A foundation pit supporting structure of a house building project

Abstract

The utility model discloses a kind of foundation pit support structures of house building engineering, including several supporting base plate, several supporting base plate are sequentially arranged along foundation pit inner side wall and form foundation pit enclosure, supporting base plate is in contact with foundation pit inner side wall, connecting piece and diagonal bracing module matched with connecting piece are equipped between adjacent two supporting base plates, connecting piece includes connecting pile and U-shaped fixed plate, two connecting grooves are opened on connecting pile, supporting base plate is detachably connected with corresponding connecting groove, U-shaped fixed plate is detachably connected with connecting pile and supporting base plate, diagonal bracing module one end is installed on U-shaped fixed plate, diagonal bracing module one end is inserted into ground.The beneficial effects of the utility model are that supporting base plate is recycled and reused, which is both economical and environmentally friendly, and the structural strength at the connection point is improved to prevent deformation or failure of the connection point under stress, and the connection point is supported by the diagonal bracing module, further strengthening the structural strength at the connection point, thereby improving the overall structural stability of the foundation pit enclosure.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit support technology, and more specifically, it relates to a foundation pit support structure for building construction projects. Background Technology

[0002] An excavation pit is a pit dug at the foundation design location according to the base elevation and foundation plan dimensions. An excavation pit support structure is a structure that supports and protects the sidewalls of the excavation pit to ensure the safety of underground structure construction and the surrounding environment.

[0003] Utility model patent application number 202420934915.9 discloses a foundation pit support system, including several support plates abutting against the inner wall of the foundation pit. Adjacent support plates are detachably connected by connectors. Several support plates are spliced ​​together by connectors. Support rods are provided on the side of the support plates away from the foundation pit wall. A through groove is opened on the side of the support plates away from the foundation pit wall. An adjustment mechanism for adjusting the angle of the support rod is provided in the through groove. The adjustment mechanism is connected to the upper end of the support rod, and the lower end of the support rod is inserted into the ground.

[0004] Existing technology involves setting up several support plates, which are then pressed against the inner wall of the pit. These support plates are then spliced ​​together using connectors, making it easy to recycle and reuse them.

[0005] However, existing technology splices adjacent support plates together with connectors. The force borne by several support plates is mainly transmitted through the connectors, which can easily cause stress concentration at the connection points. The connection points may become weak links in the structure, making them prone to deformation or failure. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a foundation pit support structure for building construction projects.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A foundation pit support structure for building construction includes several support base plates, which are sequentially arranged along the inner wall of the foundation pit to form a foundation pit enclosure. The support base plates abut against the inner wall of the foundation pit. A connector and a diagonal bracing module cooperating with the connector are provided between two adjacent support base plates. The connector includes a connecting pile and a U-shaped fixing plate. The connecting pile has two connecting grooves corresponding to the two adjacent support base plates and two guide channels communicating with the two connecting grooves respectively. The support base plates are detachably connected to the corresponding connecting grooves. The support base plates have installation channels cooperating with the corresponding guide channels. The two ends of the U-shaped fixing plate pass through the two guide channels and the installation channels on the two adjacent support base plates respectively. One end of the diagonal bracing module is installed on the U-shaped fixing plate, and the other end of the diagonal bracing module is inserted into the ground.

[0009] Further configured, the diagonal bracing module includes a main support column, a first support rod, and a second support rod. The first and second support rods are arranged in parallel and are inclined towards the ground on the main support column. The first and second support rods are fixed to the main support column. The first and second support rods are respectively fixed to the upper and lower ends of the U-shaped fixing plate by bolts. The bottom of the main support column is inserted into the ground.

[0010] Further configured, the connector also includes a U-shaped reinforcing rod, and the support plate has a positioning groove that mates with the reinforcing rod. The two ends of the reinforcing rod are inserted into the positioning grooves on two adjacent support plates.

[0011] Further configured, the reinforcing rod has a screw hole, and the connecting pile has a screw groove that mates with the screw hole, and the screw hole and screw groove are connected by bolts.

