A construction platform for a cliff terrain arch seat with a cableway

Abstract

The utility model relates to bridge construction technology field, concretely relates to a cliff topography abutment construction platform with cableway, including operation platform, operation platform sets up at the abutment mouth, steel pipe stand, the top of support leg is connected with operation platform, and the bottom of steel pipe stand is connected with ground, gantry support, the bottom of gantry support is connected with operation platform, and the top of gantry support is provided with first pulley block, first anchoring device, first anchoring device sets up in the hole top in the abutment hole, second anchoring device, second anchoring device is connected with operation platform, load bearing rope, load bearing rope one end is connected with first anchoring device, and load bearing rope other end is connected with second anchoring device and passes first pulley block, and is provided with hoist trolley on load bearing rope. The utility model can overcome when the abutment is located on the precipitous cliff, the abutment vicinity does not have enough space to carry out excavation and slagging operation, and the abutment depth is deeper, and the tower crane or cable crane cannot directly transport material to the abutment deep technical problem.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and in particular to a construction platform for cliff-top arch seats with cableways. Background Technology

[0002] When constructing the arch foundation of a bridge, it is necessary to first excavate a pit of the corresponding shape at the predetermined location of the arch foundation, and then pour concrete into the pit to form the arch foundation. Therefore, the construction of the arch foundation involves the transportation of a large amount of equipment and materials (such as excavators, loaders, slag, steel bars and cooling pipes). In order to meet the transportation needs of equipment and materials, existing technology generally constructs a construction access road directly to the arch foundation.

[0003] However, for some arch bridges, the arch abutments are designed with single-pile embedded foundations and are located on steep cliffs, with some slopes even being nearly vertical. This makes it difficult to construct access roads, thus hindering the movement of construction equipment and vehicles to the designated locations on the arch abutments. Even if construction equipment and vehicles are hoisted to the vicinity of the arch abutments using tower cranes, there is insufficient space for excavation and muck removal, significantly reducing the construction speed and efficiency. Furthermore, due to the inclined design of the arch abutments, for deeper arch abutments, tower cranes or cable cranes located outside the abutments and only capable of lowering and lowering hooks cannot reach the depths of the abutments. This prevents materials such as reinforcing bars and cooling pipes from being transported to the depths of the abutments, making construction at the depths of the abutments (such as the installation of reinforcing bars and cooling pipes) difficult. Utility Model Content

[0004] The purpose of this utility model is to overcome the technical problems that when the arch is located on a steep cliff, there is not enough space near the arch for excavation and slag removal operations, and when the arch is deep, tower cranes or cable cranes cannot directly transport materials into the depth of the arch. The present invention provides a construction platform for arches on cliff terrain with a cableway.

[0005] In a first aspect, this utility model provides a cliff-top arch support construction platform with a cableway, comprising: The working platform is set along the height direction and is located at the arch opening. The steel pipe column is installed below the working platform. The top of the steel pipe column is connected to the working platform, and the bottom of the steel pipe column is connected to the ground. The gantry frame is connected to the working platform at its bottom and has a first pulley block at its top. The first anchoring device is installed on the top of the arch seat hole; The second anchoring device is connected to the working platform and is located on the side of the gantry support away from the arch opening. The load-bearing rope has one end connected to the first anchoring device and the other end connected to the second anchoring device after passing over the first pulley block. A lifting trolley is installed on the load-bearing rope.

[0006] This plan sets up a working platform at the arch opening, and the bottom of the working platform is connected to the ground through steel pipe columns. This provides a stable working surface for equipment movement, equipment and material stacking, and other operations required for excavation and slag removal, thereby improving the overall construction speed and efficiency of the arch.

[0007] Meanwhile, this solution also includes a cableway system on the work platform, comprising a gantry frame, a first anchoring device, a second anchoring device, a load-bearing rope, and a crane trolley. The first and second anchoring devices can respectively fix the two ends of the load-bearing rope, and the first anchoring device is connected to the top of the arch cavity, so that the load-bearing rope also leads directly into the arch cavity. This allows the crane trolley, which moves along the load-bearing rope, to transport materials deeper into the arch cavity, ensuring the normal progress of construction deep inside the arch cavity and solving the technical problem that tower cranes or cable cranes cannot directly transport materials into the depths of the arch cavity. The gantry frame can tension and raise the load-bearing rope, making it convenient for workers to connect materials to the crane trolley below the load-bearing rope.

