CN110359447B - Pipe column - Google Patents
Pipe column Download PDFInfo
- Publication number
- CN110359447B CN110359447B CN201910647430.5A CN201910647430A CN110359447B CN 110359447 B CN110359447 B CN 110359447B CN 201910647430 A CN201910647430 A CN 201910647430A CN 110359447 B CN110359447 B CN 110359447B
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- Prior art keywords
- pipe column
- sliding block
- sliding
- block
- inner rod
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/48—Piles varying in construction along their length, i.e. along the body between head and shoe, e.g. made of different materials along their length
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/14—Geometrical or physical properties resilient or elastic
- E02D2200/146—Springs
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/16—Shapes
- E02D2200/1671—Shapes helical or spiral
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0001—Rubbers
Abstract
The invention belongs to the technical field of building materials, and particularly relates to a pipe column, wherein cavities which are uniformly distributed are arranged in the pipe column; an inner rod is arranged in the cavity; the surface of the inner rod is fixedly connected with first sliding blocks which are uniformly arranged; the inner rod and the first sliding block can slide in the cavity; a fixed block is arranged below each first sliding block; the fixed block is connected with the first sliding block through a spring; the side wall of the outer side of the pipe column is provided with a first sliding chute which is uniformly distributed; a telescopic block is arranged in the first sliding groove and is hinged with the inner rod through a connecting rod; a bulldozing plate is arranged in the pipe column; a second sliding groove is formed in the inner wall of the pipe column; a second sliding block is connected in the second sliding groove in a sliding manner; one end of the second sliding block is hinged with the first sliding block through a connecting rod, and the other end of the second sliding block extends out of the inner wall and is fixedly connected with a bulldozing plate in the pipe column; the invention has simple structure, can realize labor-saving operation and strengthen the fixing effect; convenient to use, the practicality is strong.
Description
Technical Field
The invention belongs to the technical field of building materials, and particularly relates to a pipe column.
Background
The pipe column is a short pipe section of steel, reinforced concrete or prestressed concrete prefabricated in a factory or a construction site, is lengthened in the construction site, is forced to sink into the soil by a vibration or torsional pendulum method, and simultaneously drills, digs or sucks mud in the pipe to reduce the sinking resistance. If the pipe column falls on the bedrock, the pipe wall can be used as a casing pipe for drilling, and then reinforced concrete is filled to anchor the pipe column to the bedrock so as to increase the stability and the supporting capability of the foundation. Or drilling a large-diameter hole in the stratum, inserting the prefabricated pipe column into the hole, and pressing cement mortar between the wall of the pipe column and the wall of the hole to tightly connect the pipe column and the soil layer so as to improve the bearing capacity. The pipe column can be filled with concrete or reinforced concrete, or even be made into a partial hollow body. The types of the pipe column foundation can be divided according to the supporting condition of foundation soil: if the pipe column passes through the soil layer and falls on or is embedded in the bedrock, the supporting force of the column mainly comes from the resistance of the rock layer at the column end, and the supporting pipe column foundation is called; if the lower end of the string does not reach the bedrock, the supporting force of the string is called a friction type or supporting and friction type string foundation, in which the frictional force from the side soil of the string and the resistance of the end soil of the string are simultaneously generated. If the foundation is a multi-column foundation, the classification can also be carried out according to the height of the bearing platform: when the bearing platform is positioned on the ground or below the surface of a river bed, the low bearing platform pipe column foundation is called; if the bearing platform is located on the ground or above the river bed surface, it is called a high bearing platform pipe column foundation. When the riverbed is scoured, the bearing platform is positioned above the lowest scour line and is calculated according to the design of the high bearing platform pipe column foundation. As the diameter of the pipe column is larger than 1.2 meters, the pipe column is still enough in rigidity even though being a high bearing platform foundation, and if no special requirement (such as overlarge horizontal force) exists, the pipe column is often adopted in bridge engineering so as to save labor and materials. Under the conditions of compact and uniform foundation and low pier, the bearing platform is even raised to the pier cap position of the pier, so that the pier body is omitted.
In the prior art, most of the currently used pipe columns have single structure and lower manufacturing cost, but have single function, and can only realize forced sinking into the soil by using a vibration or torsional pendulum method, and then fill reinforced concrete to anchor the pipe columns to the bedrock. And the tubular column among the prior art is very hard in the use engineering, and the ability of ramming the soil layer is general moreover, and fixed effect is general.
