Deep foundation pit supporting structure

Abstract

The utility model relates to the technical field of foundation pit supporting, in particular to a deep foundation pit supporting structure which comprises a fixing column, a supporting assembly used for supporting a foundation pit is arranged on the fixing column, the supporting assembly comprises a plurality of positioning rods fixedly connected to the side walls of the two sides of the fixing column, and the ends, away from the fixing column, of the positioning rods are slidably connected with supporting blocks; through cooperative arrangement of the positioning rod, the supporting blocks, the auxiliary supporting plates and other structures, during use, the fixing column is placed in a foundation pit, the supporting blocks slide on the positioning rod, the two main supporting plates are attached to the side wall of the foundation pit, the supporting blocks slide on the positioning rod, and the supporting blocks are fixed to the side wall of the foundation pit; and then the auxiliary supporting plate slides out of the main supporting plate, the length of the main supporting plate is adjusted, foundation pits with different widths are supported, and the problem that when the width of the foundation pit is larger than a part of the first supporting frame, and the first supporting frame cannot be additionally arranged, the partial area of the foundation pit cannot be supported, and the foundation pit collapses is solved as much as possible.

Description

Technical Field

[0001] The present application relates to the technical field of foundation pit support, and in particular to a deep foundation pit support structure. Background Art

[0002] The foundation pit is an earth pit excavated at the foundation design location according to the base elevation and foundation plane dimensions. The stability of the foundation pit is different in different geological environments. Some foundation pits are prone to collapse and require supporting structures to support and reinforce the side walls of the foundation pit and the surrounding environment. There are many types of support structures for deep foundation pits.

[0003] The utility model patent with announcement number CN215715377U proposes a deep foundation pit support structure, including symmetrically arranged first support frames, second support frames are arranged between the first support frames, first mounting parts are extended on one side of the bottom end of the first support frame and on both sides of the bottom end of the second support frame, and multiple mounting holes are arranged on the surface of the first mounting parts.

[0004] The above-mentioned deep foundation pit support structure supports the foundation pit by installing a corresponding number of first support frames and second support frames inside the foundation pit, but the first support frame cannot freely adjust the width. When the width of the foundation pit is larger than a part of the first support frame and the first support frame cannot be added, some areas of the foundation pit will be unable to be supported, resulting in the collapse of the foundation pit. Utility Model Content

[0005] The purpose of the utility model is to solve or at least alleviate an existing deep foundation pit support structure, which supports the foundation pit by installing a corresponding number of first support frames and second support frames inside the foundation pit, but the first support frame cannot freely adjust the width. When the width of the foundation pit is larger than a part of the first support frame and the first support frame cannot be added, some areas of the foundation pit will be unable to be supported, resulting in the problem of collapse of the foundation pit.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A deep foundation pit support structure comprises a fixed column, on which a support assembly for supporting the foundation pit is provided, wherein the support assembly comprises a plurality of positioning rods fixedly connected to the side walls on both sides of the fixed column, wherein the ends of the positioning rods away from the fixed column are slidably connected to support blocks, and the ends of the support blocks away from the positioning rods are fixedly connected to a main support plate, wherein auxiliary support plates are provided at both ends of the main support plate, and the auxiliary support plates are located inside the main support plate and form a sliding connection.

[0008] By adopting the above technical solution, when in use, the fixed column is placed in the foundation pit, and the distance between the two main support plates is adjusted by sliding the support block on the positioning rod to fit with the side walls of the foundation pit. At the same time, the auxiliary support plate is slid out from the main support plate, and the length of the main support plate is adjusted to support foundation pits of different widths. This avoids the problem that when the width of the foundation pit is greater than a part of the first support frame and the first support frame cannot be added, part of the foundation pit area cannot be supported, resulting in collapse of the foundation pit.

[0009] Optionally, a mounting plate is fixedly connected to the bottom end of the fixing column, and mounting holes are provided at four ends of the upper surface of the mounting plate.

[0010] By adopting the above technical solution, the mounting plate can be conveniently fixed on the ground through the mounting holes to prevent the fixing column from shaking and tipping over.

[0011] Optionally, a connecting plate is fixedly connected to the top of the fixing column, and connecting columns are fixedly connected to four ends of the upper surface of the connecting plate, and the connecting columns are plugged into the mounting holes.

[0012] By adopting the above technical solution, multiple fixing columns can be connected by inserting the connecting columns into the mounting holes. Multiple fixing columns can be added according to the depth of the foundation pit to support foundation pits of different depths.

[0013] Optionally, both sides of the top of the main support plate are provided with sliding grooves, fixing bolts are slidably arranged in the sliding grooves, and the output ends of the fixing bolts are respectively threadedly connected to the auxiliary support plates.

[0014] By adopting the above technical solution, after the auxiliary support plate is partially slid out of the main support plate, the auxiliary support plate can be fixedly connected to the main support plate by rotating the fixing bolts to abut against the top of the main support plate to prevent sliding.

