Anti-pulling cement stirring composite pile

Abstract

The utility model relates to the field of concrete engineering, in particular to an anti-pulling cement mixing composite pile which comprises a bottom pile, a top pile and a composite pile frame, the top pile is welded to the top of the bottom pile, the composite pile frame is welded to the top of the top pile, and the composite pile frame extends into the top pile and the bottom pile. When the pile is used, cement mortar poured in the bottom pile and the top pile flows out from the first through holes and is mixed with a soil layer, a cement ring layer is formed between every two adjacent first frustum rings, the first frustum rings are matched to increase the contact with the soil layer, and the pulling resistance of the pile body is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to concrete engineering field especially relates to a cement mixing composite pile of uplift resistance. BACKGROUND

[0002] Composite pile is widely applied in the pile foundation, composite pile foundation, composite foundation of civil engineering, the soft soil foundation treatment of coastal area, riverside area, lakeside area expressway, high-speed railway and the work field such as airport, wharf, yard of above-mentioned area. The traditional composite pile is relatively smooth due to the surface, and the friction between pile and soil is small, which limits the full play of the uplift resistance of composite pile, so as to easily make the pile body tilt or cause the pile body to break, damage. SUMMARY

[0003] The technical personnel in the field provide a cement mixing composite pile of uplift resistance to solve the problems in the background art.

[0004] To solve the above technical problem, the utility model provides a cement mixing composite pile of uplift resistance, including bottom pile, top pile and composite pile frame, the top of bottom pile is welded top pile, and the top of top pile is welded composite pile frame, and composite pile frame extends into top pile and bottom pile,

[0005] The bottom pile includes bottom pile body, bottom pile drill, first conical ring and first through hole, a plurality of first through holes are annularly arranged on the lower side surface of the bottom pile body, the first through hole is inclined outward to the bottom pile body, and the bottom and the middle of the bottom pile body are provided with the first conical ring.

[0006] The top pile includes top pile body, second conical ring and second through hole, a plurality of second through holes are annularly arranged on the lower side surface of the top pile body, the second through hole is inclined outward to the top pile body, and the bottom and the middle of the top pile body are provided with the second conical ring.

[0007] In a preferred embodiment: the bottom pile drill is made of metal into a conical shape, a first metal ring plate is arranged above the bottom pile drill, and a plurality of first threaded steel bars are welded between the bottom pile drill and the first metal ring plate.

[0008] In a preferred embodiment: a plurality of first threaded steel bars are reinforced by spiral hoop, so that the bottom pile body in the form of cylindrical sleeve is prefabricated on the plurality of first threaded steel bars.

[0009] In a preferred embodiment: the top and bottom ends of the top pile body are provided with a first metal ring plate, a plurality of first threaded steel bars are welded and connected between the two first metal ring plates, and the plurality of first threaded steel bars are reinforced and connected by spiral hoop, so that the top pile body in the form of cylindrical sleeve is prefabricated on the plurality of first threaded steel bars.

[0010] In a preferred embodiment: the composite pile frame comprises a second metal ring plate, second threaded steel bars, annular binding hoops and triangular steel frames, and the lower end of the second metal ring plate is annularly welded with a plurality of second threaded steel bars.

[0011] In a preferred embodiment: a plurality of the second threaded steel bars are bound with a plurality of annular binding hoops for reinforcement connection, and the lower part of each second threaded steel bar is welded with a plurality of triangular steel frames.

[0012] Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

[0013] 1. When the utility model is used, the overall length of the composite pile frame is greater than the length of the top pile, so that the pile body formed by pouring cement into the bottom pile and the top pile from the second metal ring plate is more reliable.

