Deep foundation pit support structure

Abstract

The utility model provides a deep foundation pit support structure. The deep foundation pit support structure comprises supporting columns. The positioning structure is installed on the side wall of the supporting column, the positioning structure comprises a hoop, a cushion block and a connecting piece, the hoop is tightly hooped on the side wall of the supporting column, the cushion block is connected to the side wall of the hoop in a sliding mode, and the connecting piece is connected to the side wall of the hoop in a sliding mode; the fence structure is fixedly connected with the connecting piece through bolts, the fence structure comprises a baffle, a back ridge, a through groove and through holes, the through holes are formed in the side walls of the two ends of the baffle, and the back ridge is transversely fixed to the middle of the back face of the baffle; the supporting structure is connected with the supporting column through a connecting piece, and the fixed bottom plate is rotationally connected to the other end of the supporting screw rod; the deep foundation pit support structure has the advantages of being convenient to change corresponding to different foundation pit angles and convenient to install and support.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit support technology, and in particular to a deep foundation pit support structure. Background Technology

[0002] A foundation pit is an earthen pit excavated at the foundation design location according to the base elevation and foundation plane dimensions. A deep foundation pit refers to an excavation depth exceeding 5 meters, or a project with particularly complex geological conditions, surrounding environment, and underground pipelines even if the depth does not exceed 5 meters. This project mainly includes the design and construction of the foundation pit support system and earthwork excavation, and is a highly comprehensive system engineering project.

[0003] Currently, some existing deep foundation pit retaining structures have limited protective functions during use. This is because there are many corners on the inner wall of the deep foundation pit during excavation, and the corner angles of the inner wall are inconsistent. During the installation of the outer protective structure, the retaining structure can only change the angle at a fixed point, which makes it impossible to protect the perimeter of the foundation pit from multiple angles.

[0004] Therefore, it is necessary to provide a new deep foundation pit retaining structure to solve the above-mentioned technical problems. Utility Model Content

[0005] The technical problem solved by this utility model is to provide a deep foundation pit retaining structure that is easy to adapt to changes in different foundation pit angles and facilitates the installation of retaining structures.

[0006] To solve the above-mentioned technical problems, the deep foundation pit retaining structure provided by this utility model includes: a support column; a positioning structure, which is installed on the side wall of the support column, the positioning structure including a clamp, a pad, and a connector, the clamp being tightened to the side wall of the support column, the pad being slidably connected to the side wall of the clamp, and the connector being slidably connected to the side wall of the clamp; a enclosure structure, which is fixedly connected to the connector by bolts, the enclosure structure including a baffle and a back rib, a through groove and a through hole, the side walls at both ends of the baffle having through holes, and the back rib being laterally fixed to the center of the back of the baffle; and a support structure, which is connected to the support column by the connector, the support structure including a fixed base plate and a support screw, one end of the support screw being fixedly connected to the connector by bolts, and the fixed base plate being rotatably connected to the other end of the support screw.

[0007] Preferably, the support column is cylindrical in shape, and the bottom end of the support column is conical, and the height of the support column is greater than the height of the baffle.

[0008] Preferably, one end of the connector has an arc-shaped sidewall, and the arc-shaped sidewall of one end of the connector abuts against the sidewall of the support column, and the other end of the connector engages with the edge of the baffle through an opening.

[0009] Preferably, the side wall of the back rib is fitted with a snap-fit ​​member, both ends of the snap-fit ​​member are provided with slots, and the snap-fit ​​member is connected to the back rib by bolts.

[0010] Preferably, the support structure further includes a connecting block, a screw cylinder, and a support rod. The screw cylinder is threadedly connected to the side wall of the support screw, the connecting block slides on the side wall of the support screw, and one end of the support rod is rotatably connected to the side wall of the connecting block.

[0011] Preferably, the other end of the support rod is rotatably connected to the snap-fit ​​member, and the support rod is supported between the support screw and the baffle through the connection with the snap-fit ​​member and the connecting block.

