PC (Poly Carbonate) construction method pile enclosure structure for soft soil stratum

Abstract

The utility model discloses a PC construction method pile enclosure structure for soft soil stratums, which comprises a hollow pile, connecting plates are fixedly connected to two side surfaces of the hollow pile, one end of each connecting plate is fixedly connected with an insertion rod, a hollow cavity is arranged in the insertion rod, sealing strips are fixedly connected to two sides of the outer surface of the insertion rod, and the sealing strips are fixedly connected to the outer surface of the insertion rod. Supporting blocks are fixedly connected to the two sides of the interior of the hollow cavity, an elastic notch is formed in the surface of one end of the inserting-connecting rod, arc-shaped transition faces are arranged on the two sides of the elastic notch, a square positioning cylinder is connected to the outer surface of the inserting-connecting rod in a combined mode, and a circular opening groove is formed in the square positioning cylinder; and an opening in one end of the circular opening groove is clamped to the outer surface of the connecting plate, an enclosure plate is fixedly connected to the surface of one side of the square positioning cylinder, elastic clamping and positioning are facilitated, mutual combination is combined with the enclosure plate, interval splicing and assembling can be achieved, high efficiency and stability are achieved, and foundation pit enclosure is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of foundation pits, and more specifically, to a PC method pile retaining structure for soft soil strata. Background Technology

[0002] A foundation composed of soft soil is called a soft soil foundation, which is widely distributed in the coastal areas of southern my country as well as in inland river and lake areas. The most commonly used retaining structures for foundation pits on soft soil foundations are diaphragm walls or pile walls plus concrete mixing piles that form a ring around the perimeter of the foundation pit. The pile walls are a ring or a row of reinforced concrete piles that form a ring around the perimeter of the foundation pit to retain soil, while the cement-soil mixing piles are generally interlocked between adjacent piles to retain water; there are also cases where a ring or a row of reinforced concrete piles is used to retain soil and water.

[0003] Application CN115627779A discloses a foundation pit retaining structure and its construction method for soft soil foundations. The structure includes multiple first and second steel piles spaced around the perimeter of the foundation pit and inserted into the soft soil foundation. A horizontal longitudinal connecting beam is detachably connected to the top of adjacent first steel piles. Each end of the horizontal longitudinal connecting beam has a steel bracket fixed to the side wall of its respective first steel pile. The bottom of the horizontal longitudinal connecting beam is detachably connected to the top of two inclined steel connecting columns, with the bottom of each inclined steel connecting column abutting against its respective steel bracket. A waler and a retaining wall composed of corrugated metal plates inserted into the soft soil are detachably connected to adjacent second steel piles. A rigid connection structure consisting of multiple steel strands anchored and connected steel pipes is formed between each pair of rows of steel piles. This invention features good overall integrity between the inner and outer rows of piles, strong bearing capacity, good safety performance, relatively small engineering workload, and relatively low construction cost.

[0004] The aforementioned disclosed structure lacks separate hollow piles and retaining panels for installation, making it impossible to connect and position them to form a maintenance structure. This results in poor adaptability. Furthermore, it lacks plug-in rods with elastic notches, which prevent elastic locking and positioning after connection, leading to insufficient stability. These issues require improvement. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a PC method pile retaining structure for soft soil layers. The structure uses a connecting plate on the side of the hollow pile to connect the plug rod and has an elastic notch, which can be plugged into and positioned with a square positioning cylinder for separate installation. This facilitates elastic snap-fit ​​positioning. Combined with retaining panels, the structure can be spliced ​​and assembled at intervals, which is efficient and stable and beneficial for retaining the foundation pit.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A PC (polycarbonate) pile retaining structure for soft soil strata includes hollow piles. Connecting plates are fixedly connected to both sides of the hollow piles. A plug-in rod is fixedly connected to one end of each connecting plate. The plug-in rod has a hollow cavity inside. Sealing strips are fixedly connected to both sides of the outer surface of the plug-in rod. Support blocks are fixedly connected to both sides of the inner surface of the hollow cavity. An elastic notch is provided on one end of the plug-in rod, and arc-shaped transition surfaces are provided on both sides of the elastic notch. A square positioning cylinder is assembled and connected to the outer surface of the plug-in rod. A circular opening groove is provided inside the square positioning cylinder. One end of the circular opening groove is engaged with the outer surface of the connecting plate. A retaining plate is fixedly connected to one side of the square positioning cylinder. A right-angled combination strip is fixedly connected to one end of the retaining plate, and a locking groove is provided on one side of the right-angled combination strip.

