Prefabricated supporting pile, inserting plate and simply supported beam supporting combined pile

Abstract

The utility model discloses a prefabricated supporting pile, an inserting plate and a simply supported beam supporting combined pile, and belongs to the technical field of supporting engineering, the prefabricated supporting pile comprises the prefabricated supporting pile, the prefabricated supporting pile comprises a first stress part, a second stress part and a connecting part, the connecting part is connected with the first stress part and the second stress part, and the inserting plate and the simply supported beam supporting combined pile are connected through the connecting part. The first stress part extends upwards to form a first convex part, the second stress part extends upwards to form a second convex part, and the first convex part, the second convex part and the connecting part are encircled to form the first through groove; and at least one pair of the insertion plates are mounted in the first through grooves. According to the simply supported beam supporting combined pile, a relatively flat base plane and a large operation space are provided for laying of waterproof materials at the connecting position, and laying is convenient; and the prefabricated supporting piles are matched with the top beam to form a simply supported beam structure, so that the stability of the simply supported beam supporting combined pile is improved, the whole-line laying operation of a traditional top beam is avoided, and materials are saved.

Description

Technical Field

[0001] This utility model relates to the field of support engineering technology, and in particular to a precast support pile, insert plate and simply supported beam combined pile. Background Technology

[0002] Precast retaining piles are commonly used in various retaining structures to maintain soil stability, prevent soil deformation and collapse, and provide waterproofing. They also bear the vertical and horizontal loads transferred from the superstructure. Precast retaining piles are often used in conjunction with sheet metal inserts, which not only reduces costs but also further strengthens the retaining structure, protects the soil between piles, and improves the waterproofing system.

[0003] Currently, precast support piles and insert plates are often installed using mortise and tenon joints or other methods. Due to factors such as construction techniques, production processes, and material shrinkage, gaps or holes can easily form at the connection points, causing drainage to carry away soil behind the piles. Therefore, waterproofing material needs to be laid at the connection points. However, due to limited construction space and complex joints, laying waterproofing material at mortise and tenon joints is quite difficult. The high requirements for the structural processing of the connection points between precast support piles and insert plates also lead to high manufacturing costs. Furthermore, controlling the verticality and flatness of the insert plates during construction is currently difficult, resulting in poor forming, excessively large gaps at the connection points, and an inability to control soil erosion. Utility Model Content

[0004] This utility model aims to overcome the problems of easy soil leakage at the connection between precast support piles and insert plates and the high difficulty in installing waterproof materials in the prior art, and provides a combination pile of precast support piles, insert plates and simply supported beams.

[0005] To achieve the above objectives, the present invention provides a precast support pile, comprising a first force-bearing part, a second force-bearing part, and a connecting part. The connecting part connects the first force-bearing part and the second force-bearing part. The first force-bearing part extends upward to form a first protrusion, and the second force-bearing part extends upward to form a second protrusion. The first protrusion, the second protrusion, and the connecting part together form a first through groove.

[0006] In one embodiment, at least two connecting portions are included, which are respectively connected to the first force-receiving portion and the second force-receiving portion, and the connecting portions together with the first force-receiving portion and the second force-receiving portion form a central cavity.

[0007] In one embodiment, the length of the first through groove is less than or equal to half the length of the first force-bearing part, and the length of the first through groove is less than or equal to half the length of the second force-bearing part.

[0008] In one embodiment, a bottom is connected below the first force-receiving part, the second force-receiving part, and the connecting part.

[0009] In one embodiment, the bottom end is provided with a pile tip.

[0010] In one embodiment, the first force-receiving portion extends downward to form a first bottom, the second force-receiving portion extends downward to form a second bottom, and there is a gap between the first bottom and the second bottom.

[0011] In one embodiment, the first force-receiving part extends downward to form a first bottom, the second force-receiving part extends downward to form a second bottom, and the first bottom and the second bottom are connected to form a whole.

[0012] In one embodiment, the first force-receiving portion extends downward to form a first bottom, and the second force-receiving portion extends downward to form a second bottom, wherein the lengths of the first bottom and the second bottom are not equal.

[0013] In one embodiment, the precast support pile is provided with a steel cage inside, the steel cage including main bars and stirrups, the main bars are arranged in the first stress-bearing part and the second stress-bearing part, and the stirrups are horizontally sleeved on the main bars to form a closed structure.