Disclosure of Invention
In order to make up for the defects of the prior art and solve the problems, the invention provides a tubular column. The invention is mainly used for solving the problems that the tubular column in the prior art is labor-consuming in use engineering, the soil layer tamping capacity is general, and the fixing effect is general.
The technical scheme adopted by the invention for solving the technical problems is as follows: a pipe column is provided with uniformly arranged cavities inside; an inner rod is arranged in the cavity, and one side of the inner rod is tightly attached to the side wall of the cavity; the surface of the inner rod is fixedly connected with a first sliding block which is uniformly arranged, and one side of the first sliding block is tightly attached to the inner wall of the cavity; the inner rod and the first sliding block can slide in the cavity; a fixed block is arranged below each first sliding block; the fixed block is fixedly connected with the inner wall of the cavity; the fixed block is connected with the first sliding block through a spring; the side wall of the outer side of the pipe column is provided with a first sliding chute which is uniformly distributed; a telescopic block is arranged in the first sliding groove and is hinged with the inner rod through a connecting rod; when the device works, a pipe column is impacted, an inner rod moves downwards due to the impact, the inner rod drives a telescopic block to contract towards the middle through a connecting rod in the process of moving downwards, so that the telescopic block is retracted, meanwhile, a spring between a first sliding block and a fixed block is compressed, the inner rod is pushed to move upwards by the spring in the process of restoring deformation, the inner rod pushes the telescopic block outwards through the connecting rod, and the telescopic block can push away soil around the pipe column, so that the aim of tamping a soil layer is fulfilled; on the other hand, the contact between the pipe column and the soil layer can be reduced after the soil around the pipe column is pushed away, so that the friction force can be reduced, the pipe column can move downwards more smoothly, and the working efficiency is improved; after the pipe column is completely inserted into the soil, the spring still has certain elasticity, and the spring can vibrate to drive the inner rod to move downwards, so that the whole pipe column can be inserted more deeply and firmly; when carrying out concrete placement, can strike interior pole gently for under the spring between slider and the fixed block can be in the state of vibration always, the vibration of pole in driving, interior pole can pass through the connecting rod and drive flexible piece, flexible piece can make a round trip to slide, plays the effect of vibrating pump, drives away the inside air of concrete, avoids the inside vacuole formation of concrete, can also strengthen the effect of binding of concrete and soil layer and tubular column, improves fixed effect.
Preferably, the bottom of the inner rod is of a conical structure; the bottom of the pipe column is of an arc-shaped structure, and the conical structure at the bottom of the inner rod and the arc-shaped structure at the bottom of the pipe column are beneficial to breaking a soil layer; during operation, the pipe column and the inner rod move downwards, the conical structure at the bottom of the inner rod and the arc-shaped structure at the bottom of the pipe column can help to better break the soil layer, meanwhile, the soil is extruded towards two sides, and the soil layer can be further tamped when the soil layer is broken.
Preferably, the surfaces of the telescopic blocks are provided with uniformly arranged protruding rods, and the design of the protruding rods is favorable for improving the fixing effect; when the telescopic block is in work, the inner rod pushes the telescopic block outwards through the connecting rod, the protruding rod can help to break the soil layer and tamp the soil layer more tightly; the soil layer can be inserted to the protruding pole, increases the area of contact with the soil layer, and after concrete placement, fixed effect can be better.
Preferably, a plurality of the expansion block is the heliciform on the tubular column surface, and when the expansion block was arranged in the spiral, the soil layer of pressing from both sides between the expansion block can be thicker for whole tubular column is in case inserted the soil layer and just is difficult to be extracted, has strengthened fixed effect.
Preferably, a bulldozing plate is arranged in the pipe column, and the design of the bulldozing plate is to tamp soil in the pipe column; a second sliding groove is formed in the inner wall of the pipe column between the first sliding block and the fixed block; a second sliding block is connected in the second sliding groove in a sliding manner; one end of the second sliding block, which is close to the cavity, is hinged with the first sliding block through a connecting rod; the other end of the second sliding block extends out of the second sliding groove and is fixedly connected with a bulldozing plate in the pipe column; the bottom of the bulldozer is of a conical structure; when the device works, the first sliding block pushes the second sliding block to move outwards through the connecting rod in the downward moving process, so that the bulldozing plate is pushed to extrude soil in the middle of the tamping pipe column; the conical structure at the bottom of the soil shifting plate can push away soil below the soil shifting plate while tamping a soil layer, so that the pipe column can move down conveniently.
