A construction platform for a cliff terrain arch foundation

Abstract

The utility model relates to the field of bridge construction technology, concretely relates to a cliff terrain abutment foundation construction platform, including operation platform, the normal direction along height direction of operation platform is provided, and operation platform sets up at the abutment hole mouth department, be provided with the slag hole on operation platform, steel pipe stand, steel pipe stand sets up below operation platform, and the top of steel pipe stand is connected with operation platform, and the bottom of steel pipe stand is connected with ground, slag hopper, slag hopper sets up above operation platform, and the top of slag hopper is provided with the material receiving mouth, and the bottom of slag hopper is provided with the material pouring mouth, and the top end of slag hole is communicated with the material pouring mouth, slag cylinder, slag cylinder sets up below operation platform, and the top end of slag cylinder is communicated with the bottom of slag hole, and the bottom of slag cylinder extends towards ground, the utility model can overcome when the abutment is located on the precipitous cliff, and the technical problem that construction equipment and vehicle are difficult to move to the abutment nearby, and there is not enough space to carry out excavation and slagging operation.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and in particular to a construction platform for arch foundations in cliff terrain. Background Technology

[0002] When constructing the arch abutment foundation of a bridge, it is necessary to first excavate a pit of the corresponding shape at the predetermined location of the arch abutment foundation, and then pour concrete into the pit to form the arch abutment foundation. A large amount of slag will be generated when excavating the arch abutment foundation, so the slag needs to be transported out of the arch abutment in a timely manner. In order to meet the transportation needs of a large amount of equipment and slag for excavation and slag removal operations, existing technology generally builds a construction access road near the arch abutment.

[0003] However, for some arch bridges, the arch abutments are designed with single-pile embedded foundations and are all located on steep cliffs, with some slopes even being nearly vertical. This makes it difficult to construct access roads, which in turn makes it difficult to move construction equipment and vehicles to the designated locations of the arch abutments. Even if construction equipment and vehicles are directly hoisted to the vicinity of the arch abutments using cableways or tower cranes, there is not enough space near the arch abutments for excavation and muck removal operations. Furthermore, when removing muck, cableways or tower cranes are still needed to transfer the muck to the ground. This operation is time-consuming and labor-intensive and cannot keep up with the pace of excavation and muck removal operations, which can easily slow down the overall construction progress of the arch abutments. Utility Model Content

[0004] The purpose of this utility model is to overcome the technical problem that when the arch seat is located on a steep cliff, it is difficult for construction equipment and vehicles to move near the arch seat, and there is not enough space for excavation and slag removal operations, so as to provide a construction platform for the arch seat foundation on a cliff terrain.

[0005] In a first aspect, this utility model provides a construction platform for an arch foundation in cliff terrain, comprising: The working platform is set along the height direction and is located at the arch abutment opening; a slag chute is provided on the working platform. 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 slag chute is located above the working platform. The top of the slag chute has a receiving port, and the bottom of the slag chute has a discharge port, which is connected to the top of the slag chute. The slag chute is located below the working platform. The top of the slag chute is connected to the bottom of the slag chute, and the bottom of the slag chute extends towards the ground.

[0006] This solution involves setting up a working platform at the arch entrance, with its bottom connected to the ground via steel pipe columns. This provides a stable working surface for equipment movement, material stacking, and other operations required for excavation and muck removal, thereby improving the overall construction speed and efficiency of the arch. When muck removal is required, this solution simply transports the muck from the arch to the chute and pours it from the chute's inlet. The muck then passes through the chute and chute chute by gravity and reaches the ground. Compared to existing technologies that require cableways or tower cranes to transport muck back and forth between the arch and the ground, this solution only requires transporting muck between the arch and the chute, resulting in higher muck removal efficiency and speed. This effectively prevents the muck removal operation from falling behind the excavation pace, which could hinder the overall construction progress of the arch.

[0007] Preferably, the working platform is also equipped with a track, which includes an external section and an internal section. One end of the external section is located above the slag chute, and the other end of the external section extends toward the arch seat opening. One end of the internal section is connected to the end of the external section away from the slag chute, and the other end of the internal section extends into the arch seat opening.

