Gantry crane track beam structure for subway shield hoisting hole

Abstract

The utility model discloses a gantry crane track beam structure for a subway shield hoisting hole, which comprises a track, a bottom beam, an underground diaphragm wall and a retaining wall, the underground diaphragm wall and the retaining wall are arranged at a subway station, the shield hoisting hole is enclosed by the underground diaphragm wall and the retaining wall, and the bottom beam is arranged at the top of the shield hoisting hole in a spanning manner. One end of the bottom beam is supported on the underground diaphragm wall on one side of the shield hoisting hole to form a first supporting end, the other end of the bottom beam is supported on the retaining wall on the other side of the shield hoisting hole to form a second supporting end, and the two ends of the track are fixed to the first supporting end and the second supporting end respectively through first fixing mechanisms. The two ends of the track extend to the road surfaces on the two sides of the shield hoisting hole correspondingly, and the middle section of the track is fixed to the middle section of the bottom beam through a second fixing mechanism. According to the gantry crane track beam structure for the subway shield hoisting hole, the feeding and discharging convenience of a gantry crane is improved, the transfer distance of the gantry crane is increased, and the bearing strength is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of subway construction, in particular to a gantry crane track beam structure used for a subway shield hoisting hole. Background Art

[0002] With the gradual deepening of urbanization, subways in large and medium-sized cities are becoming more and more popular. Subway projects are generally located under the main roads of the city, and the sections between two stations are basically constructed using the shield method. In order to ensure the normal construction of the shield section, the shield hoisting holes reserved at the ends of the large and small mileages of conventional subway stations can only be closed after the completion of the section project; during the shield construction stage, the backfilled station is often used as the shield starting site, material equipment and semi-finished product stacking site, and the gantry crane is used to lift the shield segments and other materials through the shield hoisting holes.

[0003] The existing application number is 202011329142.4, which is an assembled gantry crane track foundation for the expanded end of a subway station and its construction method. The gantry crane track is on the inclined support of the side wall, but has the following shortcomings: 1) Objects can only be lifted on the side of the side wall, and the loading and unloading space of the gantry crane is affected by the side wall, that is, loading and unloading are inconvenient; 2) The gantry crane track is installed on the inclined support of the side wall, which makes it difficult to achieve lifting construction across the entire shield lifting hole, and the transportation distance of the gantry crane is limited; 3) The bearing strength of the gantry crane track is not high. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a gantry crane track beam structure for a subway shield hoisting hole, which improves the convenience of loading and unloading of the gantry crane, increases the transfer distance of the gantry crane, and enhances the bearing strength.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A gantry crane track beam structure for a subway shield hoisting hole comprises a track, a bottom beam, and a ground-connected wall and a retaining wall arranged in a subway station. The ground-connected wall and the retaining wall enclose the shield hoisting hole. The bottom beam is arranged across the top of the shield hoisting hole, and one end of the bottom beam is supported on the ground-connected wall on one side of the shield hoisting hole to form a first supporting end, and the other end is supported on the retaining wall on the other side of the shield hoisting hole to form a second supporting end. Both ends of the track are respectively fixed to the first supporting end and the second supporting end by a first fixing mechanism, and both ends of the track extend to the road surfaces on both sides of the shield hoisting hole, respectively, and the middle section of the track is fixed to the middle section of the bottom beam by a second fixing mechanism.

[0007] As a further improvement of the above technical solution:

[0008] The ground connection wall is provided with a first groove with an opening facing upward, and the first supporting end is located in the first groove.

[0009] Plain concrete is filled between the first groove and the first supporting end.

[0010] The retaining wall is provided with a second groove with an opening facing upward, and the second supporting end is located in the second groove.

[0011] Plain concrete is filled between the second groove and the second supporting end.

[0012] The bottom beam is a Bailey beam, the bottoms of the first groove and the second groove are both provided with pads, the bottoms of the first support end and the second support end are both provided with a plurality of support seats, the support seats are supported on corresponding pads, and flexible pads are provided between the support seats and the pads.

[0013] An I-beam is disposed on the top of each of the first supporting end and the second supporting end, and both ends of the track are fixed to the corresponding I-beam by a first fixing mechanism.

[0014] The first fixing mechanism includes an embedded part, a first fastener and a first pressure plate arranged in pairs. The embedded part is embedded in the ground-connected wall or the retaining wall. The paired first pressure plates are fixed to the embedded part by the first fastener and are respectively pressed on both sides of the bottom of the track.

