Foundation pit supporting structure for building construction

Abstract

The utility model provides a foundation pit supporting structure for building construction, which comprises a supporting plate assembly connected on the bottom surface and the side surface of a foundation pit and a plurality of anchoring structures fixed on the supporting plate assembly, and two anchoring structures close to the bottom surface of the foundation pit are connected through a fastening structure. The supporting plate assembly comprises a first supporting plate vertically arranged on the side face of the foundation pit and a second supporting plate horizontally arranged on the bottom face of the foundation pit. A plurality of anchoring structures are arranged on the first supporting plate and the second supporting plate in a penetrating mode. According to the foundation pit supporting structure for building construction, the stability of foundation pit supporting can be improved, the foundation pit wall can be well supported and protected, meanwhile, the occupied area is reduced, and the foundation pit supporting structure has wide practicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of foundation pit support, in particular to a foundation pit support structure for building construction. 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 foundation pit support structure can be used to support the foundation pit, avoid foundation pit collapse, and play a role in safety protection.

[0003] In the use of foundation pits in construction projects, foundation pit support frames are often installed inside the foundation pits to protect the foundation pit walls. However, due to the instability of the overall structure of the foundation pit support frame, it cannot provide good support and protection for the foundation pit walls, causing the foundation pit walls to loosen and collapse, injuring workers and posing safety hazards to users. In addition, existing foundation pit support structures are often supported by setting inclined rods at the bottom of the foundation pit, which occupies a large area, easily affects the construction at the bottom, and has poor practicality.

[0004] This solution proposes a foundation pit support structure for building construction, which is used to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of the utility model is to provide a foundation pit support structure for building construction, which solves the technical problem of how to improve the stability of foundation pit support, plays a good supporting and protective role on the foundation pit wall, and at the same time reduces the floor area, and has wide practicality.

[0006] A foundation pit support structure for building construction comprises a support plate assembly connected to the bottom and side surfaces of the foundation pit, a plurality of anchor structures fixed to the support plate assembly, and two anchor structures close to the bottom surface of the foundation pit are connected by a fastening structure.

[0007] The support plate assembly includes a support plate 1 vertically arranged on the side of the foundation pit, and a support plate 2 horizontally arranged on the bottom surface of the foundation pit;

[0008] A plurality of the anchoring structures are respectively provided on the supporting plate 1 and the supporting plate 2.

[0009] The anchoring structure comprises an anchoring tube and concrete poured into the anchoring tube, wherein the concrete is in contact with the interior of the foundation pit; and a tip portion is arranged at the inner end of the anchoring tube.

[0010] An anchor rod is movably arranged inside the anchor cylinder, the outer end of the anchor rod is detachably connected to the anchor cylinder via a fixing bolt, and the inner end of the anchor rod is provided with an inclined surface.

[0011] The anchor rod is provided with a long notch in a region close to the outer end thereof, and there is a distance between the long notch and the inner side surface of the anchor tube.

[0012] The fastening structure comprises a positioning column and a positioning bolt passing through the positioning column, a long through hole is arranged on the outer side of the positioning column, and the positioning bolt passes through the long through hole;

[0013] One end of the positioning column is provided with a threaded portion, and is connected to the outer end of one of the adjacent anchor rods through the threaded portion, and the small end of the positioning bolt is connected to the outer end of another adjacent anchor rod.

[0014] A plurality of fixing holes are arranged on the supporting plate 1 and the supporting plate 2.

[0015] The beneficial effects of the utility model are:

[0016] (1) An anchoring structure is provided, and a tip portion is provided at the inner end of the anchoring tube, and the tip portion can be inserted into the interior of the foundation pit wall or the bottom of the foundation pit, thereby increasing the connection strength between the support plate 1 and the support plate 2 on the foundation pit;

[0017] (2) In addition, the anchor rod can slide in the anchor tube, and further increase the contact area of ​​the anchor structure on the foundation pit wall or the bottom of the foundation pit, so that the connection strength between the anchor structure and the foundation pit is further improved;

[0018] (3) A long notch is provided near the outer end of the anchor rod. When the anchor rod penetrates into the interior of the foundation pit, the anchor tube is connected to the interior of the foundation pit. When concrete is poured into the anchor tube, the concrete will pass through the anchor tube and enter the interior of the foundation pit. After the concrete is solidified, the positioning strength of the anchor structure is greatly increased.

[0019] (4) A fastening structure is provided to help ensure the verticality of support plate 1 and support plate 2, and is used when there are strict requirements on the shape of the foundation pit. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the foundation pit supporting structure in the utility model.

[0021] Figure 2 It is a structural schematic diagram of the anchor rod in the utility model.

[0022] Figure 3 It is a schematic diagram of the connection structure of the anchor rod and the fastening structure in the utility model.

[0023] Figure 4 It is a structural schematic diagram of the support plate assembly in the utility model.

[0024] Among them, the figure markings are: 1. Support plate 1; 2. Anchor tube; 3. Fixing bolt; 4. Anchor rod; 41. Inclined surface; 42. Long notch; 5. Positioning bolt; 6. Positioning column; 61. Long through hole; 7. Support plate 2; 11. Fixing hole. DETAILED DESCRIPTION

[0025] In order to more clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods.

[0026] See also Figure 1-Figure 4 A foundation pit support structure for construction includes a support plate assembly connected to the bottom and side surfaces of the foundation pit, a plurality of anchor structures fixed on the support plate assembly, and two anchor structures close to the bottom surface of the foundation pit are connected by a fastening structure.

