Foundation pit supporting pile

Abstract

The utility model provides a foundation pit supporting pile, and belongs to the technical field of foundation pit construction engineering. According to the technical scheme, the foundation pit supporting pile comprises a plurality of pile bodies continuously distributed around the side wall of a foundation pit and further comprises a connecting plate body, the connecting plate body is provided with first connecting pieces, the pile bodies are provided with second connecting pieces, and the first connecting pieces and the second connecting pieces are connected in a matched mode, so that the connecting plate body is connected between the multiple pile bodies in the first direction; and the first direction is crossed with the axial direction of the pile body. The second connecting pieces are arranged on the pile bodies, the first connecting pieces are arranged on the connecting plate body, and the first connecting pieces and the second connecting pieces are connected in a matched mode, so that the connecting plate body is transversely arranged between the multiple pile bodies, transverse connection between the multiple pile bodies is achieved, and the connecting strength between the pile bodies is improved; and the vertical and transverse supporting force on the foundation pit is improved, the foundation pit is effectively prevented from collapsing, and normal construction is guaranteed.

Description

Technical Field

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

[0002] An excavation pit is a pit dug according to the foundation design location, based on the base elevation and foundation plan dimensions. It is primarily used for temporary pits excavated when constructing buildings, structures, or laying underground pipelines. To prevent pit collapse, support structures are typically installed, such as sheet piles, bored piles, and diaphragm walls. Among these, excavation pit support piles are a type of support structure installed around the perimeter of the pit to support and stabilize the soil, preventing collapse and ensuring construction safety. Excavation pit support piles primarily bear the horizontal and vertical loads of the soil, ensuring that the soil around the pit does not collapse or slide, resisting groundwater pressure, preventing soil erosion within the pit, and ensuring pit stability. Simultaneously, they bear the self-weight and equipment loads during construction, transferring the load to the foundation through their supporting function, ensuring the full utilization of the foundation's bearing capacity.

[0003] Currently, the commonly used foundation pit support piles are composite pile structures that are continuously set around the foundation pit. However, most of these composite pile structures consist of multiple piles independently set on the side wall of the foundation pit, and there is a lack of lateral connection between the multiple piles. This results in low lateral support force for the foundation pit, making the foundation pit prone to collapse and affecting normal construction. Utility Model Content

[0004] This utility model addresses the problem that the lack of lateral connection between multiple piles in current foundation pit support piles makes the foundation pit prone to collapse, and proposes a foundation pit support pile.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a foundation pit support pile, including multiple piles continuously distributed around the sidewall of the foundation pit, and a connecting plate. The connecting plate is provided with a first connector, and the piles are provided with a second connector. The first connector and the second connector are connected in cooperation, so that the connecting plate is connected between the multiple piles along a first direction, and the first direction intersects the axial direction of the piles.

[0007] Furthermore, the first connector includes a plurality of protrusions on the connecting plate that protrude in a direction away from the pile body. The plurality of protrusions are evenly spaced along the first direction, and a recess is formed between two adjacent protrusions.

[0008] Furthermore, the second connector includes a protrusion extending axially along the pile body, and the protrusion has a groove on its end face near the pile body, with the protrusion engaging with the groove.

[0009] Furthermore, the protrusion is connected in sequence with a fixing part and a stop part along the axial direction of the pile body. The fixing part is connected with the slot, and the cross-sectional dimension of the stop part is larger than the cross-sectional dimension of the recess.

[0010] Furthermore, the fixing part has a dovetail structure, and the slot has a dovetail groove structure.

[0011] Furthermore, multiple protrusions are evenly spaced along the axial direction of the pile, and multiple connecting plates are provided along the axial direction of the pile.

[0012] Furthermore, the connecting plate includes multiple connecting sub-plates, which are connected along a first direction and have a first end and a second end. The first end has a first connecting part, and the second end has a second connecting part. The first connecting parts and the second connecting parts of two adjacent connecting sub-plates are connected together.

[0013] Furthermore, the first connecting part is provided with an installation block extending along the axial direction of the pile body, and the second connecting part is provided with an installation groove extending along the axial direction of the pile body, and the installation block and the installation groove are fitted together.

[0014] Furthermore, the pile body is provided with a pile core, a steel pipe sleeve, a concrete interlayer and a reinforcing cage in sequence from the inside to the outside along its own radial direction, and the second connector is located on the outside of the reinforcing cage.

[0015] Furthermore, the steel pipe sleeve is provided with multiple guide holes penetrating the steel pipe sleeve along its own radial direction.