[0008] Because the chute has a certain height, if the muck trucks were to drive directly on the construction platform, they might need the assistance of a crane or excavator to dump the muck into the chute, which would limit the muck dumping speed. Therefore, this solution connects a track to the work platform, with one end leading into the arch cavity and the other end leading directly to the top of the chute. When dumping muck, the muck trucks first travel along the track to the arch cavity and load the muck, then travel along the track to the top of the chute. This allows the muck trucks to dump the muck into the chute more conveniently without needing a crane to lift them to the top of the chute or an excavator to shovel the muck into the chute, thus improving the speed of the muck dumping operation.

[0009] Preferably, the height of the end of the outer section away from the arch entrance is higher than the height of the other end of the outer section.

[0010] This design places the outer section of the tunnel higher at one end and lower at the other along the track length. On the one hand, this reduces the height difference between the outer and inner sections near the arch entrance, facilitating a smooth transition between them and preventing interference between the connection point and the bottom of the muck chute. On the other hand, it also allows the muck chute to move spontaneously into the arch entrance under gravity. When using a winch to pull the muck chute, this design eliminates the need for the winch to actively pull the muck chute into the arch entrance; instead, it only needs to actively pull the muck chute towards the top of the chute hopper, thus reducing the design complexity and manufacturing cost of the traction system.

[0011] 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.

[0012] 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 the slope, thereby improving the support effect of the columns on the work platform and ensuring its stability.

[0013] 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.

[0014] 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.

[0015] 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.

[0016] 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.

[0017] 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.

[0018] 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.

[0019] 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.

[0020] 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.

[0021] Preferably, an elevator and / or tower crane are also provided on the side of the work platform.

[0022] This solution facilitates the movement of personnel and / or equipment onto and off the work platform, while the steel platform effectively provides attachment functionality for elevators and / or tower cranes.

[0023] Preferably, a shed is also provided below the working platform.

[0024] This solution can create a safety passage under the work platform through the shed, and provide protection when the work platform crosses an existing road, preventing objects falling from the work platform from hitting personnel, vehicles or equipment below.

[0025] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention provides a construction platform for arch foundations in cliff terrain. By setting up a working platform at the arch opening, it provides a stable working plane for equipment movement, equipment and material stacking, and other operations required for excavation and muck removal, thereby improving the overall construction speed and efficiency of the arch. When muck removal is required, this invention only needs to transport the muck from the arch to the chute and pour it from the chute's inlet. The muck will then spontaneously pass through the chute and chute cylinder under gravity and reach the ground. Compared with the prior art, this invention has higher muck removal efficiency and speed, effectively avoiding the situation where muck removal cannot keep up with the pace of excavation, thus hindering the overall construction progress of the arch. Attached Figure Description

[0026] Figure 1 This is a side view structural diagram of a construction platform for an arch foundation in cliff terrain according to this utility model; Figure 2 This is a partially enlarged side view of a construction platform for an arch foundation in cliff terrain according to this utility model. Figure 3 This is a top view structural diagram of a construction platform for an arch foundation in cliff terrain according to this utility model; Figure 4 This is a partially enlarged side view of a construction platform for an arch foundation in a cliff-like terrain, according to this utility model. Figure 1 ; Figure 5 This is a partially enlarged side view of a construction platform for an arch foundation in a cliff-like terrain, according to this utility model. Figure 2 ; 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-Slag sluice funnel; 4-Slag sluice tube; 5-Track; 51-Outer section of tunnel; 52-Inner section of tunnel; 53-Column; 54-Bottom support beam; 55-Diagonal brace; 6-Slag removal truck; 7-Elevator; 8-Tower crane; 9-Vault; 10-Arch base. Detailed Implementation

[0027] 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 above-mentioned subject matter 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] Example 1 like Figures 1 to 5 As shown, a construction platform for an arch foundation in a cliff face includes a working platform, steel pipe columns 2, a chute 3, and a chute cylinder 4. The working platform is positioned along the height direction and is located at the opening of the arch 10. A chute hole is provided on the working platform. 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 chute 3 is positioned above the working platform, with a receiving port at its top and a discharge port at its bottom, which communicates with the top of the chute hole. The chute cylinder 4 is positioned below the working platform, with its top connected to the bottom of the chute hole and its bottom extending towards the ground.