[0012] Further configured, the U-shaped fixing plate is fixed with fixing nails inserted into the inner wall of the pit at both ends, the fixing nails have a triangular cross-section, the bottom of the support plate is fixed with a first mounting nail inserted into the ground, and the bottom of the main support column is fixed with a second mounting nail inserted into the ground.

[0013] The support base plate is further configured such that it includes a filling chamber filled with concrete.

[0014] By adopting the above technical solution, the beneficial effects of this utility model are as follows: recycling and reusing the support base plate is both economical and environmentally friendly, while improving the structural strength at the connection point of adjacent support base plates, thereby preventing the connection point from easily deforming or failing under stress. Furthermore, by using the diagonal bracing module to support the connection point, the structural strength at the connection point is further strengthened, thereby improving the overall structural stability of the foundation pit enclosure. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0016] Figure 2 This is a schematic diagram of the structure of the U-shaped plate and the support base plate.

[0017] Figure 3 This is a schematic diagram of the structure for the reinforcement rod to fit into the support base plate.

[0018] Figure 4 A schematic diagram of the structure in which the main support rod, the first support rod, and the second support rod cooperate.

[0019] In the figure: support base plate 1, connector 100, diagonal brace module 200, connecting pile 2, U-shaped fixing plate 3, connecting groove 4, guide channel 5, installation channel 6, main support column 7, first support rod 8, second support rod 9, reinforcing rod 10, positioning groove 11, screw hole 12, screw groove 13, fixing nail 14, first mounting nail 15, second mounting nail 16, filling chamber 17, concrete 18. Detailed Implementation

[0020] Reference Figures 1 to 4 The embodiments of this utility model will be further described below.

[0021] A foundation pit support structure for a building construction project includes several support base plates 1. These support base plates 1 are sequentially arranged along the inner wall of the foundation pit to form a foundation pit enclosure. The support base plates 1 abut against the inner wall of the foundation pit. A connector 100 and a diagonal bracing module 200 cooperating with the connector 100 are provided between adjacent support base plates 1. The connector 100 includes a connecting pile 2 and a U-shaped fixing plate 3. The connecting pile 2 has two connecting grooves 4 corresponding to the two adjacent support base plates 1 and two guide channels 5 respectively communicating with the two connecting grooves 4. The support base plates 1 are inserted into the corresponding connecting grooves 4. The support base plates 1 have installation channels 6 cooperating with the corresponding guide channels 5. The U-shaped fixing plate 3 has two ends... The U-shaped fixing plate 3 passes through two guide channels 5 and two adjacent support base plates 1, respectively. The two ends of the U-shaped fixing plate 3 are fixed with fixing nails 14 that are inserted into the inner side wall of the pit. The cross-section of the fixing nail 14 is triangular. The inclined bracing module 200 includes a main support column 7, a first support rod 8 and a second support rod 9. The first support rod 8 and the second support rod 9 are arranged in parallel and are inclined towards the ground on the main support column 7. The first support rod 8 and the second support rod 9 are fixed on the main support column 7. The first support rod 8 and the second support rod 9 are respectively fixed to the upper and lower ends of the U-shaped fixing plate 3 by bolts. The bottom of the main support column 7 is inserted into the ground.

[0022] Working Principle: During the construction of the foundation pit in a building project, this foundation pit support structure forms a foundation pit enclosure by sequentially installing several support base plates 1 along the inner sidewall of the foundation pit. The support base plates 1 abut against the inner sidewall of the foundation pit, thus resisting the soil pressure on the sidewall of the foundation pit. Connectors 100 and diagonal bracing modules 200 are provided between two adjacent support base plates 1. The connecting piles 2 in the connectors 100 have two connecting grooves 4 corresponding to the two adjacent support base plates 1, and two guide channels 5 communicating with the two connecting grooves 4 respectively. The support base plates 1 are inserted into the corresponding connecting grooves 4. With the two ends of a U-shaped fixing plate passing through the two guide channels 5 and the installation channels 6 on the two adjacent support base plates 1 respectively, the two support base plates 1 and the connecting piles 2 are firmly locked together. The fixing nails 14 at both ends of the U-shaped fixing plate are embedded into the inner sidewall of the foundation pit for fixation, thereby achieving a stable connection between adjacent support base plates 1, effectively resisting the lateral shear force brought by the soil pressure on the pit wall, and preventing the support base plates 1 from falling out of the connecting grooves 4.

