Supporting and reinforcing structure for deep foundation pit

Abstract

The utility model relates to a foundation pit support technical field, especially in pit support reinforcing structure of deep, including a plurality of support unit and the connecting structure of connecting adjacent support unit, the support unit includes bottom support structure and adjustable support structure, adjustable support structure can be inserted into bottom support structure and moves up and down, adjustable support structure connects in the different preset position of bottom support structure can form different height, the connecting structure includes the connecting plate or right angle connecting piece, the connecting plate is used for connecting the adjacent two support units of even arrangement, and the right angle connecting piece is used for connecting two adjacent support units each other vertically. In the hoisting process, adjustable support structure retracts into bottom support structure, and transportation is convenient, and when installing, the fixed connection of corresponding position is carried out according to the specified position using anchor rod, connecting plate and right angle connecting piece. Each support unit can be hoisted and installed in the corresponding support position, and there is no easy deformation condition caused by the fixing of integral support frame respectively.

Description

Technical Field

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

[0002] Deep foundation pit support refers to the measures taken to support, reinforce, and protect the sidewalls and surrounding environment of a deep foundation pit in order to ensure the safety of underground structure construction and the surrounding environment.

[0003] Patent CN219315744U discloses a support and reinforcement device for deep foundation pit construction. It includes an adjustment mechanism where a lower support frame is lowered into the deep foundation pit by tying ropes to it. The upper support frame moves multiple adjusting rods downwards, which in turn move an adjusting support cylinder, causing the lower support frame to move downwards. The entire upper support frame is adjusted downwards by adjusting the distance. Once a specified depth is reached, a striking block is struck, moving a linkage rod to adjust the support depth. This device is suitable for deep foundation pits of various depths. However, in practice, this deep foundation pit support and reinforcement device requires the entire frame to be lifted and struck downwards. Under the striking action, the four sides of the frame are prone to deformation, thus affecting the effectiveness of the foundation pit support. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a support and reinforcement structure for deep foundation pits.

[0005] A support and reinforcement structure for deep foundation pits includes several support units and a connecting structure connecting adjacent support units.

[0006] The support unit includes a bottom support structure and an adjustable support structure. The bottom support structure is fixed to the bottom surface of the deep foundation pit. The adjustable support structure can be inserted into the bottom support structure and can move up and down. The adjustable support structure can be connected to different preset positions of the bottom support structure to form different heights. The bottom support structure is fixed to the bottom surface and sidewalls of the deep foundation pit by anchor bolts, and the adjustable support structure is fixed to the sidewalls of the deep foundation pit by anchor bolts.

[0007] The connection structure includes a connecting plate or a right-angle connector. The connecting plate is used to connect two adjacent support units that are arranged at the same level, and the right-angle connector is used to connect two adjacent support units that are perpendicular to each other.

[0008] Furthermore, the bottom support structure includes a first top frame, a first bottom frame, a first left frame, and a first right frame, with a plurality of first support rods arranged at equal intervals between the first top frame and the first bottom frame;

[0009] The first left frame and the first right frame are symmetrical to each other. The first left frame has a left sliding groove and the first right frame has a right sliding groove. The two sides of the adjustable support structure are respectively inserted into the left sliding groove and the right sliding groove, and can move up and down along the left sliding groove and the right sliding groove.

[0010] Furthermore, the first left frame has a plurality of equally spaced first through holes, the first right frame has a plurality of equally spaced second through holes, and the first bottom frame has a plurality of third through holes.

[0011] Furthermore, the adjustable support structure includes a second top frame, a second bottom frame, a second left frame, and a second right frame, with a plurality of equally spaced second support rods arranged between the second top frame and the second bottom frame;

[0012] The second left frame has several fourth through holes arranged at equal intervals, and the second right frame has several fifth through holes arranged at equal intervals.

[0013] Furthermore, the cross-section of the second bottom frame is adapted to the space between the left slide groove, the right slide groove, and the space between the left slide groove and the right slide groove.

[0014] Furthermore, a lifting ring is fixed to the upper end face of the second top frame.

[0015] Furthermore, the connecting plate is a flat plate structure, and the connecting plate has several sixth through holes for connecting two adjacent bottom support structures or connecting two adjacent adjustable support structures.

[0016] Furthermore, the connecting plate is located in the right sliding groove of the bottom support structure and the left sliding groove of the adjacent bottom support structure, wherein the two sixth through holes coincide with the second through hole of the first right side frame and the first through hole of the first left side frame, respectively, and are then fastened with bolts.

