Special-shaped support occlusion water stop pile

Abstract

The utility model relates to a special-shaped support occlusion water stop pile which comprises at least one pile body, and non-prestressed tendons, prestressed tendons and stirrups are arranged in the pile body. The pile body comprises two flanges and a web plate connected between the two flanges, the thickness of the flanges is larger than that of the web plate, and the section of each flange is H-shaped; the two side faces of the web are of a symmetrical structure, and transition faces are arranged between the two side faces and the flanges. At least one longitudinally extending convex part is arranged on one side surface of each of the two flanges, a longitudinally extending concave part is arranged on one side surface, deviating from the convex part, of each flange, and the convex part is matched with the concave part; wherein the length and the width of the convex part are smaller than those of the concave part. By the adoption of the structure, the rigidity of the pile body can be effectively improved, the durability, shear resistance and bending resistance of the pile body are improved, and the overall performance of the pile body is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of supporting piles, and in particular relates to a special-shaped supporting interlocking water-stopping pile. Background Art

[0002] At present, the main materials used in foundation pit maintenance projects and slope stabilization projects include cast-in-place bored piles, steel sheet piles and precast concrete piles. Precast concrete pile support structures are common retaining structures for slope management or foundation pit protection. They are widely used due to their good anti-slip ability, flexible pile arrangement, convenient construction, safety and reliability.

[0003] However, the existing support interlocking water-stopping piles mostly use square piles in their structure. In engineering applications, the square piles cannot guarantee linearity in connection, and the durability and bending resistance of the pile bodies are relatively poor. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a special-shaped supporting interlocking water-stop pile, which can effectively improve the rigidity of the pile body, increase the durability, shear resistance and bending resistance of the pile body, and improve the overall performance of the pile body.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A special-shaped support interlocking water-stop pile, comprising at least one pile body, wherein non-prestressed tendons, prestressed tendons and stirrups are arranged inside the pile body;

[0007] The pile body comprises two flanges and a web connected between the two flanges, the thickness of the flange is greater than the thickness of the web, and the cross section thereof forms an H-shape;

[0008] The two side surfaces of the web are symmetrical structures, and transition surfaces are provided between the two side surfaces and the flanges;

[0009] One side of the two flanges is provided with at least one longitudinally extending convex portion, and one side of the flange facing away from the convex portion is provided with a longitudinally extending concave portion, and the convex portion is matched with the concave portion;

[0010] Wherein, the length and width of the convex portion are smaller than those of the concave portion.

[0011] In a preferred embodiment of the present invention, the transition surfaces between the two side surfaces of the web and the flange are configured to be either arc-shaped or bevel-shaped.

[0012] In a preferred embodiment of the present invention, the two side surfaces of the web are symmetrical structures, the two side surfaces are transition surfaces, the transition surfaces are arc surfaces, and the arc surfaces extend to the two side ends of the flange.

[0013] In a preferred embodiment of the utility model, on the pile body, the cross-sectional shape of the protrusion is any one of square, rectangular, trapezoidal, triangular, sawtooth, and arc, and the concave portion is matched with the protrusion.

[0014] In a preferred embodiment of the present invention, arc-shaped flanges protruding outwards are provided on the outer end surfaces of the two flanges.

[0015] In a preferred embodiment of the present invention, a through groove is provided in the middle of the pile body, the cross-sectional shape of the through groove is circular or square, and the number of the through grooves is 1 or 2.

[0016] In a preferred embodiment of the present invention, the flange and the web are integrally cast by concrete, and a hanger bar is pre-embedded on one side of the flange.

[0017] Beneficial effects: The utility model is a special-shaped support interlocking water-stopping pile. A plurality of interlocking water-stopping piles are constructed at the same time. The two opposite sides of two adjacent pile bodies are respectively formed with a convex part and a concave part to form two interlocking side surfaces, so that the adjacent pile bodies are closely matched to form a supporting pile wall effect for foundation pit protection.