[0015] Optionally, a first groove is formed on the side walls opposite to each other of the auxiliary support plates, a first support column is provided between each two of the auxiliary support plates, both ends of the first support column are respectively slidably disposed in the first groove, and the first support column is provided with a plurality of different sizes.

[0016] By adopting the above technical solution, a suitable first support column is selected according to the distance between the two auxiliary support plates, and then the two ends of the first support column are slid into the first groove. This can improve the stability of the main support plate and the auxiliary support plate and prevent the support block and the positioning rod from sliding during support. At the same time, the first support column can support the other two sides of the foundation pit.

[0017] Optionally, a second groove is formed on the side wall opposite to the first support column and the fixed column, a second support column is provided between the first support column and the fixed column, both ends of the second support column are respectively slidably disposed in the second groove, and the second support column is provided with a plurality of different sizes.

[0018] By adopting the above technical solution, a suitable second support column is selected according to the distance between the first support column and the fixed column, and then both ends of the second support column are slid into the second groove, so as to improve the stability of the first support column.

[0019] Optionally, through grooves are provided on both sides of the upper surface of the connecting plate, and the through grooves are adapted to the second supporting columns.

[0020] By adopting the above technical solution, the through groove can prevent the connecting plate from blocking the second groove, resulting in the second supporting column being unable to slide into the second groove.

[0021] In summary, the beneficial effects of this application are as follows:

[0022] 1. The present application is provided with coordination between structures such as positioning rods, support blocks and auxiliary support plates. When in use, the fixed column is placed in the foundation pit, and the support block is slid on the positioning rod to adjust the distance between the two main support plates to fit with the side walls of the foundation pit. At the same time, the auxiliary support plate is slid out of the main support plate to adjust the length of the main support plate to support foundation pits of different widths, thereby avoiding as much as possible the problem that when the width of the foundation pit is greater than a part of the first support frame and the first support frame cannot be added, a part of the foundation pit area cannot be supported, resulting in collapse of the foundation pit.

[0023] 2. By inserting the connecting column into the mounting hole, multiple fixing columns can be connected. According to the depth of the foundation pit, multiple fixing columns can be added to support the foundation pits of different depths. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0026] Figure 3 It is an exploded schematic diagram of the connection structure of the fixed column and the connecting plate of the utility model.

[0027] Explanation of the accompanying drawings: 1. fixing column; 2. positioning rod; 3. support block; 4. main support plate; 5. auxiliary support plate; 6. mounting plate; 7. mounting hole; 8. connecting plate; 9. connecting column; 10. slide groove; 11. fixing bolt; 12. first groove; 13. first support column; 14. second groove; 15. second support column; 16. through groove. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-3 This application is described in further detail.

[0029] See also Figure 1-3 A deep foundation pit support structure comprises a fixed column 1, on which a support assembly for supporting the foundation pit is provided, and the support assembly comprises a plurality of positioning rods 2 fixedly connected to the side walls on both sides of the fixed column 1, and the ends of the positioning rods 2 away from the fixed column 1 are slidably connected to support blocks 3, and the ends of the support blocks 3 away from the positioning rods 2 are fixedly connected to main support plates 4 for supporting the side walls of the foundation pit, and both ends of the main support plates 4 are provided with auxiliary support plates 5 for increasing the support width of the main support plates 4, and the auxiliary support plates 5 are located inside the main support plates 4 and form a sliding connection.

[0030] When in use, place the fixed column 1 in the foundation pit, and adjust the distance between the two main support plates 4 by sliding the support block 3 on the positioning rod 2 to fit the side walls of the foundation pit. At the same time, slide the auxiliary support plate 5 out of the main support plate 4, and adjust the length of the main support plate 4 to support foundation pits of different widths. This avoids the problem that when the width of the foundation pit is greater than a part of the first support frame and the first support frame cannot be added, part of the foundation pit area cannot be supported, resulting in collapse of the foundation pit.

[0031] Reference Figure 3 The bottom end of the fixing column 1 is fixedly connected with a mounting plate 6, and mounting holes 7 are provided at four ends of the upper surface of the mounting plate 6. The mounting holes 7 are used to conveniently fix the mounting plate 6 on the ground to prevent the fixing column 1 from shaking and tipping over.

[0032] Reference Figure 3 A connecting plate 8 is fixedly connected to the top of the fixing column 1, and connecting columns 9 are fixedly connected to the four ends of the upper surface of the connecting plate 8. The connecting columns 9 are plugged into the mounting holes 7. By inserting the connecting columns 9 into the mounting holes 7, multiple fixing columns 1 can be connected. Multiple fixing columns 1 can be added according to the depth of the foundation pit to support foundation pits of different depths.

