High-strength concrete pipe pile
Technical Field
The utility model relates to the technical field of building construction, in particular to a high-strength concrete pipe pile.
Background
The concrete pipe pile is one kind of engineering construction material and is used mainly in large-scale railway bridge building engineering, and has the functions of pile foundation, pile foundation and pile driving to transfer the weight of the building to the soil layer with high bearing capacity. If the soil layer with high bearing capacity at the lower layer is deep, the friction force between the pile foundation and surrounding soil can be used for supporting the weight of the upper building.
For example, chinese patent number is: the utility model provides a "concrete pipe pile" of CN211368670U, it includes the tubular pile, detachable connection has the clamp structure on the tubular pile, the last threaded connection of clamp structure has the fixed screw, be connected with the fixed screw on the tubular pile, the clamp structure includes splint, splint have two altogether, the one end rotation of two splint is connected with the pivot, the equal one end of two splint is equal fixedly connected with fixed plate, the removable connection of clamp structure is on the tubular pile, the one end threaded connection of fixed plate has the screw, the one end threaded connection of screw has the reinforcement nut, the clamp structure is cast iron material preparation.
In the prior art, when the total length of the pipe piles needs to be extended, the problem that the pipe piles are spliced is solved by adopting a pipe pile splicing mode, but after a plurality of pipe piles are spliced, the pipe piles need to be spliced by adopting a hammering method or a pile pressing method, the pipe piles need to be spliced in a vertical mode by applying pressure from top to bottom, dislocation and inclination cannot occur at the connecting position, if a point dislocation occurs between the pipe piles, the pipe pile connecting ends collapse due to the action of downward pressure, and high requirements are put forward on the splicing precision between the pipe piles.
Disclosure of Invention
The utility model aims to solve the problems that in the prior art, the vertical direction of tubular piles needs to be spliced, the joint cannot be misplaced or inclined, if misplaced, the joint ends of the tubular piles collapse due to the action of downward pressure, and high requirements are put on the splicing precision of the tubular piles.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a high strength concrete tubular pile, includes extension tubular pile and foundation tubular pile, extend tubular pile bottom and the fixed grafting in foundation tubular pile top, extend tubular pile, the inboard even integrative pouring shaping of foundation tubular pile have a plurality of spliced poles, and every spliced pole inboard all runs through and has offered jack one, every jack one inside has all pegged graft spacing steel pipe, every spacing steel pipe bottom all sets up the screw thread, the fixed steel bushing that has cup jointed in foundation tubular pile bottom outside, the steel bushing that protects comprises pipe box and top welded steel ring, the outside evenly welded of steel ring has a plurality of nuts, spacing steel pipe bottom and nut threaded connection.
Preferably, the inner insertion pipe is integrally cast at the bottom ends of the extension pipe pile and the foundation pipe pile, and the inner insertion pipe of the extension pipe pile is fixedly inserted into the inner side of the top of the foundation pipe pile.
Preferably, the inner insertion pipe is provided with a mounting hole in a penetrating manner, a locking bolt is inserted into the mounting hole, and the inner insertion pipe of the foundation pipe pile is fixedly inserted into the inner side of the pipe sleeve through the locking bolt.
Preferably, teeth are uniformly arranged on the edge of the bottom of the pipe sleeve, a second jack is arranged on the pipe sleeve in a penetrating mode, and the locking bolt is inserted into the second jack.
Preferably, the reinforcing rings are uniformly cast at two ends of the inner side of the extension pipe pile and the inner side of the foundation pipe pile, each reinforcing column is positioned between the two reinforcing rings, and the bottoms of the reinforcing rings positioned at the bottoms of the extension pipe pile and the foundation pipe pile are integrally cast with the top of the inner insertion pipe.
Preferably, the inner insertion pipe of the extension pipe pile is clamped with the reinforcing ring at the top of the foundation pipe pile.
Compared with the prior art, the utility model has the advantages and positive effects that:
1. according to the utility model, after the axes of the insertion holes of the extension pipe pile and the foundation pipe pile are on the same straight line, the plurality of limit steel pipes are sequentially inserted into each insertion hole, the bottoms of the limit steel pipes are fastened and installed on the protective steel sleeve at the bottom of the foundation pipe pile through threads, so that the extension pipe pile and the foundation pipe pile can be in a vertical state, positioning and installation between the two pipe piles are simplified, the integral structural strength of the pipe pile can be enhanced by the plurality of reinforcing columns and the limit steel pipes inserted in the reinforcing columns, and the problem that the joint is broken when the pipe pile is integrally inserted downwards is prevented.
2. According to the utility model, the two reinforcing rings not only can reinforce the two ends of the reinforcing column, but also can reinforce the inner side structures of the extension pipe pile and the foundation pipe pile, so that the extension pipe pile and the foundation pipe pile are prevented from collapsing when being subjected to extrusion force from the outer side.
Drawings
Fig. 1 is an assembled sectional perspective view of a high-strength concrete pipe pile according to the present utility model;
fig. 2 is a cross-sectional view of a foundation pipe pile of the present utility model, which is a high-strength concrete pipe pile;
fig. 3 is a perspective view showing a cross section of a foundation pipe pile of a high-strength concrete pipe pile according to the present utility model;
fig. 4 is a perspective view of a protective steel sleeve of a high-strength concrete pipe pile according to the present utility model.
Legend description: 1. extending the tubular pile; 2. a foundation pipe pile; 20. a reinforcing column; 21. a jack I; 22. an inner cannula; 23. a mounting hole; 24. a reinforcing ring; 3. limiting the steel tube; 30. a thread; 4. a protective steel sleeve; 40. a pipe sleeve; 41. a steel ring; 42. a nut; 43. teeth; 44. a second jack; 45. and (5) locking the bolt.
