Subway tunnel deep hole grouting operation platform equipment and construction method

Abstract

The present invention discloses a subway tunnel deep hole grouting operation platform device and a construction method thereof, comprising: a guide rail laid in the tunnel, the guide rail being arranged along the length of the tunnel; a transport vehicle slidably mounted on the guide rail, the transport vehicle having a pedestal, the pedestal being provided with a supporting beam; a tilting ladder comprising two ladder beams arranged opposite to each other and a plurality of treads, the plurality of treads being connected between the two ladder beams, the plurality of treads being arranged along the length of the ladder beams, a tread in the middle of the ladder beam being rotatably mounted on the supporting beam, the tread being arranged in the same direction as the supporting beam; and a locking structure comprising a pull rod and a first lug, the first lug being rotatably connected to the ladder beam, one end of the pull rod being hinged to the pedestal, the other end of the pull rod being adjustably mounted to the first lug. The present invention solves the problem of low construction efficiency when setting up temporary scaffolding for deep hole grouting in a formed tunnel.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction, and in particular to a subway tunnel deep hole grouting operation platform device and a construction method thereof. Background Art

[0002] In urban subway shield tunnel construction, prefabricated reinforced concrete segments are used to form the tunnel. Each ring of the segment structure is generally 1.5m (or 1.2m) wide, with an outer diameter of 6.2m (or 6m) and an inner diameter of 5.5m (or 5.4m). Each ring of segments typically consists of six segments, connected by arc bolts to form a circular ring structure. After the segments are assembled into a circular structure, depending on design requirements or on-site construction practices, holes are typically drilled in the upper half of the segment for secondary back-fill grouting or deep-hole grouting using steel tubes. Conventional methods typically involve erecting temporary scaffolding within the tunnel, with workers climbing onto the temporary scaffolding platforms to perform their work. This method is inefficient and can be cumbersome to move to another work location.

[0003] The information disclosed in this background technology section is only intended to enhance understanding of the overall background of the invention and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the Invention

[0004] In order to overcome the defects of the existing technology, a subway tunnel deep hole grouting operation platform equipment and a construction method are now provided to solve the problem of low construction efficiency when setting up temporary scaffolding for deep hole grouting in a formed tunnel.

[0005] To achieve the above-mentioned purpose, a subway tunnel deep hole grouting operation platform device is provided, comprising:

[0006] A guide rail is laid in the tunnel, and the guide rail is arranged along the length direction of the tunnel;

[0007] A transport vehicle is slidably mounted on the guide rail, wherein the transport vehicle has a support platform, and the support platform is provided with a supporting beam;

[0008] A flip ladder comprises two ladder beams arranged opposite to each other and a plurality of treads, wherein the plurality of treads are connected between the two ladder beams and arranged along the length direction of the ladder beams, a tread in the middle of the ladder beams is rotatably mounted on the support beam, and the treads are arranged in the same direction as the support beam; and

[0009] The locking structure includes a pull rod and a first ear plate, wherein the first ear plate is rotatably connected to the ladder beam, one end of the pull rod is hinged to the support platform, and the other end of the pull rod is adjustably mounted on the first ear plate.

[0010] Furthermore, there are two guide rails, and the two guide rails are arranged in the same direction.

[0011] Furthermore, the transport vehicle is a flatbed transport vehicle.

[0012] Furthermore, the first ear plate is arranged at the end of the ladder beam.

[0013] Furthermore, the ladder beam is provided with a first axial hole, the first axial hole is arranged in the same direction as the treading member, the first ear plate is connected to a first rotating shaft, and the first rotating shaft is rotatably inserted into the first axial hole.

[0014] Furthermore, a second ear plate is connected to the upper part of the support platform, the second ear plate is vertically arranged, the second ear plate and the pull rod are respectively provided with a second axial hole, and a second rotating shaft is rotatably inserted into the second axial holes of the second ear plate and the pull rod.

[0015] Furthermore, a sleeve is fixedly provided on the top of the support beam, and a tread member in the middle of the ladder beam is rotatably inserted into the sleeve.

[0016] Furthermore, the pull rod is a straight threaded rod, and two limiting members are screwed into the straight threaded rod, and the two limiting members are respectively pressed against the opposite sides of the first ear plate.

[0017] The present invention provides a construction method for a subway tunnel deep hole grouting operation platform device, comprising the following steps:

[0018] Installing a guide rail in a tunnel so that the guide rail is arranged along the length direction of the tunnel;

[0019] Starting the transport vehicle and placing the tilting ladder at the grouting point of the tunnel;

[0020] Based on the height and position of the grouting point, the flip ladder is rotated by adjusting the position of the other end of the pull rod on the first ear plate so that the upper end of the flip ladder is located near the grouting point;

[0021] The construction workers step on a plurality of stepping pieces through the lower end of the flip ladder to stand near the grouting point and perform deep hole grouting at the grouting point.