Preferably, the rubber layer is wrapped on the surface of the bulldozer and is arranged in a manner of being mutually attached, and the design of the rubber layer is favorable for protecting the bulldozer and preventing the bulldozer from being damaged when the bulldozer is in contact extrusion; during operation, the soil in the tubular column is extruded to the centre by the bull-dozer board, can form the hollow layer in the middle of tubular column and the soil layer, and the hollow layer is used for pouring concrete to the inside, and the bull-dozer board surface covering has the rubber layer and hugs closely each other, can prevent that soil from getting into the hollow layer, influences fixed effect.
The invention has the following beneficial effects:
1. the pipe column can be realized by arranging the inner rod, the telescopic rod, the first sliding block, the fixed block and the spring, when the pipe column is impacted, the inner rod can move downwards due to the impact, the telescopic block can be driven by the connecting rod to contract towards the middle in the downward moving process of the inner rod, so that the telescopic block is retracted, meanwhile, the spring between the first sliding block and the fixed block is compressed, the inner rod can be pushed to move upwards by the spring in the deformation recovery process, the inner rod can push the telescopic block outwards by the connecting rod, and the telescopic block can push away soil around the pipe column, so that the aim of tamping a soil layer is fulfilled; on the other hand, the contact between the pipe column and the soil layer can be reduced after the soil around the pipe column is pushed away, so that the friction force can be reduced, the pipe column can move downwards more smoothly, and the working efficiency is improved; after the pipe column is completely inserted into the soil, the spring still has certain elasticity, and the spring can vibrate to drive the inner rod to move downwards, so that the whole pipe column can be inserted more deeply and firmly; when carrying out concrete placement, can strike interior pole gently for under the spring between slider and the fixed block can be in the state of vibration always, the vibration of pole in driving, interior pole can pass through the connecting rod and drive flexible piece, flexible piece can make a round trip to slide, plays the effect of vibrating pump, drives away the inside air of concrete, avoids the inside vacuole formation of concrete, can also strengthen the effect of binding of concrete and soil layer and tubular column, improves fixed effect.
2. According to the tubular column, the protruding rods are arranged, so that the protruding rods can help to break a soil layer and tamp the soil layer more tightly in the process that the inner rod pushes the telescopic blocks outwards through the connecting rods; the soil layer can be inserted to the protruding pole, increases the area of contact with the soil layer, and after concrete placement, fixed effect can be better.
3. According to the tubular column, soil in the tubular column can be extruded to the middle by the soil pushing plate through the soil pushing plate and the rubber layer, the hollow layer can be formed between the tubular column and the soil layer and is used for pouring concrete to the inner side, the rubber layer covers the surface of the soil pushing plate and is tightly attached to the surface of the soil pushing plate, and the soil can be prevented from entering the hollow layer to influence the fixing effect.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a front view of the present invention;
FIG. 2 is a cross-sectional view of a tubing string;
FIG. 3 is an enlarged view of a portion of FIG. 2 in accordance with the present invention;
FIG. 4 is a top plan view of FIG. 1 of the present invention;
in the figure: the cavity comprises a cavity 1, an inner rod 2, a first sliding block 3, a fixed block 4, a first sliding groove 5, a telescopic block 6, a convex block 7, a second sliding block 8, a bulldozer board 9, a rubber layer 10 and a second sliding groove 11.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 4, the tubular column of the present invention has uniformly arranged cavities 1; an inner rod 2 is arranged in the cavity 1, and one side of the inner rod 2 is tightly attached to the side wall of the cavity 1; the surface of the inner rod 2 is fixedly connected with a first sliding block 3 which is uniformly arranged, and one side of the first sliding block 3 is tightly attached to the inner wall of the cavity 1; the inner rod 2 and the first sliding block 3 can slide in the cavity 1; a fixed block 4 is arranged below each first sliding block 3; the fixed block 4 is fixedly connected with the inner wall of the cavity 1; the fixed block 4 is connected with the first sliding block 3 through a spring; the side wall of the outer side of the pipe column is provided with a first sliding chute 5 which is uniformly distributed; a telescopic block 6 is arranged in the first sliding groove 5, and the telescopic block 6 is hinged with the inner rod 2 through a connecting rod; when