[0012] Preferably, the screw barrel is rotatably connected to the connecting block, and the supporting screw is supported between the support column and the fixed base plate.

[0013] Compared with related technologies, the deep foundation pit retaining structure provided by this utility model has the following beneficial effects:

[0014] This utility model provides a deep foundation pit retaining structure. First, based on the location of the deep foundation pit, the support columns are driven into the outer edge of the pit, ensuring a certain safety distance between the support columns and the pit. The positioning structure is then equidistantly installed on the sidewall of the support column, initially with a loose installation. This allows the pads and connectors within the positioning structure to fit against the sidewall of the support column and slide along the sidewall of the clamp. Next, one end of the retaining structure is engaged with one end of the positioning structure, and the position of the positioning structure is adjusted so that the retaining structure and the positioning structure are fixed together with bolts. Then, by adjusting the position of the enclosure structure so that its orientation corresponds to the angle of the inner wall of the deep foundation pit, it is sequentially connected and erected along the outer edge of the deep foundation pit. After erection, the positioning structure is tightened, so that the positioning structure fixes the enclosure structure and the column together, enclosing the deep foundation pit inside. At the same time, the support structure is connected to the column, so that the support structure supports and reinforces the column. Meanwhile, the enclosure structure is connected to the support structure through the snap-fit, so that the support structure can also support the enclosure structure, thereby strengthening the protective strength of the enclosure structure. Attached Figure Description

[0015] Figure 1A schematic diagram of a preferred embodiment of the deep foundation pit retaining structure provided by this utility model;

[0016] Figure 2 for Figure 1 The diagram shows a fixed positioning structure.

[0017] Figure 3 for Figure 1 The diagram shows the overall structure of the enclosure.

[0018] Figure 4 for Figure 1 The diagram shows the structure of the snap-fit ​​connector;

[0019] Figure 5 for Figure 1 The diagram shows the supporting structure.

[0020] The following are the labels in the diagram: 1. Support column, 2. Positioning structure, 21. Clamp, 22. Pad, 23. Connector, 3. Enclosure structure, 31. Baffle, 32. Back rib, 33. Through groove, 34. Through hole, 4. Support structure, 41. Fixed base plate, 42. Support screw, 43. Connecting block, 44. Screw barrel, 45. Support rod, 5. Clip. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figures 1-5 ,in Figure 1 A schematic diagram of a preferred embodiment of the deep foundation pit retaining structure provided by this utility model; Figure 2 for Figure 1 The diagram shows a fixed positioning structure. Figure 3 for Figure 1 The diagram shows the overall structure of the enclosure. Figure 4 for Figure 1 The diagram shows the structure of the snap-fit ​​connector; Figure 5 for Figure 1The diagram shows a structural schematic of the supporting structure; the deep foundation pit retaining structure includes: a support column 1; a positioning structure 2, which is installed on the side wall of the support column 1, the positioning structure 2 including a clamp 21, a pad 22, and a connector 23, the clamp 21 being tightened to the side wall of the support column 1, the pad 22 being slidably connected to the side wall of the clamp 21, and the connector 23 being slidably connected to the side wall of the clamp 21; and a retaining structure 3, which is fixedly connected to the connector 23 by bolts. The baffle structure 3 includes a baffle 31, a back rib 32, a through groove 33, and a through hole 34. The side walls at both ends of the baffle 31 are provided with through holes 34. The back rib 32 is horizontally fixed to the center of the back of the baffle 31. The support structure 4 is connected to the support column 1 through a connector 23. The support structure 4 includes a fixed base plate 41 and a support screw 42. One end of the support screw 42 is fixedly connected to the connector 23 by a bolt. The fixed base plate 41 is rotatably connected to the other end of the support screw 42.