[0014] In one embodiment, the connecting portion is provided with the stirrup, and the stirrup in the connecting portion is connected to the main reinforcement in the first force-bearing portion and the second force-bearing portion.

[0015] In one embodiment, the first force-bearing part and the second force-bearing part are respectively provided with main reinforcement and stirrups, and the stirrups are connected to the main reinforcement to form a whole; the connection between the stirrups and the main reinforcement is provided with hook reinforcement; the connection part is provided with the stirrups, and the stirrups connect the two wholes.

[0016] In one embodiment, the cavity is circular.

[0017] In one embodiment, fixed steel plates are provided at both ends of the precast support pile, and the fixed steel plates have the same shape as the end face of the precast support pile.

[0018] This utility model also provides an insert plate, which is used in connection with the precast support pile as described above, and the side end of the insert plate is installed in the first through groove of the precast support pile.

[0019] In one embodiment, the insert plate has at least one through hole axially.

[0020] In one embodiment, the side end of the insert plate protrudes outward to form a mounting portion, which is installed in the first through groove.

[0021] In one embodiment, the mounting part is connected to an elbow.

[0022] In one embodiment, first slots are provided on both sides of the top of the insert plate.

[0023] This utility model also provides a simply supported beam support composite pile, including the precast support pile as described above, and a insert plate, wherein the insert plate connects adjacent precast support piles, and the side end of the insert plate is installed in the first through groove of the precast support pile.

[0024] In one embodiment, the insert plate is fitted into the first through slot either end-to-end or staggered.

[0025] In one embodiment, at least two pairs of insert plates are installed in the first through groove, and the insert plates on the same side enclose an ecological space.

[0026] In one embodiment, the simply supported beam composite pile further includes a capping beam, which is installed at the top of the precast support pile and the insert plate.

[0027] In one embodiment, a groove is provided in the middle of the crown beam, the groove being used to accommodate the first protrusion, the second protrusion, and the top of the insert plate.

[0028] In one embodiment, a second slot is provided on the side wall of the crown beam, and the second slot engages with the first slots provided on both sides of the top of the insert plate.

[0029] In summary, this utility model provides a precast support pile, insert plate, and simply supported beam combined pile. The precast support pile has a first through groove at its end, within which at least one pair of insert plates are installed. This design provides a relatively flat base surface and a larger operating space for laying waterproof material at the connection point, making the laying operation more convenient. Simultaneously, it prevents soil particles from leaking from the connection between the precast support pile and the insert plate, ensuring the structure's anti-soil leakage performance. Furthermore, the precast support pile, together with the capping beam, forms a simply supported beam structure, improving the stability and load-bearing capacity of the simply supported beam combined pile. The capping beam only needs to be installed at the connection between the insert plate and the precast support pile for local fixation, avoiding the traditional full-line laying operation of the capping beam, achieving material savings and reduced workload, and achieving a low-carbon and environmentally friendly effect.

[0030] To make the above-mentioned features and advantages of the utility model more apparent and understandable, specific embodiments are described below, and detailed descriptions are provided in conjunction with the accompanying drawings. Attached Figure Description

[0031] Figure 1 This is a first schematic diagram of the precast support pile in Embodiment 1 of this utility model.

[0032] Figure 2 This is a second schematic diagram of the precast support pile in Embodiment 1 of this utility model.

[0033] Figure 3 This is a first top view of the precast support pile in Embodiment 1 of this utility model.

[0034] Figure 4 This is a second top view of the precast support pile in Embodiment 1 of this utility model.

[0035] Figure 5 This is the third top view of the precast support pile in Embodiment 1 of this utility model.

[0036] Figure 6 for Figure 1 A sectional view.

[0037] Figure 7 for Figure 2 A schematic diagram of a steel cage.

[0038] Figure 8 for Figure 2 A schematic diagram of another type of steel cage.

[0039] Figure 9 This is the first assembly drawing of the prefabricated support piles and insert plates in Embodiment 1 of this utility model.

[0040] Figure 10 This is the second assembly drawing of the prefabricated support piles and insert plates in Embodiment 1 of this utility model.

