A construction method for connecting meshing pipe piles

Abstract

The present invention relates to the technical field of precast pipe piles, in particular to a construction method for connecting meshing pipe piles. The lower pipe pile is constructed to a reserved position, and a reinforcing ring pipe is sleeved on the lower pipe pile; the upper pipe pile is hoisted above the lower pipe pile, and the upper pipe pile and the lower pipe pile are connected into a whole through threaded cooperation; the reinforcing ring pipe is lifted so that the reinforcing ring pipe is sleeved at the connection position between the upper pipe pile and the lower pipe pile and at a partial pile body position of the upper pipe pile; a buckle-type reinforcing ring is installed on the lower pipe pile, and the buckle-type reinforcing ring is sleeved at a partial pile body position of the lower pipe pile and makes up for the remaining position after the lifting of the reinforcing ring pipe. The advantages of the present invention are: the connection strength between the pipe piles is high and stable and reliable; the construction time is short, the welding positions are few, and the construction is convenient; the structure is simple and reasonable, the mechanical property of the pipe pile is good, and it is suitable for popularization.

Description

Technical Field

[0001] The present invention relates to the technical field of precast pipe piles, and in particular to a construction method for connecting meshing pipe piles. Background Art

[0002] As a device with mature technology, pipe piles have been applied in various projects due to their many advantages such as prefabrication and light weight. Generally speaking, pipe piles are prefabricated in segmental form with a certain standard length during prefabrication. Therefore, during their use, elongation operations are often carried out to meet the requirements of their use length.

[0003] Currently, the common elongation methods of pipe piles mainly include two types: welding connection and threaded connection.

[0004] Welding connection means welding each section of the pipe pile in sequence to form an integral body. Its connection strength is high and stable, but the welding takes a long time and precise positioning between the pipe piles is required, such as ensuring the concentricity of the pipe piles.

[0005] Threaded connection means setting corresponding threads at the connection ends between two butt - joint pipe piles, so that the pipe piles can be connected through thread fitting. The connection strength of this connection method is relatively high and the operation is convenient. However, due to the use of thread fitting, if rotation occurs in the opposite direction to the thread direction, for example, during hammer - driven pile sinking, when the pipe pile rotates in the opposite direction to the thread direction due to hammering, the threaded connection between the pipe piles will become loose and the connection performance cannot be guaranteed. Summary of the Invention

[0006] The purpose of the present invention is to provide a construction method for connecting meshing pipe piles according to the deficiencies of the above - mentioned prior art. Through the cooperation of the convex tooth structure and the concave tooth structure, the rapid connection between the pipe piles is realized, and with the cooperation of the reinforcing ring pipe and the snap - type reinforcing ring, the high - precision positioning connection between the pipe piles is achieved.

[0007] The purpose of the present invention is achieved by the following technical solutions:

[0008] A construction method for connecting meshing pipe piles, characterized in that: the construction method includes the following steps:

[0009] Construct the lower pipe pile to the reserved position, and sleeved a reinforcing ring pipe on the lower pipe pile;

[0010] Lift the upper pipe pile above the lower pipe pile, and connect the upper pipe pile and the lower pipe pile into an integral body through thread fitting;

[0011] Lift the reinforcing ring pipe, so that the reinforcing ring pipe is sleeved at the connection position between the upper pipe pile and the lower pipe pile and at the local pile body of the upper pipe pile;

[0012] Install a snap - type reinforcement ring on the lower pipe pile. The snap - type reinforcement ring is sleeved on a partial pile body of the lower pipe pile and makes up for the remaining position after the reinforcement ring pipe is lifted up.

[0013] When the upper pipe pile is prefabricated, one of a convex tooth structure or a concave tooth structure is arranged at its bottom end through an end plate. When the lower pipe pile is prefabricated, the other of the convex tooth structure or the concave tooth structure is arranged at its top end through an end plate; the convex tooth structure and the concave tooth structure form a threaded fit connection.

[0014] On the local outer wall at the bottom of the upper pipe pile and the local outer wall at the top of the lower pipe pile, reserved channels are arranged along the height direction of the pipe pile. Convex teeth matching with the reserved channels are arranged on the inner rings of the reinforcement ring pipe and the snap - type reinforcement ring. The reinforcement ring pipe and the snap - type reinforcement ring are respectively connected with the upper pipe pile or the lower pipe pile through the cooperation between their respective convex teeth and the reserved channels and can slide up and down on the periphery of the two, realizing the lifting of the reinforcement ring pipe.

[0015] The snap - type reinforcement ring includes two symmetrical split bodies. Rotate and open the two split bodies and sleeve them on the lower pipe pile, and then weld the two split bodies into a whole.