[0008] Preferably, the gantry frame includes support columns, bottom longitudinal beams, and top cross beams; the support columns are arranged along the height direction, and at least two support columns are spaced apart along the horizontal direction; the bottom longitudinal beams are provided on the bottom surface of the support columns, the length of the bottom longitudinal beams is arranged along the length direction of the load-bearing ropes, and the bottom of the bottom longitudinal beams is connected to the working platform; the length of the top cross beams is arranged along the distribution direction of the support columns, and the top cross beams are connected to the top of at least two support columns; a first pulley block is connected to the top cross beam.

[0009] This solution recommends one specific gantry frame structure, which can increase the height of the load-bearing rope through the support columns and top crossbeam, thereby ensuring that the clearance between the load-bearing rope and the upper surface of the working platform meets the space requirements for lifting materials; the bottom longitudinal beam can distribute the load transmitted from the support columns to the working platform more evenly, thereby preventing excessive local stress on the working platform and improving the structural safety of this solution.

[0010] Preferably, the gantry support also includes diagonal bracing, the length of which is inclined relative to the height direction; the two ends of the diagonal bracing are respectively connected to the support column and the bottom longitudinal beam, and / or the two ends of the diagonal bracing are respectively connected to the support column and the top crossbeam.

[0011] This solution can improve the rigidity of the gantry crane and its ability to resist lateral loads, thereby preventing the gantry crane from deforming or being damaged under the load generated by the load-bearing rope.

[0012] Preferably, the second anchoring device includes a cross beam, the bottom surface of which is connected to the working platform, and the top surface of which is provided with an ear plate. The end of the load-bearing rope away from the first anchoring device is connected to the ear plate.

[0013] This design can distribute the load transmitted from the load-bearing rope to the working platform more evenly through the cross beam, thereby preventing excessive local stress on the working platform and improving the structural safety of the design.

[0014] Preferably, it also includes a second pulley block, a winch, and a traction rope. The second pulley block is connected to the first anchoring device, the winch is connected to the working platform, and the traction rope is connected to the winch and passes around the first and second pulley blocks. The crane trolley is connected to the traction rope.

[0015] This solution uses the rotation of a winch to drive the movement of a traction rope, which in turn moves the crane trolley connected to the traction rope along the load-bearing rope. Compared to solutions where the crane trolley is self-powered, in this solution, the winch, which powers the crane trolley, is connected to the work platform, reducing the load that the load-bearing rope needs to bear. This also reduces the design complexity of the gantry support, the first anchoring device, and the second anchoring device. Furthermore, if the crane trolley's power source (i.e., the winch) malfunctions, the difficulty of maintenance and repair will also be reduced.

[0016] Preferably, there are at least two steel pipe columns, at least one of which is inclined in the length direction relative to its height, and the bottom end of the steel pipe column is farther away from the arch seat than the top end of the steel pipe column.

[0017] This solution involves installing inclined steel pipe columns below the work platform, with the inclination direction of the columns matching the slope direction of the hillside. This allows the steel pipe columns to be positioned as close to the hillside as possible without interfering with each other, thus improving their support for the work platform and ensuring its stability.

[0018] Preferably, there are at least two steel pipe columns, and a connecting system is provided between two adjacent steel pipe columns. The length of the connecting system is set in the horizontal direction, and the two ends of the connecting system are respectively connected to the steel pipe columns on the corresponding sides.

[0019] This solution connects two adjacent steel pipe columns into an integral frame structure through a connecting system, which helps to improve the rigidity and stability of the overall structure and prevents the steel pipe columns from becoming laterally unstable or displaced.

[0020] Preferably, at least one steel pipe column is also connected to the slope, with one end of the connection system connected to the steel pipe column and the other end of the connection system connected to the slope.

[0021] This solution can further improve the support effect of the steel pipe columns on the work platform and ensure the stability of the work platform.

[0022] Preferably, the working platform includes a steel panel, distribution beams, Bailey beams, and main beams. A plurality of distribution beams are spaced apart on the bottom surface of the steel panel along a first direction; a plurality of Bailey beams are spaced apart on the bottom surface of each distribution beam along a second direction; a plurality of main beams are spaced apart on the bottom surface of the Bailey beams along the first direction, and the first and second directions are both horizontal and perpendicular to each other; steel pipe columns are connected to the bottom surface of the main beams.

[0023] This scheme allows the components to be stacked gradually from bottom to top, which helps to gradually reduce the large spacing between the steel pipe columns to the smaller spacing between the distribution beams, facilitating vehicle traffic above the platform. On the other hand, using Bailey beams can also effectively increase the span and increase the spacing between the steel pipe columns, thereby reducing the total number of steel pipe columns and saving costs.