[0041] Figure 11 This is the third assembly drawing of the prefabricated support piles and insert plates in Embodiment 1 of this utility model.

[0042] Figure 12 This is the fourth assembly drawing of the prefabricated support piles and insert plates in Embodiment 1 of this utility model.

[0043] Figure 13 This is a five-part assembly drawing of the prefabricated support piles and insert plates in Embodiment 1 of this utility model.

[0044] Figure 14 This is a schematic diagram of the precast support pile in Embodiment 2 of this utility model.

[0045] Figure 15 This is a first schematic diagram of the precast support pile in Embodiment 3 of this utility model.

[0046] Figure 16 This is a second schematic diagram of the precast support pile in Embodiment 3 of this utility model.

[0047] Figure 17 This is a third schematic diagram of the precast support pile in Embodiment 3 of this utility model.

[0048] Figure 18This is a schematic diagram of the precast support pile in Embodiment 4 of this utility model.

[0049] Figure 19 This is a first schematic diagram of the precast support pile in Embodiment 5 of this utility model.

[0050] Figure 20 This is a second schematic diagram of the precast support pile in Embodiment 5 of this utility model.

[0051] Figure 21 This is a schematic diagram of the crown beam in Embodiment Six of this utility model.

[0052] Figure 22 This is an assembly drawing of the prefabricated support piles, insert plates, and cap beam in Embodiment Six of this utility model.

[0053] Figure label:

[0054] Precast support pile-1;

[0055] Ontology-11;

[0056] First force-bearing part - 111; Second force-bearing part - 112; Connecting part - 113; Bottom - 114;

[0057] The first convex part-1111; the second convex part-1121; the first bottom part-1141; the second bottom part-1142;

[0058] Through slot-12;

[0059] First through slot - 121; Second through slot - 122;

[0060] Reinforcing cage-13;

[0061] Main reinforcement - 131; Stirrups - 132; Hook reinforcement - 133;

[0062] Concrete 14;

[0063] Insert-2;

[0064] 21. Through hole; 22. Ecological space; 23. Rectangular plate; 24. U-shaped plate; 25. First slot; 26. Mounting part; 3. Crown beam;

[0065] Groove-31; Second slot-32. Detailed Implementation

[0066] To make the objectives and technical solutions of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0067] Example 1

[0068] Currently, the installation of precast support piles and sheet piles presents challenges, including difficulties in installing waterproofing materials and soil leakage at the pile-slab connection. Furthermore, the use of full-shoreline capping beams leads to material waste and high costs. To provide more installation space for waterproofing materials, prevent soil seepage at the sheet pile connection, and avoid full-shoreline capping beams, this invention provides a simply supported beam composite pile, comprising a sheet pile 2 and a precast support pile 1, with the sheet pile 2 connecting adjacent precast support piles 1.

[0069] Figure 1 This is a schematic diagram of the precast support piles in this utility model, as shown below. Figure 1 As shown, the precast support pile 1 includes a body 11 and at least one through groove 12, the through groove 12 being disposed through the end of the body 11 along the width direction.

[0070] The body 11 includes a first force-bearing part 111, a second force-bearing part 112, and at least one connecting part 113, wherein the connecting part 113 connects the first force-bearing part 111 and the second force-bearing part 112. The first force-bearing part 111, the second force-bearing part 112, and the connecting part 113 can be integrally formed or assembled from components. If the body 11 is integrally formed, a casting method can be used, but is not limited to; if the body 11 is assembled, a connection method can be used, but is not limited to, bolt connection, etc., for fixation. Figure 2 As shown, when at least two connecting portions 113 are provided, the connecting portions 113 respectively connect the first force-bearing portion 111 and the second force-bearing portion 112, and there is a gap between the connecting portions 113. Grooves may also be provided on the opposing surfaces of the first force-bearing portion 111 and the second force-bearing portion 112, and on the opposing surfaces of the two connecting portions 113. The grooves enclose a central cavity, which may be circular. Furthermore, fixing steel plates may be provided at the upper and lower ends of the precast support pile 1. The fixing steel plates conform to the shape of the precast support pile 1, and the fixing steel plates can prevent the pile head from cracking during construction.