[0018] The utility model has a transition surface between the flange and the web, which increases the contact surface with the foundation pit, has strong anti-support force, and has more advantageous mechanical properties; at the same time, arc-shaped flanges protruding outward are arranged at the two outer ends of the flange, so that the lateral rigidity of the pile body is greater, a greater bearing capacity is obtained, and the endurance of the non-prestressed tendons, prestressed tendons and stirrups in the pile body is improved;

[0019] The special-shaped supporting interlocking water-stopping pile of the utility model adopts the above-mentioned structure, which can effectively improve the rigidity of the pile body, increase the durability, shear resistance and bending resistance of the pile body, and improve the overall performance of the pile body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of a special-shaped support bite water-stop pile (embodiment 1) provided by the utility model Figure 1 ;

[0021] Figure 2 A schematic diagram of the structure of a special-shaped support bite water-stop pile (embodiment 1) provided by the utility model Figure 2 ;

[0022] Figure 3 A structural schematic diagram of a special-shaped support interlocking water-stop pile (Example 2) provided by the utility model;

[0023] Figure 4 A structural schematic diagram of a special-shaped support interlocking water-stop pile (Example 3) provided by the utility model;

[0024] Figure 5A structural schematic diagram of a special-shaped support interlocking water-stop pile (Example 4) provided by the utility model;

[0025] Figure 6 A partial structural schematic diagram of a special-shaped support interlocking water-stop pile provided by the utility model;

[0026] Figure 7 A partial structural schematic diagram of a special-shaped support interlocking water-stop pile provided by the utility model;

[0027] Figure 8 A partial structural schematic diagram of a special-shaped supporting interlocking water-stop pile provided by the utility model.

[0028] In the figure: 1 flange, 11 convex part, 12 concave part, 13 arc-shaped flange;

[0029] 2 belly plate;

[0030] 3 transition surface. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Embodiment 1:

[0033] like Figure 1 As shown, the utility model provides a special-shaped support interlocking water-stop pile, comprising at least one pile body, wherein non-prestressed tendons, prestressed tendons and stirrups are arranged inside the pile body;

[0034] The pile body includes two flanges 1 and a web 2 connected between the two flanges 1. The thickness of the flange 1 is greater than that of the web 2, and its cross section forms an H shape.

[0035] like Figure 2 As shown, the two sides of the web 2 are symmetrical structures, and a transition surface 3 is provided between the two sides and the flange 1. The transition surface 3 is an arc transition, which increases the connection strength, improves the strength of the entire pile body, and facilitates the processing of the mold;

[0036] At least one longitudinally extending protrusion 11 is provided on one side of the two flanges 1, and the cross-sectional shape of the protrusion 11 is arc-shaped. A longitudinally extending recess 12 is provided on the side of the flange 1 away from the protrusion 11. The protrusion 11 is adapted to the recess 12, and the length and width of the protrusion 11 are smaller than the recess 12 to avoid over-positioning during assembly.

[0037] During use:

[0038] A convex portion 11 is provided on one side of each flange 1, and two corresponding concave portions 12 are provided to increase the contact area between the piles, so that the force is evenly distributed, and at the same time, the sealing of the docking is further increased to prevent water seepage. In order to form a continuous wall structure, the two opposite sides of the two adjacent piles are respectively formed with the convex portion 11 and the concave portion 12 to form two interlocking sides, so as to achieve close cooperation between the adjacent piles, which is used for the implementation of foundation pit maintenance projects and slope stabilization projects.

[0039] Embodiment 2:

[0040] The other parts are the same as those in the first embodiment. Figure 3 As shown, in addition to the two side surfaces of the web 2 being symmetrical structures, the transition surfaces 3 between the two side surfaces and the flange 1 are bevel transitions;

[0041] Embodiment three:

[0042] The other parts are the same as those in the first embodiment. Figure 4 As shown, in addition to the two side surfaces of the web 2 being symmetrical structures, the two side surfaces are transition surfaces 3, and the transition surfaces 3 are arc surfaces, which extend to the two side ends of the flange 1;

[0043] Embodiment 4:

[0044] The other parts are the same as those in the first embodiment. On the pile body, the cross-sectional shape of the protrusion 11 is any one of square, rectangular, trapezoidal, triangular, sawtooth, and arc, and the concave portion 12 is adapted to the protrusion 11, such as Figure 5 As shown, the cross-sectional shapes of the protrusion 11 and the recess 12 are trapezoidal.

[0045] During use:

[0046] When the design of the convex part 11 and the concave part 12 is adapted and both are any of square, rectangular, trapezoidal, triangular, serrated, and arc-shaped, the purpose is to increase the contact area between the water stop piles and prevent water seepage; in particular, when the design of the convex part 11 and the concave part 12 is adapted to a trapezoidal, triangular or serrated structure, the installation guidance is better.

[0047] On the basis of the above-mentioned embodiment, arc-shaped flanges 13 protruding outward are arranged at the two outer ends of the flange 1, so that the lateral rigidity of the pile body is greater and a greater bearing capacity is obtained.

