CN217231801U - A enlarge pile shoe and pile sinking construction equipment for pile body dead weight hammering construction - Google Patents
A enlarge pile shoe and pile sinking construction equipment for pile body dead weight hammering construction Download PDFInfo
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- CN217231801U CN217231801U CN202220621911.6U CN202220621911U CN217231801U CN 217231801 U CN217231801 U CN 217231801U CN 202220621911 U CN202220621911 U CN 202220621911U CN 217231801 U CN217231801 U CN 217231801U
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Abstract
The utility model discloses an enlarge pile shoe for pile shaft dead weight hammering construction belongs to the construction equipment field. The enlarged pile shoe comprises an enlarged pile shoe body and a pile pad, wherein the enlarged pile shoe body comprises a shoe tip, a central fixing column and a peripheral fixing ring, a circular ring surface is formed between the central fixing column and the peripheral fixing ring on the top plane of the shoe tip, and the pile pad is laid on the circular ring surface and used for supporting the pile bottom end surface of the prestressed pipe pile; the pre-buried pipeline used for grouting a pile side channel between the prestressed pipe pile and the pile periphery layering soil is arranged in the expansion pile shoe body, an inlet of the pre-buried pipeline is arranged on the top surface of the central fixing column, outlets of the pre-buried pipeline are multiple, and the pre-buried pipeline is evenly distributed on the top surface of the periphery fixing ring. The striking process of the utility model is under the ground, so the construction noise can be well controlled; and the height of the hoisting machine for lifting the pile can be adjusted, and the pile falling stroke can be corrected according to the geological condition of the current pile sinking depth, so that the pile sinking efficiency is higher.
Description
Technical Field
The utility model belongs to the construction equipment field, concretely relates to enlarge pile shoe and construction equipment for pile body dead weight hammering construction.
Background
With the continuous development of pile foundation engineering, the prestressed pipe pile has been increasingly applied in site construction due to the advantages of high construction speed, high efficiency, short construction period, high bearing capacity of single pile after pile forming, reliable quality and the like. However, in the pile sinking process, construction process difficulties such as obvious soil squeezing effect, difficult soil layer penetration and the like still exist, so that important attention needs to be paid to the pile sinking construction process.
At present, the construction process of the domestic main prestressed pipe pile comprises the following steps: hammering, static pressure, vibration, etc., among which hammering pile sinking method, static pressure pile sinking method is most commonly used. The hammering method is suitable for most foundations, but the diesel hammer is violent in vibration and large in noise during pile driving and cannot meet the requirements of urban construction, static pressure pile sinking is only suitable for homogeneous plastic viscous soil foundations, meanwhile, the hammering method and the static pressure method have obvious soil squeezing effects, have certain influence on surrounding buildings and underground pipelines, have high requirements for bearing capacity of an equipment platform, and need to carry out pretreatment on the area of the equipment platform on soft foundations. Therefore, it is desirable to provide a pile sinking apparatus with low noise, low requirement for equipment platform, and high construction efficiency.
Disclosure of Invention
An object of the utility model is to solve the problem that exists among the prior art to a enlarge pile shoe and construction equipment for pile shaft dead weight hammering construction is provided.
The utility model discloses the concrete technical scheme who adopts as follows:
in a first aspect, the utility model provides an enlarged pile shoe for pile body dead weight hammering construction, which comprises an enlarged pile shoe body and a pile pad;
the enlarged pile shoe body comprises a shoe tip, a central fixing column and a peripheral fixing ring, the tip of the shoe tip is used for being penetrated into a soil body, the central fixing column and the peripheral fixing ring are coaxially fixed on the top plane of the shoe tip, and the central fixing column is located in the center of the top plane of the shoe tip and used for being inserted into a pile bottom opening of the prestressed pipe pile in a matched mode; the periphery fixing ring surrounds the periphery of the top plane of the shoe tip and is used for being matched with and sleeving the bottom of the side wall of the pile body of the prestressed pipe pile; the top plane of the shoe tip forms a circular ring surface between the central fixing column and the peripheral fixing ring, and the pile pad is laid on the circular ring surface and used for supporting the pile bottom end face of the prestressed pipe pile;
the pre-buried pipeline used for grouting a pile side channel between the prestressed pipe pile and the pile periphery layering soil is arranged in the expansion pile shoe body, an inlet of the pre-buried pipeline is formed in the top surface of the central fixing column, a plurality of outlets of the pre-buried pipeline are uniformly distributed on the top surface of the periphery fixing ring.