[0024] Preferably, it also includes a pile foundation, with the bottom end of the pile foundation inserted into the ground and a cap provided at the top of the pile foundation, and the bottom end of the steel pipe column connected to the cap.

[0025] This solution can transfer the load on the steel pipe column to a deeper and more solid bearing layer through the pile foundation, thereby improving the bearing capacity and stability of the steel pipe column; while the top cap can effectively connect the steel pipe column and the pile foundation, evenly transferring the load of the steel pipe column to the pile foundation, and at the same time providing the anchoring function of the steel pipe column.

[0026] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a construction platform for cliff-top arch seats with a cableway. By setting up a working platform with steel pipe columns at the arch seat opening, and installing a cableway system on the working platform including a gantry support, a first anchoring device, a second anchoring device, a load-bearing rope, and a lifting trolley, it can provide a stable working plane for equipment movement, equipment and material stacking, etc., required for excavation and muck removal operations, thereby improving the overall construction speed and efficiency of the arch seat. It can also transport materials deep into the arch seat opening to ensure the normal progress of construction deep inside the arch seat opening, solving the technical problem that tower cranes or cable cranes cannot directly transport materials deep into the arch seat. Attached Figure Description

[0027] Figure 1 This is a side view structural diagram of a cliff-top arch-shaped construction platform with a cableway according to the present invention. Figure 2 This is a partially enlarged side view of a construction platform with a cableway on a cliff-shaped arch base, according to this utility model. Figure 1 ; Figure 3This is a partially enlarged side view of a construction platform with a cableway on a cliff-shaped arch base, according to this utility model. Figure 2 ; Figure 4 This is a top view schematic diagram of a construction platform for a cliff-top arch seat with a cableway, according to this utility model. Figure 5 This is a top view of the second anchoring device of a cliff-top arched construction platform with a cableway, according to this utility model. Figure 6 This is a side view of the gantry support structure of a cliff-top arched construction platform with a cableway, according to this utility model. Figure 7 This is a front view structural diagram of a gantry support for a cliff-top arched construction platform with a cableway, according to this utility model. icon: 11-Steel panel; 110-Distribution beam; 12-Bailey beam; 13-Main beam; 2-Steel pipe column; 21-Pile foundation; 22-Top cap; 23-Connecting system; 3-Gantry support; 31-First pulley block; 32-Support column; 33-Bottom support longitudinal beam; 34-Bottom support crossbeam; 35-Top crossbeam; 36-Diagonal brace; 4-First anchoring device; 5-Second anchoring device; 51-Cross beam; 52-Ear plate; 6-Load-bearing rope; 7-Wind machine; 8-Tunnel opening; 9-Tower crane; 10-Arch base. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0029] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0030] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0031] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0032] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0033] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0034] Example 1 like Figures 1 to 7As shown, a construction platform for an arch support in cliff terrain with a cableway includes a working platform, steel pipe columns 2, a gantry support 3, a first anchoring device 4, a second anchoring device 5, a load-bearing rope 6, and a lifting trolley. The working platform is positioned along the height direction and is located at the opening of the arch support 10. Several steel pipe columns 2 are spaced apart below the working platform, with their tops connected to the working platform and their bottoms connected to the ground. The bottom of the gantry support 3 is connected to the working platform, and the gantry... The top of the support 3 is equipped with a first pulley block 31; the first anchoring device 4 is set on the top of the hole inside the arch seat 10; the second anchoring device 5 is connected to the working platform and is located on the side of the gantry support 3 away from the opening of the arch seat 10; one end of the load-bearing rope 6 is connected to the first anchoring device 4, and the other end of the load-bearing rope 6 passes around the first pulley block 31 and is connected to the second anchoring device 5; the lifting trolley is connected to the load-bearing rope 6 and can move along the load-bearing rope 6. A hook is connected to the lifting trolley through the lifting rope.

[0035] exist Figures 1 to 7 The various directions in this embodiment are also labeled using a Cartesian coordinate system, where the X and Y axes are both horizontal, the Z axis is vertical, and the X, Y, and Z axes are mutually perpendicular. Figures 1 to 2 In the figure, the structure of the crane trolley and the arrangement of the traction ropes can be achieved using readily available technology, and therefore are not shown in the drawing; Figures 6 to 7 In the diagram, the bottom longitudinal beam 33 and bottom cross beam 34 of the gantry support 3 are parallel to the X-axis and Y-axis directions, respectively, merely for convenience in representing that the bottom longitudinal beam 33 and bottom cross beam 34 are perpendicular to each other. However, the actual orientation of the gantry support 3 should be determined according to the direction of the load-bearing rope 6. For example... Figure 4 As shown, the bottom support beam 33 is set along the length of the load-bearing rope 6, rather than being completely parallel to the X-axis.

