Deep foundation pit supporting structure for constructional engineering

Abstract

The utility model relates to a deep foundation pit supporting structure for constructional engineering, which aims to solve the technical problem that the current supporting device is inconvenient to adjust according to the depth of a foundation pit, and comprises a main plate, and the main plate comprises a protection end and a supporting end; the fixing mechanism is used for limiting and fixing the main plate and comprises a fixing plate and a ground nail, the fixing plate is horizontally and fixedly installed above one side of the main plate, the protection end is arranged above the fixing plate, the supporting end is arranged below the fixing plate, and a fixing hole is formed in the side, away from the main plate, of the upper surface of the fixing plate in a penetrating mode; the protection end of the main plate is arranged above the fixing plate, the upper portion of a foundation pit can be protected, rubbles and other garbage are prevented from falling into the foundation pit to affect construction, the lead screw is in threaded connection with the threaded groove, the auxiliary plate can be driven to move up and down in the adjusting groove in the main plate by rotating the hand wheel, and construction is facilitated. The supporting area can be adjusted according to the depth of the foundation pit, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the field of construction engineering, and particularly relates to a deep foundation pit support structure for construction engineering. Background Technique

[0002] Foundation pit engineering mainly includes the design and construction of the foundation pit support system and earth excavation, and is a comprehensive systematic project.

[0003] According to the public patent CN215105366U, a deep foundation pit support structure for construction engineering starts a jack to lift a threaded sleeve and a threaded rod. When support is needed, the distance between the threaded rod and the jack is extended to facilitate a support structure in a triangular shape with a return-shaped waterproof member.

[0004] In the process of implementing the present utility model, the inventor found that at least the following problems in the prior art have not been solved. The above case supports the inner wall of the foundation pit by installing a jack and a return-shaped waterproof member at the bottom end of the foundation pit. However, during use, the depth of the foundation pit may be adjusted according to the use requirements. In this way, it is necessary to remove the support device for secondary installation, which is cumbersome to operate and affects the work progress. Moreover, debris such as gravel above the foundation pit is likely to fall into the foundation pit and affect the construction. Therefore, a new technical solution needs to be designed to solve this problem. Content of the Utility Model

[0005] The purpose of the present utility model is to overcome the deficiencies of the prior art, adapt to the actual needs, and provide a deep foundation pit support structure for construction engineering to solve the technical problem that the current support device is not convenient to adjust according to the depth of the foundation pit.

[0006] To achieve the purpose of the present utility model, the technical solution adopted by the present utility model is as follows: design a deep foundation pit support structure for construction engineering, including a main board, and the main board includes a protection end and a support end; a fixing mechanism: used for the limit fixation of the main board, and the fixing mechanism includes a fixing plate and a ground nail. The fixing plate is horizontally and fixedly installed above one side of the main board. The protection end is placed above the fixing plate, and the support end is placed below the fixing plate. A fixing hole is vertically opened on the upper surface of the fixing plate away from the main board, and the ground nail is movably connected to the fixing hole; an adjusting mechanism: used for adjusting the support range of the foundation pit, and the adjusting mechanism includes a secondary board. An adjusting groove is vertically opened on the bottom side of the main board, and the secondary board is slidably connected to the adjusting groove. A threaded groove is vertically opened in the middle of the top end of the secondary board, and a lead screw is threadedly connected to the inner side of the threaded groove.

[0007] Preferably, a bottom board is horizontally and fixedly installed at the bottom end of the secondary board, and one end of the bottom board is flush with one side of the main board close to the foundation pit.

[0008] Preferably, the lead screw is rotatably connected to the top inner wall of the adjustment groove through a bearing, and a handwheel is fixedly installed at one end of the lead screw outside the main board.

[0009] Preferably, the adjustment groove is dimensionally matched with the auxiliary board, and the auxiliary board is dimensionally matched with the main board.

[0010] Preferably, two groups of limit blocks are fixedly installed at one end of the auxiliary board inside the adjustment groove, and the two groups of limit blocks are symmetrically distributed on both sides of the auxiliary board.