Preferably, the inlet of the embedded pipeline is connected with a pipeline connecting piece, and the pipeline connecting piece is used for connecting a hollow guide rod for external grouting.
Preferably, the pile pad is circular.
Preferably, the thickness of the peripheral fixing ring is not less than 5 cm, and the height is not less than 50 cm.
Preferably, the radius of the central fixing column is not less than 5 cm, and the height of the central fixing column is not less than 80 cm.
Preferably, the prestressed pipe pile, the central fixing column and the peripheral fixing ring form clearance fit.
In a second aspect, the present invention provides a pile sinking construction equipment for pile body dead weight hammering construction, which comprises an enlarged pile shoe, a lifting device, a guide pile frame, a lifter, a hollow guide rod and a pile top connecting piece, wherein the enlarged pile shoe, the lifting device, the guide pile frame, the lifter, the hollow guide rod and the pile top connecting piece are arranged in any one of the first aspect; the pile top connecting piece is fixedly arranged on the pile top of the prestressed pipe pile, a lifting rope penetrates through the elevator, one end of the lifting rope is connected with the pile top connecting piece, and the other end of the lifting rope is connected with the lifting equipment; the hoisting equipment is used for hoisting the prestressed pipe pile;
the entrance of the embedded pipeline in the enlarged pile shoe is connected with a hollow guide rod arranged in the inner cavity of the prestressed pipe pile, and the top of the hollow guide rod extends out of the top end of the prestressed pipe pile.
The guide pile frame is provided with a guide channel for the penetration of the prestressed pipe pile and is used for guiding the prestressed pipe pile in the vertical sinking process.
Preferably, the hoisting device is a winch.
Preferably, the hollow guide rod is formed by splicing a plurality of hollow rod sections one by one.
Preferably, the hollow guide rod is connected with an external grouting device.
Compared with the prior art, the utility model, following beneficial effect has:
the utility model discloses in provide an enlarge pile shoe for pile body dead weight hammering construction, this enlarge pile shoe can be used for the cooperation to realize the pile body dead weight hammering construction's pile sinking construction equipment. Based on the pile sinking construction equipment with the enlarged pile shoe, the prestressed pipe pile can fall after the prestressed pipe pile is lifted to reach the preset height, and the pile sinking purpose is realized by means of the dead weight of the prestressed pipe pile. The construction equipment has the advantages that the requirements of the construction site on the construction site are greatly reduced, the problems that the pile driver falls into the ground, the narrow pile driver in the site cannot enter the site and the like are solved. Moreover, because the enlarged pile shoe is adopted, a gap exists between the wall of the tubular pile and the soil layer, pile sinking resistance is greatly reduced, and the super-static hole pressure of soil can be released in time in the gap between pile soil during pile driving, so that the consolidation of the pile side soil is accelerated; and cement paste is poured into gaps among the pile soils subsequently, so that the bearing capacity of the single pile can be improved by increasing the strength of the cement paste. In addition, in the utility model, the striking process is performed below the ground, and the construction noise can be well controlled; and the height of the lifting pile of the winch can be adjusted, namely, the pile falling stroke can be corrected according to the geological condition of the current pile sinking depth, so that the pile sinking efficiency is higher. Therefore, the utility model discloses the requirement to the equipment platform is not high, and equipment platform bearing capacity generally need not carry out special treatment, and all recoverable after the construction is accomplished, has good economic benefits.
Drawings
FIG. 1 is a schematic view of an enlarged pile shoe for self-weight hammering construction of a pile body;
fig. 2 is a schematic structural diagram of pile sinking construction equipment for pile body self-weight hammering construction.