[0014] 2. When the utility model is used, the cement mortar poured into the bottom pile and the top pile flows out from the first through hole, mixes with the soil layer, and forms a cement ring layer between every two adjacent first conical ring, which increases the resistance to the soil layer and improves the pullout resistance of the pile body. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is a structural schematic view provided by the application;

[0016] Fig. 2 is a structural schematic view of a bottom pile provided by the application;

[0017] Fig. 3 is a structural schematic view of a spiral binding hoop provided by the application;

[0018] Fig. 4 is a structural schematic view of a second threaded steel bar provided by the application;

[0019] In the figure: 1, bottom pile; 2, top pile; 3, composite pile frame; 4, first metal ring plate; 5, first threaded steel bar; 6, spiral binding hoop;

[0020] 11, bottom pile body; 12, bottom pile drill; 13, first conical ring; 14, first through hole;

[0021] 21, top pile body; 22, second conical ring; 23, second through hole;

[0022] 31, second metal ring plate; 32, second threaded steel bar; 33, annular binding hoop; 34, triangular steel frame. DETAILED DESCRIPTION

[0023] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments, and based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort fall within the protection scope of the present application.

[0024] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are merely for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be wall-mounted connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between two elements, for a person of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] Please refer to Figs. 1-4 In the present embodiment, an anti-pulling cement mixing composite pile is provided, comprising a bottom pile 1, a top pile 2 and a composite pile frame 3, the top of the bottom pile 1 is welded with the top pile 2, the top of the top pile 2 is welded with the composite pile frame 3, and the composite pile frame 3 extends into the top pile 2 and the bottom pile 1;

[0027] The bottom pile 1 comprises a bottom pile body 11, a bottom pile drill 12, a first conical ring 13 and a first through hole 14, the bottom pile drill 12 is made of metal in a conical shape, a first metal ring plate 4 is arranged above the bottom pile drill 12, a plurality of first threaded steel bars 5 are welded between the bottom pile drill 12 and the first metal ring plate 4, and the plurality of first threaded steel bars 5 are reinforced by a spiral hoop 6, so that the bottom pile body 11 made of cement precast in a cylindrical sleeve shape is poured on the plurality of first threaded steel bars 5, a plurality of first through holes 14 are annularly arranged on the lower side surface of the bottom pile body 11, the first through holes 14 are inclined outward at an angle of 45 degrees to the bottom pile body 11, so that the cement mortar poured in the bottom pile body 11 can smoothly flow out of the first through holes 14, and the first conical ring 13 is arranged on the bottom and the middle of the bottom pile body 11, the first conical ring 13 can increase the resistance to the soil layer by the large-diameter outer contour of the top, thereby improving the pullout resistance of the pile body.

[0028] The top pile 2 comprises a top pile body 21, a second conical ring 22 and a second through hole 23, the upper and lower ends of the top pile body 21 are provided with the first metal ring plate 4, the first metal ring plate 4 is welded and connected by the first threaded steel bars 5, the first threaded steel bars 5 are reinforced and connected by the spiral hoop 6, the top pile body 21 is poured with cement on the first threaded steel bars 5 to form a cylindrical sleeve, a plurality of second through holes 23 are annularly arranged on the lower side of the top pile body 21, the second through holes 23 are inclined outward at an angle of 45 degrees to the top pile body 21, the cement mortar poured in the top pile body 21 can flow out of the second through holes 23, the bottom and the middle of the top pile body 21 are provided with the second conical ring 22, the second conical ring 22 can increase the resistance to the soil layer by the large-diameter outer contour of the top, and the pullout resistance of the pile body is improved.

[0029] The composite pile frame 3 comprises a second metal ring plate 31, a second threaded steel bar 32, an annular hoop 33 and a triangular steel frame 34, the lower end of the second metal ring plate 31 is annularly welded with a plurality of second threaded steel bars 32, a plurality of annular hoops 33 are bound on the second threaded steel bars 32 to reinforce and connect, and the lower part of each second threaded steel bar 32 is welded with a plurality of triangular steel frames 34, so that the internal pile of the subsequent cement pouring composite pile and the composite pile frame 3 are more firmly connected.

