37 is fixed to the periphery of the groove with screws. An L-shaped rod 371 is connected to one side of the rectangular frame 37. A crossbar A372 is provided at the top of the L-shaped rod 371, and L-shaped rods 373 are connected to both ends of the crossbar A372. Adjusting bolts A3731 and B3732, threaded through and abutting against the adjacent side walls of the side plate 322, are respectively provided at the two ends of the L-shaped rods 373. A protrusion 38 is also provided on one side of the side plate 322, and a rectangular through hole is provided on the protrusion 38. The rectangular through hole has the same length direction as the crossbar A372, and the axial direction of the rectangular through hole is the same as the axial direction of the elastic telescopic structure 3232. It also includes a crossbar B39, with a rod 391 inserted into the rectangular through hole 381 at each end of the crossbar B39. A pair of protrusions 392 are also provided between the two rods 391. The protrusions 392 are provided with adjusting bolts C393 whose ends abut against the inner wall of the side plate 322. By adjusting the crossbars B39 and A372 as described above, the side plate 322 is ensured not to tilt inward or outward when under force during installation. The adjusting bolts provide support.

[0045] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A hybrid grouting device for tunnel construction, characterized in that: It includes a pulping unit (1a) and a slurry supply unit (2a) connected to the pulping unit (1a) via a pipeline unit, wherein a grouting unit is connected to the slurry supply unit (2a); The slurry supply unit (2a) and the slurry preparation unit (1a) are movable relative to each other, and can move within the range of the length variation of the pipeline unit; The piping unit includes a hose connecting the slurry supply unit (2a) and the slurry preparation unit (1a), and a support assembly (3a) connected between the two and used for installing the hose. The support rod assembly (3a) includes at least two support rods (3), which are hinged together by a first hinge (31). The two support rods (3) at both ends of the support rod assembly (3a) are respectively hinged to the pulp supply unit (2a) and the pulp preparation unit (1a) by a second hinge. The hose is arranged along the length of the support rod assembly (3a), and the support rod assembly (3a) is provided with a number of clamps (32) for fixing the hose at equal intervals along its length.

2. The tunnel construction mixed grouting device according to claim 1, characterized in that, As the distance between the pulp supply unit (2a) and the pulp preparation unit (1a) changes, the first hinge (31) and the second hinge unfold and retract, and at this time the support rod assembly (3a) unfolds and retracts in the horizontal direction. The clamp (32) includes a base plate (321), a pair of symmetrically arranged side plates (322) are mounted on the upper surface of the base plate (321), an arc plate (324) is provided at the end of the side plate (322), a mounting part A (3241) is provided at the end of the arc plate (324), an arc clamp (326) is connected to the ends of the two arc plates (324), and a mounting part B (3261) is provided at both ends of the arc clamp (326) to cooperate with the mounting part A (3241). It also includes a bolt assembly (325) that passes through mounting part A (3241) and mounting part B (3261). An elastic telescopic structure (3232) is also provided on the bottom side of the substrate (321) located between the two side plates (322). The end of the elastic telescopic structure (3232) is provided with a movable block (323), and the upper surface of the movable block (323) is provided with an arc-shaped surface (3230).

3. The tunnel construction mixed grouting device according to claim 2, characterized in that, The radius of curvature of the arc surface (3230) is smaller than the radius of curvature of the arc plate (324), and the radius of curvature of the arc plate (324) is equal to the radius of curvature of the arc clamp (326). The inner wall of the side plate (322) is provided with a guide groove (3220), and the two ends of the movable block (323) are provided with guide sliders that slide along the length direction of the guide groove (3220); The bottom end of the side plate (322) is provided with a mounting foot (3221), and the mounting foot (3221) is mounted on the base plate (321) by fixing bolt A (3222); The elastic telescopic structure (3232) includes an inner sleeve and an outer sleeve that are nested together, and a spring connected between the two. Furthermore, the bottom side of the movable block (323) is provided with a guide sleeve that fits onto the outer sleeve, and the upper surface of the base plate (321) is provided with a groove for inserting the inner sleeve.

4. A tunnel construction mixed grouting device according to claim 2 or 3, characterized in that, The upper part of the support rod (3) is provided with at least two through holes (302) for inserting the substrate (321), the upper surface of the support rod (3) is provided with an opening (303) for the elastic telescopic structure (3232) to pass through, and the upper sides of the support rod (3) are provided with stepped portions (301) to avoid the side plate (322). Furthermore, a stop (3211) is provided on the bottom side of the substrate (321), and a fixing bolt B (3212) is provided on the stop (3211). A threaded hole (304) that mates with the fixing bolt B (3212) is provided on one side of the support rod (3). The axial directions of the insertion hole (302) and the opening (303) are perpendicular to each other and both are perpendicular to the length direction of the support rod (3), and the insertion hole (302) is arranged in the horizontal direction; During installation, a rectangular frame (37) is fixed to the periphery of the groove by screws. An L-shaped rod (371) is connected to one side of the rectangular frame (37). A crossbar A (372) is provided at the top of the L-shaped rod (371). L-shaped rods (373) are connected to both ends of the crossbar A (372). Adjusting bolts A (3731) and B (3732) with threads through them and abutting against the adjacent side walls of the side plate (322) are provided at the two ends of the L-shaped rod (373). The side plate (322) is also provided with a protrusion (38) on one side, and a rectangular through hole is provided on the protrusion (38). The length direction of the rectangular through hole is the same as the length direction of the crossbar A (372), and the axial direction of the rectangular through hole is the same as the axial direction of the elastic telescopic structure (3232). It also includes a crossbar B (39), with a plug (391) inserted into a rectangular through hole (381) at each end of the crossbar B (39), and a pair of protrusions (392) between the two plugs (391), with an adjusting bolt C (393) on the protrusion (392) whose end abuts against the inner wall of the side plate (322).

