A cable temporary support and temporary support system for urban subway construction

Abstract

The utility model relates to the field of urban subway foundation pit excavation, especially a kind of cable temporary support and temporary support system for urban subway construction;The cable temporary support includes first support platform, second support platform and several vertical poles, and several vertical poles are arranged along the annular arrangement of first support platform, first support platform is detachably connected with vertical pole, and second support platform is detachably connected with vertical pole;First support platform is located above second support platform, and first support platform is arranged with second support platform at intervals, and second support platform is arranged with the end of vertical pole at intervals, and first support platform is arranged with the end of vertical pole at intervals;Cable can be replaced from second support platform to first support platform, and construction efficiency is improved;The temporary support system includes several cable temporary supports, and is arranged along the direction of cable, and several supports are arranged at intervals;Through the support of several cable temporary supports to cable, the foundation pit under single cable temporary support can be removed to dig under cable.

Description

Technical Field

[0001] This utility model relates to the field of urban subway foundation pit excavation, and in particular to a temporary cable support and temporary support system for urban subway construction. Background Technology

[0002] During the construction of urban subways, the laying of various cables within the urban area has already been completed. When excavating the foundation pit, in order to prevent the cables from breaking or malfunctioning during construction and thus adversely affecting the normal lives of surrounding residents, it is necessary to effectively support the cables. Currently, for cables spanning both sides of the foundation pit, the usual solution is to erect crossbeams on both sides of the foundation pit and support the cables on the crossbeams to prevent them from breaking due to being suspended in the air.

[0003] However, during the excavation of the foundation pit, when the cable is relatively close to the excavation surface, the erection of crossbeams on both sides of the foundation pit may interfere with the construction process, thereby limiting the excavation speed of the foundation pit under the cable and affecting the overall construction progress. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology, where when the cable is relatively close to the excavation surface, the erection of crossbeams on both sides of the foundation pit may interfere with the construction process, thereby limiting the excavation speed of the foundation pit under the cable and affecting the overall construction progress. This invention provides a temporary cable support and temporary support system for urban subway construction.

[0005] In a first aspect, this utility model provides a temporary cable support for urban subway construction, comprising: A first support platform, a second support platform, and a plurality of vertical rods are provided. The plurality of vertical rods are arranged circumferentially along the first support platform. The first support platform is detachably connected to the vertical rods, and the second support platform is detachably connected to the vertical rods. The first support platform is located above the second support platform. The first support platform and the second support platform are spaced apart. The second support platform and the ends of the vertical rods are spaced apart. The ends of the first support platform and the vertical rods are spaced apart.

[0006] Preferably, the first support platform is at least 50cm away from the end of the vertical rod, and the second support platform is at least 50cm away from the end of the vertical rod.

[0007] Preferably, the vertical rod is provided with a first connecting part and a second connecting part, the first connecting part and the second connecting part are spaced apart, the first connecting part is detachably connected to the first support platform, and the second connecting part is detachably connected to the second support platform.

[0008] Preferably, both the first connecting part and the second connecting part include an annular component, the vertical rod passes through the annular component, the annular component is connected to the vertical rod, and the annular component is provided with a connecting member, so that the first support platform or the second support platform can be detachably connected to the connecting member respectively.

[0009] Preferably, the annular component has a plurality of connecting holes arranged in a circumferential direction, the connecting component includes connecting bolts, the connecting bolts pass through the connecting holes, the connecting bolts can be connected to the first support platform, and the connecting bolts can be connected to the second support platform.

[0010] Preferably, the first support platform is provided with a plurality of first connecting blocks, which can be connected to the connecting bolts, and the second support platform is provided with a plurality of second connecting blocks, which can be connected to the connecting bolts.

[0011] Preferably, both the first support platform and the second support platform include a frame-shaped structural member, which includes four rods connected end to end in sequence.

[0012] Preferably, the vertical rod is connected to the corner of the frame structure.