[0015] The second fixing mechanism includes a second pressure plate arranged in a pair, and the paired second pressure plates are fixed on the bottom beam by second fasteners and are respectively pressed against the two sides of the bottom of the track. An upper supporting surface is provided on the top of the second pressure plate, and the side of the upper supporting surface close to the track is higher than the other side. A lower pressure block is provided on the second fastener, and the upper surface of the lower pressure block is horizontally abutted against the second fastener, and the lower surface is obliquely abutted against the upper supporting surface.

[0016] The ground-connected wall and the retaining wall are backfilled with earth on the side away from the shield lifting hole to form an earth layer. The top wall of the earth layer is provided with a plain concrete cushion layer. The two ends of the track are respectively supported on the corresponding plain concrete cushion layers. The plain concrete cushion layer on the retaining wall is provided with a track-blocking column, and the track-blocking column is against the end surface of the track.

[0017] Compared with the prior art, the advantages of the utility model are:

[0018] The utility model discloses a gantry crane track beam structure for a subway shield lifting hole. On the one hand, a bottom beam is straddled on the top of the shield lifting hole, and a track is fixed on the bottom beam and also straddled on the top of the shield lifting hole, and both ends of the track are respectively extended to the road surface on both sides of the shield lifting hole, so that the track can be set at a required position away from the side wall to avoid the gantry crane from being affected by the side wall when loading and unloading materials, thereby improving the convenience of the gantry crane in loading and unloading materials; on the other hand, the track straddled on the top of the shield lifting hole enables the gantry crane on it to span the entire shield lifting hole for lifting construction, thereby increasing the transportation distance of the gantry crane; on the third aspect, the two ends of the bottom beam are respectively supported on the ground connection wall on one side of the shield lifting hole and the retaining wall on the other side of the shield lifting hole, thereby enhancing the bearing strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model is a schematic diagram of the top view of the structure of the gantry crane track beam used for the hoisting hole of the subway shield.

[0020] Figure 2 It is a schematic diagram of the main structure of a gantry crane track beam structure used for a subway shield hoisting hole of the utility model.

[0021] Figure 3 The utility model is a side structural schematic diagram of a gantry crane track beam structure used for a subway shield hoisting hole.

[0022] Figure 4 It is a structural schematic diagram of the second fixing mechanism of the gantry crane track beam structure used for the subway shield hoisting hole of the utility model.

[0023] Figure 5 It is a structural schematic diagram of a first fixing mechanism of a gantry crane track beam structure used for a subway shield hoisting hole of the utility model.

[0024] The symbols in the figure represent:

[0025] 1. Track; 2. Bottom beam; 21. First supporting end; 22. Second supporting end; 23. Support seat; 24. Flexible pad; 25. I-beam; 3. Ground-connected wall; 31. First groove; 4. Subway station; 5. Retaining wall; 51. Second groove; 6. Shield lifting hole; 7. First fixing mechanism; 71. Embedded parts; 72. First fastener; 73. First pressure plate; 8. Second fixing mechanism; 81. Second pressure plate; 811. Upper supporting surface; 82. Second fastener; 821. Lower pressure block; 9. Pad; 91. Earthwork layer; 92. Plain concrete cushion layer; 93. Track blocking column. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "assemble", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Figures 1 to 5 An embodiment of the utility model of a gantry crane track beam structure for a subway shield hoisting hole is shown. The gantry crane track beam structure for a subway shield hoisting hole of this embodiment includes a track 1, a bottom beam 2, and a ground-connected wall 3 and a retaining wall 5 arranged at a subway station 4. The ground-connected wall 3 and the retaining wall 5 enclose a shield hoisting hole 6. The bottom beam 2 is arranged across the top of the shield hoisting hole 6, and one end of the bottom beam 2 is supported on the ground-connected wall 3 on one side of the shield hoisting hole 6 to form a first supporting end 21, and the other end is supported on the retaining wall 5 on the other side of the shield hoisting hole 6 to form a second supporting end 22. The two ends of the track 1 are respectively fixed to the first supporting end 21 and the second supporting end 22 by a first fixing mechanism 7, and the two ends of the track 1 extend to the road surface on both sides of the shield hoisting hole 6, respectively, and the middle section of the track 1 is fixed to the middle section of the bottom beam 2 by a second fixing mechanism 8.

[0031] On the one hand, the bottom beam 2 is straddled across the top of the shield lifting hole 6, and the track 1 is fixed on the bottom beam 2 and also straddled across the top of the shield lifting hole 6, and the two ends of the track 1 respectively extend to the road surface on both sides of the shield lifting hole 6. In this way, the track 1 can be set at the required position away from the side wall to avoid the gantry crane from being affected by the side wall when loading and unloading materials, thereby improving the convenience of the gantry crane loading and unloading materials; on the other hand, the track 1 straddled across the top of the shield lifting hole 6 enables the gantry crane on it to span the entire shield lifting hole 6 for lifting construction, thereby increasing the transportation distance of the gantry crane; thirdly, the two ends of the bottom beam 2 are respectively supported on the ground-connected wall 3 on one side of the shield lifting hole 6 and the retaining wall 5 on the other side of the shield lifting hole 6, thereby enhancing the bearing strength.