[0022] The beneficial effect of the present invention is that the subway tunnel deep hole grouting operation platform equipment of the present invention uses the upper end of the flip ladder as the working platform area, and the construction personnel stand on the working platform area to perform deep hole grouting on the tunnel grouting points. On the one hand, the working platform area can be flexibly adjusted according to the position of the grouting point. On the other hand, it can be flexibly moved along the length direction of the tunnel through the combination of the transport vehicle and the guide rail, thereby improving the efficiency of the tunnel deep hole grouting construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0024] Figure 1 This is a schematic structural diagram of a subway tunnel deep hole grouting operation platform device according to an embodiment of the present invention.

[0025] Figure 2 It is a side view of the subway tunnel deep hole grouting operation platform equipment according to an embodiment of the present invention.

[0026] Figure 3 Schematic diagram of the top structure of the support beam according to an embodiment of the present invention.

[0027] Figure 4 Schematic diagram of the locking structure of an embodiment of the present invention. DETAILED DESCRIPTION

[0028] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant invention and are not intended to limit the invention. It should also be noted that, for ease of description, only portions relevant to the invention are shown in the accompanying drawings.

[0029] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] Reference Figures 1 to 4 As shown, the present invention provides a subway tunnel deep hole grouting operation platform device, including: a guide rail 1, a transport vehicle 2, a flip ladder 3, and a locking structure 4.

[0031] The guide rail 1 is laid in the tunnel 5 and is arranged along the length direction of the tunnel 5 .

[0032] The transport vehicle 2 is slidably mounted on the guide rail 1. The transport vehicle 2 has a support platform 21. The support platform 21 is provided with a support beam 22.

[0033] The tilting ladder 3 includes two ladder beams 31 and a plurality of treads 32. The two ladder beams 31 are arranged opposite each other. The plurality of treads 32 are connected between the two ladder beams 31. The plurality of treads 32 are arranged along the length of the ladder beams 31. A tread 32 in the middle of the ladder beam 31 is rotatably mounted to the support beam 22. The tread 32 is arranged in the same direction as the support beam 22.

[0034] The locking structure 4 includes a pull rod 41 and a first lug 42. The first lug 42 is rotatably connected to the ladder beam 31. One end of the pull rod 41 is hinged to the base 21, and the other end of the pull rod 41 is adjustably mounted on the first lug 42.

[0035] The subway tunnel deep hole grouting operation platform equipment of the present invention is achieved by laying guide rails in the tunnel to install a transport vehicle, using the transport vehicle device to flip the ladder, and adjusting the setting angle of the flip ladder through a locking structure and locking it near the grouting point of the tunnel. Construction workers stand near the grouting point by flipping the ladder to perform deep hole grouting on the grouting point of the tunnel.

[0036] Specifically, when adjusting the setting angle of the flip ladder, refer to Figure 3 As shown, the tiltable ladder rotates around the upper end of the support beam. When the support beam is located in the middle of the tunnel and the distance between the top of the support beam and the top inner wall of the tunnel is adapted to half the length of the ladder beam, when the tiltable ladder rotates around the support beam, the ends of the tiltable ladder move along the upper inner wall of the tunnel, allowing the ends of the tiltable ladder to move within a 180° range in the upper part of the tunnel.

[0037] The subway tunnel deep hole grouting operation platform equipment of the present invention uses the upper end of the flip ladder as the working platform area. Construction workers stand on the working platform area to perform deep hole grouting on the grouting points of the tunnel (within the upper half circle). On the one hand, the working platform area can be flexibly adjusted according to the position of the grouting point. On the other hand, it is flexibly moved along the length direction of the tunnel through the combination of the transport vehicle and the guide rail, thereby improving the efficiency of the tunnel deep hole grouting construction.

[0038] In this embodiment, there are two guide rails 1 , which are arranged in the same direction. The transport vehicle 2 is a flatbed transport vehicle 2 .

[0039] In a preferred embodiment, the first lug 42 is disposed at the end of the ladder beam 31. Specifically, the ladder beam 31 defines a first axial hole. The first axial hole is disposed in the same direction as the treadle 32. The first lug 42 is connected to a first rotating shaft. The first rotating shaft is rotatably inserted into the first axial hole.

[0040] In this embodiment, a second lug plate 211 is connected to the upper portion of the support platform 21. The second lug plate 211 is vertically arranged. The second lug plate 211 and the pull rod 41 are respectively provided with a second axial hole. A second rotating shaft is rotatably inserted into the second axial holes of the second lug plate 211 and the pull rod 41.

[0041] As a preferred embodiment, both ends of the support beam are respectively mounted on the upper part of the pedestal via columns 23. A sleeve 221 is fixed to the top of the support beam 22. A tread 32 in the middle of the ladder beam 31 is rotatably inserted into the sleeve 221.

