Bridge construction deep foundation pit supporting device

Abstract

The utility model discloses a deep foundation pit support device for bridge construction belongs to bridge construction technical field, including ground, be provided with foundation pit groove on the ground, a plurality of inner walls of foundation pit groove all are provided with support pile mechanism. In the utility model, through a plurality of row pile board assembly support pile mechanism to the inner wall support of foundation pit groove, and set up a plurality of side stop mechanism on the outside of support pile mechanism, through the cooperation of long fastening screw, fixed hole and perforation, the end of long fastening screw is threaded to the depth inside the ground, thereby to support pile mechanism and side stop mechanism are fixed, and utilize the cooperation of second screw hole, L shape support, second mounting hole and second bolt and carry out reinforcing connection between two adjacent side stop mechanism, realized to the lateral part of foundation pit groove and supported the function, and the structure will not affect the space of foundation pit groove middle part, is convenient for subsequent construction in foundation pit groove, and the practicality is good.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and more specifically, to a deep foundation pit support device for bridge construction. Background Technology

[0002] Bridge construction refers to the entire process of building a bridge according to design requirements, covering core aspects such as construction technology, organization and management, and quality control. The construction process includes preliminary preparation and construction organization design, involving resource allocation, schedule planning, and concrete pier construction. During bridge construction, a foundation pit is excavated on the ground to ensure the support quality of the bridge. However, after the foundation pit is excavated, its surrounding area needs to be protected to prevent collapse around the foundation pit.

[0003] A search revealed that utility model patent CN222390457U discloses a deep foundation pit support device for bridge construction, comprising a deep foundation pit sidewall, an inner bottom wall of which is a deep foundation pit bottom wall, and support structures on both the sidewall and bottom wall. The support structure includes support piles, connecting piles, reinforcing columns, limiting plates, movable columns, a bottom plate, a sliding plate, a sliding block, a cylinder, and a rigid spring. The support piles are located at the included angle of the sidewall, and the connecting piles are fixedly connected to the sidewall. A cylinder is fixedly connected to the inner bottom wall of the connecting pile. This deep foundation pit support device for bridge construction enhances the support of the deep foundation pit by setting the support structure on the sidewall and bottom wall. The movable column and connecting pile facilitate the flexible installation of the reinforcing column within the deep foundation pit for support. The support base and inclined support column further enhance the support efficiency of the deep foundation pit in conjunction with the support structure.

[0004] However, the above-mentioned patents still have the following shortcomings: the structure is relatively complex, it is not convenient to carry out construction in the foundation pit after the support device is set in the foundation pit, and it is not convenient to adapt to the support of foundation pits of different sizes. Therefore, we propose a deep foundation pit support device for bridge construction. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a deep foundation pit support device for bridge construction.

[0006] To solve the above problems, the present invention adopts the following technical solution: a deep foundation pit support device for bridge construction, including a ground surface, a foundation pit trench set on the ground surface, multiple inner walls of the foundation pit trench being provided with support pile mechanisms, a side-blocking mechanism being provided on the outer side of each support pile mechanism, a reinforcing mechanism being provided between every two side-blocking mechanisms, multiple long fastening screws being sleeved on the side-blocking mechanism, the ends of the multiple long fastening screws being threaded into the interior of the ground surface, the support pile mechanism including multiple pile plates, each pile plate being provided with multiple through holes, the long fastening screws penetrating the inner cavity of the through holes, and connecting hooks being provided on both sides of each pile plate, with two adjacent connecting hooks being sleeved together.

[0007] As a preferred embodiment of this utility model, the side-blocking mechanism includes a main H-beam disposed on the outer side of the pile plate, multiple side H-beams disposed at both ends of the main H-beam, and outer H-beams disposed at the ends of the two outermost side H-beams. Fixing holes are disposed in the middle of the main H-beam, side H-beams and outer H-beams. Long fastening screws are sleeved in the inner cavity of the fixing holes. A first screw hole is disposed at one end of the main H-beam and the side H-beams. Two insert blocks are fixedly connected to the other end of the outer H-beam and the side H-beams. A first mounting hole is disposed on each insert block. A first bolt is sleeved in the inner cavity of the first mounting hole. The middle end of the first bolt is threaded into the inner cavity of the first screw hole.