[0036] In an optional embodiment, the gantry support 3 includes support columns 32, bottom longitudinal beams 33, and top crossbeams 35; the support columns 32 are arranged along the height direction, and at least two support columns 32 are spaced apart along the horizontal direction; the bottom longitudinal beams 33 are arranged on the bottom surface of the support columns 32, the length of the bottom longitudinal beams 33 is arranged along the length direction of the load-bearing rope 6, and the bottom of the bottom longitudinal beams 33 is connected to the working platform; the length of the top crossbeams 35 is arranged along the distribution direction of the support columns 32, and the top crossbeams 35 are connected to the top of at least two support columns 32; the first pulley block 31 is connected to the top crossbeams 35.

[0037] In the above embodiment, the gantry support 3 also includes a bottom support beam 34, which is disposed between two adjacent bottom support longitudinal beams 33. The length of the bottom support beam 34 is arranged along the distribution direction of the support column 32. The two ends of the bottom support beam 34 are respectively connected to the bottom support longitudinal beam 33 on the corresponding side, thereby further increasing the connection area between the gantry support 3 and the working platform and the rigidity of the gantry support 3.

[0038] In the above embodiments, the gantry support 3 further includes a diagonal brace 36, the length of which is inclined relative to the height direction; both ends of the diagonal brace 36 are connected to the support column 32 and the bottom longitudinal beam 33 respectively, and / or, both ends of the diagonal brace 36 are connected to the support column 32 and the top crossbeam 35 respectively. For example Figures 6 to 7 As shown, diagonal braces 36 are provided between the support column 32 and the top crossbeam 35, between the support column 32 and the bottom longitudinal beam 33, and between the support column 32 and the bottom crossbeam 34.

[0039] In optional embodiments, the specific structures of the first anchoring device 4 and the second anchoring device 5 can refer to the prior art, including but not limited to wedge anchoring structures, pressure plate anchoring structures or roll anchoring structures.

[0040] In an optional implementation, the first anchoring structure may be a steel anchor rod, and the number of steel anchor rods may be one or more.

[0041] In an optional embodiment, the second anchoring device 5 includes a cross beam 51, the bottom surface of which is connected to the working platform, and the top surface of which is provided with an ear plate 52. The end of the load-bearing rope 6 away from the first anchoring device 4 is connected to the ear plate 52.

[0042] In an optional embodiment, the projection of the second anchoring device 5 on the horizontal plane coincides with the corresponding projection of at least one steel pipe column 2. That is, the position of the second anchoring device 5 along the X-axis and Y-axis is above at least one steel pipe column 2, so that the load on the second anchoring device can be transferred to the steel pipe column 2 more directly.

[0043] In the above embodiments, the support column 32, bottom longitudinal beam 33, bottom cross beam 34, top cross beam 35, diagonal brace 36, and cross beam 51 can all be made of structural steel; for example, the support column 32 can be made of steel pipe column, the bottom longitudinal beam 33 can be made of double H-beam, the bottom cross beam 34 can be made of H-beam, the top cross beam 35 and diagonal brace 36 can be made of I-beam, and the cross beam 51 can be made of double H-beam; the connection methods between the support column 32, bottom longitudinal beam 33, bottom cross beam 34, top cross beam 35 and diagonal brace 36, between the ear plate 52 and the cross beam 51, and between the bottom longitudinal beam 33, bottom cross beam 34, cross beam 51 and the working platform include, but are not limited to, threaded connection, clamp connection or welding connection.

[0044] In an optional embodiment, the system further includes a second pulley block, a winch 7, and a traction rope. The second pulley block is connected to the first anchoring device 4, the winch 7 is connected to the working platform, one end of the traction rope is connected to the winch 7, and the other end of the traction rope passes around the first pulley block 31 and the second pulley block, then loops back to the first pulley block 31 and is reconnected to the winch 7 to form a cycle; the crane trolley is connected to the traction rope.

[0045] In an optional implementation, the lifting rope on the trolley is also driven by the winch 7 on the work platform, thereby further reducing the load that the load-bearing rope 6 needs to bear; it should be noted that the winch 7 responsible for pulling the traction rope and the winch 7 responsible for pulling the lifting rope can be different winches 7.