[0027] The support plate assembly includes a support plate 1 vertically arranged on the side of the foundation pit and a support plate 2 7 horizontally arranged on the bottom surface of the foundation pit;

[0028] A plurality of anchoring structures are respectively provided on the support plate 1 and the support plate 2 7 .

[0029] The anchoring structure comprises an anchoring tube 2 and concrete poured into the anchoring tube 2, wherein the concrete is in contact with the interior of the foundation pit; a tip portion is arranged at the inner end of the anchoring tube 2.

[0030] An anchor rod 4 is movably arranged inside the anchor tube 2 . The outer end of the anchor rod 4 is detachably connected to the anchor tube 2 via a fixing bolt 3 . The inner end of the anchor rod 4 is provided with an inclined surface 41 .

[0031] A long notch 42 is provided in a region near the outer end of the anchor rod 4 , and there is a distance between the long notch 42 and the inner side surface of the anchor tube 2 .

[0032] The fastening structure includes a positioning column 6 and a positioning bolt 5 passing through the positioning column 6. A long through hole 61 is provided on the outer side of the positioning column 6, and the positioning bolt 5 passes through the long through hole 61.

[0033] One end of the positioning column 6 is provided with a threaded portion, and is connected to the outer end of one of the adjacent anchor rods 4 through the threaded portion, and the small end of the positioning bolt 5 is connected to the outer end of another adjacent anchor rod 4 .

[0034] The positioning bolt 5 can slide back and forth in the long through hole 61 to adjust the position and ensure the accuracy of the connection with the anchor rod below.

[0035] A plurality of fixing holes 11 are provided on the supporting plate 1 and the supporting plate 2 7 .

[0036] The specific working process of this utility model:

[0037] The support plate 1 is attached to the side wall of the foundation pit, and the support plate 2 7 is fixed horizontally on the bottom surface of the foundation pit. Anchor tubes 2 and anchor rods 4 are inserted into the support plate 1 and the support plate 2 7, and the outer ends of the anchor tubes 2 and the anchor rods 4 are connected by fixing bolts 3;

[0038] The inner end of the anchor tube 2 is provided with a tip portion, which can be inserted into the foundation pit wall or the bottom of the foundation pit, thereby increasing the connection strength between the support plate 1 and the support plate 2 7 on the foundation pit;

[0039] When the anchor tube 2 is fixed, the fixing bolt 3 is removed, and the anchor rod 4 is pushed to slide inward in the anchor tube 2, and the contact area of ​​the anchor structure on the foundation pit wall or the bottom of the foundation pit is further increased, so that the connection strength between the anchor structure and the foundation pit is further improved;

[0040] The anchor rod 4 is provided with a long notch 42 near its outer end. When the anchor rod 4 penetrates into the interior of the foundation pit, the anchor tube 2 is connected with the interior of the foundation pit. When concrete is poured into the anchor tube 2, the concrete passes through the anchor tube 2 and contacts the long notch 42 and enters the interior of the foundation pit. After the concrete is solidified, the positioning strength of the anchor structure is greatly increased.

[0041] A fastening structure is provided to help ensure the verticality of the support plate 1 and the support plate 2 7, and is used in the case of vertical excavation of the foundation pit.

[0042] Technical features not described in the present invention can be achieved through or by adopting existing technologies, and will not be elaborated here. Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A foundation pit support structure for construction, characterized in that: It includes a support plate assembly connected to the bottom and side surfaces of a foundation pit, and a plurality of anchoring structures fixed on the support plate assembly. Two anchoring structures close to the bottom surface of the foundation pit are connected via a fastening structure.

2. The foundation pit support structure for construction according to claim 1, characterized in that: The support plate assembly comprises a support plate 1 (1) vertically arranged on the side of the foundation pit, and a support plate 2 (7) horizontally arranged on the bottom surface of the foundation pit; A plurality of anchor structures are respectively provided on the support plate 1 (1) and the support plate 2 (7).

3. The foundation pit support structure for construction according to claim 2, characterized in that: The anchoring structure comprises an anchoring tube (2) and concrete poured into the anchoring tube (2), wherein the concrete is in contact with the interior of the foundation pit; and a tip portion is provided at the inner end of the anchoring tube (2).

4. The foundation pit supporting structure for construction according to claim 3 is characterized in that: An anchor rod (4) is movably arranged inside the anchor cylinder (2); the outer end of the anchor rod (4) is detachably connected to the anchor cylinder (2) via a fixing bolt (3); and the inner end of the anchor rod (4) is provided with an inclined surface (41).

5. The foundation pit supporting structure for construction according to claim 4, characterized in that: The anchor rod (4) is provided with a long notch (42) in a region close to the outer end thereof, and there is a distance between the long notch (42) and the inner side surface of the anchor tube (2).

6. The foundation pit supporting structure for construction according to claim 4, characterized in that: The fastening structure comprises a positioning column (6) and a positioning bolt (5) passing through the positioning column (6); a long through hole (61) is arranged on the outside of the positioning column (6), and the positioning bolt (5) passes through the long through hole (61); One end of the positioning column (6) is provided with a threaded portion and is connected to the outer end of one of the adjacent anchor rods (4) via the threaded portion; the small end of the positioning bolt (5) is connected to the outer end of another adjacent anchor rod (4).

7. The foundation pit supporting structure for construction according to claim 2, characterized in that: A plurality of fixing holes (11) are provided on the supporting plate 1 (1) and the supporting plate 2 (7).

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