[0017] Furthermore, the connecting plate is also used to connect the first bottom frame of two adjacent support units that are perpendicular to each other.

[0018] Furthermore, the right-angle connector is a right-angle plate structure with several seventh through holes for connecting two adjacent bottom support structures that are perpendicular to each other or connecting two adjacent adjustable support structures that are perpendicular to each other.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] The support and reinforcement structure for this deep foundation pit features modular assembly of each support unit, offering strong applicability. During hoisting, the adjustable support structure can retract into the bottom support structure for easy transport. During installation, anchor bolts, connecting plates, and right-angle connectors are used for fixed connections after the units are positioned at their designated locations. Each support unit can be hoisted and installed at its corresponding support position, eliminating the risk of deformation that can occur when the entire support frame is fixed separately. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of the support and reinforcement structure for the deep foundation pit in the embodiment.

[0023] Figure 2 This is a schematic diagram of the support unit in the embodiment.

[0024] Figure 3 This is an exploded view of the support unit in the embodiment.

[0025] Figure 4 This is a schematic diagram of the connecting plate in the embodiment.

[0026] Figure 5 This is a schematic diagram of the right-angle connector in the embodiment.

[0027] In the diagram: 1. Bottom support structure; 11. First top frame; 12. First bottom frame; 121. Third through hole; 13. First left frame; 131. Left sliding groove; 132. First through hole; 14. First right frame; 141. Right sliding groove; 142. Second through hole; 15. First support rod;

[0028] 2. Adjustable support structure; 21. Second top frame; 22. Second bottom frame; 23. Second left frame; 231. Fourth through hole; 24. Second right frame; 241. Fifth through hole; 25. Second support rod;

[0029] 3. Anchor bolts;

[0030] 4. Connecting plate; 41. Sixth through hole; 42. Connecting ring;

[0031] 5. Right-angle connector; 51. Seventh through hole;

[0032] 6. Hanging rings. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] like Figures 1-5 As shown, this embodiment provides a support and reinforcement structure for a deep foundation pit, including several support units and a connecting structure connecting adjacent support units. Each support unit includes a bottom support structure 1 and an adjustable support structure 2. The bottom support structure 1 is fixed to the bottom surface of the deep foundation pit, and the adjustable support structure 2 can be inserted into the bottom support structure 1 and move up and down. Different preset positions of the adjustable support structure 2 connected to the bottom support structure 1 can form different overall support structure heights. The bottom support structure 1 is fixed to the bottom surface and sidewalls of the deep foundation pit by anchor bolts 3, and the adjustable support structure 2 is fixed to the sidewalls of the deep foundation pit by anchor bolts 3. The connecting structure includes a connecting plate 4 or a right-angle connector 5. The connecting plate 4 is used to connect two adjacent support units that are arranged flush with each other, and the right-angle connector 5 is used to connect two adjacent support units that are perpendicular to each other. By setting up multiple support units, each support unit can be hoisted and fixed separately during the support operation of deep foundation pits. This avoids the easy deformation caused by fixing the entire support frame separately. Furthermore, it allows for the selection of an appropriate number of support units based on the size of the deep foundation pit before assembling them for support operations.

[0035] In this embodiment, as Figures 1-3 As shown, the bottom support structure 1 includes a first top frame 11, a first bottom frame 12, a first left frame 13, and a first right frame 14. A plurality of equally spaced first support rods 15 are arranged between the first top frame 11 and the first bottom frame 12. The first left frame 13 and the first right frame 14 are symmetrical. The first left frame 13 has a left sliding groove 131, and the first right frame 14 has a right sliding groove 141. The openings of the left and right sliding grooves 131 and 141 are opposite to each other. The two sides of the adjustable support structure 2 are respectively inserted into the left and right sliding grooves 131 and 141, and can move up and down along the left and right sliding grooves 131 and 141. A plurality of equally spaced first through holes 132 are also provided on the first left frame 13, each first through hole 132 being a horizontal hole. The first right frame 14 has a plurality of equally spaced second through holes 142, each second through hole 142 being a horizontal hole. The first bottom frame 12 has several vertically penetrating third through holes 121. The top and right side of the left slide groove 131 are open, and the middle part of its left side is open; the top and left side of the right slide groove 141 are open, and the middle part of its right side is open, which facilitates the insertion of the connecting plate 4 for fixed connection.