[0033] Reference Figure 1, both sides of the top of the main support plate 4 are provided with sliding grooves 10, and fixing bolts 11 are slidably arranged in the sliding grooves 10. The output ends of the fixing bolts 11 are respectively threadedly connected with the auxiliary support plates 5. After the auxiliary support plate 5 is partially slid out of the main support plate 4, the fixing bolts 11 are rotated to abut the fixing bolts 11 against the top of the main support plate 4, so that the auxiliary support plate 5 can be fixedly connected with the main support plate 4 to prevent sliding.

[0034] Reference Figure 2 A first groove 12 is provided on the side wall opposite to each other of the two auxiliary support plates 5, and a first support column 13 is provided between each two auxiliary support plates 5. Both ends of the first support column 13 are respectively slidably arranged in the first groove 12. The first support column 13 is provided with a plurality of different sizes. The appropriate first support column 13 is selected according to the distance between the two auxiliary support plates 5, and then the two ends of the first support column 13 are slid into the first groove 12, which can improve the stability of the main support plate 4 and the auxiliary support plate 5 and prevent the support block 3 and the positioning rod 2 from sliding during support. At the same time, the first support column 13 can support the other two sides of the foundation pit.

[0035] Reference Figure 2 A second groove 14 is provided on the side wall of the first support column 13 opposite to the fixed column 1, and a second support column 15 is provided between the first support column 13 and the fixed column 1. Both ends of the second support column 15 are slidably arranged in the second groove 14 respectively. The second support column 15 is provided with a plurality of different sizes. A suitable second support column 15 is selected according to the distance between the first support column 13 and the fixed column 1, and then both ends of the second support column 15 are slid into the second groove 14, which can improve the stability of the first support column 13.

[0036] Reference Figure 3 Through grooves 16 are provided on both sides of the upper surface of the connecting plate 8 , and the through grooves 16 are adapted to the second support column 15 . The through grooves 16 can prevent the connecting plate 8 from blocking the second groove 14 , causing the second support column 15 to be unable to slide into the second groove 14 .

[0037] The implementation principle of the present application is as follows: when in use, the fixed column 1 is placed in the foundation pit, and the distance between the two main support plates 4 is adjusted by sliding the support block 3 on the positioning rod 2 to fit the side walls of the foundation pit. At the same time, the auxiliary support plate 5 is slid out from the main support plate 4, and the length of the main support plate 4 is adjusted to support foundation pits of different widths, thereby avoiding the problem that when the width of the foundation pit is greater than a part of the first support frame and the first support frame cannot be added, part of the foundation pit area cannot be supported, resulting in collapse of the foundation pit.

[0038] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A deep foundation pit support structure, comprising a fixed column (1), wherein the fixed column (1) is provided with a support assembly for supporting the foundation pit, characterized in that: The support assembly comprises a plurality of positioning rods (2) fixedly connected to the side walls on both sides of the fixing column (1); the ends of the positioning rods (2) away from the fixing column (1) are slidably connected to support blocks (3); the ends of the support blocks (3) away from the positioning rods (2) are fixedly connected to a main support plate (4); both ends of the main support plate (4) are provided with auxiliary support plates (5); the auxiliary support plates (5) are located inside the main support plate (4) and form a slidable connection.

2. A deep foundation pit support structure according to claim 1, characterized in that: The bottom end of the fixing column (1) is fixedly connected to a mounting plate (6), and four ends of the upper surface of the mounting plate (6) are provided with mounting holes (7).

3. A deep foundation pit support structure according to claim 2, characterized in that: The top end of the fixing column (1) is fixedly connected to a connecting plate (8), and the four ends of the upper surface of the connecting plate (8) are fixedly connected to connecting columns (9), and the connecting columns (9) are plugged into the mounting holes (7).

4. A deep foundation pit support structure according to claim 1, characterized in that: Both sides of the top of the main support plate (4) are provided with sliding grooves (10), and fixing bolts (11) are slidably arranged in the sliding grooves (10), and the output ends of the fixing bolts (11) are respectively threadedly connected to the auxiliary support plates (5).

5. The deep foundation pit support structure according to claim 3, characterized in that: A first groove (12) is provided on the side wall opposite to each other of the auxiliary support plates (5), and a first support column (13) is provided between each of the auxiliary support plates (5). Both ends of the first support column (13) are slidably disposed in the first groove (12), and the first support column (13) is provided with a plurality of different sizes.

6. A deep foundation pit support structure according to claim 5, characterized in that: A second groove (14) is provided on a side wall of the first support column (13) opposite to the fixed column (1), a second support column (15) is provided between the first support column (13) and the fixed column (1), two ends of the second support column (15) are respectively slidably arranged in the second groove (14), and the second support column (15) is provided with a plurality of different sizes.

7. A deep foundation pit support structure according to claim 6, characterized in that: Through grooves (16) are provided on both sides of the upper surface of the connecting plate (8), and the through grooves (16) are adapted to fit the second supporting columns (15).

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