The reference numbers in the figures are: the pile shoe comprises an enlarged pile shoe body 1, a pre-buried pipeline 2, a pile pad 3, a pipeline connecting piece 4, a prestressed pipe pile 5, a pile side channel 6, pile periphery layering soil 7, hoisting equipment 8, a guide pile frame 9, an elevator 10, a hollow guide rod 11 and a pile top connecting piece 12.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention. The utility model discloses technical characteristics in each embodiment are under the prerequisite that does not conflict each other, all can carry out corresponding combination.
In the description of the present invention, it will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be indirectly connected to the other element, i.e., intervening elements may be present. In contrast, when an element is referred to as being "directly connected" to another element, there are no intervening elements present.
In a preferred embodiment of the present invention, an enlarged shoe for self-weight hammering construction of pile body is provided, which comprises an enlarged shoe body 1 and a pile pad 3.
The structure of the enlarged pile shoe body 1 can be divided into three parts of a shoe tip, a central fixing column and a peripheral fixing ring, but in consideration of the actual manufacturing process, the whole enlarged pile shoe body 1 is integrally formed and does not need to be processed separately and then assembled. The boot tip is a tip-shaped structure with the bottom in an inverted cone shape, and the top surface of the boot tip is a flat circular plane. The tip of the boot tip is used for penetrating into the soil body, and the top plane is used for bearing the central fixing column and the peripheral fixing ring. The fixed ring coaxial fixation of center fixed column and periphery is on the top plane of boots point, wherein: the central fixing column is positioned in the center of the top plane of the shoe tip, is of a cylindrical structure and is used for being inserted into a pile bottom opening of the prestressed pipe pile 5 in a matching manner; the periphery fixing ring surrounds the periphery of the top plane of the shoe tip and is a hollow cylinder with a certain thickness and used for being matched with and sleeved at the bottom of the side wall of the pile body of the prestressed pipe pile 5. The top plane of the shoe tip is clamped between the central fixing column and the peripheral fixing ring to form a circular ring surface, and the pile pad 3 is laid on the circular ring surface and used for supporting the pile bottom end face of the prestressed tubular pile 5.
When the enlarged pile shoe body 1 is used, the enlarged pile shoe body 1 can be sleeved at the pile bottom end part of the prestressed pipe pile 5, the bottom opening of the pile body is clamped into the central fixing column, and the outer wall of the pile bottom after the pile body is clamped into the central fixing column is just encircled by the peripheral fixing ring, so that the prestressed pipe pile 5 is integrally supported on the enlarged pile shoe body 1. It should be noted, however, that the installation between the prestressed pipe pile 5 and the enlarged shoe body 1 is a detachable form, and not a tight fixation, that is, the prestressed pipe pile 5 can be detached from the enlarged shoe body 1 when receiving a lifting force.
Additionally, the utility model discloses in, because the solid fixed ring's of periphery external diameter will be greater than the external diameter of stress tube stake 5 in expanding stake shoe body 1, consequently when stress tube stake 5 sinks to the soil body along with expanding stake shoe body 1 in, stress tube stake 5 and stake periphery layering can form the clearance of certain thickness between the soil body, stake side passageway 6 promptly. When the pile side channel 6 appears, in order to reduce the friction force between the pile body of the prestressed pipe pile 5 and the layer soil 7 around the pile, the pile sinking efficiency is improved. Simultaneously, fill through carrying out the slip casting to this stake side passageway 6, can also further reduce stake side frictional resistance when pile sinking, and wait to pile and accomplish the thick liquid solidification and can increase pile foundation bearing capacity again. Therefore, for the convenience of carrying out the slip casting to stake side passageway 6, the utility model discloses well need be offered in expanding pile shoe body 1 and be used for carrying out the buried pipeline 2 of slip casting to stake side passageway 6 between prestressed pipe pile 5 and the stake week layering soil 7, wherein buried pipeline 2 has an entry and a plurality of export, and buried pipeline 2's entry is seted up on the top surface of central fixed column, and buried pipeline 2's a plurality of exports evenly distributed is on the solid fixed ring's of periphery top surface. And cement slurry can be injected from the hollow guide rod 11 under the action of hammering, the slurry injected from the inlet of the embedded pipeline 2 can overflow from different outlets, and is diffused from the pile end to the pile side to fill the pile side channel 6, so that the prestressed pipe pile 5 and the layered soil 7 around the pile can be tightly combined, and the sinking of the pile body in the using process is reduced.