[0032] Furthermore, in this embodiment, the ground connecting wall 3 is provided with a first groove 31 with an upward opening, and the first support end 21 is located in the first groove 31. The first groove 31 has a limiting effect on the first support end 21 of the bottom beam 2, thereby improving the stability of the first support end 21.

[0033] Furthermore, in this embodiment, if Figure 3 As shown, plain concrete is filled between the first groove 31 and the first support end 21. The first groove 31 and the first support end 21 are fixed into an integral structure, which further improves the stability of the first support end 21, thereby improving the bearing strength of the track 1.

[0034] Furthermore, in this embodiment, if Figure 2 As shown, the retaining wall 5 is provided with a second groove 51 with an opening facing upward, and the second support end 22 is located in the second groove 51. The second groove 51 has a limiting effect on the two support ends 22 of the bottom beam 2, thereby improving the stability of the second support end 22.

[0035] Furthermore, in this embodiment, plain concrete is filled between the second groove 51 and the second support end 22 to fix the second groove 51 and the second support end 22 into an integral structure, further improving the stability of the second support end 22, thereby improving the bearing strength of the track 1.

[0036] Furthermore, in this embodiment, the bottom beam 2 is a Bailey beam, the bottoms of the first groove 31 and the second groove 51 are both provided with pads 9, the bottoms of the first support end 21 and the second support end 22 are both provided with a plurality of support seats 23, the support seats 23 are supported on the corresponding pads 9, and a flexible pad 24 is provided between the support seats 23 and the pads 9. Preferably, the flexible pad 24 is a rubber pad.

[0037] Furthermore, in this embodiment, if Figure 3As shown, the tops of the first support end 21 and the second support end 22 are both provided with I-beams 25, and the two ends of the track 1 are fixed to the corresponding I-beams 25 through the first fixing mechanism 7. Preferably, the I-beams 25 are arranged vertically with the bottom beam 2, and the I-beams 25 are fixedly connected with the bottom beam 2. Both sides of the top of the I-beams 25 are convenient for opening holes, so as to facilitate the fixing operation of the first fixing mechanism 7.

[0038] Furthermore, in this embodiment, if Figure 5 As shown, the first fixing mechanism 7 includes an embedded part 71, a first fastener 72 and a first pressure plate 73 arranged in pairs. The embedded part 71 is embedded in the ground-connected wall 3 or the retaining wall 5. The paired first pressure plates 73 are fixed to the embedded part 71 through the first fastener 72 and are respectively pressed on both sides of the bottom of the track 1. Specifically, the cross section of the track 1 is I-shaped. Preferably, the first fastener 72 is a fastening nut, a threaded column is provided on the top of the embedded part 71, the first pressure plate 73 is sleeved on the threaded column, the fastening nut is threadedly connected to the threaded column, and presses the first pressure plate 73, so that the first pressure plate 73 is pressed on the track 1. The first fixing mechanism 7 has a simple structure and is easy to disassemble and assemble.

[0039] Furthermore, in this embodiment, if Figure 4 As shown, the second fixing mechanism 8 includes a second pressing plate 81 arranged in pairs, the second pressing plates 81 are fixed on the bottom beam 2 by second fasteners 82, and are respectively pressed on the two sides of the bottom of the track 1, the top of the second pressing plate 81 is provided with an upper support surface 811, the side of the upper support surface 811 close to the track 1 is higher than the other side, and the second fastener 82 is provided with a lower pressing block 821, the upper surface of the lower pressing block 821 is horizontally abutted with the second fastener 82, and the lower surface is obliquely abutted with the upper support surface 811. Preferably, the second fastener 82 is a fastening bolt, which is passed through the top of the bottom beam 2, the second pressing plate 81 and the lower pressing block 821. The second fastener 82 is locked so that the upper surface of the lower pressing block 821 is horizontally abutted with the second fastener 82, and the lower surface is obliquely abutted with the upper support surface 811, so that the second pressing plate 81 is pressed on the track 1. Furthermore, due to the oblique pressure of the upper support surface 811 , the two second pressure plates 81 in a pair have opposite force components, which have a clamping effect on the track 1 , further improving the stability and bearing strength of the track 1 .