[0008] As a preferred embodiment of this utility model, the reinforcement mechanism includes an L-shaped bracket fitted inside two adjacent outer I-beams and a second screw hole opened on the outer I-beam. The L-shaped bracket has a second mounting hole, and a second bolt is fitted into the inner cavity of the second mounting hole. The end of the second bolt is threaded into the inner cavity of the second screw hole.

[0009] As a preferred embodiment of this utility model, the height of the insert block is equal to the height of the inner sides of the main I-beam, the side I-beam, and the outer I-beam.

[0010] In a preferred embodiment of this utility model, the outer diameter of the threaded end of the long fastening screw is equal to the inner diameter of the fixing hole and the through hole, respectively.

[0011] As a preferred embodiment of this utility model, the L-shaped bracket is provided with a clearance groove, the position of which is adapted to the position of the fixing hole on the outer I-beam.

[0012] As a preferred embodiment of this utility model, the end of the external I-beam is provided with an angle.

[0013] Compared with the prior art, the advantages of this utility model are: (1) In this utility model, the support pile mechanism is assembled by multiple pile plates to support the inner wall of the foundation pit, and multiple side blocking mechanisms are set on the outside of the support pile mechanism. The end of the long fastening screw is threaded into the deep inside of the ground by the cooperation of long fastening screw, fixing hole and through hole, thereby fixing the support pile mechanism and the side blocking mechanism. In addition, the second screw hole, L-shaped bracket, second mounting hole and second bolt are used to reinforce the connection between two adjacent side blocking mechanisms, realizing the function of supporting the side of the foundation pit. In addition, this structure will not affect the space in the middle of the foundation pit, which is convenient for subsequent construction in the foundation pit.

[0014] (2) In this utility model, the support pile mechanism is assembled from multiple pile plates, so that the length of the support pile mechanism can be adjusted to adapt to the use of foundation pits with different inner diameters. Similarly, the side retaining mechanism is assembled from the main I-beam, multiple side I-beams and two outer I-beams. By changing the number of side I-beams, the length of the side retaining mechanism can be adjusted to ensure that the side retaining mechanism can support and fix the support pile mechanism on the inner wall of the foundation pit, thereby realizing the function of supporting foundation pits with different inner diameters. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 is an exploded view of the overall structure of this utility model.

[0017] Figure 3 is an exploded view of the support pile mechanism of this utility model.

[0018] Figure 4 is an exploded view of the side guard mechanism of this utility model.

[0019] Figure 5 is an exploded view of the reinforcement mechanism of this utility model.

[0020] The following are the labels in the diagram: 1. Ground; 2. Foundation pit; 3. Support pile mechanism; 4. Reinforcement mechanism; 5. Side retaining mechanism; 6. Pile plate; 7. Long fastening screw; 8. Fixing hole; 9. Main H-beam; 10. Side H-beam; 11. Outer H-beam; 12. First screw hole; 13. Insert block; 14. First mounting hole; 15. First bolt; 16. Angled; 17. Second screw hole; 18. L-shaped bracket; 19. Second mounting hole; 20. Second bolt; 21. Clearance groove; 22. Through hole; 23. Connecting hook. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example 1