[0042] In some embodiments, the treading member is a pedal. Specifically, the ladder beam is a hollow tube. Third axial holes are formed on opposing sides of the two ladder beams. Third rotating shafts are connected to opposing ends of the pedals, respectively, and rotatably inserted into the third axial holes. Multiple drive motors are installed in the internal channel of the ladder beam. The number of drive motors matches the number of pedals. The output shafts of the drive motors are coaxially connected to a driving gear. The ends of the third rotating shafts are coaxially connected to a driven gear, which meshes with the driving gear. The driving motors drive the driving gears to rotate, which in turn drives the driven gears to rotate, thereby rotating the pedals. Furthermore, the ladder beam is equipped with an angle sensor that measures the setting angle of the foldable ladder after it is flipped and locked by the locking structure. The angle sensor is connected to a controller that is connected to the multiple drive motors within the ladder beam. The controller calculates the number of rotations of the driving gear based on the setting angle of the foldable ladder measured by the angle sensor. The output shafts of the drive motors rotate the number of rotations calculated by the controller, causing the pedals to be positioned horizontally. In this way, when the flip ladder is flipped to any angle, the pedals can be arranged in the horizontal direction, so that the construction workers can walk on the flip ladder to the vicinity of the grouting point as if walking on flat ground.

[0043] The pull rod 41 is a straight threaded rod. The straight threaded rod is screwed with two limit members 411. The two limit members 411 are respectively pressed against the opposite sides of the first ear plate 42.

[0044] In some embodiments, the pull rod is an electro-hydraulic push rod connected to a controller, which calculates the setting angle of the flip ladder after flipping according to the telescopic length of the electro-hydraulic push rod.

[0045] The present invention provides a construction method of a deep hole grouting operation platform device for a subway tunnel, comprising the following steps:

[0046] S1: Install the guide rail 1 in the tunnel 5 so that the guide rail 1 is arranged along the length direction of the tunnel 5 .

[0047] S2: Start the transport vehicle 2 and set the flip ladder 3 at the grouting point of the tunnel 5.

[0048] Based on the height and position of the grouting point, the flip ladder 3 is rotated by adjusting the position of the other end of the pull rod 41 on the first ear plate 42 so that the upper end of the flip ladder 3 is located near the grouting point.

[0049] S3: The construction workers step on the multiple stepping pieces 32 through the lower end of the flip ladder 3 to stand near the grouting point and perform deep hole grouting at the grouting point.

[0050] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention herein is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features having similar functions disclosed in this application.

Claims

1. A subway tunnel deep hole grouting operation platform equipment, characterized in that: include: A guide rail is laid in the tunnel, and the guide rail is arranged along the length direction of the tunnel; A transport vehicle is slidably mounted on the guide rail, wherein the transport vehicle has a support platform, and the support platform is provided with a supporting beam; A flip ladder comprises two ladder beams arranged opposite to each other and a plurality of treads, wherein the plurality of treads are connected between the two ladder beams and arranged along the length direction of the ladder beams, a tread in the middle of the ladder beams is rotatably mounted on the support beam, and the treads are arranged in the same direction as the support beam; and A locking structure comprising a pull rod and a first ear plate, wherein the first ear plate is rotatably connected to the ladder beam, one end of the pull rod is hinged to the base, and the other end of the pull rod is adjustably mounted on the first ear plate; The first ear plate is arranged at the end of the ladder beam; The ladder beam is provided with a first shaft hole, the first shaft hole and the treadle are arranged in the same direction, the first ear plate is connected to a first rotating shaft, and the first rotating shaft is rotatably inserted into the first shaft hole; The upper portion of the support platform is connected to a second ear plate, the second ear plate is vertically arranged, the second ear plate and the pull rod are respectively provided with a second shaft hole, and a second rotating shaft is rotatably inserted into the second shaft holes of the second ear plate and the pull rod; The pull rod is a straight threaded rod, and two limiting members are screwed on the straight threaded rod, and the two limiting members are respectively pressed against the opposite sides of the first ear plate; When adjusting the setting angle of the flip ladder, the flip ladder flips around the upper end of the supporting beam. When the supporting beam is set in the middle of the tunnel and the distance between the top of the supporting beam and the top inner wall of the tunnel is adapted to half the length of the ladder beam, when the flip ladder flips and rotates around the supporting beam, the two ends of the flip ladder move along the upper inner wall of the tunnel, so that the end of the flip ladder can move within a 180° range in the upper part of the tunnel.

2. The subway tunnel deep hole grouting operation platform equipment according to claim 1 is characterized in that: There are two guide rails, and the two guide rails are arranged in the same direction.

3. The subway tunnel deep hole grouting operation platform equipment according to claim 1 is characterized in that: The transport vehicle is a flatbed transport vehicle.

4. The subway tunnel deep hole grouting operation platform equipment according to claim 1 is characterized in that: A sleeve is fixedly provided on the top of the support beam, and a tread piece in the middle of the ladder beam is rotatably inserted into the sleeve.

5. A construction method for a subway tunnel deep hole grouting operation platform device according to any one of claims 1 to 4, characterized in that: The following steps are involved: Installing a guide rail in a tunnel so that the guide rail is arranged along the length direction of the tunnel; Starting the transport vehicle and placing the tilting ladder at the grouting point of the tunnel; Based on the height and position of the grouting point, the flip ladder is rotated by adjusting the position of the other end of the pull rod on the first ear plate so that the upper end of the flip ladder is located near the grouting point; The construction workers step on a plurality of stepping pieces through the lower end of the flip ladder to stand near the grouting point and perform deep hole grouting at the grouting point.

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