[0016] As can be seen from the above technical solutions, the advantages of this utility model are:

[0017] This utility model provides a second connector on the pile body and a first connector on the connecting plate body. Through the cooperation of the first and second connectors, the connecting plate body is placed horizontally between multiple pile bodies, thereby achieving a lateral connection between the multiple pile bodies. This improves the connection strength between the pile bodies, enhances the vertical and lateral support force on the foundation pit, effectively prevents the foundation pit from collapsing, and ensures the normal progress of construction. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the support pile in one embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the connecting plate structure in one embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the pile body in one embodiment of the present invention.

[0022] Explanation of key figure labels:

[0023] 100. Pile body; 110. Protrusion; 111. Fixing part; 112. Stopping part; 120. Pile core; 130. Steel pipe sleeve; 140. Concrete interlayer; 150. Reinforcing cage; 160. Drainage hole; 200. Connecting plate; 210. Protrusion; 211. Slot; 220. Recess; 230. Connecting plate; 231. Mounting block; 232. Mounting groove. Detailed Implementation

[0024] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0025] Please see Figures 1-3 A foundation pit support pile includes multiple piles 100 continuously distributed around the sidewall of the foundation pit, and a connecting plate 200. The connecting plate 200 is provided with a first connector, and the piles 100 are provided with a second connector. The first connector and the second connector are connected in cooperation, so that the connecting plate 200 is connected between the multiple piles 100 along a first direction, and the first direction intersects the axis of the piles 100.

[0026] In this embodiment, as Figure 1As shown, the foundation pit can be a rectangular pit-shaped structure extending vertically. Multiple piles 100 are continuously distributed along the sidewall of the foundation pit. Each pile 100 is a vertically cast concrete structure. Taking one sidewall as an example, the bottom end of each pile 100 is inserted and fixed to the bottom of the foundation pit. Multiple piles 100 are continuously distributed along the length of this sidewall. A second connector is provided on each pile 100. Furthermore, the connecting plate 200 is a rectangular plate-shaped structure placed horizontally. Along the length of the connecting plate 200, a first connector is provided on one end face of the connecting plate 200 near the side wall of the foundation pit. The first connector and a second connector can be connected to each other, allowing the connecting plate 200 to be horizontally connected between multiple piles 100. The length of the connecting plate 200 is perpendicular to the axial direction of the piles 100 and consistent with the length direction of the side wall of the foundation pit, thus achieving a lateral connection between the multiple piles 100 and improving the connection strength between them. In the same manner, multiple piles 100 are cast and distributed on the other side walls of the foundation pit, and all are connected and fixed by the connecting plate 200, thus supporting the side walls of the foundation pit.

[0027] In the above structure, by setting a second connector on the pile body 100 and a first connector on the connecting plate 200, the connecting plate 200 is horizontally placed between multiple pile bodies 100 through the cooperation of the first connector and the second connector, thereby realizing the lateral connection between the multiple pile bodies 100. This increases the connection tightness between the multiple pile bodies 100, thereby improving the connection strength between the pile bodies 100, and thus improving the vertical and lateral support force on the foundation pit. This effectively prevents the foundation pit from collapsing, thereby improving the support capacity of the foundation pit and ensuring the normal progress of construction.

[0028] In the specific structure of the connecting plate 200, the first connecting member includes a plurality of protrusions 210 provided on the connecting plate 200 along the direction away from the pile 100. The plurality of protrusions 210 are evenly spaced along the first direction, and a recess 220 is formed between two adjacent protrusions 210.

[0029] In this embodiment, as Figure 1As shown, the connecting plate 200 has multiple protrusions 210, which protrude from the end face of the connecting plate 200 toward a direction away from the pile 100. The length direction of the protrusions 210 is the width direction of the connecting plate 200, and the length of the protrusions 210 is the same as the width of the connecting plate 200. The multiple protrusions 210 are evenly spaced along the length direction of the connecting plate 200, and a recess 220 is formed between two adjacent protrusions 210. The length direction of the recess 220 is the width direction of the connecting plate 200, and... The length of the recess 220 is the same as the width of the connecting plate 200. Multiple protrusions 210 and multiple recesses 220 are distributed sequentially and alternately along the length of the connecting plate 200, making the connecting plate 200 a continuous wave-like structure. When a lateral force is transmitted to the connecting plate 200, this structure facilitates the dispersion of force, improves the structural strength of the connecting plate 200, and further improves the connection strength of the pile 100, thereby increasing the lateral support force on the foundation pit and the pile 100, and effectively preventing the connecting plate 200 from breaking.