[0013] Preferably, the bottom of the vertical rod is provided with a tapered portion.

[0014] In a second aspect, the present invention provides a temporary support system, including the aforementioned temporary cable support for urban subway construction, wherein several of the supports are arranged at intervals along the cable route.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model provides a temporary cable support for urban subway construction. When excavating soil close to the excavation plane, multiple vertical poles are inserted vertically into the soil, allowing a first support platform and a second support platform to be fixed at a specified height. The cable is supported by either the first or second support platform. In use, the cable is first supported on the second support platform. After the pit is excavated downwards, the cable is supported on the first support platform. The first and second support platforms are detachably connected to the vertical poles, allowing workers to move the cable from the second support platform to the first support platform, thereby improving the construction efficiency of the pit excavation. The connection between the second and second support platforms and the vertical poles ensures the structural stability of the temporary cable support and prevents the excavation speed below the cable from being limited.

[0016] 2. This utility model provides a temporary support system. Along the cable's direction, several temporary cable supports are arranged at intervals at the bottom of the cable. The cable is first supported by a second support platform. When excavating the soil in the pit below the cable, the temporary cable supports at the excavation site are disassembled, and the temporary cable supports on both sides of the excavation site take over the support of the cable. After excavation at the excavation site, the temporary cable supports are reinstalled at the disassembled locations, and the cable is supported by the first support platform. The soil in the pit below the cable is excavated in rotation. Workers can complete the excavation of the pit for cable placement without damaging the cable, which improves the construction speed and shortens the construction period. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a temporary cable support for urban subway construction according to the present invention; Figure 2 This is a schematic diagram of the first connecting part of a temporary cable support for urban subway construction according to the present invention. Figure 3 This is a schematic diagram of the second connection part of a temporary cable support for urban subway construction according to the present invention; Figure 4 This is a schematic diagram of the first support platform of a temporary cable support for urban subway construction according to the present invention. Figure 5 This is a schematic diagram of the first support platform of a temporary cable support for urban subway construction according to the present invention. Figure 6 This is a schematic diagram of the conical part of a temporary cable support for urban subway construction according to the present invention. Figure 7 This is a structural schematic diagram of a temporary support system according to the present invention.

[0018] Marked in the image: 1-First support platform, 11-First connecting block, 2-Second support platform, 21-Second connecting block, 3-Vertical rod, 31-First connecting part, 32-Second connecting part, 33-Connector, 4-Conical part. Detailed Implementation

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] Example 1 like Figures 1-6 As shown, a temporary cable support for urban subway construction is specifically composed of a first support platform 1, a second support platform 2, and several vertical rods 3. The several vertical rods 3 are arranged circumferentially along the first support platform 1. The first support platform 1 and the vertical rods 3 are detachably connected, and the second support platform 2 and the vertical rods 3 are detachably connected. The first support platform 1 is located above the second support platform 2. The first support platform 1 and the second support platform 2 are spaced apart. The ends of the second support platform 2 and the vertical rods 3 are spaced apart.

[0026] When excavating soil surfaces close to the excavation plane, multiple vertical poles 3 are inserted vertically into the soil to fix the first support platform 1 and the second support platform 2 at a specified height, supporting the cable through either the first support platform 1 or the second support platform 2. In use, the cable is first supported on the second support platform 2, and after the foundation pit is excavated downwards, the cable is supported on the first support platform 1. The first support platform 1 and the second support platform 2 are detachably connected to the vertical poles 3, allowing workers to transfer the cable from the second support platform 2 to the first support platform 1, thereby improving the construction efficiency of the foundation pit excavation. The connection between the second support platform 2 and the vertical poles 3 ensures the structural stability of the temporary cable support.

[0027] Specifically, both the first support platform 1 and the second support platform 2 are rectangular platforms, with four vertical rods 3 connected to the four corners of each rectangular platform. The distance between the first support platform 1 and the second support platform 2 is 1m, and the total length of the vertical rods 3 is 2m. When the first support platform 1 does not support the cable, it serves as a reinforcing structure to make the temporary cable support more stable. When the second support platform 2 does not support the cable, it serves as a reinforcing structure to make the temporary cable support more stable.