[0023] The ends of the first support rod 8 and the second support rod 9 are fixedly connected to the upper and lower ends of the installed U-shaped fixing plate 3 with bolts. With the first support rod 8 and the second support rod 9 parallel and inclined towards the ground, and the bottom of the main support column 7 inserted into the ground, the diagonal bracing module 200 effectively decomposes the soil pressure on the pit wall at the connection point into a vertically downward force (borne by the ground) and an axial pressure along the direction of the first support rod 8 and the second support rod 9. This allows the diagonal bracing module 200 to effectively support the connection point, reduce the bending moment and deformation at the connection point, and improve the overall rigidity and stability of the foundation pit retaining wall.

[0024] When the foundation pit construction is completed and the support base plate 1 needs to be dismantled and recycled, the dismantling process of the support base plate 1 is the reverse of the installation process. The first support rod 8 and the second support rod 9 are fixed to the upper and lower ends of the U-shaped fixing plate 3 with bolts, respectively. First, disconnect the first support rod 8 and the second support rod 9 from the U-shaped fixing plate 3, then disconnect the diagonal brace module 200 from the U-shaped fixing plate 3, remove the main support column 7 and pull out the U-shaped fixing plate 3, then remove the bolts of the reinforcing rod 10, and finally pull the support base plate 1 out of the connecting groove 4 of the connecting pile 2. All major components—support base plate 1, connecting pile 2, U-shaped fixing plate 3, reinforcing rod 10, and diagonal brace module 200—are made of metal, without damage or permanent deformation. After simple cleaning and maintenance, they can be transported to the next construction site for reuse. This achieves the dual goals of economic energy saving and environmental protection.

[0025] This structural design allows the support base plate 1 to be disassembled, recycled, and reused after the foundation pit construction is completed, which is both economical and environmentally friendly. Meanwhile, the connector 100 improves the structural strength at the connection points between adjacent support base plates 1, preventing deformation or failure at these points under stress. The supporting function of the diagonal brace module 200 further strengthens the structural strength at the connection points, thereby improving the overall structural stability of the foundation pit retaining structure and ensuring safety and stability during the foundation pit construction process.

[0026] The connector 100 also includes a U-shaped reinforcing rod 10. The support base plate 1 has a positioning groove 11 that mates with the reinforcing rod 10. The two ends of the reinforcing rod 10 are inserted into the positioning grooves 11 on two adjacent support base plates 1. The reinforcing rod 10 has a screw hole 12. The connecting pile 2 has a screw groove 13 that mates with the screw hole 12. The screw hole 12 and the screw groove 13 are connected by bolts.

[0027] The reinforcing rod 10 is inserted into the positioning grooves 11 of the two adjacent support base plates 1 at both ends. Then, the screw holes 12 on the reinforcing rod 10 are fastened to the screw grooves 13 on the connecting pile 2 by bolts. This makes the reinforcing rod 10, the connecting pile 2 and the two support base plates 1 together form a high-rigidity three-dimensional frame structure, which further enhances the connection strength between the connector 100 and the two adjacent support base plates 1, thereby further avoiding deformation or failure that is prone to occur at the connection point.

[0028] The bottom of the support base plate 1 is fixed with a first mounting nail 15 inserted into the ground, which facilitates fixing the foundation of the support base plate 1 to the foundation, preventing the bottom of the support base plate 1 from being displaced under the action of soil pressure, and improving the stability of the bottom of the retaining structure.