The utility model discloses in, pile pad 3 can be a plurality of dispersions, also can be a holistic ring shape, the utility model discloses well preferred ring shape is full to spread on whole anchor ring as far as possible, can cushion the impact force that produces when the pile body of prestressing force tubular pile strikes pile shoe, protects tubular pile body and enlarges pile shoe.
In addition, in order to facilitate the connection between the inlet end of the embedded pipeline 2 and the external grouting pipeline, a pipeline connecting piece 4 can be arranged at the inlet of the embedded pipeline 2, one end of the pipeline connecting piece 4 is connected with the air inlet end of the embedded pipeline 2, and the other end of the pipeline connecting piece is connected with a hollow guide rod 11 for inputting grouting slurry from the outside. The two ends of the pipeline connecting piece 4 can be in threaded fit with the inlet of the embedded pipeline 2 and the hollow guide rod 11 by arranging threads.
For the convenience of connection, the embedded pipeline 2 can be made of stainless steel corrugated pipes, so that the embedded pipeline has good engineering seismic performance and air tightness, and smooth drainage in the piling process is guaranteed.
In addition, the prestressed pipe pile 5 will lift up a certain distance when receiving the lifting force applied by the external lifting device, so as to generate enough kinetic energy during the falling process to drive the enlarged pile shoe body 1 into the soil body, and therefore a certain separation will be generated between the prestressed pipe pile 5 and the enlarged pile shoe body 1. In order to avoid the prestressed pipe pile 5 from completely separating from the enlarged pile shoe body 1, the heights of the peripheral fixing ring and the central fixing column, especially the height of the central fixing column, need to be adjusted, so that the prestressed pipe pile 5 cannot separate from the enlarged pile shoe body 1 when the required lifting height is met. Meanwhile, the thickness of the peripheral fixing ring can directly influence the size of a gap between the pile body of the prestressed tubular pile 5 and a peripheral soil body, and the small gap can cause large side friction resistance to the pile body and can block the up-and-down movement of the prestressed tubular pile 5. The utility model discloses in, the solid fixed ring's of periphery thickness is preferred to be set up to be not less than 5 centimetres, highly is not less than 50 centimetres. Meanwhile, the radius of the central fixing column is preferably set to be not less than 5 cm, and the height is preferably set to be not less than 80 cm.
In addition, the solid fixed ring clearance between 5 and central fixed column of prestressing force tubular pile and the periphery should not too big yet to can satisfy freely between the two and reciprocate as the standard the utility model discloses well preferred control prestressing force tubular pile 5 constitutes clearance fit between solid fixed ring and the solid fixed ring of central fixed column and periphery. In this way, part of air in a relatively closed space is used as buffer when the prestressed tubular pile 5 falls down and collides with the pile shoe, so that construction noise can be well controlled, and meanwhile, damage to a pile body structure is reduced.
In addition, as shown in fig. 2, the utility model discloses in based on the above-mentioned enlarged pile shoe that is used for pile body dead weight hammering construction, still provide a pile sinking construction equipment that pile body dead weight hammering was under construction, it includes that fig. 1 is shown enlarged pile shoe and lifts by crane equipment 8, guide pile frame 9, elevator 10, cavity guide arm 11 and pile bolck connecting piece 12. Wherein the enlarged pile shoe is assembled at the bottom end of the prestressed pipe pile 5, i.e. the position a in fig. 2. The pile top connecting piece 12 is fixedly installed on the pile top of the prestressed pipe pile 5, and the form is not limited, and can be realized by adopting a detachable hoop or other fastening devices. A lifting rope penetrates through the elevator 10, one end of the lifting rope is connected with the pile top connecting piece 12, the other end of the lifting rope is connected with the lifting equipment 8, and therefore the prestressed pipe pile 5 can be lifted through the lifting equipment 8. The utility model provides a lifting rope can adopt the rope that satisfies the strength requirement wantonly, preferably adopts steel strand wires. The hoisting equipment 8 can adopt a winch and also can adopt other equipment such as a truck crane, a tower crane and the like.