[0071] The inner surfaces of the first force-bearing part 111 and the second force-bearing part 112 are directly connected to both sides of the connecting part 113, and the outer surfaces of the first force-bearing part 111 and the second force-bearing part 112 are the surfaces on which horizontal loads are applied. The horizontal load may include soil pressure, water pressure, etc., and will vary depending on the installation scenario. The cross-sections of the first force-bearing part 111 and the second force-bearing part 112 can be square, circular, trapezoidal, or other polygonal or irregular shapes. Figure 3 As shown, the upper and lower dimensions of the first force-receiving part 111, the second force-receiving part 112, and the connecting part 113 are the same. For ease of demolding, as... Figure 4 As shown, the upper and lower sides of the connecting portion 113 may have different dimensions. Preferably, the upper and lower sides of the first force-bearing portion 111 and the second force-bearing portion 112 are also of unequal length (see...). Figure 5 ).

[0072] The connecting part 113 can transmit the horizontal force borne by the first force-bearing part 111 and the second force-bearing part 112. The connecting part 113 can not only work with the first force-bearing part 111 and the second force-bearing part 112 to resist the horizontal load and avoid damage to the precast support pile, but also transmit internal forces in a timely manner to improve the bending resistance of the pile.

[0073] like Figure 6 As shown, when only one connecting part 113 is provided, the first load-bearing part 111, the second load-bearing part 112, and the connecting part 113 are filled with concrete 14 and a reinforcing cage 13. The reinforcing cage 13 includes several main bars 131 and several stirrups 132, and the stirrups 132 are fixedly connected to the main bars 131. The main bars 131 are respectively arranged in the first load-bearing part 111 and the second load-bearing part 112, and the stirrups 132 are horizontally sleeved on the two sets of main bars 131, so that the two are connected to form a closed structure. The stirrups 132 are provided in the connecting part 113, and the stirrups 132 in the connecting part 113 are connected to the main bars 131 in the first load-bearing part 111 and the second load-bearing part 112. Depending on the actual situation, the main bars 131 can also be arranged in the connecting part 113. When two connecting parts 113 are provided, such as Figure 7 and Figure 8 As shown, Figure 7 and Figure 8 This is a schematic diagram of the two types of steel cages 13. Figure 7 In the case where a through slot 12 is formed on the body 11, Figure 8In the case where two through slots 12 are formed on the main body 11, stirrups 132 and main reinforcement bars 131 are provided in the connecting part 113, the first force-bearing part 111, and the second force-bearing part 112. The stirrups 132 in the first force-bearing part 111 and the second force-bearing part 112 are respectively connected to the main reinforcement bars 131 to form an integral unit. The stirrups 132 in the connecting part 113 are sleeved on the two integral units. The stirrups 132 are arranged around the main reinforcement bars 131, and the stirrups 132 form a continuous strip around the main reinforcement bars 131. The reinforcing cage 13 also includes hook bars 133, which connect the main reinforcement bars 131 and the stirrups 132. The reinforcing cage 13 is arranged according to the number and shape of the through slots 12 of the precast support pile 1 to ensure that the bearing capacity of the precast support pile 1 is improved.

[0074] Combination Figures 1 to 8 The first force-receiving part 111 extends upward to form a first protrusion 1111, and the second force-receiving part 112 extends upward to form a second protrusion 1121. The length of the first protrusion 1111 is equal to the length of the second protrusion 1121. The first protrusion 1111 and the second protrusion 1121 can be square prism-shaped, cylindrical, or other shapes depending on the actual situation. The first protrusion 1111, the second protrusion 1121, and the connecting part 113 together form the first through groove 121. The length of the first through groove 121 is less than or equal to half the length of the first force-receiving part 111 and half the length of the second force-receiving part 112. The first through groove 121 can be a rectangular groove, a circular groove, an octagonal groove, or other shapes depending on the actual situation. The first through groove 121 is used to install the insert plate. The first protrusion 1111, the connecting part 113 and the second protrusion 1121 have relatively regular shapes, and the first through groove 121 has a large space, which provides a relatively flat base surface and a large operating space for the laying of waterproof material, making the laying operation more convenient.