[0016] The advantages of the present invention are as follows: the connection strength between pipe piles is high, stable and reliable; the construction time is short, the welding positions are few, and the construction is convenient; the structure is simple and reasonable, the stress performance of the pipe pile is good, and it is suitable for popularization. Description of the Drawings

[0017] Figure 1 It is a partial structural schematic diagram of the convex tooth structure and the concave tooth structure in the present invention;

[0018] Figure 2 It is a structural schematic diagram of the reinforcement ring pipe in the present invention;

[0019] Figure 3 It is a structural schematic diagram of the snap - type reinforcement ring in the present invention;

[0020] Figure 4 It is a structural schematic diagram of the present invention. Detailed Embodiment

[0021] The following further details the features of the present invention and other related features through embodiments in combination with the drawings for the understanding of those skilled in the same industry:

[0022] Such as Figures 1-4As shown in the figure, the markings 1 - 13 in the figure respectively represent: end plate 1, convex tooth structure 2, concave tooth structure 3, reserved channel 4, reinforcing ring pipe 5, snap - type reinforcing ring 6, opening 7, rotating shaft 8, convex tooth 9, upper pipe pile 10, lower pipe pile 11, connecting section 12, connecting section 13.

[0023] Embodiment: As Figures 1 to 4 shown, in this embodiment, the meshing pipe pile joint structure is used to realize the connection between the upper pipe pile 10 and the lower pipe pile 11, and can ensure the connection performance between the two.

[0024] As Figure 1 shown, a convex tooth structure 2 is provided at the bottom of the upper pipe pile 10. The convex tooth structure 2 is fixedly connected to the bottom end of the upper pipe pile 10 through the end plate 1, and an external thread is provided on the outer surface of the convex tooth structure 2. A concave tooth structure 3 is provided at the top of the lower pipe pile 11. The concave tooth structure 3 is fixedly connected to the top end of the lower pipe pile 11 through the end plate 1, and an internal thread that is adapted to and mates with the external thread of the convex tooth structure 2 is provided on the inner surface of the concave tooth structure 3. When the upper pipe pile 10 and the lower pipe pile 11 are butted, the convex tooth structure 2 of the upper pipe pile 10 can be screwed into the concave tooth structure 3 of the lower pipe pile 11 by means of thread fitting, so as to realize the rapid connection between the two.

[0025] As Figure 1 shown, connection sections are respectively provided at the bottom of the upper pipe pile 10 and the top of the lower pipe pile 11, that is, a connection section 12 is provided at the bottom of the upper pipe pile 10, and a connection section 13 is provided at the top of the lower pipe pile 11; wherein, the diameter of the connection section 12 is equal to the diameter of the connection section 13, and the diameter of the connection section 12 is smaller than the pipe diameter of the upper pipe pile 10, and the diameter of the connection section 13 is smaller than the pipe diameter of the lower pipe pile 11. At the same time, the lengths of the connection section 12 and the connection section 13 meet the installation requirements of the reinforcing ring pipe 5 and the snap - type reinforcing ring 6.

[0026] Reserved channels 4 are respectively provided on the outer walls of the connection section 12 and the connection section 13, and the reserved channel 4 on the connection section 12 matches the reserved channel 4 on the connection section 13. Especially when the upper pipe pile 10 and the lower pipe pile 11 are connected by thread fitting, the reserved channels 4 of the two still correspond to each other in position.

[0027] A reinforcing ring pipe 5 and a snap - type reinforcing ring 6 are sleeved around the connection section 12 and the connection section 13 for strengthening and protecting the connection between the upper pipe pile 10 and the lower pipe pile 11.

[0028] Specifically, in combination with Figure 1 and Figure 2As shown, the reinforcing ring pipe 5 is an annular structure, and the shape and size of its inner ring are adapted to and match the shape and size of the connecting section 12 and the connecting section 13. On the inner ring of the reinforcing ring pipe 5, there are convex teeth 9 that match the number and position of the reserved channels 4. The convex teeth 9 can be clamped in the reserved channels 4, so that the reinforcing ring pipe 5 can form a connection between the upper pipe pile 10 and the lower pipe pile 11 and can slide up and down around the upper and lower pipe piles.

[0029] Combined Figure 1 with Figure 3 As shown, the snap-type reinforcing ring 6 is an annular structure, and the shape and size of its inner ring are also adapted to and match the shape and size of the connecting section 12 and the connecting section 13. The snap-type reinforcing ring 6 is composed of two symmetrically arranged split bodies. One end of the two split bodies is hinged through a rotating shaft 8, and there is an opening 7 between the other ends; during use, the split bodies can be opened by rotating the rotating shaft 8, and then the rotating shaft 8 is rotated again to enclose the connecting section 12 and the connecting section 13. On the inner ring of the snap-type reinforcing ring 6, there are also convex teeth that match the number and position of the reserved channels 4.