In addition, the inlet of the embedded pipeline 2 in the enlarged pile shoe is connected with a hollow guide rod 11 arranged in the inner cavity of the prestressed tubular pile 5, and the top of the hollow guide rod 11 extends out of the top end of the prestressed tubular pile 5. The hollow guide rod 11 preferably adopts an assembled structure, is formed by splicing a plurality of hollow rod sections section by section, and can add the hollow rod sections section by section according to the depth of the pile sinking so as to meet the construction requirement. The hollow guide rods 11 should be made of a material capable of withstanding the pressure generated during the grouting process, and the connection positions between the hollow rod sections should have good water tightness. One end of the hollow guide rod 11 extending out of the pile top can be connected with external grouting equipment.
In addition, the guide pile frame 9 is provided with a guide channel for the penetration of the prestressed pipe pile 5, and is used for guiding the prestressed pipe pile 5 in the vertical sinking process when being erected on the ground. In this embodiment, the guide pile frame 9 is a sleeve with a top having an inner diameter slightly larger than the outer diameter of the tubular pile and a certain height, and a lower part standing by a support structure such as a tripod.
When the pile sinking construction equipment for pile body dead weight hammering construction is used, the hoisting equipment 8 can hoist the prestressed pipe pile 5 to enable the prestressed pipe pile to penetrate through the guide pile frame 9 and be assembled in the enlarged pile shoe to be in place, the shoe tip of the enlarged pile shoe supports against the foundation, then the prestressed pipe pile 5 is lifted to a certain height through the hoisting equipment 8 and then falls freely, the enlarged pile shoe is hammered by utilizing the dead weight of the prestressed pipe pile 5, so that impact force is applied to the prestressed pipe pile 5, and the pile sinking verticality is controlled by the guide pile frame 9 in the pile sinking process. The method of sinking the pile by depending on the self weight of the pile body greatly reduces the requirement on the construction site, and is not easy to cause the problems that the pile driver falls into the ground, the pile driver in a narrow site cannot enter and the like. And after the pile end of the prestressed pipe pile 5 enters the ground surface, the impact process of the pipe pile occurs below the ground, and the construction noise can be well controlled.
Because the utility model discloses the impact force of well hammering comes from this process of releasing after the certain height is reached to the lifting and pulling of prestressing force tubular pile at the hoist engine, consequently can squeeze into the degree of depth according to the tubular pile design and change the lifting height, and then adjustment hammering power. Height control accessible elevator 10 realizes, and elevator 10 relative hollow guide rod position can be adjusted, and elevator 10 height can be adjusted according to required pile sinking power, adjusts the pile height that falls promptly, makes it to wear different geological conditions soil layer down. The utility model discloses the advantage in overlength tubular pile work progress is more obvious, can divide into a plurality of stake sections with overlength tubular pile, progressively carries out pile sinking operation.
The above-mentioned embodiments are merely a preferred solution of the present invention, but it is not intended to limit the present invention. Various changes and modifications can be made by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present invention. Therefore, all the technical schemes obtained by adopting the mode of equivalent replacement or equivalent transformation fall within the protection scope of the utility model.
