Novel PC composite pile

Abstract

The utility model discloses a novel PC composite pile which comprises a steel pipe pile, a steel sheet pile and a lock catch strip. The lock catch strips are arranged on the two sides of the steel pipe piles, the lock catch strips are formed by cutting the steel sheet piles, the lock catch strips can be buckled with one sides of the steel sheet piles, and the steel sheet piles and the steel pipe piles are connected in a buckled mode according to a preset sequence. According to the novel PC composite pile, the steel sheet pile is cut to serve as the lock catch strip to be installed on the steel pipe pile, the lock catch strip is made of the steel sheet pile with high strength, the strength problem and the situations of lock catch tearing, unhooking and the like are directly solved, the lock catch strip and the lock catch of the steel sheet pile are completely the same, and therefore matching performance is very good, and the water stopping effect is very good; the angle of the lock catch hook of the steel sheet pile is large, and the problem that construction is difficult due to the fact that the angle of the lock catch hook of an existing lock catch strip is too small and the hook is short is completely solved.

Description

Technical Field

[0001] This utility model relates to the field of PC composite pile technology, and specifically to a novel PC composite pile. Background Technology

[0002] With the rapid development of urban underground space construction in my country, PC composite piles have been applied in numerous engineering projects. PC composite piles are a combination of steel pipe piles and steel sheet piles, forming various cross-sections. They are connected to the steel sheet piles via interlocking strips welded to the steel pipe piles. The steel pipe piles retain soil, while the steel sheet piles retain water. PC composite piles have high bending stiffness and excellent water-stopping effect, making them suitable for foundation pits with depths of 6–18 meters. They are widely used in civil engineering, municipal engineering, and water conservancy projects.

[0003] In the PC composite piles used by our company, the locking strips are purchased separately and are not manufactured by the same company as the sheet piles. This results in several defects in the locking strips: the sheet material is too thin, leading to insufficient tensile strength and elongation, resulting in issues such as locking strip tearing and hook detachment; the locking hook angle is too small, and the hook distance is too short, increasing the difficulty of construction; and the interlocking fit between the locking strip and the sheet pile locking strip is insufficient, leading to poor water-stopping effect and project risks.

[0004] Therefore, it is urgent to find a way to solve the above problems. Utility Model Content

[0005] To address the aforementioned problems in existing technologies, this paper aims to provide a novel PC composite pile.

[0006] The specific technical solution is as follows:

[0007] A new type of PC composite pile mainly includes: steel pipe pile, steel sheet pile and interlocking strip;

[0008] The steel pipe pile is provided with locking strips on both sides. The locking strips are cut from the steel sheet piles. The locking strips can be fastened to one side of the steel sheet pile. A number of steel sheet piles and a number of steel pipe piles are fastened and connected in a preset order.

[0009] The aforementioned novel PC composite pile also features that the locking strips located on both sides of the steel pipe pile are symmetrically arranged.

[0010] The aforementioned novel PC composite pile also has the following feature: the installation points of the two locking strips located on both sides of the steel pipe pile are located on the same diameter of the steel pipe pile.

[0011] The aforementioned novel PC composite pile also features that the installation points of the two locking strips located on both sides of the steel pipe pile are set at an acute angle to the center of the steel pipe pile.

[0012] The aforementioned novel PC composite pile also features that the two locking strips located on both sides of the steel pipe pile are arranged opposite to each other.

[0013] The aforementioned novel PC composite pile also features a reinforcing plate on the convex side of each locking strip.

[0014] The aforementioned novel PC composite pile also has the following feature: when several sheet piles are connected to several steel pipe piles, the concave bending directions of two adjacent sheet piles are the same or opposite to each other.

[0015] The positive effects of the above technical solution are:

[0016] This utility model provides a novel PC composite pile, in which steel sheet piles are cut and used as locking strips installed on steel pipe piles. The locking strips are made of high-strength steel sheet piles, which directly solves the strength problem and the problems of locking strip tearing and hooking. The locking strips are exactly the same as the locking strips that come with the steel sheet piles, so the fit is very good and the water-stopping effect is very good. The locking hook angle of the steel sheet piles is relatively large, which completely solves the problem of construction difficulties caused by the small locking hook angle and short hooks of existing locking strips. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a novel PC composite pile provided in the first embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the overall structure of a novel PC composite pile provided in the second embodiment of the present invention;

[0019] Figure 3 A schematic diagram of the first direction structure of the steel pipe pile with locking strip provided in the first embodiment of this utility model;

[0020] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure along the AA direction;

[0021] Figure 5 A schematic diagram of the first direction structure of the steel pipe pile with locking strip provided in the second embodiment of this utility model;

[0022] Figure 6 for Figure 5 A schematic diagram of the cross-sectional structure along the BB direction.

[0023] In the attached diagram: 1. Steel pipe pile; 13. Installation point; 2. Steel sheet pile; 3. Locking strip; 4. Reinforcing plate. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] The serial numbers assigned to components in this document, such as "first," "second," etc., are merely for distinguishing the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages). In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0027] Please see Figures 1 to 6 This utility model discloses a novel PC composite pile, comprising: a steel pipe pile 1, a steel sheet pile 2, and a locking strip 3;

[0028] Both sides of the steel pipe pile 1 are provided with locking strips 3. The locking strips 3 are cut from the steel sheet pile 1. The locking strips 3 can be locked with one side of the steel sheet pile 2. Several steel sheet piles 2 and several steel pipe piles 1 are locked and connected in a preset order.