[0030] Specifically, the connecting plate 200 includes multiple connecting plates 230, which are connected along a first direction and have a first end and a second end. The first end has a first connecting portion, and the second end has a second connecting portion. The first connecting portions and second connecting portions of two adjacent connecting plates 230 are connected together. The first connecting portion has an installation block 231 extending axially along the pile body 100, and the second connecting portion has an installation groove 232 extending axially along the pile body 100. The installation block 231 and the installation groove 232 are inserted into each other.

[0031] In this embodiment, as Figure 1 , Figure 2 As shown, the connecting plate 200 is composed of multiple connecting plates 230, which are connected sequentially along a first direction. Each connecting plate 230 has a first end and a second end at its two ends along its length. The first end has a first connecting portion, and the second end has a second connecting portion. During installation, in two adjacent connecting plates 230, the first connecting portion of one connecting plate 200 engages with the second connecting portion of the other connecting plate 200, thus achieving a combined connection of multiple connecting plates 230. By dividing the connecting plate 200 into a structure combining multiple connecting plates 230, the overall length of the connecting plate 200 can be adjusted according to the number of connecting plates 230, thereby adapting to the needs of foundation pits of different sizes and effectively improving the applicability of the support pile. The structure with multiple connecting plates 230 facilitates the installation and disassembly of the connecting plate 200, improving work efficiency. Furthermore, modular production is possible, facilitating maintenance and replacement, effectively reducing production costs, and also simplifying storage and transportation.

[0032] Specifically, the first connecting part is a mounting block 231 extending along the width direction of the connecting plate 230, and correspondingly, the second connecting part is a mounting groove 232 extending along the width direction of the connecting plate 230. During installation, the mounting block 231 is inserted into the mounting groove 232 to improve the connection strength and stability between the connecting plates 230, and also to provide positioning between the connecting plates 230.

[0033] In the specific connection structure between the connecting plate 200 and the pile 100, the second connector includes a protrusion 110 extending along the axial direction of the pile 100. The protrusion 210 has a groove 211 on its end face near the pile 100, and the protrusion 110 and the groove 211 are engaged and inserted.

[0034] In this embodiment, a protrusion 110 is provided on the side of the pile body 100 away from the sidewall of the foundation pit. The protrusion 110 is a block-shaped structure that protrudes outward along the radial direction of the pile body 100. The length direction of the protrusion 110 is the axial direction of the pile body 100. Correspondingly, while one end of the protrusion 210 on the connecting plate 200 protrudes outward, the opposite end forms an outwardly recessed groove 211. During installation, the groove 211 on the connecting plate 200 is engaged with the protrusion 110 on the pile body 100 to fix the connecting plate 200 between multiple pile bodies 100. This connection structure is simple and can achieve the engagement connection of the pile body 100 according to the structure of the connecting plate 200, which is convenient for installation.

[0035] Specifically, the protrusion 110 is sequentially connected with a fixing part 111 and a stop part 112 along the axial direction of the pile body 100. The fixing part 111 is connected to the slot 211, and the cross-sectional dimension of the stop part 112 is larger than the cross-sectional dimension of the slot 211. The fixing part 111 has a dovetail structure, and the slot 211 has a dovetail groove structure.

[0036] In this embodiment, the protrusion 110 is provided with a fixing part 111 and a stop part 112 in sequence along the vertical direction. During installation, the slot 211 is inserted into the fixing part 111 of the protrusion 110. The stop part 112 is located at the lower end of the fixing part 111, and the lateral dimension of the stop part 112 is larger than the lateral dimension of the slot 211. This effectively prevents the connecting plate 200 from falling off the fixing part 111 due to gravity or other factors when the slot 211 is inserted into the fixing part 111. The stop part 112 can effectively limit the connection of the connecting plate 200 in the vertical direction, improving the connection stability of multiple piles 100. The fixing part 111 has a dovetail structure, and the corresponding slot 211 has a dovetail groove structure. Through the dovetail-shaped interlocking structure, the connection strength and stability between the connecting plate 200 and the pile 100 are effectively improved, effectively preventing the pile 100 from separating from the connecting plate 200, and further improving the support for the foundation pit.