[0028] In one or more embodiments, the first support platform 1 is 50cm away from the end of the vertical pole 3, and the second support platform 2 is 50cm away from the end of the vertical pole 3. In use, the cable is confined between the two vertical poles 3 to prevent the cable from falling out of the first support platform 1 or the second support platform 2. The bottom end of the vertical pole 3 is embedded in the soil, and the distance of the vertical pole 3 inserted into the soil can be adjusted according to the height of the cable above the soil surface, so that the vertical pole 3 supports the first support platform 1 or the second support platform 2 to an appropriate height, thereby supporting the cable.

[0029] In one or more embodiments, the vertical rod 3 is provided with a first connecting portion 31 and a second connecting portion 32, the first connecting portion 31 and the second connecting portion 32 being spaced apart. The first connecting portion 31 is detachably connected to the first support platform 1, and the second connecting portion 32 is detachably connected to the second support platform 2. The first connecting portion 31 enables the first support platform 1 and the vertical rod 3 to be detachably connected, and the second connecting portion 32 enables the second support platform 2 to be detachably connected to the vertical rod 3. Specifically, both the first connecting portion 31 and the second connecting portion 32 are annular components, the vertical rod 3 passes through the annular component, the annular component is connected to the vertical rod 3, and the annular component is provided with a connecting member 33, allowing the first support platform 1 or the second support platform 2 to be detachably connected to the connecting member 33 respectively. Connection: Several connecting holes are arranged circumferentially around the center of the annular component. The connecting holes are vertically connected. The connecting component 33 is a connecting bolt, which passes through the connecting holes. The connecting bolt can be connected to the first support platform 1 and the second support platform 2. Through the bolt connection, the first support platform 1 can be quickly connected to the vertical rod 3, and the second support platform can be quickly connected to the vertical rod 3. In actual installation, the first support platform 1 is located above the annular component, so that the annular component supports the bottom of the first support platform 1, which is convenient for the first support platform 1 to be assembled and disassembled. The second support platform 2 is located above the annular component, so that the annular component supports the bottom of the second support platform 2, which is convenient for the second support platform 2 to be assembled and disassembled.

[0030] Specifically, the vertical rod 3 is a cylindrical rod with connecting holes distributed around its circumference. Any connecting hole can be quickly connected to the vertical rod 3 via the first support platform 1 or the second support platform 2, avoiding the need for multiple rotations and adjustments to the vertical rod 3 during use.

[0031] In an optional embodiment, a first connecting block 11 is provided at each corner of the first support platform 1, and the first connecting block 11 can be connected to the connecting bolt. A plurality of second connecting blocks 21 are provided at each corner of the second support platform 2, and the second connecting blocks 21 can be connected to the connecting bolt. This allows the first support platform 1 and the vertical rod 3 to be quickly assembled and disassembled, and the second support platform 2 and the vertical rod 3 to be quickly assembled and disassembled. Through holes for passing through the connecting bolts are respectively opened on the first connecting block 11 and the second connecting block 21.

[0032] In one or more embodiments, the first support platform 1 and the second support platform 2 are both frame-shaped structural components. The frame-shaped structural component consists of four rods connected end to end, which reduces the weight of the first support platform 1 and the second support platform 2 and facilitates on-site assembly and disassembly. The vertical rod 3 is connected to the corner of the frame-shaped structural component. In optional embodiments, the four rods can be detachably connected for easy handling. The rectangular frame can also be a circular ring or a solid plate.

[0033] In one or more embodiments, the bottom of the vertical rod 3 is provided with a tapered portion 4, which is conical, and the tip of the tapered portion 4 is located at the end of the vertical rod 3.