[0046] In an optional embodiment, the number of load-bearing ropes 6 can be one or more, and the number of pulleys in the first pulley group 31 matches the number of load-bearing ropes 6, for example, the number of pulleys is greater than or equal to the number of load-bearing ropes 6; similarly, the number of traction ropes can also be one or more, and the number of pulleys in the first pulley group 31 and the second pulley group is greater than or equal to the number of traction ropes.

[0047] In an optional embodiment, the working platform includes a steel panel 11, distribution beams 110, Bailey beams 12, and main beams 13. A plurality of distribution beams 110 with lengths along a second direction are spaced apart on the bottom surface of the steel panel 11 along a first direction; a plurality of Bailey beams 12 with lengths along a first direction are spaced apart on the bottom surface of each distribution beam 110 along a second direction; a plurality of main beams 13 with lengths along a second direction are spaced apart on the bottom surface of the Bailey beams 12 along a first direction. Both the first and second directions are horizontal and perpendicular to each other; steel pipe columns 2 are connected to the bottom surface of the main beams 13.

[0048] For example Figures 1 to 3 As shown, the length of the distribution beam 110 is set along the Y-axis direction, and multiple distribution beams 110 are distributed at intervals along the X-axis direction; the length of the Bailey beam 12 is set along the X-axis direction, and multiple Bailey beams 12 are distributed at intervals along the Y-axis direction on the bottom surface of the distribution beam 110; the length of the main beam 13 is set along the Y-axis direction, and multiple main beams 13 are distributed along the X-axis direction on the bottom surface of the Bailey beam 12; and the distribution spacing of the distribution beams 110 is smaller than the distribution spacing of the main beams 13, that is, the main beams 13, Bailey beams 12 and distribution beams 110 intersect and overlap each other perpendicularly upwards, and the spacing gradually decreases; multiple steel pipe columns 2 are arranged at intervals along the Y-axis direction below each main beam 13 to jointly bear the load transmitted from the steel panel 11.

[0049] In the above embodiments, the steel panel 11 is made of patterned steel plate to enhance the anti-slip effect of the steel panel 11.

[0050] In an optional implementation, an elevator and / or tower crane 9 may also be provided on the side of the work platform.

[0051] In an optional implementation, the work platform may also be equipped with one or more of the following: an air compressor room, a material warehouse, an emergency supplies warehouse, a duty room, a rest room, a machinery parking area, a water storage tank, and a portable toilet.

[0052] In an optional embodiment, at least one steel pipe column 2 is inclined relative to its height, with the bottom end of the steel pipe column 2 further away from the arch seat 10 than the top end. For example... Figures 1 to 2 As shown in the figure, the steel pipe column 2 closest to the left along the X-axis is inclined, and the bottom end of the inclined steel pipe column 2 is closer to the top end than the bottom end. Figure 2 To the right side, thus avoiding interference with the slope and mountain.

[0053] In an optional embodiment, a connecting system 23 is provided between two adjacent steel pipe columns 2. The length of the connecting system 23 is set in the horizontal direction, and the two ends of the connecting system 23 are respectively connected to the steel pipe columns 2 on the corresponding sides.

[0054] In the above embodiment, at least one steel pipe column 2 is also connected to the slope, with one end of the connection system 23 connected to the steel pipe column 2 and the other end connected to the slope. For example Figure 1 As shown, the inclined connecting system 23 is connected to the mountain body.

[0055] In the above embodiments, the connecting system 23 is a truss structure.

[0056] In optional embodiments, the connection between the steel pipe column 2 and the ground includes, but is not limited to, pile foundation 21 and ribbed foundation, and the specific choice depends on the site geological conditions.

[0057] The above embodiment also includes a pile foundation 21, the bottom end of which is inserted into the ground, and a top cap 22 is provided at the top of the pile foundation 21. The bottom end of the steel pipe column 2 is connected to the top cap 22.

[0058] In an optional embodiment, a shed 8 is also provided below the working platform. The shed 8 is provided with one or more of the following: a pedestrian passage, an existing driveway, a slag discharge passage, a ventilation pipe, a water supply pipe, a drainage pipe, a power line, and a lighting line.