Claims (10)
1. An enlarged pile shoe for pile body dead weight hammering construction is characterized by comprising an enlarged pile shoe body (1) and a pile pad (3);
the enlarged pile shoe body (1) comprises a shoe tip, a central fixing column and a peripheral fixing ring, the tip of the shoe tip is used for being penetrated into a soil body, the central fixing column and the peripheral fixing ring are coaxially fixed on the top plane of the shoe tip, and the central fixing column is located in the center of the top plane of the shoe tip and used for being inserted into a pile bottom opening of the prestressed pipe pile (5) in a matched mode; the periphery fixing ring surrounds the periphery of the top plane of the shoe tip and is used for being matched with and sleeving the bottom of the pile body side wall of the prestressed pipe pile (5); the top plane of the shoe tip forms a circular ring surface between the central fixing column and the peripheral fixing ring, and the pile pad (3) is flatly laid on the circular ring surface and used for supporting the pile bottom end face of the prestressed pipe pile (5);
expand and set up in pile shoe body (1) and be used for carrying out the buried pipeline (2) of slip casting to stake side passageway (6) between prestressing force tubular pile (5) and the stake week layering soil (7), the entry of buried pipeline (2) is seted up in on the top surface of central fixed column, the export of buried pipeline (2) has a plurality ofly, evenly distributed in on the solid fixed ring's of periphery top surface.
2. The enlarged pile shoe for self-weight hammering construction of pile body according to claim 1, wherein the inlet of the embedded pipe (2) is connected with a pipe connector (4), and the pipe connector (4) is used for connecting with a hollow guide rod (11) for external grouting.
3. An enlarged pile shoe for self weight hammering of pile shaft as claimed in claim 1 wherein said pile pad (3) is annular.
4. The enlarged shoe for pile body deadweight hammering construction of claim 1, wherein said peripheral retaining ring has a thickness of not less than 5 cm and a height of not less than 50 cm.
5. The enlarged pile shoe for pile body deadweight hammering construction of claim 1, wherein said central fixing post has a radius of not less than 5 cm and a height of not less than 80 cm.
6. The enlarged pile shoe for self-weight hammering of pile body according to claim 1, wherein said prestressed pipe pile (5) is in clearance fit with the central fixing column and the peripheral fixing ring.
7. Pile sinking construction equipment for pile body dead weight hammering construction is characterized by comprising the enlarged pile shoe as claimed in any one of claims 1 to 6, hoisting equipment (8), a guide pile frame (9), a lifter (10), a hollow guide rod (11) and a pile top connecting piece (12); the pile top connecting piece (12) is fixedly arranged on the pile top of the prestressed pipe pile (5), a lifting rope penetrates through the elevator (10), one end of the lifting rope is connected with the pile top connecting piece (12), and the other end of the lifting rope is connected with the lifting equipment (8); the hoisting equipment (8) is used for hoisting the prestressed pipe pile (5);
the inlet of the embedded pipeline (2) in the enlarged pile shoe is connected with a hollow guide rod (11) arranged in the inner cavity of the prestressed tubular pile (5), and the top of the hollow guide rod (11) extends out of the top end of the prestressed tubular pile (5);
the guide pile frame (9) is internally provided with a guide channel for the penetration of the prestressed pipe pile (5) and is used for guiding the prestressed pipe pile (5) in the vertical sinking process when erected on the ground.
8. The pile sinking construction equipment for pile body self-weight hammering construction according to claim 7, wherein the hoisting equipment (8) is a winch.
9. The pile sinking construction equipment for self weight hammering of pile body according to claim 7, wherein said hollow guide rod (11) is formed by splicing a plurality of hollow rod segments one by one.
10. The pile sinking construction equipment for self weight hammering of pile body according to claim 7, wherein said hollow guide rod (11) is connected to an external grouting equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220621911.6U CN217231801U (en) | 2022-03-21 | 2022-03-21 | A enlarge pile shoe and pile sinking construction equipment for pile body dead weight hammering construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220621911.6U CN217231801U (en) | 2022-03-21 | 2022-03-21 | A enlarge pile shoe and pile sinking construction equipment for pile body dead weight hammering construction |
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| Publication Number | Publication Date |
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| CN217231801U true CN217231801U (en) | 2022-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220621911.6U Active CN217231801U (en) | 2022-03-21 | 2022-03-21 | A enlarge pile shoe and pile sinking construction equipment for pile body dead weight hammering construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217231801U (en) |
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2022
- 2022-03-21 CN CN202220621911.6U patent/CN217231801U/en active Active
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