[0036] In this embodiment, as Figures 1-3 As shown, the adjustable support structure 2 includes a second top frame 21, a second bottom frame 22, a second left frame 23, and a second right frame 24. A plurality of equally spaced second support rods 25 are arranged between the second top frame 21 and the second bottom frame 22. The second left frame 23 has a plurality of equally spaced fourth through holes 231, and the second right frame 24 has a plurality of equally spaced fifth through holes 241. Each fourth through hole 231 is adapted to each first through hole 132, and each fifth through hole 241 is adapted to each second through hole 142. When the adjustable support structure 2 is inserted into the bottom support structure 1, the second left frame 23 of the adjustable support structure 2 is located in the left slide groove 131 of the bottom support structure 1, and the second right frame 24 of the adjustable support structure 2 is located in the right slide groove 141 of the bottom support structure 1. After the fourth through holes 231 and the first through holes 132 of different heights overlap, and the fifth through holes 241 and the second through holes 142 of different heights overlap and are fixed with bolts respectively, support structures of different heights can be formed.

[0037] Furthermore, the cross-section of the second bottom frame 22 is adapted to the space between the left slide rail 131, the right slide rail 141, and the space between the left slide rail 131 and the right slide rail 141. A lifting ring 6 is fixedly connected to the upper end face of the second top frame 21.

[0038] In this embodiment, as Figure 1 and Figure 4 As shown, the connecting plate 4 is a flat plate structure with several sixth through holes 41 for connecting two adjacent bottom support structures 1 or two adjacent adjustable support structures 2. Specifically, the connecting plate 4 is placed in the right sliding groove 141 of a bottom support structure 1 and the left sliding groove 131 of an adjacent bottom support structure 1, wherein the two sixth through holes 41 coincide with the second through hole 142 of the first right side frame 14 and the first through hole 132 of the first left side frame 13, respectively, and then bolts are used to fasten them to achieve a fixed connection between the two adjacent bottom support structures.

[0039] In this embodiment, the connecting plate 4 is also used to connect the first bottom frame 11 of two bottom support structures 1 in two adjacent support units that are perpendicular to each other. The connecting plate 4 is placed at the right-angle connection point, and its two sixth through holes 41 are respectively aligned with the corresponding third through holes 121 in the first bottom frame 12 of the bottom support structure 1, and then secured with bolts, or directly fixed to the bottom surface of the deep foundation pit by anchor rods. To facilitate the handling, removal, and placement of the connecting plate 4, link rings 42 are also provided at both ends.

[0040] In this embodiment, as Figure 1 and Figure 5As shown, the right-angle connector 5 is a right-angle plate structure with several seventh through holes 51, used to connect two adjacent bottom support structures 1 or two adjacent adjustable support structures 2 that are perpendicular to each other. The seventh through holes on the two sides of the right-angle connector 5 are fixed to the corresponding through holes at the connection points of the bottom support structure 1 or the right-angle connection points of the adjustable support structure 2 using bolts or anchor rods, which can strengthen the stability of the structure at right-angle turns.

[0041] The deep foundation pit support and reinforcement structure provided in this embodiment allows for the selection of an appropriate number of support units based on the length and width of the deep foundation pit during application. When hoisting each support unit, the adjustable support structure 2 is embedded within the bottom support structure 1, and bolts are used to limit their position for easy hoisting. The support unit is hoisted and placed into the bottom of the deep foundation pit and positioned against the side wall. Anchor bolts are used to penetrate the third through hole 121 of the bottom support structure 1 to position the bottom support structure. Then, the adjustable support structure 2 is hoisted to the designated height. At this time, the first through hole 132 of the bottom support structure 1 and the fourth through hole 231 of the adjustable support structure 2, and the second through hole 142 of the bottom support structure 1 and the fifth through hole 241 of the adjustable support structure 2 are fixedly connected with bolts. Alternatively, anchor bolts can be directly used to penetrate and fix the support unit to the side wall of the deep foundation pit. Anchor bolts can also be used to penetrate the first through hole 132, the second through hole 142, the fourth through hole 231, and the fifth through hole 241 at other non-overlapping locations to fix the support unit to the side wall of the deep foundation pit, thereby strengthening the stable connection between the overall support unit and the side wall of the deep foundation pit.

[0042] After each support unit is fixed to the bottom and sidewalls of the deep foundation pit, the connecting plate 4 is placed in the right sliding groove 141 of a bottom support structure 1 and the left sliding groove 131 of the adjacent bottom support structure 1. The two sixth through holes 41 coincide with the second through hole 142 of the first right side frame 14 and the first through hole 132 of the first left side frame 13, respectively. Bolts are then used to tighten the connection, achieving a fixed connection between the two adjacent bottom support structures. Two adjacent bottom support structures 1 that are perpendicular to each other, or two adjacent adjustable support structures 2 that are perpendicular to each other, are connected using right-angle connectors 5. Connecting plates are also used to reinforce the connection between two adjacent bottom support structures 1 that are perpendicular to each other, enhancing the stability of the right-angle connection.