[0034] In use, first insert the bottom end of the vertical rod 3 into the soil, and determine the insertion depth of the vertical rod 3 by the position of the first connecting part 31 or the second connecting part 32. Then install the first support platform 1 and the second support platform 2 so that the first support platform 1 or the second support platform 2 supports the cable.

[0035] Example 2 like Figure 7 The temporary support system shown includes a temporary cable support for urban subway construction as described in Embodiment 1, wherein several of the supports are arranged at intervals along the direction of the cable.

[0036] Along the cable's route, several temporary cable supports are spaced apart at the bottom of the cable. The cable is initially supported by the second support platform 2. When excavating the soil in the pit below the cable, the temporary cable supports at the excavation site are dismantled, and the temporary cable supports on both sides of the excavation site take over the support of the cable. After excavation at the excavation site, the temporary cable supports are reinstalled at the dismantled site, and the cable is supported by the first support platform 1. By alternating the excavation of the soil in the pit below the cable, the workers can complete the excavation of the pit for cable placement without damaging the cable, which improves the construction speed and shortens the construction period.

[0037] After using the second support platform 2 to support the cable, the temporary cable support can be gradually removed after placing a crossbeam on the cable and supporting it through the crossbeam.

[0038] The above description 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 temporary cable support for urban subway construction, characterized in that, include: A first support platform (1), a second support platform (2), and a plurality of vertical rods (3), wherein the plurality of vertical rods (3) are arranged circumferentially along the first support platform (1), the first support platform (1) and the vertical rods (3) are detachably connected, and the second support platform (2) and the vertical rods (3) are detachably connected; the first support platform (1) is located above the second support platform (2), the first support platform (1) and the second support platform (2) are spaced apart, the ends of the second support platform (2) and the vertical rods (3) are spaced apart, and the ends of the first support platform (1) and the vertical rods (3) are spaced apart.

2. A temporary cable support for urban subway construction according to claim 1, characterized in that, The first support platform (1) is at least 50 cm away from the end of the vertical rod (3), and the second support platform (2) is at least 50 cm away from the end of the vertical rod (3).

3. A temporary cable support for urban subway construction according to claim 1, characterized in that, The vertical rod (3) is provided with a first connecting part (31) and a second connecting part (32). The first connecting part (31) and the second connecting part (32) are spaced apart. The first connecting part (31) is detachably connected to the first support platform (1), and the second connecting part (32) is detachably connected to the second support platform (2).

4. A temporary cable support for urban subway construction according to claim 3, characterized in that, Both the first connecting part (31) and the second connecting part (32) include an annular component. The vertical rod (3) passes through the annular component and is connected to the vertical rod (3). The annular component is provided with a connector (33). The first support platform (1) or the second support platform (2) can be detachably connected to the connector (33) respectively.

5. A temporary cable support for urban subway construction according to claim 4, characterized in that, The annular component has a plurality of connecting holes arranged in a circumferential direction. The connecting component (33) includes a connecting bolt, which passes through the connecting hole. The connecting bolt can be connected to the first support platform (1) and the connecting bolt can be connected to the second support platform (2).

6. A temporary cable support for urban subway construction according to claim 5, characterized in that, The first support platform (1) is provided with a plurality of first connecting blocks (11), which can be connected to the connecting bolts. The second support platform (2) is provided with a plurality of second connecting blocks (21), which can be connected to the connecting bolts.

7. A temporary cable support for urban subway construction according to claim 1, characterized in that, Both the first support platform (1) and the second support platform (2) include frame-shaped structural members, which include four rods connected end to end in sequence.

8. A temporary cable support for urban subway construction according to claim 7, characterized in that, The vertical rod (3) is connected to the corner of the frame structure.

9. A temporary cable support for urban subway construction according to claim 1, characterized in that, The bottom of the vertical rod (3) is provided with a tapered part (4).

10. A temporary support system, characterized in that, The invention includes a temporary cable support for urban subway construction as described in any one of claims 1-9, wherein several of the supports are arranged at intervals along the direction of the cable.

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