[0075] A bottom 114 is connected below the first force-bearing part 111, the second force-bearing part 112, and the connecting part 113. The first force-bearing part 111 extends downward to form a first bottom 1141, and the second force-bearing part 112 extends downward to form a second bottom 1142. There is a gap between the lengths of the first bottom 1141 and the second bottom 1142, and the lengths of the first bottom 1141 and the second bottom 1142 are equal. The end of the bottom 114 is provided with a pile tip, wherein the bottom ends of both the first bottom 1141 and the second bottom 1142 can be provided with a conical pile tip to concentrate the transmission of pile end load and facilitate the guidance of the pile body to cut into the soil layer during pile driving. The first bottom 1141, the second bottom 1142 and the connecting part 113 together form a second through groove 122. After the precast support pile 1 is installed, a certain amount of soil will be filled into the second through groove 122 to increase the friction and interlocking force between the precast support pile 1 and the soil, thereby improving the pull-out resistance and horizontal displacement resistance of the precast support pile 1.

[0076] like Figure 9 As shown, the insert plate 2 can have at least one through hole axially to save material and weight. The side end of the insert plate 2 is installed in the first through groove 121. Further, the side end of the insert plate 2 protrudes outward to form a mounting portion 26, which is installed in the first through groove 121. Further, the mounting portion 26 can be connected with an elbow, which can further enhance connection stability. The insert plate 2 can be fixed to the precast support pile 1 using, but is not limited to, mortise and tenon joints or grouting. The insert plate 2 can be a rectangular plate, an arc-shaped plate, a U-shaped plate, or other shapes can be selected according to actual conditions.

[0077] In one embodiment, when the two connecting portions 113 and the first force-bearing portion 111 and the second force-bearing portion 112 together form a central cavity, at least one pair of insert plates 2 have their side ends installed in the first through groove 121, and the insert plates 2 do not directly contact the connecting portions 113. In this case, concrete can be poured into the central cavity to prevent soil particle leakage at the installation points of the insert plates 2 and the first through groove 121.

[0078] In another preferred embodiment, such as Figure 10 and Figure 11 As shown, at least one pair of insert plates 2 can be installed in the first through groove 121 with their side ends abutting against each other, and the insert plates 2 and the precast support piles 1 are in direct contact. The insert plates 2 form a continuous sheet pile structure, which ensures the soil leakage prevention performance of the structure and effectively improves the lateral resistance of the simply supported beam support composite pile. Moreover, the modular installation method not only simplifies the installation and disassembly of the insert plates 2, but also facilitates the accurate planning and laying of waterproof materials.

[0079] Furthermore, at least two pairs of the insert plates 2 can be installed in the first channel 121 to form an ecological space 22, such as... Figure 12 As shown, the insert plate 2 may include a pair of rectangular plates 23 and a pair of U-shaped plates 24. The rectangular plates 23 abut against each other, and the U-shaped plates 24 abut against each other. The rectangular plates 23 and U-shaped plates 24 between adjacent precast support piles 1 form an ecological space 22. The ecological space 22 not only has good ecological functions, meeting the habitat needs of different species and providing space for plant growth, but also buffers the impact of water flow, improving the protective performance of the simply supported beam support composite pile. In addition, the insert plate 2 has through holes 21, which facilitate the drainage of water and air in the soil, avoiding the accumulation of pore water pressure and air pocket effect, and helping to maintain the stability of the insert plate 2 and the surrounding soil; it allows soil particles to partially enter the through holes 21, forming a soil-plate interlocking structure, enhancing the friction and embedding effect between the insert plate 2 and the soil; and it reduces the material usage of the insert plate 2, reducing its weight and facilitating transportation and installation. The insert plate 2 may also be decorated with patterns to improve its aesthetics.

[0080] In another implementation, such as Figure 13 As shown, at least one pair of insert plates 2 are staggered and embedded in the first through groove 121. This installation method provides strong constraint for the insert plates 2, making the connection between the insert plates 2 and the precast support piles 1 more stable. Furthermore, the tight connection between the insert plates 2 and the precast support piles 1 ensures the structure's soil-proof performance.

[0081] The simply supported beam composite pile has good structural rigidity and mechanical properties, and can coordinate deformation relatively uniformly, avoiding tearing and damage of waterproof materials under uneven stress, thus ensuring the durability of the waterproof effect.