[0034] exist Figures 1 to 5 The various directions in this embodiment are also marked using a rectangular coordinate system, where the X-axis and Y-axis are both along the horizontal direction, the Z-axis is along the height direction, and the X-axis, Y-axis and Z-axis are perpendicular to each other.

[0035] 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.

[0036] For example Figures 1 to 2 ,as well as Figure 4 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.

[0037] 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.

[0038] In an optional embodiment, the slag chute 3 is positioned away from the opening of the arch seat 10, for example... Figure 1 As shown, the slag chute 3 can be placed in the area above the two steel pipe columns 2 furthest from the arch seat 10.

[0039] In an optional embodiment, the working platform is also provided with a track 5, which guides the movement of the slag car 6; the track 5 includes an external section 51 and an internal section 52, one end of the external section 51 is located above the slag chute 3, and the other end of the external section 51 extends toward the opening of the arch seat 10; one end of the internal section 52 is connected to the end of the external section 51 away from the slag chute 3, and the other end of the internal section 52 extends into the arch seat 10.

[0040] In the above embodiments, at least two columns 53 are provided below both the outer section 51 and the inner section 52 of the track 5, and the columns 53 are distributed at intervals along the length of the track 5; the end of the column 53 in the outer section 51 away from the outer section 51 is connected to the working platform, and the end of the column 53 in the inner section 52 away from the inner section 52 is connected to the inner slope of the arch seat 10; the specific structural form of the column 53 includes, but is not limited to, steel pipe column, concrete column or steel-concrete structure column.

[0041] In the above embodiment, the end of the pillar 53 of the tunnel section 52 that is away from the tunnel section 52 is inserted into the rock strata of the tunnel slope of the arch seat 10 by at least 50cm.

[0042] In the above embodiment, the height of the end of the outer section 51 away from the arch seat 10 opening is higher than the height of the other end of the outer section 51.

[0043] In the above embodiment, at least one column 53 is further provided with a wedge-shaped pad between it and the track 5. The two sides of the wedge-shaped pad along the height direction abut against the track 5 and the column 53 respectively. The thickness of the wedge-shaped pad (the dimension along the height direction) gradually increases or decreases along the length direction of the track 5. The wedge-shaped pad is used to adjust the slope of the track 5. Its specific position depends on the slope adjustment requirements of the track 5. For example, wedge-shaped pads can be provided between each column 53 and the track 5, or pads can be provided only at some key locations, such as the two ends of the external section 51 and the internal section 52 of the tunnel and the corresponding column 53.

[0044] In the above embodiments, the wedge-shaped pad and the column 53, as well as the wedge-shaped pad and the track 5, are fixedly connected, for example, by welding or by threaded fasteners, thereby ensuring the stability of the connection between the track 5 and the column 53. Alternatively, the position of the wedge-shaped pad along the length of the track 5 can be adjusted. For example, multiple mounting holes are provided on the column 53 along the length of the track 5 for the wedge-shaped pad, and the position of the wedge-shaped pad can be adjusted by connecting it to different mounting holes; or the wedge-shaped pad can be slidably connected to the top of the column 53, with the sliding direction along the length of the track 5, and a jack is provided between the wedge-shaped pad and the column 53. The position of the wedge-shaped pad can be adjusted by the extension and retraction of the jack, thereby enabling real-time changes in the slope of the track 5.

[0045] In the above embodiment, at least two columns 53 are spaced apart along the width direction of the track 5, and crossbeams can be further connected between two adjacent columns 53 along the width direction of the track 5, thereby further increasing the support effect of the columns 53 on the track 5.