[0048] On the basis of the above embodiment, a through groove is opened in the middle of the pile body, and the cross-sectional shape of the through groove is circular or square. The through groove is provided with 1 or 2 through grooves, which further reduces the amount of concrete on the basis of satisfying the structural strength.

[0049] On the basis of the above-mentioned embodiment, the flange 1 and the web 2 are integrally cast by concrete, and the structural strength is high. A hanger bar is pre-embedded on one side of the flange 1 to facilitate the later construction work.

[0050] Working principle:

[0051] The utility model provides a special-shaped support interlocking water-stop pile, which is used for the implementation of foundation pit maintenance engineering and slope stabilization engineering. When in use, one end is inserted into the soil at the bottom of the foundation pit side wall for fixing. A plurality of interlocking water-stop piles are constructed at the same time. The two opposite sides of two adjacent pile bodies are respectively formed with a convex part 11 and a concave part 12 to form two interlocking side surfaces, so as to achieve close matching of adjacent pile bodies. Figure 6-8 As shown, side-by-side splicing and fixing are achieved to form a supporting pile wall effect for foundation pit protection.

[0052] A transition surface 3 is provided between the flange 1 and the web 2 to increase the contact surface with the foundation pit, thereby providing strong anti-support force and more advantageous mechanical properties. At the same time, arc-shaped flanges 13 protruding outward are provided at the two outer ends of the flange 1 to increase the lateral stiffness of the pile body, thereby obtaining a greater bearing capacity and improving the endurance of the non-prestressed tendons, prestressed tendons and stirrups in the pile body.

[0053] The pile body of the utility model has a hollow structure, which further reduces the amount of concrete on the basis of satisfying the structural strength.

[0054] In summary:

[0055] The special-shaped supporting interlocking water-stopping pile of the utility model adopts the above-mentioned structure, which can effectively improve the rigidity of the pile body, increase the durability, shear resistance and bending resistance of the pile body, and improve the overall performance of the pile body.

[0056] The above shows and describes the basic principle, main features and advantages of the utility model. The front, back, left and right used in the text are not specific, mainly for a more intuitive description of the technical solution, and do not have a limiting effect. The technical personnel in this industry should understand that the above implementation is only to illustrate the technical concept and characteristics of the utility model, and its purpose is to enable people familiar with this technology to understand the content of the utility model and implement it, and it cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A special-shaped support interlocking water-stopping pile, comprising at least one pile body, characterized in that: The pile body is provided with non-prestressed tendons, prestressed tendons and stirrups; The pile body comprises two flanges (1) and a web (2) connected between the two flanges (1); the thickness of the flange (1) is greater than the thickness of the web (2), and the cross section thereof forms an H shape; The two side surfaces of the web (2) are symmetrical structures, and transition surfaces (3) are provided between the two side surfaces and the flange (1); At least one longitudinally extending convex portion (11) is provided on one side of the two flanges (1), and a longitudinally extending concave portion (12) is provided on one side of the flange (1) away from the convex portion (11), and the convex portion (11) is matched with the concave portion (12); Wherein, the length and width of the convex portion (11) are smaller than those of the concave portion (12).

2. The special-shaped support interlocking water-stopping pile according to claim 1 is characterized in that: The transition surfaces (3) between the two side surfaces of the web (2) and the flange (1) are arranged to be either arc-shaped or bevel-angled.

3. The special-shaped support interlocking water-stopping pile according to claim 1 is characterized in that: The two side surfaces of the web (2) are symmetrical structures. The two side surfaces are transition surfaces (3). The transition surfaces (3) are arc surfaces. The arc surfaces extend to the two side ends of the flange (1).

4. The special-shaped support interlocking water-stopping pile according to claim 1 is characterized in that: On the pile body, the cross-sectional shape of the convex portion (11) is any one of square, rectangular, trapezoidal, triangular, sawtooth, and arc, and the concave portion (12) is matched with the convex portion (11).

5. The special-shaped support interlocking water-stopping pile according to claim 1 is characterized in that: The outer end surfaces of the two flanges (1) are both provided with arc-shaped flanges (13) protruding outwards.

6. The special-shaped support interlocking water-stopping pile according to claim 1, characterized in that: A through groove is provided in the middle of the pile body, the cross-sectional shape of the through groove is circular or square, and the number of the through grooves is one or two.

7. The special-shaped support interlocking water-stopping pile according to claim 1 is characterized in that: The flange (1) and the web (2) are integrally cast by concrete, and a hanger bar is pre-embedded on one side of the flange (1).

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