[0082] Example 2

[0083] In actual engineering projects, if the forces on both sides of the precast support pile 1 are different, such as Figure 14 As shown, the lengths of the first protrusion 1111 and the second protrusion 1121 may also be unequal. For example, if the soil on both sides is loose backfill and undisturbed soil respectively, the longer second protrusion 1121 is used to resist the greater pressure on the backfill side, while the shorter first protrusion 1111 is used to meet the smaller pressure requirements on the undisturbed soil side. This not only saves material usage but also makes full use of the mechanical properties of the precast support pile 1, thus improving structural efficiency.

[0084] Example 3

[0085] Similarly, as Figures 15 to 17As shown, the first bottom 1141 and the second bottom 1142 may also be of unequal length in order to avoid underground obstacles or existing structures during construction.

[0086] Example 4

[0087] In addition, such as Figure 18 As shown, the first bottom 1141 and the second bottom 1142 can also be connected into a whole, and the length of the first bottom 1141 and the length of the second bottom 1142 are equal so as to position the precast support pile 1, reduce the pile body displacement caused by the irregular shape of the bottom, and ensure the construction accuracy of the precast support pile 1 and the stability of the overall structure.

[0088] Example 5

[0089] The first bottom 1141 and the second bottom 1142 are connected to form a whole (see...). Figure 18 In the case of ), such as Figure 19 and Figure 20 As shown, the lengths of the first bottom 1141 and the second bottom 1142 may not be equal. The longitudinal section of the whole formed by connecting the first bottom 1141 and the second bottom 1142 can be trapezoidal, conical, or other shapes depending on the actual situation. When the lengths of the first bottom 1141 and the second bottom 1142 are not equal, the soil resistance during pile driving of the precast support pile 1 can be effectively reduced. The ends of the whole formed by connecting the first bottom 1141 and the second bottom 1142 can also be equipped with conical pile tips to facilitate easier soil penetration, improve construction efficiency, and reduce the power requirements and equipment wear of the pile driving equipment.

[0090] Example 6

[0091] To improve the structural stability of the simply supported beam-supported composite pile, such as Figure 21 and Figure 22As shown, first slots 25 can be opened on both sides of the top of the insert plate 2, and the first slots 25 are used to install the cap beam 3. The cap beam 3 is installed on the top of the precast support pile 1 and the insert plate 2. The cap beam 3 can be set in a U-shape, and a groove 31 is opened in the middle of the cap beam 3. The groove 31 is used to accommodate the top of the precast support pile 1 and the insert plate 2; a second slot 32 is opened on the side wall of the cap beam 3, and the second slot 32 engages with the first slot 25. The precast support pile 1 and the cap beam 3 form a simply supported beam structure, which improves the stability and bearing capacity of the simply supported beam support composite pile. Since the connection between the insert plate 2 and the precast support pile 1 is inside the precast support pile 1, the cap beam 3 only needs to be installed at the connection for local fixation, so that the insert plate 2 and the precast support pile 1 can form a stable whole, avoiding the traditional full-line laying operation of the cap beam and realizing material saving. Meanwhile, the capping beam 3 can be partially installed instead of on each of the precast support piles 1, saving materials and meeting the requirements of low carbon and environmental protection. Furthermore, the capping beam 3 is not essential. As in Embodiment 1, where there are two connecting parts 113, the central cavity can be grouted to improve the pile strength and impermeability.

[0092] In summary, this utility model provides a precast support pile, insert, and simply supported beam combined pile. The end of the precast support pile 1 is provided with the first through groove 121, and at least one pair of insert plates 2 are installed in the first through groove 121. This design provides a relatively flat base surface and a larger operating space for laying waterproof material at the connection, making the laying operation more convenient. At the same time, it also prevents soil particles from seeping from the connection between the precast support pile 1 and the insert plate 2, ensuring the structure's anti-soil leakage performance. In addition, the precast support pile 1, together with the capping beam 3, forms a simply supported beam structure, improving the stability and bearing capacity of the simply supported beam combined pile. Moreover, the capping beam 2 only needs to be installed at the connection between the insert plate 2 and the precast support pile 1 for local fixation, avoiding the traditional full-line laying operation of the capping beam, achieving material savings and reduced workload, and achieving a low-carbon and environmentally friendly effect.