[0037] Furthermore, multiple protrusions 110 are evenly spaced along the axial direction of the pile body 100, and multiple connecting plates 200 are also evenly spaced along the axial direction of the pile body 100. To meet the requirements of deep foundation pits, multiple protrusions 110 can be evenly spaced along the axial direction of the pile body 100, and the same number of connecting plates 200 can be connected to improve the overall connection strength and uniformity. Moreover, the vertical distance between two adjacent protrusions 110 is greater than the width of the connecting plate 200, which facilitates the installation and disassembly of multiple connecting plates 200.

[0038] In the specific structure of the pile body 100, the pile body 100 is provided with a pile core 120, a steel pipe sleeve 130, a concrete interlayer 140 and a reinforcing cage 150 in sequence from the inside to the outside along its own radial direction, and the second connector is provided on the outside of the reinforcing cage 150. The steel pipe sleeve 130 is provided with a plurality of guide holes 160 penetrating the steel pipe sleeve 130 along its own radial direction.

[0039] In this embodiment, as Figure 1 , Figure 3 As shown, the pile body 100 is cylindrical, and from the inside to the outside along its radial direction, the pile body 100 is provided with a pile core 120, a steel pipe sleeve 130, a concrete interlayer 140, and a reinforcing cage 150. Multiple guide holes 160 are provided radially through the steel pipe sleeve 130. The guide holes 160 are also arranged along the axial direction of the steel pipe sleeve 130. During the pouring of the pile body 100, a cylindrical pile hole is first constructed using wooden templates, and wooden templates for forming protrusions 110 are overlapped on both sides of the overall template. Then, the reinforcing cage 150 is inserted into the pile hole, and a steel pipe sleeve 130 is inserted into the reinforcing cage 150. Concrete is then poured into the steel pipe sleeve 130 and into the wooden templates for forming protrusions 110. When concrete is poured into the steel pipe sleeve 130, it flows from the inside to the outside of the steel pipe sleeve 130 through the guide hole 160. Finally, during the solidification process, the outflowing concrete forms a concrete interlayer 140 between the reinforcing cage 150 and the steel pipe sleeve 130, and the concrete interlayer 140 and the reinforcing cage 150 are also poured together.

[0040] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A type of foundation pit support pile, comprising a plurality of piles continuously distributed around the sidewall of the foundation pit, characterized in that, It also includes a connecting plate, which is provided with a first connector and the pile is provided with a second connector. The first connector and the second connector are connected in cooperation, so that the connecting plate is connected between the plurality of piles along a first direction, and the first direction intersects the axial direction of the pile.

2. The foundation pit support pile according to claim 1, characterized in that, The first connector includes a plurality of protrusions on the connecting plate that protrude in a direction away from the pile body. The plurality of protrusions are evenly spaced along the first direction, and a recess is formed between two adjacent protrusions.

3. The foundation pit support pile according to claim 2, characterized in that, The second connector includes a protrusion extending axially along the pile body. The protrusion has a groove on its end face near the pile body, and the protrusion engages with the groove.

4. The foundation pit support pile according to claim 3, characterized in that, The protrusion is connected in sequence with a fixing part and a stop part along the axial direction of the pile body. The fixing part is connected to the slot, and the cross-sectional dimension of the stop part is larger than the cross-sectional dimension of the slot.

5. The foundation pit support pile according to claim 4, characterized in that, The fixing part has a dovetail-shaped structure, and the slot has a dovetail groove structure.

6. A foundation pit support pile according to any one of claims 3-5, characterized in that, The protrusions are evenly spaced along the axial direction of the pile body, and the connecting plate body is provided with multiple protrusions along the axial direction of the pile body.

7. The foundation pit support pile according to claim 1, characterized in that, The connecting plate body includes multiple connecting sub-plates. The connecting sub-plates are provided with a first end and a second end along the first direction. The first end is provided with a first connecting part, and the second end is provided with a second connecting part. The first connecting part and the second connecting part of two adjacent connecting sub-plates are connected together.

8. The foundation pit support pile according to claim 7, characterized in that, The first connecting part is provided with a mounting block extending along the axial direction of the pile body, and the second connecting part is provided with a mounting groove extending along the axial direction of the pile body, and the mounting block is inserted into the mounting groove.

9. The foundation pit support pile according to claim 1, characterized in that, The pile body is provided with a pile core, a steel pipe sleeve, a concrete interlayer and a reinforcing cage in sequence from the inside to the outside along its own radial direction, and the second connector is located on the outside of the reinforcing cage.

10. A foundation pit support pile according to claim 9, characterized in that, The steel pipe sleeve is provided with multiple guide holes penetrating the steel pipe sleeve along its own radial direction.

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