[0030] The working principle of the utility model is:

[0031] In use, the ground is punched by a hole puncher to form a hole with a corresponding depth, the bottom pile 1 is aligned with the pile hole in advance, and the first metal ring plate 4 at the top of the bottom pile 1 is still above the ground, then the top pile 2 is hoisted, the first metal ring plate 4 at the bottom of the top pile 2 is welded with the first metal ring plate 4 at the top of the bottom pile 1, then the bottom pile 1 and the top pile 2 are hammered into the hole, and the first metal ring plate 4 at the top of the top pile 2 is still above the ground, then the composite pile frame 3 is inserted into the bottom pile 1 and the top pile 2, the length of the composite pile frame 3 is greater than the length of the top pile 2, so that the cement poured from the second metal ring plate 31 in the bottom pile 1 and the top pile 2 forms a more reliable pile body, and the connection strength of the bottom pile 1 and the top pile 2 is increased, at this time, the cement mortar poured in the bottom pile 1 and the top pile 2 flows out of the first through hole 14, mixes with the soil layer, and forms a cement ring layer between the first conical rings 13, which increases the resistance to the soil layer and improves the pullout resistance of the pile body.

[0032] The above merely describes a preferred embodiment of the present application, and the design concept of the present application is not limited thereto, and any person skilled in the art, within the technical scope disclosed by the present application, can make non-essential changes to the present application using the concept, and such changes shall be deemed to fall within the protection scope of the present application.

Claims

1. A cement mixing composite pile with anti-pulling, comprising a bottom pile (1), a top pile (2) and a composite pile frame (3), characterized in that, The top of the bottom pile (1) is welded with the top pile (2), the top of the top pile (2) is welded with the composite pile frame (3), and the composite pile frame (3) extends into the top pile (2) and the bottom pile (1); The bottom pile (1) comprises a bottom pile body (11), a bottom pile drill (12), a first conical ring (13) and a first through hole (14), a plurality of first through holes (14) are annularly arranged on the lower side of the bottom pile body (11), the first through holes (14) are inclined outward at an angle of 45 degrees, and the bottom and the middle of the bottom pile body (11) are provided with the first conical ring (13). The top pile (2) comprises a top pile body (21), a second conical ring (22) and a second through hole (23), a plurality of second through holes (23) are annularly arranged on the lower side of the top pile body (21), the second through holes (23) are inclined outward at an angle of 45 degrees, and the bottom and the middle of the top pile body (21) are provided with the second conical ring (22).

2. The anti-pulling cement mixing composite pile according to claim 1, characterized in that, The bottom pile drill (12) is made of metal in a conical shape, a first metal ring plate (4) is arranged above the bottom pile drill (12) at intervals, and a plurality of first threaded steel bars (5) are welded between the bottom pile drill (12) and the first metal ring plate (4).

3. The anti-pulling cement mixing composite pile according to claim 2, characterized in that, A plurality of first threaded steel bars (5) are reinforced by a spiral hoop (6), so that the plurality of first threaded steel bars (5) are poured with cement to form a cylindrical sleeve-shaped bottom pile body (11).

4. The anti-pulling cement mixing composite pile according to claim 1, characterized in that, The top and bottom ends of the top pile body (21) are provided with first metal ring plates (4), and a plurality of first threaded steel bars (5) are welded and connected between the two first metal ring plates (4), and the plurality of first threaded steel bars (5) are reinforced and connected by a spiral hoop (6), so that the plurality of first threaded steel bars (5) are poured with cement to form a cylindrical sleeve-shaped top pile body (21).

5. The anti-pulling cement mixing composite pile according to claim 1, characterized in that, The composite pile frame (3) comprises a second metal ring plate (31), a second threaded steel bar (32), a ring hoop (33) and a triangular steel frame (34), and a plurality of second threaded steel bars (32) are annularly welded at the lower end of the second metal ring plate (31).

6. The anti-pulling cement mixing composite pile according to claim 5, characterized in that, A plurality of ring hoops (33) are bound to a plurality of second threaded steel bars (32) for reinforced connection, and a plurality of triangular steel frames (34) are welded at the lower part of each second threaded steel bar (32).

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