[0024] As shown in Figures 1 to 5, a deep foundation pit support device for bridge construction includes a ground surface 1, a foundation pit trench 2 on the ground surface 1, multiple inner walls of the foundation pit trench 2 are provided with support pile mechanisms 3, each support pile mechanism 3 is provided with a side retaining mechanism 5 on its outer side, and a reinforcement mechanism 4 is provided between every two side retaining mechanisms 5. Multiple long fastening screws 7 are fitted on the side retaining mechanisms 5, and the ends of the multiple long fastening screws 7 are threaded into the interior of the ground surface 1. The support pile mechanism 3 includes multiple pile plates 6, each pile plate 6 is provided with multiple through holes 22, and the long fastening screws 7 penetrate the inner cavity of the through holes 22. Connecting hooks 23 are provided on both sides of the pile plate 6, and two adjacent connecting hooks 23 are nested together. The two pile plates 6 are nested together by the connecting hooks 23 on the two adjacent pile plates 6, thus assembling the support pile mechanism 3 at the side wall of the foundation pit trench 2. Example 2

[0025] Based on Embodiment 1, as shown in Figures 1 to 5, the side-blocking mechanism 5 includes a main H-beam 9 disposed on the outer side of the pile plate 6. Multiple side H-beams 10 are disposed at both ends of the main H-beam 9. Outer H-beams 11 are disposed at the ends of the two outermost side H-beams 10. Fixing holes 8 are provided in the middle of the main H-beam 9, side H-beams 10, and outer H-beams 11. Long fastening screws 7 are fitted into the inner cavity of the fixing holes 8. The outer diameter of the threaded end of the long fastening screws 7 is equal to the inner diameter of the fixing holes 8 and the through holes 22, respectively, ensuring the stability of the long fastening screws 7 fitted into the inner cavities of the fixing holes 8 and the through holes 22. A first screw hole 12 is provided at one end of both the main H-beam 9 and the side H-beams 10. Two insert blocks 13 are fixedly connected to the other ends of both the outer H-beams 11 and the side H-beams 10. Each of the two outer I-beams 11 is provided with a first mounting hole 14. A first bolt 15 is fitted into the inner cavity of the first mounting hole 14. The middle end of the first bolt 15 is threaded into the inner cavity of the first bolt hole 12. The reinforcing mechanism 4 includes an L-shaped bracket 18 fitted inside the two adjacent outer I-beams 11 and a second bolt hole 17 opened on the outer I-beams 11. A second mounting hole 19 is opened on the L-shaped bracket 18. A second bolt 20 is fitted into the inner cavity of the second mounting hole 19. The end of the second bolt 20 is threaded into the inner cavity of the second bolt hole 17. An avoidance groove 21 is provided on the L-shaped bracket 18. The position of the avoidance groove 21 is adapted to the position of the fixing hole 8 on the outer I-beam 11. The avoidance groove 21 avoids the long fastening screw 7 fitted in the fixing hole 8. Example 3

[0026] Based on Embodiment 1 and Embodiment 2, as shown in Figure 4, the height of the insert block 13 is equal to the height of the inner sides of the main H-beam 9, the side H-beam 10, and the outer H-beam 11, ensuring the stability of the end of the insert block 13 when it is inserted into the inner side of the side H-beam 10 or the main H-beam 9, thereby ensuring the assembly stability between the main H-beam 9, the multiple side H-beams 10, and the two outer H-beams 11. The end of the outer H-beam 11 is provided with an angle 16, and the angle 16 at the ends of the two outer H-beams 11 is used to ensure the neatness of the assembly between the outer H-beams 11 at the ends of the two side stop mechanisms 5.