[0023] In the specific implementation process, such as Figure 1 and Figure 2 As shown, the support column 1 is cylindrical in shape, with a conical bottom end, and its height is greater than that of the baffle 31. One end of the connector 23 has an arc-shaped sidewall, which abuts against the sidewall of the support column 1, while the other end of the connector 23 engages with the edge of the baffle 31 through an opening. This facilitates the connection between the support column 1 and the baffle 31 via the connector 23, thereby allowing the baffle 31 to be positioned by the support column 1 and thus forming a protective enclosure for the deep foundation pit.

[0024] In the specific implementation process, such as Figure 1 and Figure 4 As shown, a snap-fit ​​member 5 is engaged on the side wall of the back rib 32. Both ends of the snap-fit ​​member 5 are provided with slots, and the snap-fit ​​member 5 is connected to the back rib 32 by bolts. This facilitates the connection between the snap-fit ​​member 5 and the back rib 32, allowing the snap-fit ​​member 5 to serve as a medium for connecting the baffle 31 and the support rod 45.

[0025] In the specific implementation process, such as Figure 1 and Figure 2As shown, the support structure 4 further includes a connecting block 43, a screw barrel 44, and a support rod 45. The screw barrel 44 is threadedly connected to the side wall of the support screw 42. The connecting block 43 slides on the side wall of the support screw 42. One end of the support rod 45 is rotatably connected to the side wall of the connecting block 43. The other end of the support rod 45 is rotatably connected to the snap-fit ​​member 5, and the support rod 45 is supported between the support screw 42 and the baffle 31 through its connection with the snap-fit ​​member 5 and the connecting block 43. The screw barrel 44 is rotatably connected to the connecting block 43, and the support screw 42 is supported between the support column 1 and the fixed base plate 41. This allows the position of the connecting block 43 on the support screw 42 to be adjusted by rotating the screw barrel 44, thereby allowing the connecting block 43 to be adjusted to support the height of the baffle 31.

[0026] The working principle of the deep foundation pit retaining structure provided by this utility model is as follows:

[0027] In use, firstly, based on the location of the deep foundation pit, drive the support column 1 into the outer edge of the deep foundation pit, leaving a safe distance between the support column 1 and the opening of the deep foundation pit. Then, install the clamp 21 on the side wall of the support column 1. Initially, ensure the clamp 21 is not too tight, so that the pad 22 and the connector 23 are positioned on the side wall of the support column 1 through the clamp 21, facilitating the adjustment of the positions of the pad 22 and the connector 23. Then, corresponding to the angle of the inner side wall of the deep foundation pit, engage the baffle 31 with one end of the connector 23, aligning the through hole 34 on the side wall of the baffle 31 with the connector 23. Then, fix it in series with bolts, connecting the baffle 31 to the column through the connector 23. Then, corresponding to the angle of the inner side wall of the deep foundation pit, rotate the baffle 31, causing the connector 23 to slide along the clamp 21 until the position of the baffle 31 corresponds to the angle of the deep foundation pit. Finally, connect one end of the support screw 42 to the support column through bolts. The connecting piece 23 at the center of the clamp 21 is connected, so that the other end of the support screw 42 abuts against the ground at the edge of the deep foundation pit through the fixed base plate 41, and the fixed base plate 41 is fixed, and the clamp 21 is fixed in place, so that the support screw 42 supports the column 1. Then, by rotating the screw cylinder 44, the screw cylinder 44 drives the connecting block 43 to slide on the support screw 42, so that the position of the connecting block 43 slides to the same height as the back rib 32 fixed on the baffle 31. Then, the snap-fit ​​piece 5 is snapped onto the back rib 32, and the support rod 45 is connected between the snap-fit ​​piece 5 and the connecting block 43, so that the support rod 45 is supported between the support screw 42 and the baffle 31 through the snap-fit ​​piece 5, supporting the position of the baffle 31, and making the baffle 31 more stable. This structure has the advantages of being easy to adapt to different foundation pit angles and easy to install the enclosure structure.