5. A tunnel construction mixed grouting device according to claim 1, characterized in that, The pulping unit (1a) includes a frame A (1), on which a feeding hopper (11), a first mixing tank (17), and a second mixing tank (18) are provided. It also includes a material set at the bottom of the feeding hopper (11) to lift and transport the material discharged from the feeding hopper (11) into the first mixing tank (17), and the top of the first mixing tank (17) is also connected to a water glass supply pipe (171). The bottom of the first mixing tank (17) is connected to the second mixing tank (18) through a conveying pipe, and one end of the second mixing tank (18) is connected to a hose.

6. A tunnel construction mixed grouting device according to claim 5, characterized in that, The slurry supply unit (2a) includes a frame B (2), on which a slurry storage tank (21) is provided and connected to a slurry inlet pipe (23). A first slurry inlet head (231) and a second slurry inlet head (232) are connected to the slurry inlet pipe (23). The first slurry inlet head (231) and / or the second slurry inlet head (232) are connected to a hose through a slurry inlet pipe (6), and a flow meter A (233) is provided on the slurry inlet pipe (6). The slurry storage tank (21) is also connected to a slurry outlet pipe (24) on one side. The slurry outlet pipe (24) is connected to an outlet head (241) and an air inlet head (242). The air inlet head (242) is connected to an air supply tank (4) through an air supply pipe (14). The air supply tank (4) is placed on a tray (40).

7. A tunnel construction mixed grouting device according to claim 6, characterized in that, The top of the feeding hopper (11) is provided with a tanker loading port (111) and a manual loading port (112), and the top of the frame A (1) is provided with a guardrail (113). Both frame A (1) and frame B (2) are provided with trailers (5) at their bottoms. The trailers (5) include a frame (50), a towing frame (53) connected to the frame (50) and used for connecting with a tractor. The bottom side of the frame (50) is provided with rollers (52) and support legs (51). The bottom of both frame A (1) and frame B (2) is provided with an assembly staircase (15). The assembly staircase (15) includes a pair of inclined plates and a support (14) formed by welding a horizontal plate between the pair of inclined plates. Precast slabs (141) are fixed on the support (14) in a stepped distribution. A control cabinet (20) is installed on the rack B (2); A climbing ladder (13) is also provided on the frame A (1), and an assembly staircase (15) is provided on the bottom end of the climbing ladder (13) on the frame A (1).

8. A tunnel construction mixed grouting device according to claim 7, characterized in that, The support leg (51) includes a side fixing plate (511) welded to the bottom side of the frame (50), a positioning sleeve (512) is provided on the side fixing plate (511), a support column (513) is movably sleeved at the bottom end of the positioning sleeve (512), and a base plate (514) is also included. A pair of side mounting plates (515) are provided on the upper surface of the base plate (514), and the bottom end of the support column (513) is rotatably connected to the two side mounting plates (515) through a shaft (516). The top of the inclined plate is welded to one side of the bottom of frame A (1) / frame B (2); At least one U-shaped plate (142) is connected to the outside of the inclined plate. A U-shaped clamping plate A (143) is fixed to the outer bottom side of the U-shaped plate (142). A U-shaped clamping plate B (144) is hinged to one end of the U-shaped clamping plate A (143) and is arranged opposite to it. Notches are provided on both the U-shaped clamping plate B (144) and the U-shaped clamping plate A (143). The two notches are closed to form a clamping channel (147). An outer sleeve (151) is provided through the clamping channel (147). It also includes a locking component, which includes a handle (146), a locking rod (145) at the end of the handle (146), a limiting ring (1451) on the locking rod (145), a through hole for the locking rod (145) to pass through on the U-shaped clamping plate B (144), and the end of the locking rod (145) is a threaded section. A connecting seat (1431) is provided on the U-shaped clamping plate A (143) to be threadedly connected to the threaded section.

9. A tunnel construction mixed grouting device according to claim 8, characterized in that, Two U-shaped plates (142) are provided on one side of the inclined plate. A pin hole A (153) is provided on the top of the outer tube (151). Handrails are movably provided on the top of the two outer tubes (151). The handrails include two vertically arranged vertical rods (152), and the vertical rods (152) are inserted into the top of the outer tubes (151). At least one pin hole B that cooperates with the pin hole A (153) is provided at the bottom of the vertical rods (152).

10. A tunnel construction mixed grouting device according to any one of claims 6-9, characterized in that, It also includes a protective unit for protecting the air supply pipe (41), the protective unit including several protective structures equally spaced on the outside of the air supply pipe (41), the protective structure including a pair of symmetrical metal clamps (70) glued to the outside of the air supply pipe (41), the metal clamps (70) being provided with mounting ears (71); it also includes a bearing structure (7) provided on the outside of the air supply pipe (41) and fixed on the metal clamps (70), the inner ring of the bearing structure (7) being welded with a mounting block (73) that mates with the mounting ears (71).

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