[0011] Preferably, a triangular reinforcing plate is vertically fixedly installed on the upper surface of the fixing plate, and the reinforcing plate is fixedly connected to the outside of the main board.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. In the present utility model, the protective end of the main board is placed above the fixing plate, which can protect the upper part of the foundation pit, prevent debris such as gravel from falling into the foundation pit and affecting the construction. By threading the lead screw into the threaded groove and rotating the handwheel, the auxiliary board can be driven to move up and down in the adjustment groove inside the main board, and the support area can be adjusted according to the depth of the foundation pit, with a wide range of applications.

[0014] 2. In the present utility model, a bottom plate is horizontally fixedly installed at the bottom end of the auxiliary board, which can be pressed tightly against the bottom end of the foundation pit, further improving the support stability of the main board and the auxiliary board on the inner wall of the foundation pit. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic connection diagram of the main board and the auxiliary board of the present utility model;

[0017] Figure 3 is a side view of the present utility model;

[0018] In the figure: 1, main board; 11, protective end; 12, support end; 13, fixing plate; 14, fixing hole; 15, ground nail; 16, reinforcing plate; 2, adjustment groove; 21, auxiliary board; 22, threaded groove; 23, lead screw; 24, handwheel; 25, limit block; 26, bottom plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The present utility model will be further described below with reference to the drawings and embodiments:

[0020] A deep foundation pit support structure for building engineering, see Figures 1 to 3, including the main board 1, the main board 1 includes a protection end 11 and a support end 12; a fixing mechanism: used for limiting and fixing the main board 1, the fixing mechanism includes a fixing plate 13 and a ground nail 15, the fixing plate 13 is horizontally and fixedly installed above one side of the main board 1, the protection end 11 is placed above the fixing plate 13, the support end 12 is placed below the fixing plate 13, a fixing hole 14 is penetrated and opened on the upper surface of the fixing plate 13 away from the main board 1, the ground nail 15 is movably connected with the fixing hole 14, and a triangular reinforcing plate 16 is vertically and fixedly installed on the upper surface of the fixing plate 13, and the reinforcing plate 16 is fixedly connected with the outer side of the main board 1.

[0021] Vertically place the support end 12 of the main board 1 in the foundation pit, make the fixing plate 13 on the outer side of the main board 1 fit the ground at the edge of the foundation pit, and then adjust the support end 12 of the main board 1 to fit the inner wall of the foundation pit. By passing the ground nail 15 through the fixing hole 14 opened on the upper surface of the fixing plate 13 and inserting it into the soil, the fixing plate 13 can be limited and fixed. By placing the protection end 11 of the main board 1 above the fixing plate 13, the upper part of the foundation pit can be protected to prevent debris such as gravel from falling into the foundation pit and affecting the construction. Through the triangular reinforcing plate 16 on the upper surface of the fixing plate 13, the connection stability between the fixing plate 13 and the main board 1 can be improved.

[0022] Specifically, refer to Figures 1 to 3 , an adjusting mechanism: used for adjusting the support range of the foundation pit, the adjusting mechanism includes a secondary board 21, an adjusting groove 2 is vertically opened at the bottom side of the main board 1, the secondary board 21 is slidably connected with the adjusting groove 2, a threaded groove 22 is vertically opened in the middle of the top end of the secondary board 21, a lead screw 23 is threadedly connected inside the threaded groove 22, the lead screw 23 is rotatably connected with the inner wall of the top end of the adjusting groove 2 through a bearing, and a hand wheel 24 is fixedly installed at one end of the lead screw 23 placed outside the main board 1.

[0023] By threadedly connecting the lead screw 23 with the threaded groove 22 in the middle of the secondary board 21, when the staff rotates the hand wheel 24, the lead screw 23 can be driven, thereby driving the secondary board 21 to move up and down in the adjusting groove 2 inside the main board 1, further adjusting the connection area between the main board 1 and the secondary board 21, and the support area can be adjusted according to the depth of the foundation pit, with a wide range of use. It should be noted that: since the inner wall of the foundation pit is soil, when pressure is applied during the installation of the main board 1, the secondary board 21 can be made to fit the inner wall of the foundation pit.