[0008] Furthermore, a U-shaped positioning plate is slidably engaged on the surface of the right-angle combination strip, and the U-shaped positioning plate is located on one side of the enclosure panel.

[0009] Furthermore, a combination plate is fixedly connected to one end of the U-shaped positioning plate, and the combination plate is inserted into the inside of the snap-fit ​​groove.

[0010] Furthermore, a clamping head is fixedly connected to one side surface of the combined panel. The clamping head is clamped to one side surface of the enclosure panel. The combined panel and the clamping head are connected by a U-shaped positioning plate. It can be snapped onto the right-angle combination strip and can be assembled separately. This allows the enclosure panels to be spliced ​​together and installed efficiently and stably, which is conducive to positioning and use.

[0011] Furthermore, the lengths of the connecting plate and the plug rod are consistent with the length of the hollow pile, and they are symmetrically distributed on both sides of the hollow pile.

[0012] Furthermore, the sealing strip is attached to both sides of the plug rod and is slidably installed on both sides inside the circular opening groove.

[0013] Furthermore, the retaining plate and the square positioning cylinder are aligned and installed on both sides of the hollow pile, and are installed in a spaced-out combination. Through the symmetrically distributed connecting plates and plug-in rods, they can be assembled from both sides, which is conducive to splicing them together to form a fence, thereby protecting the foundation pit. It is safe, stable, and highly adaptable.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) This scheme connects the plug rod through the connecting plate on the side of the hollow pile and sets an elastic notch, which can be plugged into the square positioning cylinder for positioning, so as to carry out separate installation, which is convenient for elastic snap-fit ​​positioning. Combined with the enclosure plate, they can be spliced ​​and assembled at intervals, which is efficient and stable and conducive to the enclosure of the foundation pit.

[0016] (2) The U-shaped positioning plate connects the combination plate and the top clamping head, which can be snapped onto the right-angle combination strip. It can be assembled and installed separately, so that the enclosure panels can be spliced ​​together and installed efficiently and stably, which is conducive to positioning and use.

[0017] (3) By symmetrically distributing connecting plates and plug-in rods, they can be assembled and installed from both sides, which is conducive to splicing them together to form a fence, thereby protecting the foundation pit. It is safe, stable, and highly adaptable. Attached Figure Description

[0018] Figure 1 This is a partial structural schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the planar structure of the present invention;

[0020] Figure 3 This is a partial structural diagram of the plug rod of this utility model;

[0021] Figure 4 This is a partial structural diagram of the connection between the plug rod and the enclosure panel of this utility model;

[0022] Figure 5 This is a structural diagram of the combination of the enclosure panel and the U-shaped positioning plate of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1 Hollow pile, 11 Connecting plate, 12 Insert rod, 13 Hollow cavity, 14 Sealing strip, 15 Support block, 16 Elastic notch, 17 Arc transition surface, 2 Square positioning cylinder, 21 Circular opening groove, 22 Enclosure plate, 23 Right angle combination strip, 24 Snap-fit ​​groove, 25 U-shaped positioning plate, 26 Combination plate, 27 Tightening head. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 , Figure 3 and Figure 4A PC (polycarbonate) pile retaining structure for soft soil strata includes hollow piles 1. Connecting plates 11 are fixedly connected to both sides of the hollow piles 1. A plug-in rod 12 is fixedly connected to one end of each connecting plate 11. This allows for separate plug-in installation, facilitating vertical insertion directly at the edge of the foundation pit in soft soil, simplifying installation and positioning, and enabling combined use. The plug-in rod 12 has a hollow cavity 13 inside. Sealing strips 14 are fixedly connected to both sides of the outer surface of the plug-in rod 12, allowing for tight positioning and ensuring a sealed connection, reducing leakage, and ensuring safety and stability. Support blocks 15 are fixedly connected to both sides of the hollow cavity 13. One end of the plug-in rod 12 has an elastic notch 16, with arc-shaped transition surfaces 17 on both sides of the elastic notch 16, allowing for clearance and thus securing the plug-in rod. The 12 is elastically extended and can be stably snapped into the circular opening groove 21, thus combining with the square positioning cylinder 2 for positioning. This facilitates the combination and positioning of the hollow pile 1 and the retaining plate 22, allowing them to be snapped together for separate installation, thereby forming a retaining structure. This is beneficial for protecting the edge of the foundation pit, improving construction safety, and can be directly hammered into the soft soil foundation by mechanical equipment, making construction convenient and easy to install and use. The outer surface of the plug rod 12 is combined with the square positioning cylinder 2, and the inside of the square positioning cylinder 2 is provided with a circular opening groove 21. One end of the circular opening groove 21 is snapped into the outer surface of the connecting plate 11. One side surface of the square positioning cylinder 2 is fixedly connected to the retaining plate 22, and one end of the retaining plate 22 is fixedly connected to a right-angle combination strip 23. One side of the right-angle combination strip 23 is provided with a snap-fit ​​groove 24.