[0028] Compared with related technologies, the deep foundation pit retaining structure provided by this utility model has the following beneficial effects:

[0029] This utility model provides a deep foundation pit retaining structure. First, based on the location of the deep foundation pit, the support column 1 is driven into the outer edge of the deep foundation pit, with a certain safety distance between the support column 1 and the deep foundation pit. The positioning structure 2 is then installed equidistantly on the side wall of the support column 1, with the initial installation of the positioning structure 2 being relatively loose, allowing the pad 22 and the connector 23 in the positioning structure 2 to fit against the side wall of the support column 1 and slide along the side wall of the clamp 21. Then, one end of the retaining structure 3 is engaged with one end of the positioning structure 2, and the position of the positioning structure 2 is adjusted so that the retaining structure 3 and the positioning structure 2 can be fixed with bolts. Then, by adjusting the position of the enclosure structure 3 so that its orientation corresponds to the angle of the inner wall of the deep foundation pit, it is sequentially connected and erected along the outer edge of the deep foundation pit. After erection, the positioning structure 2 is tightened so that the positioning structure 2 fixes the enclosure structure 3 and the column together, enclosing the deep foundation pit inside. At the same time, the support structure 4 is connected to the column 1 so that the support structure 4 supports and reinforces the column. Meanwhile, the enclosure structure 3 is connected to the support structure 4 through the snap-fit ​​5 so that the support structure 4 can also support the enclosure structure 3, thereby strengthening the protective force of the enclosure structure 3.

[0030] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A deep foundation pit retaining structure, characterized in that, include; Pillar (1); Positioning structure (2), the positioning structure (2) is installed on the side wall of the support column (1), the positioning structure (2) includes a clamp (21), a pad (22) and a connector (23), the clamp (21) is clamped to the side wall of the support column (1), the pad (22) is slidably connected to the side wall of the clamp (21), and the connector (23) is slidably connected to the side wall of the clamp (21); The enclosure structure (3) is fixedly connected to the connector (23) by bolts. The enclosure structure (3) includes a baffle (31), a back rib (32), a through groove (33), and a through hole (34). The side walls at both ends of the baffle (31) are provided with through holes (34). The back rib (32) is horizontally fixed to the center of the back of the baffle (31). The support structure (4) is connected to the support column (1) via a connector (23). The support structure (4) includes a fixed base plate (41) and a support screw (42). One end of the support screw (42) is fixedly connected to the connector (23) via a bolt, and the fixed base plate (41) is rotatably connected to the other end of the support screw (42).

2. The deep foundation pit retaining structure according to claim 1, characterized in that, The support column (1) is cylindrical in shape, and the bottom end of the support column (1) is conical, and the height of the support column (1) is greater than the height of the baffle (31).

3. The deep foundation pit retaining structure according to claim 1, characterized in that, One end of the connector (23) has an arc-shaped sidewall, and the arc-shaped sidewall of one end of the connector (23) abuts against the sidewall of the support column (1), and the other end of the connector (23) is engaged with the edge of the baffle (31) through an opening.

4. The deep foundation pit retaining structure according to claim 1, characterized in that, The side wall of the back rib (32) is fitted with a snap-fit ​​member (5), both ends of the snap-fit ​​member (5) are provided with snap-fit ​​openings, and the snap-fit ​​member (5) is connected to the back rib (32) by bolts.

5. The deep foundation pit retaining structure according to claim 4, characterized in that, The support structure (4) further includes a connecting block (43), a screw barrel (44) and a support rod (45). The screw barrel (44) is threaded to the side wall of the support screw (42). The connecting block (43) slides on the side wall of the support screw (42). One end of the support rod (45) is rotatably connected to the side wall of the connecting block (43).

6. The deep foundation pit retaining structure according to claim 5, characterized in that, The other end of the support rod (45) is rotatably connected to the snap-fit ​​member (5), and the support rod (45) is supported between the support screw (42) and the baffle (31) through the connection with the snap-fit ​​member (5) and the connecting block (43).

7. The deep foundation pit retaining structure according to claim 5, characterized in that, The screw cylinder (44) is rotatably connected to the connecting block (43), and the supporting screw (42) is supported between the support column (1) and the fixed base plate (41).

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