[0059] The above content is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A construction platform for cliff-top arch supports with a cableway, characterized in that, include: The working platform is set with its normal direction along the height direction and is set at the opening of the arch seat (10); A steel pipe column (2) is installed below the working platform. The top of the steel pipe column (2) is connected to the working platform, and the bottom of the steel pipe column (2) is connected to the ground. Gantry support (3), the bottom of the gantry support (3) is connected to the working platform, and the top of the gantry support (3) is provided with a first pulley group (31). The first anchoring device (4) is installed on the top of the arch seat (10) hole; The second anchoring device (5) is connected to the working platform and is located on the side of the gantry support (3) away from the opening of the arch seat (10). The load-bearing rope (6) has one end connected to the first anchoring device (4) and the other end of the load-bearing rope (6) passes around the first pulley block (31) and is connected to the second anchoring device (5). A lifting trolley is provided on the load-bearing rope (6).

2. A construction platform for cliff-top arch supports with cableways according to claim 1, characterized in that, The gantry support (3) includes a support column (32), a bottom longitudinal beam (33), and a top crossbeam (35); the support column (32) is arranged along the height direction, and at least two support columns (32) are distributed at intervals along the horizontal direction; the bottom longitudinal beam (33) is arranged on the bottom surface of the support column (32), the length of the bottom longitudinal beam (33) is arranged along the length direction of the load-bearing rope (6), and the bottom of the bottom longitudinal beam (33) is connected to the working platform; the length of the top crossbeam (35) is arranged along the distribution direction of the support column (32), and the top crossbeam (35) is connected to the top of at least two support columns (32); the first pulley block (31) is connected to the top crossbeam (35).

3. A construction platform for cliff-top arch supports with a cableway as described in claim 2, characterized in that, The gantry support (3) also includes a diagonal brace (36), the length of which is inclined relative to the height direction; the two ends of the diagonal brace (36) are respectively connected to the support column (32) and the bottom longitudinal beam (33), and / or the two ends of the diagonal brace (36) are respectively connected to the support column (32) and the top crossbeam (35).

4. A cliff-top arch-shaped construction platform with a cableway as described in claim 1, characterized in that, The second anchoring device (5) includes a cross beam (51), the bottom surface of which is connected to the working platform, and the top surface of which is provided with an ear plate (52). The end of the load-bearing rope (6) away from the first anchoring device (4) is connected to the ear plate (52).

5. A cliff-top arch-shaped construction platform with a cableway according to claim 1, characterized in that, It also includes a second pulley block, a winch (7) and a traction rope. The second pulley block is connected to the first anchoring device (4). The winch (7) is connected to the working platform. The traction rope is connected to the winch (7) and passes around the first pulley block (31) and the second pulley block. The crane trolley is connected to the traction rope.

6. A cliff-top arch-shaped construction platform with a cableway according to any one of claims 1 to 5, characterized in that, The number of steel pipe columns (2) is at least two, and at least one of the steel pipe columns (2) is inclined in the length direction relative to the height direction, and the bottom end of the steel pipe column (2) is farther away from the arch seat (10) than the top end of the steel pipe column (2).

7. A cliff-top arch-shaped construction platform with a cableway according to any one of claims 1 to 5, characterized in that, The number of steel pipe columns (2) is at least two, and a connecting system (23) is provided between two adjacent steel pipe columns (2). The length of the connecting system (23) is set in the horizontal direction, and the two ends of the connecting system (23) are respectively connected to the steel pipe columns (2) on the corresponding side.

8. A cliff-top arch construction platform with cableway as described in claim 7, characterized in that, At least one of the steel pipe columns (2) is also provided with a connecting system (23) between it and the slope. One end of the connecting system (23) is connected to the steel pipe column (2), and the other end of the connecting system (23) is connected to the slope.

9. A cliff-top arch-shaped construction platform with a cableway according to any one of claims 1 to 5, characterized in that, The working platform includes a steel panel (11), distribution beams (110), Bailey beams (12), and main beams (13). A plurality of the distribution beams (110) are spaced apart on the bottom surface of the steel panel (11) along a first direction; a plurality of the Bailey beams (12) are spaced apart on the bottom surface of each of the distribution beams (110) along a second direction; a plurality of the main beams (13) are spaced apart on the bottom surface of the Bailey beams (12) along a first direction. The first direction and the second direction are both horizontal and perpendicular to each other; the steel pipe column (2) is connected to the bottom surface of the main beam (13).

10. A cliff-top arch-shaped construction platform with a cableway according to any one of claims 1 to 5, characterized in that, It also includes a pile foundation (21), the bottom end of which is inserted into the ground, and a top cap (22) is provided on the top of the pile foundation (21), and the bottom end of the steel pipe column (2) is connected to the top cap (22).

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