[0093] Although the present invention has been disclosed above by way of embodiments, it is not intended to limit the present invention. Anyone skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A precast sheet pile, characterized in that, It includes a first force-receiving part, a second force-receiving part, and a connecting part. The connecting part connects the first force-receiving part and the second force-receiving part. The first force-receiving part extends upward to form a first protrusion, and the second force-receiving part extends upward to form a second protrusion. The first protrusion, the second protrusion, and the connecting part together form a first through groove.

2. A precast sheet pile according to claim 1, wherein It includes at least two connecting parts, which are respectively connected to the first force-receiving part and the second force-receiving part, and the connecting parts together with the first force-receiving part and the second force-receiving part form a central cavity.

3. A precast sheet pile as defined in claim 1, wherein The length of the first through groove is less than or equal to half the length of the first force-bearing part, and the length of the first through groove is less than or equal to half the length of the second force-bearing part.

4. A precast sheet pile as defined in claim 1, wherein A bottom is connected below the first force-receiving part, the second force-receiving part, and the connecting part.

5. A precast pile according to claim 4, wherein The bottom end is provided with a pile tip.

6. A precast pile according to claim 4, wherein The first force-receiving part extends downward to form a first bottom, and the second force-receiving part extends downward to form a second bottom, with a gap between the first bottom and the second bottom.

7. A precast pile according to claim 4, wherein The first force-receiving part extends downward to form a first bottom, and the second force-receiving part extends downward to form a second bottom. The first bottom and the second bottom are connected to form a whole.

8. A precast pile according to claim 7, wherein The lengths of the first bottom and the second bottom are not equal.

9. A precast sheet pile as defined in claim 1, wherein The precast support pile is equipped with a steel cage, which includes main bars and stirrups. The main bars are arranged in the first stress-bearing part and the second stress-bearing part, and the stirrups are horizontally sleeved on the main bars to form a closed structure.

10. A precast pile according to claim 9, wherein The connecting part is provided with the stirrup, and the stirrup in the connecting part is connected to the main reinforcement in the first force-bearing part and the second force-bearing part.

11. A precast pile as claimed in claim 2, wherein, The first and second stress-bearing parts are respectively provided with main reinforcement and stirrups, and the stirrups are connected to the main reinforcement to form a whole; the connection between the stirrups and the main reinforcement is provided with hook reinforcement; the connection part is provided with the stirrups, and the stirrups connect the two wholes.

12. A precast sheet pile as defined in claim 2, wherein The central cavity is circular.

13. A precast sheet pile as defined in claim 1, wherein The precast support pile is provided with fixing steel plates at both ends, and the fixing steel plates have the same shape as the end face of the precast support pile.

14. A plugboard characterized by, The insert plate is used in connection with the precast support pile as described in any one of claims 1-13, and the side end of the insert plate is installed in the first through groove of the precast support pile.

15. A plug-in panel as claimed in claim 14, characterized in that The insert plate has at least one through hole in the axial direction.

16. An insert as defined in claim 14, wherein, The side end of the insert plate protrudes outward to form a mounting part, which is installed in the first through groove.

17. A plug-in panel as claimed in claim 16, characterized in that The mounting section is connected to an elbow.

18. An insert as defined in claim 14, wherein, The top of the insert plate has first slots on both sides.

19. A simply supported beam supported composite pile characterized by, Includes a precast support pile as described in any one of claims 1-13, and a insert plate, the insert plate connecting adjacent precast support piles, the side end of the insert plate being installed in a first through groove of the precast support pile.

20. A simply supported beam supported composite pile as claimed in claim 19 wherein, The insert plates are fitted into the first through slot either end-to-end or staggered.

21. A simply supported beam supported composite pile as claimed in claim 19 wherein, At least two pairs of insert plates are installed in the first through groove, and the insert plates on the same side enclose an ecological space.

22. A simply supported beam supported composite pile as claimed in claim 19 wherein, The simply supported beam composite pile also includes a capping beam, which is installed at the top of the precast support pile and the insert plate.

23. A simply supported beam supported composite pile as claimed in claim 22 wherein, The crown beam has a groove in the middle, which is used to accommodate the first protrusion, the second protrusion and the top of the insert plate.

24. A simply supported beam supported composite pile as claimed in claim 23 wherein, The crown beam side wall is provided with a second slot, which is engaged with the first slots on both sides of the top end of the plugboard.

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