[0030] When this embodiment is in use, it includes the following usage methods:

[0031] 1) During construction, the lower pipe pile 11 is constructed to the reserved position, and the reinforcing ring pipe 5 is sleeved onto the connecting section 13 of the lower pipe pile 11 along the reserved channel 4.

[0032] 2) The upper pipe pile 10 is hoisted, the upper pipe pile 10 is aligned with the lower pipe pile 11, and the convex tooth structure 2 and the concave tooth structure 3 between the upper and lower pipe piles are fixed by threaded connection.

[0033] 3) Then the reinforcing ring pipe 5 is lifted from the connecting section 13 so that the reinforcing ring pipe 5 sleeves the joint position between the upper and lower pipe piles and the connecting section 12 of the upper pipe pile 10, effectively preventing the pile bodies of the upper and lower pipe piles from rotating during construction or subsequent use, especially the reverse rotation during the pile driving process, thereby avoiding the loosening of the threaded connection and ensuring the connection performance.

[0034] 4) The snap-type reinforcing ring 6 is wrapped around the remaining position after the reinforcing ring pipe 5 is lifted, that is, the remaining part of the connecting section 13 and the joint position between the upper and lower pipe piles, and then the opening 7 is welded. The connection of the upper and lower pipe piles is completed, and the lengthening of the pipe pile is realized.

[0035] When this embodiment is specifically implemented: the wall thicknesses of the reinforcing ring pipe 5 and the snap-type reinforcing ring 6 are both matched with the difference between the diameter of the upper pipe pile 10 or the lower pipe pile 11 and the diameters of the connecting section 12 and the connecting section 13. For example Figure 4As shown, when the pipe pile is buried in the foundation, the pipe pile can resist the lateral force exerted by the foundation soil, and the reinforcing ring pipe 5 and the buckle-type reinforcing ring 6 protect the connection part between the upper pipe pile 10 and the lower pipe pile 11 to avoid the adverse effects of the lateral force on this relatively weak position.

[0036] Although the above embodiments have described in detail the concept and embodiments of the object of the present invention with reference to the accompanying drawings, those of ordinary skill in the art can recognize that various improvements and transformations can still be made to the present invention without departing from the scope defined by the claims, so they will not be elaborated here one by one.

Claims

1. A meshing pipe pile connection construction method, characterized in that: The construction method includes the following steps: Construct the lower pipe pile to the reserved position, and sleeved a reinforcing ring pipe on the lower pipe pile; Lift and install the upper pipe pile above the lower pipe pile, and connect the upper pipe pile and the lower pipe pile into a whole through threaded cooperation; Lift the reinforcing ring pipe upward so that the reinforcing ring pipe is sleeved at the connection position between the upper pipe pile and the lower pipe pile and at the local pile body of the upper pipe pile; Install a snap-type reinforcing ring on the lower pipe pile, and the snap-type reinforcing ring is sleeved at the local pile body of the lower pipe pile and makes up for the remaining position after the lifting of the reinforcing ring pipe.

2. The meshing type pipe pile connection construction method according to claim 1, characterized in that: When prefabricating the upper pipe pile, one of a convex tooth structure or a concave tooth structure is arranged at the bottom end through an end plate, and when prefabricating the lower pipe pile, the other of the convex tooth structure or the concave tooth structure is arranged at the top end through an end plate; the convex tooth structure and the concave tooth structure form a threaded connection.

3. A meshing type pipe pile connection construction method according to claim 1, characterized in that: Local outer walls at the bottom of the upper pipe pile and local outer walls at the top of the lower pipe pile are both provided with reserved channels arranged along the height direction of the pipe pile. The inner rings of the reinforcing ring pipe and the snap-type reinforcing ring are provided with convex teeth matching the reserved channels. The reinforcing ring pipe and the snap-type reinforcing ring are respectively connected to the upper pipe pile or the lower pipe pile through the cooperation between their respective convex teeth and the reserved channels and can slide up and down on the peripheries of the two, realizing the upward lifting of the reinforcing ring pipe.

4. A meshing type pipe pile connection construction method according to claim 1, characterized in that: The snap-type reinforcing ring includes two symmetrical split bodies. Rotate and open the two split bodies and sleeve them on the lower pipe pile, and then weld the two split bodies into a whole.

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