[0029] The bottom end of the main support column 7 is fixed with a second mounting nail 16 inserted into the ground, which facilitates the fixation of the inclined bracing module 200 and effectively transfers the support reaction force of the inclined bracing module 200 to the deep stable soil, preventing the main support column 7 from slipping after being compressed and ensuring the reliability of the support effect of the inclined bracing module 200.

[0030] The support base plate 1 includes a filling chamber 17 filled with concrete 18. In conventional technologies, the support base plate 1 is typically a solid steel plate structure. The concrete 18 filling the filling chamber 17 increases the weight and strength of the support base plate 1. Under the pressure of the soil on the sidewalls of the excavation pit, the heavier support base plate 1 can better resist lateral pressure, improving the lateral deformation resistance of the excavation pit retaining structure. Simultaneously, this composite structure filled with concrete 18 has enhanced overall structural strength compared to a solid steel plate structure, enabling it to withstand greater loads during construction and further improving the safety and stability of the excavation pit retaining structure. In this patent, the concrete 18 filling of the filling chamber 17 of the support base plate 1 reduces the amount of steel used, lowering the cost of using the support base plate 1.

[0031] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "join," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A foundation pit support structure for a building construction project, comprising a plurality of support base plates (1), wherein the plurality of support base plates (1) are sequentially arranged along the inner sidewall of the foundation pit to form a foundation pit enclosure, the support base plates (1) abutting against the inner sidewall of the foundation pit, characterized in that, A connector (100) and a diagonal brace module (200) cooperating with the connector (100) are provided between two adjacent support base plates (1). The connector (100) includes a connecting pile (2) and a U-shaped fixing plate (3). The connecting pile (2) has two connecting grooves (4) corresponding to the two adjacent support base plates (1) and two guide channels (5) respectively connected to the two connecting grooves (4). The support base plate (1) is detachably connected to the corresponding connecting groove (4). The support base plate (1) has an installation channel (6) cooperating with the corresponding guide channel (5). The two ends of the U-shaped fixing plate (3) pass through the two guide channels (5) and the installation channels (6) on the two adjacent support base plates (1) respectively. One end of the diagonal brace module (200) is installed on the U-shaped fixing plate (3), and the other end of the diagonal brace module (200) is inserted into the ground.

2. The foundation pit support structure for building construction according to claim 1, characterized in that, The inclined support module (200) includes a main support column (7), a first support rod (8) and a second support rod (9). The first support rod (8) and the second support rod (9) are arranged in parallel, and the first support rod (8) and the second support rod (9) are inclined towards the ground on the main support column (7). The first support rod (8) and the second support rod (9) are fixed on the main support column (7). The first support rod (8) and the second support rod (9) are respectively fixed to the upper and lower ends of the U-shaped fixing plate (3) by bolts. The bottom of the main support column (7) is inserted into the ground.

3. The foundation pit support structure for building construction according to claim 2, characterized in that, The connector (100) also includes a U-shaped reinforcing rod (10), and the support base plate (1) has a positioning groove (11) that cooperates with the reinforcing rod (10). The two ends of the reinforcing rod (10) are inserted into the positioning grooves (11) on two adjacent support base plates (1).

4. The foundation pit support structure for building construction according to claim 3, characterized in that, The reinforcing rod (10) has a screw hole (12), and the connecting pile (2) has a screw groove (13) that matches the screw hole (12). The screw hole (12) and the screw groove (13) are connected by bolts.

5. The foundation pit support structure for a building construction project according to claim 4, characterized in that, The U-shaped fixing plate (3) is fixed with fixing nails (14) inserted into the inner wall of the pit at both ends. The cross-section of the fixing nail (14) is triangular. The bottom of the support base plate (1) is fixed with a first mounting nail (15) inserted into the ground. The bottom of the main support column (7) is fixed with a second mounting nail (16) inserted into the ground.

6. The foundation pit support structure for building construction according to claim 1, characterized in that, The support base plate (1) includes a filling chamber (17) filled with concrete (18).

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