[0043] The deep foundation pit support and reinforcement structure provided in this embodiment allows for modular assembly of each support unit, making it highly adaptable. During hoisting, the adjustable support structure 2 can retract into the bottom support structure 1 for easy transportation. During installation, after being positioned according to the designated location, anchor bolts 3, connecting plates 4, and right-angle connectors 5 are used for fixed connection at the corresponding positions. Each support unit can be hoisted and installed at its corresponding support position, eliminating the easy deformation issues that can occur when the entire support frame is fixed separately.

[0044] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A support and reinforcement structure for deep foundation pits, characterized in that, It includes several support units and a connection structure that connects adjacent support units; The support unit includes a bottom support structure (1) and an adjustable support structure (2). The bottom support structure (1) is used to fix the bottom surface of the deep foundation pit. The adjustable support structure (2) can be inserted into the bottom support structure (1) and can move up and down. The adjustable support structure (2) can be connected to different preset positions of the bottom support structure (1) to form different heights. The bottom support structure (1) is fixed to the bottom and side walls of the deep foundation pit by anchor bolts (3), and the adjustable support structure (2) is fixed to the side walls of the deep foundation pit by anchor bolts (3). The connection structure includes a connecting plate (4) or a right-angle connector (5). The connecting plate (4) is used to connect two adjacent support units that are arranged at the same level, and the right-angle connector (5) is used to connect two adjacent support units that are perpendicular to each other.

2. The support and reinforcement structure for deep foundation pits according to claim 1, characterized in that, The bottom support structure (1) includes a first top frame (11), a first bottom frame (12), a first left frame (13) and a first right frame (14), and a plurality of first support rods (15) are arranged between the first top frame (11) and the first bottom frame (12); The first left frame (13) and the first right frame (14) are symmetrical to each other. The first left frame (13) has a left sliding groove (131) and the first right frame (14) has a right sliding groove (141). The two sides of the adjustable support structure (2) are respectively inserted into the left sliding groove (131) and the right sliding groove (141) and can move up and down along the left sliding groove (131) and the right sliding groove (141).

3. The support and reinforcement structure for deep foundation pits according to claim 2, characterized in that, The first left frame (13) has several first through holes (132) arranged at equal intervals, the first right frame (14) has several second through holes (142) arranged at equal intervals, and the first bottom frame (12) has several third through holes (121).

4. The support and reinforcement structure for deep foundation pits according to claim 3, characterized in that, The adjustable support structure (2) includes a second top frame (21), a second bottom frame (22), a second left frame (23), and a second right frame (24), with a plurality of second support rods (25) arranged between the second top frame (21) and the second bottom frame (22); The second left frame (23) has several fourth through holes (231) arranged at equal intervals, and the second right frame (24) has several fifth through holes (241) arranged at equal intervals.

5. The support and reinforcement structure for deep foundation pits according to claim 4, characterized in that, The cross-section of the second bottom frame (22) is adapted to the space between the left slide (131), the right slide (141) and the left slide (131) and the right slide (141).

6. The support and reinforcement structure for deep foundation pits according to claim 5, characterized in that, A lifting ring (6) is fixed to the upper end face of the second top frame (21).

7. The support and reinforcement structure for deep foundation pits according to claim 6, characterized in that, The connecting plate (4) is a flat plate structure, and the connecting plate (4) has several sixth through holes (41) for connecting two adjacent bottom support structures (1) or connecting two adjacent adjustable support structures (2).

8. The support and reinforcement structure for deep foundation pits according to claim 7, characterized in that, The connecting plate (4) is located in the right slide groove (141) of the bottom support structure (1) and the left slide groove (131) of the adjacent bottom support structure (1), wherein the two sixth through holes (41) coincide with the second through hole (142) of the first right side frame (14) and the first through hole (132) of the first left side frame (13), respectively.

9. The support and reinforcement structure for deep foundation pits according to claim 8, characterized in that, The connecting plate (4) is also used to connect the first bottom frame (12) of two adjacent support units that are perpendicular to each other.

10. The support and reinforcement structure for deep foundation pits according to claim 9, characterized in that, The right-angle connector (5) is a right-angle plate structure with several seventh through holes (51) for connecting two adjacent bottom support structures (1) that are perpendicular to each other or connecting two adjacent adjustable support structures (2) that are perpendicular to each other.

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