[0024] Furthermore, refer to Figures 1 to 3 , a bottom board 26 is horizontally and fixedly installed at the bottom end of the secondary board 21, and one end of the bottom board 26 is flush with the side of the main board 1 that fits the foundation pit.

[0025] By horizontally and fixedly installing a bottom board 26 at the bottom end of the secondary board 21, when the secondary board 21 moves downward, the bottom board 26 can be pushed to tightly press against the bottom end of the foundation pit, further improving the support stability of the main board 1 and the secondary board 21 against the inner wall of the foundation pit.

[0026] It should be noted that, referring to Figure 2 , the adjustment groove 2 is matched with the size of the auxiliary plate 21, and the auxiliary plate 21 is matched with the size of the main plate 1. Two groups of limit blocks 25 are fixedly installed at one end of the auxiliary plate 21 placed inside the adjustment groove 2, and the two groups of limit blocks 25 are symmetrically distributed on both sides of the auxiliary plate 21.

[0027] The limit blocks 25 on both sides of the auxiliary plate 21 can limit the auxiliary plate 21, improve the movement stability of the auxiliary plate 21. Rotating the handwheel 24 in the reverse direction can drive the auxiliary plate 21 to move upward and be received into the adjustment groove 2, which is convenient for the transportation and transfer of the main plate 1.

[0028] In addition, the components designed in the present utility model are all common standard components or components known to those skilled in the art. Their structures and principles can all be known by those skilled in the art through technical manuals or obtained through conventional experimental methods. Those skilled in the art can fully implement them without further elaboration. The content protected by the present utility model does not involve improvements to the internal structure and method.

[0029] The embodiments disclosed in the present utility model are preferred embodiments, but not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present utility model based on the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of the present utility model, they are within the protection scope of the present utility model.

Claims

1. A deep foundation pit support structure for construction projects, including a main board (1), characterized in that, The main board (1) includes a protection end (11) and a support end (12); Fixing mechanism: used for limiting and fixing the main board (1). The fixing mechanism includes a fixing plate (13) and a ground nail (15). The fixing plate (13) is horizontally and fixedly installed above one side of the main board (1). The protection end (11) is placed above the fixing plate (13), and the support end (12) is placed below the fixing plate (13). A fixing hole (14) is penetrated and opened on the upper surface of the fixing plate (13) away from the main board (1). The ground nail (15) is movably connected to the fixing hole (14); Adjusting mechanism: used for adjusting the support range of the foundation pit. The adjusting mechanism includes a secondary board (21). An adjusting groove (2) is vertically opened on the bottom side of the main board (1). The secondary board (21) is slidably connected to the adjusting groove (2). A threaded groove (22) is vertically opened in the middle of the top end of the secondary board (21). A lead screw (23) is threadedly connected to the inner side of the threaded groove (22).

2. The supporting structure for deep foundation pit of a construction project according to claim 1, characterized in that, The bottom end of the secondary board (21) is horizontally and fixedly installed with a bottom plate (26). One end of the bottom plate (26) is flush with one side of the main board (1) fitting the foundation pit.

3. A deep foundation pit support structure for a construction project as described in claim 1, characterized in that, The lead screw (23) is rotatably connected to the inner wall of the top end of the adjusting groove (2) through a bearing. A handwheel (24) is fixedly installed at one end of the lead screw (23) outside the main board (1).

4. A deep foundation pit support structure for a construction project according to claim 1, characterized in that, The size of the adjusting groove (2) matches the size of the secondary board (21), and the size of the secondary board (21) matches the size of the main board (1).

5. The supporting structure for deep foundation pit of a construction project according to claim 1, characterized in that, Two limiting blocks (25) are fixedly installed at one end of the secondary board (21) inside the adjusting groove (2). The two limiting blocks (25) are symmetrically distributed on both sides of the secondary board (21).

6. A deep foundation pit support structure for a construction project as described in claim 1, characterized in that, A triangular reinforcing plate (16) is vertically and fixedly installed on the upper surface of the fixing plate (13). The reinforcing plate (16) is fixedly connected to the outside of the main board (1).

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