[0027] Please see Figure 2 and Figure 5 A U-shaped positioning plate 25 is slidably snapped onto the surface of the right-angle combination strip 23. The U-shaped positioning plate 25 is located on one side of the enclosure panel 22. A combination plate 26 is fixedly connected to one end of the U-shaped positioning plate 25. The combination plate 26 is inserted into the inside of the snap-fit ​​groove 24. A tightening head 27 is fixedly connected to one side surface of the combination plate 26. The tightening head 27 is tightened and connected to one side surface of the enclosure panel 22. The combination plate and the tightening head are connected by the U-shaped positioning plate, which can be snapped onto the right-angle combination strip. It can be assembled and installed separately, so that the enclosure panels can be spliced ​​together and installed. It is efficient, stable and convenient for positioning.

[0028] Please see Figure 1 and Figure 2 The lengths of the connecting plate 11 and the plug rod 12 are consistent with the length of the hollow pile 1, and they are symmetrically distributed on both sides of the hollow pile 1. The sealing strip 14 is attached to both sides of the plug rod 12 and is slidably installed on both sides of the inside of the circular opening slot 21. The enclosure plate 22 and the square positioning cylinder 2 are aligned and installed on both sides of the hollow pile 1, and are installed in a spaced-out combination. By symmetrically distributing the connecting plate and the plug rod, they can be assembled from both sides, which is conducive to splicing them together to form a enclosure, thereby protecting the foundation pit. It is safe, stable, and highly adaptable.

[0029] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A PC (polycarbonate) pile retaining structure for soft soil layers, comprising hollow piles (1), wherein connecting plates (11) are fixedly connected to both sides of the hollow piles (1), and a plug-in rod (12) is fixedly connected to one end of the connecting plates (11), characterized in that: The plug rod (12) has a hollow cavity (13) inside. Sealing strips (14) are fixedly connected to both sides of the outer surface of the plug rod (12). Support blocks (15) are fixedly connected to both sides of the inner cavity (13). An elastic notch (16) is provided on one end surface of the plug rod (12). Arc-shaped transition surfaces (17) are provided on both sides of the elastic notch (16). A square positioning cylinder (2) is combined and connected to the outer surface of the plug rod (12). A circular opening groove (21) is provided inside the square positioning cylinder (2). One end of the circular opening groove (21) is snapped onto the outer surface of the connecting plate (11). A protective plate (22) is fixedly connected to one side surface of the square positioning cylinder (2). A right-angle combination strip (23) is fixedly connected to one end of the protective plate (22). A snap-fit ​​groove (24) is provided on one side of the right-angle combination strip (23).

2. The PC pile retaining structure for soft soil layers according to claim 1, characterized in that: The surface of the right-angle combination strip (23) is slidably engaged with a U-shaped positioning plate (25), which is located on one side of the enclosure panel (22).

3. A PC pile retaining structure for soft soil strata according to claim 2, characterized in that: One end of the U-shaped positioning plate (25) is fixedly connected to a combination plate (26), which is inserted into the inside of the snap-fit ​​groove (24).

4. A PC pile retaining structure for soft soil strata according to claim 3, characterized in that: A clamping head (27) is fixedly connected to one side surface of the combined plate (26), and the clamping head (27) is clamped to one side surface of the enclosure plate (22).

5. A PC pile retaining structure for soft soil strata according to claim 1, characterized in that: The lengths of the connecting plate (11) and the plug rod (12) are the same as the length of the hollow pile (1) and are symmetrically distributed on both sides of the hollow pile (1).

6. A PC pile retaining structure for soft soil layers according to claim 1, characterized in that: The sealing strip (14) is attached to both sides of the plug rod (12) and is slidably installed on both sides inside the circular opening groove (21).

7. A PC pile retaining structure for soft soil strata according to claim 1, characterized in that: The enclosure panel (22) and the square positioning cylinder (2) are installed on both sides of the hollow pile (1) and are installed in a spaced-out combination.

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