[0029] Optionally, there may be one or more locking strips 3. For example, in this embodiment, both the steel pipe pile 1 and the steel sheet pile 2 are elongated structures. The locking strip 3 is set as one, and its length is adapted to the length of both the steel pipe pile 1 and the steel sheet pile 2. That is to say, the lengths of the locking strip 3, the steel pipe pile 1, and the steel sheet pile 2 are adapted to each other.

[0030] The sheet pile 2 has a cross-sectional shape that is generally a thin plate structure in the shape of "[", including a connected long plate and two small short plates, which are symmetrical. A longitudinal cut along a straight line perpendicular to the long plate, i.e., along the length of the sheet pile 2, yields two interlocking strip structures. The interlocking shapes of the two strip structures are identical, but their dimensions differ in the plate body. Preferably, in this embodiment, a longitudinal cut along a straight line perpendicular to the long plate and located at the center line of the long plate forms two symmetrical interlocking strip structures with identical shapes, resulting in identical interlocking strip shapes 3. Existing steel pipe piles are simple tubular components. Welding the interlocking strips 3 onto existing steel pipe piles forms the steel pipe pile 1 with interlocking strips 3 described in this application. The steel pipe pile 1 of this application includes the steel pipe pile of the prior art and the interlocking strips 3 on both sides.

[0031] Optionally, such as Figure 3 and Figure 4 As shown, in the first embodiment, the locking strips 3 located on both sides of the steel pipe pile 1 are symmetrically arranged.

[0032] In one implementation, such as Figure 1 and Figure 2 As shown at position C, the installation points 13 of the two locking strips 3 on both sides of the steel pipe pile 1 are located on the same diameter of the steel pipe pile 1. This design can meet the requirement of straight arrangement of the steel pipe pile 1 and the steel sheet pile 2.

[0033] In another implementation, such as Figure 1 and Figure 2 As shown at position D, the installation points 13 of the two locking strips 3 on both sides of the steel pipe pile 1 are set at an acute angle to the center of the steel pipe pile 1. This design can meet the needs of the steel pipe pile 1 and the steel sheet pile 2 for the bend connection.

[0034] When several sheet piles 2 are connected to several steel pipe piles 1, the concave bending direction of two adjacent sheet piles 2 is the same. For example, in the first embodiment, the steel pipe piles 1, sheet piles 2, and locking strips 3 form a structure like... Figure 1 The cross-section shown is that of a rectangular PC composite pile.

[0035] Optionally, such as Figure 4 As shown, in the second embodiment, the two locking strips 3 located on both sides of the steel pipe pile 1 are arranged opposite to each other. At this time, the short plates of the two locking strips 3 on both sides of the steel pipe pile 1 extend in opposite directions.

[0036] Optionally, when a plurality of sheet piles 2 are connected to a plurality of steel pipe piles 1, the concave bending directions of two adjacent sheet piles 2 are opposite to each other. For example, in the second embodiment, the steel pipe piles 1, sheet piles 2, and locking strips 3 form a structure as follows: Figure 2 The cross-section shown is that of a rectangular PC composite pile.

[0037] It should be noted that the steel pipe pile 1, steel sheet pile 2, and locking strip 3 can be combined to form various cross-sectional shapes, such as circular, elliptical, or even polygonal. This is merely an example and is not intended to limit the scope of this utility model.

[0038] Furthermore, a reinforcing plate 4 is provided on the protruding side of each latching strip 3. This can further increase the strength of the latching strip 3 to solve the various problems caused by insufficient strength mentioned above.

[0039] In summary, this utility model provides a novel PC composite pile in which a cut steel sheet pile 2 is used as a locking strip 3 and installed on a steel pipe pile 1. This locking strip 3 is made of high-strength steel sheet pile 2, which directly solves the strength problem and the problems of locking strip tearing and hooking. The locking strip 3 is exactly the same as the locking strip of the steel sheet pile 2, so the fit is very good and the water-stopping effect is very good. The locking hook angle of the steel sheet pile 2 is relatively large, which completely solves the problem of construction difficulty caused by the small locking hook angle and short hook of the existing locking strip.

[0040] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0041] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A new PC composite pile characterized in that, Include: Steel pipe pile, steel sheet pile and lock strip; Both sides of the steel pipe pile are provided with the lock strip, the lock strip is cut from the steel sheet pile, the lock strip can be buckled with one side of the steel sheet pile, and a plurality of steel sheet piles and a plurality of steel pipe piles are buckled and connected in a predetermined order; The installation points of the two lock strips on both sides of the steel pipe pile are arranged at an acute angle with the center of the steel pipe pile; The convex side of each lock strip is provided with a reinforcing plate.

2. The new PC combined pile according to claim 1, characterized in that, The lock strips on both sides of the steel pipe pile are symmetrically arranged.

3. The new PC combined pile according to claim 2, characterized in that, The installation points of the two lock strips on both sides of the steel pipe pile are located on the same diameter of the steel pipe pile.

4. The new PC combined pile according to claim 1, characterized in that, The two lock strips on both sides of the steel pipe pile are arranged away from each other.

5. The new PC combined pile according to any one of claims 1 to 4, characterized in that, When a plurality of steel sheet piles and a plurality of steel pipe piles are connected, the concave bending directions of the two adjacent steel sheet piles are the same or away from each other.

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