Detailed Description
In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.
Referring to fig. 1-3, the present utility model provides a technical solution: the high-strength concrete pipe pile comprises an extension pipe pile 1 and a foundation pipe pile 2, wherein the bottom of the extension pipe pile 1 is fixedly spliced with the top of the foundation pipe pile 2, a plurality of reinforcing columns 20 are uniformly and integrally cast and formed on the inner sides of the extension pipe pile 1 and the foundation pipe pile 2, first insertion holes 21 are formed in the inner sides of all the reinforcing columns 20 in a penetrating mode, first spacing steel pipes 3 are spliced in the first insertion holes 21, threads 30 are formed in the bottom of each spacing steel pipe 3, a protective steel sleeve 4 is fixedly sleeved on the outer side of the bottom of the foundation pipe pile 2, the protective steel sleeve 4 is formed by a pipe sleeve 40 and a steel ring 41 welded on the top of the protective steel sleeve, a plurality of nuts 42 are uniformly welded on the outer side of the steel ring 41, and the bottoms of the spacing steel pipes 3 are in threaded connection with the nuts 42; after the foundation pipe pile 2 is deeply buried, when the whole length of the foundation pipe pile 1 needs to be prolonged, the extending pipe pile 1 is vertically placed at the top end of the foundation pipe pile 2 through a crane, the extending pipe pile 1 is twisted at the top, the axes of the jacks I21 of the extending pipe pile 1 and the foundation pipe pile 2 are in the same straight line, and after a plurality of limiting steel pipes 3 are sequentially inserted into each jack I21, the limiting steel pipes 3 are twisted, so that the bottoms of the limiting steel pipes 3 are fixedly arranged on the protective steel sleeve 4 at the bottom of the foundation pipe pile 2 through threads 30, the extending pipe pile 1 and the foundation pipe pile 2 can be in a vertical state, and connection between the extending pipe pile 1 and the foundation pipe pile 2 is limited. Meanwhile, the plurality of reinforcing columns 20 and the limiting steel pipes 3 inserted in the reinforcing columns can strengthen the overall structural strength of the pipe pile, so that the problem that the joints collapse when the pipe pile is inserted downwards integrally is prevented, and the problem that the side walls of the pipe pile are damaged due to the extrusion of soil is effectively prevented.
As shown in fig. 1 and 3, the bottom ends of the extension pipe pile 1 and the foundation pipe pile 2 are uniformly cast and formed with an inner insertion pipe 22, the inner insertion pipe 22 of the extension pipe pile 1 is fixedly inserted into the inner side of the top of the foundation pipe pile 2, and the inner insertion pipe 22 is used for auxiliary limiting during installation.
As shown in fig. 1, 2 and 3, the inner insertion tube 22 is provided with a mounting hole 23 in a penetrating manner, a locking bolt 45 is inserted into the mounting hole 23, the inner insertion tube 22 of the foundation pipe pile 2 is fixedly inserted into the inner side of the pipe sleeve 40 through the locking bolt 45, and the pipe sleeve 40 is fixedly mounted on the inner insertion tube 22 through a plurality of locking bolts 45.
As shown in fig. 2 and 4, teeth 43 are uniformly arranged at the bottom edge of the pipe sleeve 40, a second jack 44 is arranged on the pipe sleeve 40 in a penetrating manner, and a locking bolt 45 is inserted into the second jack 44; the teeth 43 facilitate the insertion of the entire bottom of the tube stake into the hole.
As shown in fig. 1 and 3, the two ends of the inner side of the extension pipe pile 1 and the inner side of the foundation pipe pile 2 are uniformly cast and molded with reinforcing rings 24, each reinforcing column 20 is positioned between two reinforcing rings 24, and the bottoms of the reinforcing rings 24 positioned at the bottoms of the extension pipe pile 1 and the foundation pipe pile 2 are integrally cast and molded with the top of the inner insertion pipe 22; the two reinforcing rings 24 not only can reinforce the two ends of the reinforcing column 20, but also can reinforce the inner side structures of the extension pipe pile 1 and the foundation pipe pile 2, so that the extension pipe pile 1 and the foundation pipe pile 2 are prevented from collapsing when receiving extrusion force from the outer side.
As shown in fig. 1, the inner pipe 22 of the extension pipe pile 1 is clamped with the reinforcing ring 24 at the top of the foundation pipe pile 2, so that the extension pipe pile 1 and the foundation pipe pile 2 can be accurately positioned and installed.
The application method and the working principle of the device are as follows: after the foundation pipe pile 2 is deeply buried, when the whole length of the foundation pipe pile 1 needs to be prolonged, the extending pipe pile 1 is vertically placed at the top end of the foundation pipe pile 2 through a crane, the extending pipe pile 1 is twisted at the top, the axes of the jacks I21 of the extending pipe pile 1 and the foundation pipe pile 2 are in the same straight line, and after a plurality of limiting steel pipes 3 are sequentially inserted into each jack I21, the limiting steel pipes 3 are twisted, so that the bottoms of the limiting steel pipes 3 are fixedly arranged on the protective steel sleeve 4 at the bottom of the foundation pipe pile 2 through threads 30, the extending pipe pile 1 and the foundation pipe pile 2 can be in a vertical state, and connection between the extending pipe pile 1 and the foundation pipe pile 2 is limited.
Meanwhile, the plurality of reinforcing columns 20 and the limiting steel pipes 3 inserted in the reinforcing columns can strengthen the overall structural strength of the pipe pile, so that the problem that the joints collapse when the pipe pile is inserted downwards integrally is prevented, and the problem that the side walls of the pipe pile are damaged due to the extrusion of soil is effectively prevented.
The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.