[0040] Furthermore, in the present embodiment, the ground-connected wall 3 and the retaining wall 5 are backfilled with earth on one side away from the shield hoisting hole 6 to form an earth layer 91, and a plain concrete cushion layer 92 is provided on the top wall of the earth layer 91. Both ends of the track 1 are respectively supported on the corresponding plain concrete cushion layers 92, and a track-blocking column 93 is provided on the plain concrete cushion layer 92 on the retaining wall 5, and the track-blocking column 93 is against the end face of the track 1.

[0041] Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the art can use the above disclosed technical content to make many possible changes and modifications to the technical solution of the present invention without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention should fall within the scope of protection of the technical solution of the present invention.

Claims

1. A gantry crane track beam structure for a subway shield hoisting hole, characterized in that: The invention comprises a track (1), a bottom beam (2), and a ground-connected wall (3) and a retaining wall (5) arranged at a subway station (4); the ground-connected wall (3) and the retaining wall (5) enclose a shield hoisting hole (6); the bottom beam (2) is arranged across the top of the shield hoisting hole (6); one end of the bottom beam (2) is supported on the ground-connected wall (3) on one side of the shield hoisting hole (6) to form a first supporting end (21); the other end is supported on the retaining wall (5) on the other side of the shield hoisting hole (6) to form a second supporting end (22); the two ends of the track (1) are respectively fixed to the first supporting end (21) and the second supporting end (22) by a first fixing mechanism (7); the two ends of the track (1) respectively extend to the road surface on both sides of the shield hoisting hole (6); and the middle section of the track (1) is fixed to the middle section of the bottom beam (2) by a second fixing mechanism (8).

2. The gantry crane track beam structure for a subway shield hoisting hole according to claim 1 is characterized in that: The ground-connected wall (3) is provided with a first groove (31) with an opening facing upward, and the first supporting end (21) is located in the first groove (31).

3. The gantry crane track beam structure for a subway shield hoisting hole according to claim 2 is characterized in that: Plain concrete is filled between the first groove (31) and the first supporting end (21).

4. The gantry crane track beam structure for a subway shield hoisting hole according to claim 2 is characterized in that: The retaining wall (5) is provided with a second groove (51) with an opening facing upward, and the second supporting end (22) is located in the second groove (51).

5. The gantry crane track beam structure for a subway shield hoisting hole according to claim 4 is characterized in that: Plain concrete is filled between the second groove (51) and the second supporting end (22).

6. The gantry crane track beam structure for a subway shield hoisting hole according to claim 4 is characterized in that: The bottom beam (2) is a Bailey beam, the bottoms of the first groove (31) and the second groove (51) are both provided with pads (9), the bottoms of the first support end (21) and the second support end (22) are both provided with a plurality of support seats (23), the support seats (23) are supported on corresponding pads (9), and a flexible pad (24) is provided between the support seats (23) and the pads (9).

7. The gantry crane track beam structure for a subway shield hoisting hole according to claim 4 is characterized in that: An I-beam (25) is provided at the top of each of the first supporting end (21) and the second supporting end (22), and both ends of the track (1) are fixed to the corresponding I-beam (25) via a first fixing mechanism (7).

8. The gantry crane track beam structure for a subway shield hoisting hole according to any one of claims 1 to 7, characterized in that: The first fixing mechanism (7) comprises an embedded part (71), a first fastener (72) and a pair of first pressing plates (73); the embedded part (71) is embedded in the ground-connected wall (3) or the retaining wall (5); the pair of first pressing plates (73) are fixed to the embedded part (71) by the first fastener (72) and are respectively pressed against two sides of the bottom of the track (1).

9. The gantry crane track beam structure for a subway shield hoisting hole according to any one of claims 1 to 7, characterized in that: The second fixing mechanism (8) comprises a pair of second pressing plates (81), which are fixed to the bottom beam (2) by second fasteners (82) and respectively pressed against the two sides of the bottom of the track (1); an upper supporting surface (811) is provided on the top of the second pressing plate (81), and the side of the upper supporting surface (811) close to the track (1) is higher than the other side; a lower pressing block (821) is provided on the second fastener (82), and the upper surface of the lower pressing block (821) is horizontally abutted against the second fastener (82), and the lower surface is obliquely abutted against the upper supporting surface (811).

10. The gantry crane track beam structure for a subway shield hoisting hole according to claim 4, characterized in that: The ground-connected wall (3) and the retaining wall (5) are backfilled with earth on the side away from the shield hoisting hole (6) to form an earth layer (91), the top wall of the earth layer (91) is provided with a plain concrete cushion layer (92), the two ends of the track (1) are respectively supported on the corresponding plain concrete cushion layers (92), and the plain concrete cushion layer (92) on the retaining wall (5) is provided with a track-blocking column (93), and the track-blocking column (93) is against the end surface of the track (1).

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