[0046] In the above embodiment, at least two adjacent columns 53 are also connected by diagonal braces 55. The specific location and parameters of the diagonal braces 55 are determined according to the support requirements of the track 5, and as shown in the figure... Figure 5 As shown, two or more diagonal braces 55 can be set between two adjacent columns 53 to form an X-shaped structure.

[0047] In the above embodiment, a bottom support beam 54 is provided on the working platform. The bottom support beam 54 is arranged along the length direction of the track 5. The bottom support beam 54 is connected to the working platform through multiple clamps that are spaced apart along its length direction. Each column 53 located above the working platform is connected to the top surface of the bottom support beam 54 so as to transfer the load to the working platform more evenly.

[0048] In an optional implementation, an elevator 7 and / or a tower crane 8 are also provided on the side of the work platform.

[0049] 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.

[0050] 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... Figure 1 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 1 To the right side, thus avoiding interference with the slope and mountain.

[0051] 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.

[0052] 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.

[0053] In the above embodiments, the connecting system 23 is a truss structure.

[0054] 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.

[0055] 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.

[0056] In an optional embodiment, the cross-sectional dimensions (dimensions along the X and Y axes) of the upper end of the slag chute 3 are larger than the cross-sectional dimensions (dimensions along the X and Y axes) of its lower end, so as to reduce the difficulty of pouring slag into the slag chute 3.

[0057] In an optional embodiment, the slag chute 4 is susceptible to wear due to the impact of slag material. Therefore, the slag chute 4 can be detachably connected to the slag chute hole to facilitate the replacement of damaged slag chute 4. Specific forms of detachable connection include, but are not limited to, flange connection, tenon connection, or snap-fit ​​connection.

[0058] In an optional embodiment, the distance between the lower end of the slag chute 4 and the ground is greater than or equal to 2m and less than or equal to 3m. This can prevent the slag from splashing everywhere due to the bottom of the slag chute 4 being too high, thereby damaging the surrounding equipment and structure. It can also prevent the slag from not having enough space to disperse due to the bottom of the slag chute 4 being too low, thereby causing the bottom of the slag chute 4 to be easily blocked, and not having enough operating space to transfer the slag.

[0059] In an optional embodiment, a shed 9 is also provided below the working platform. The shed 9 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.

[0060] 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 an arch foundation in cliff terrain, 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 slag chute is set on the working platform; 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. Slag chute (3), the slag chute (3) is set above the working platform, the top of the slag chute (3) is provided with a receiving port, the bottom of the slag chute (3) is provided with a discharge port, and the discharge port is connected to the top of the slag chute. Slag chute (4), the slag chute (4) is located below the working platform, the top of the slag chute (4) is connected to the bottom of the slag chute hole, and the bottom of the slag chute (4) extends toward the ground.

2. The cliff-top arch foundation construction platform according to claim 1, characterized in that, The working platform is also equipped with a track (5), which includes an outer section (51) and an inner section (52). One end of the outer section (51) is located above the slag chute (3), and the other end of the outer section (51) extends toward the opening of the arch seat (10). One end of the inner section (52) is connected to the end of the outer section (51) away from the slag chute (3), and the other end of the inner section (52) extends into the arch seat (10).

3. The cliff-top arch foundation construction platform according to claim 2, characterized in that, The height of the end of the outer section (51) away from the opening of the arch seat (10) is higher than the height of the other end of the outer section (51).

4. A construction platform for an arch foundation in cliff terrain according to any one of claims 1 to 3, 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).

5. A construction platform for an arch foundation in cliff terrain according to any one of claims 1 to 3, 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.

6. A construction platform for an arch foundation in cliff terrain according to claim 5, 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.

7. A construction platform for an arch foundation in cliff terrain according to any one of claims 1 to 3, 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).

8. A construction platform for an arch foundation in cliff terrain according to any one of claims 1 to 3, 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).

9. A construction platform for an arch foundation in cliff terrain according to any one of claims 1 to 3, characterized in that, The side of the work platform is also equipped with an elevator (7) and / or a tower crane (8).

10. A construction platform for an arch foundation in a cliff face according to any one of claims 1 to 3, characterized in that, A shed (9) is also provided below the work platform.

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