[0027] It should be noted that this utility model is a deep foundation pit support device for bridge construction. In use, firstly, multiple pile plates 6 are inserted into the inner wall of the foundation pit 2, and the connecting hooks 23 between two adjacent pile plates 6 are staggered to form a support pile mechanism 3. Then, multiple side I-beams 10 are sequentially installed at both ends of the main I-beam 9, and outer I-beams 11 are installed at the ends of the two outermost side I-beams 10. The insert blocks 13 at the ends of the side I-beams 10 and outer I-beams 11 are inserted into the inner side of the main I-beam 9 or the side I-beams 10. The main I-beam 9, the multiple side I-beams 10, and the two outer I-beams 11 are connected through the cooperation of the first screw hole 12, the first mounting hole 14, and the first bolt 15. Simultaneously, the length of the assembled side retaining mechanism 5 is adjusted by changing the number of side I-beams 10. Finally, the side retaining mechanism 5 is placed on the support pile mechanism 3. On the outside, long fastening screws 7 are fitted into the fixing holes 8 on the main H-beam 9, side H-beam 10 and outer H-beam 11, so that the end of the long fastening screw 7 passes through the through hole 22 and is threaded into the depth of the ground 1, thereby fixing the support pile mechanism 3 and the side retaining mechanism 5. Finally, L-shaped brackets 18 are placed in the outer H-beam 11 at the adjacent positions of the two side retaining mechanisms 5. The L-shaped brackets 18 are installed on the inner side of the two adjacent outer H-beams 11 through the cooperation of the second screw hole 17, the second mounting hole 19 and the second bolt 20, thereby fixing the two side retaining mechanisms 5 and ensuring the strength of the support device.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A deep foundation pit support device for bridge construction, comprising a ground surface (1), characterized in that: A foundation pit (2) is provided on the ground (1). Multiple inner walls of the foundation pit (2) are provided with support pile mechanisms (3). A side guard mechanism (5) is provided on the outside of each support pile mechanism (3). A reinforcement mechanism (4) is provided between every two side guard mechanisms (5). Multiple long fastening screws (7) are sleeved on the side guard mechanism (5). The ends of the multiple long fastening screws (7) are threaded into the interior of the ground (1). The support pile mechanism (3) includes multiple pile plates (6). Multiple through holes (22) are provided on each pile plate (6). The long fastening screws (7) penetrate the inner cavity of the through holes (22). Connecting hooks (23) are provided on both sides of the pile plate (6). Two adjacent connecting hooks (23) are sleeved together. The side blocking mechanism (5) includes a main I-beam (9) set on the outside of the pile plate (6). Both ends of the main I-beam (9) are provided with multiple side I-beams (10). The ends of the two outermost side I-beams (10) are provided with outer I-beams (11). The middle of the main I-beam (9), the side I-beams (10) and the outer I-beams (11) are provided with fixing holes (8). The long fastening screw (7) is sleeved in the inner cavity of the fixing hole (8). One end of the main I-beam (9) and the side I-beams (10) are provided with a first screw hole (12). The other end of the outer I-beams (11) and the side I-beams (10) are fixedly connected with two insert blocks (13). The insert blocks (13) are provided with a first mounting hole (14). The inner cavity of the first mounting hole (14) is sleeved with a first bolt (15). The middle end of the first bolt (15) is threaded into the inner cavity of the first screw hole (12). The reinforcement mechanism (4) includes an L-shaped bracket (18) fitted inside two adjacent outer I-beams (11) and a second screw hole (17) opened on the outer I-beams (11). The L-shaped bracket (18) is provided with a second mounting hole (19). A second bolt (20) is fitted into the inner cavity of the second mounting hole (19). The end of the second bolt (20) is threaded into the inner cavity of the second screw hole (17).

2. The deep foundation pit support device for bridge construction according to claim 1, characterized in that: The height of the insert block (13) is equal to the height of the inner sides of the main I-beam (9), the side I-beam (10), and the outer I-beam (11).

3. The deep foundation pit support device for bridge construction according to claim 1, characterized in that: The outer diameter of the threaded end of the long fastening screw (7) is equal to the inner diameter of the fixing hole (8) and the through hole (22).

4. A deep foundation pit support device for bridge construction according to claim 1, characterized in that: The L-shaped bracket (18) is provided with a clearance groove (21), and the position of the clearance groove (21) is adapted to the position of the fixing hole (8) on the outer I-beam (11).

5. A deep foundation pit support device for bridge construction according to claim 1, characterized in that: The end of the external I-beam (11) is provided with an angled bevel (16).

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