the device works, a pipe column is impacted, the inner rod 2 moves downwards due to the impact, the inner rod 2 drives the telescopic block 6 to contract towards the middle through the connecting rod in the process of moving downwards, so that the telescopic block 6 is retracted, meanwhile, the spring between the first sliding block 3 and the fixed block 4 is compressed, the spring can push the inner rod 2 to move upwards in the process of restoring deformation, the inner rod 2 can push the telescopic block 6 outwards through the connecting rod, and the telescopic block 6 can push away soil around the pipe column, so that the aim of tamping a soil layer is fulfilled; on the other hand, the contact between the pipe column and the soil layer can be reduced after the soil around the pipe column is pushed away, so that the friction force can be reduced, the pipe column can move downwards more smoothly, and the working efficiency is improved; after the pipe column is completely inserted into the soil, the spring still has certain elasticity, and the spring can vibrate to drive the inner rod to move downwards, so that the whole pipe column can be inserted more deeply and firmly; when carrying out concrete placement, can strike interior pole 2 gently for under the spring between slider 3 and the fixed block 4 can be in the state of vibration always, 2 vibrations in the drive, interior pole 2 can drive flexible piece 6 through the connecting rod, and flexible piece 6 can make a round trip to slide, plays the effect of vibrating pump, drives away the inside air of concrete, avoids the inside vacuole formation of concrete, can also strengthen the effect of binding of concrete and soil layer and tubular column, improves fixed effect.
As an embodiment of the invention, the bottom of the inner rod 2 is a conical structure; the bottom of the pipe column is of an arc-shaped structure, and the conical structure at the bottom of the inner rod 2 and the arc-shaped structure at the bottom of the pipe column are beneficial to breaking a soil layer; during operation, the pipe column and the inner rod 2 move downwards, the conical structure at the bottom of the inner rod 2 and the arc-shaped structure at the bottom of the pipe column can help to better break the soil layer, meanwhile, the soil is extruded towards two sides, and the soil layer can be further tamped when the soil layer is broken.
As an embodiment of the invention, the surface of the telescopic block 6 is provided with uniformly arranged protruding rods 7, and the design of the protruding rods 7 is beneficial to improving the fixing effect; when the soil-breaking-free type soil-compacting machine works, the inner rod 2 can help break a soil layer and compact the soil layer in the process of pushing the telescopic block 6 outwards through the connecting rod by the aid of the convex rod 7; the soil layer can be inserted to protruding pole 7, increases the area of contact with the soil layer, and after concrete placement, fixed effect can be better.
As an embodiment of the invention, the plurality of the telescopic blocks 6 are in a spiral shape on the surface of the pipe column, when the telescopic blocks 6 are arranged in a spiral shape, the soil layer clamped between the telescopic blocks 6 is thicker, so that the whole pipe column is difficult to pull out once being inserted into the soil layer, and the fixing effect is enhanced.
As an embodiment of the invention, a bulldozing plate 9 is arranged in the pipe column, and the bulldozing plate 9 is designed to tamp soil in the pipe column; a second sliding groove 11 is formed in the inner wall of the pipe column between the first sliding block 3 and the fixed block 4; a second sliding block 8 is connected in the second sliding groove 11 in a sliding manner; one end of the second sliding block 8, which is close to the cavity 1, is hinged with the first sliding block 3 through a connecting rod; the other end of the second sliding block 8 extends out of the second sliding groove and is fixedly connected with a bulldozing plate 9 in the pipe column; the bottom of the bulldozer blade 9 is of a conical structure; when the device works, the first sliding block 3 pushes the second sliding block 8 to move outwards through the connecting rod in the downward moving process, so that the soil pushing plate 9 is pushed to extrude soil in the middle of a tamping pipe column; the conical structure at the bottom of the soil shifting plate 9 can push away soil below the soil shifting plate 9 while tamping a soil layer, so that the pipe column can move down conveniently.
As an embodiment of the invention, the surface of the bulldozer blade 9 is wrapped by a rubber layer 10, the rubber layers 10 are arranged in a mutual clinging manner, and the design of the rubber layer 10 is favorable for protecting the bulldozer blade 9 and preventing the bulldozer blade 9 from being damaged when in contact extrusion; during operation, bull dozer 9 extrudees the centre with the soil in the tubular column, can form the hollow layer in the middle of tubular column and the soil layer, and the hollow layer is used for pouring concrete inwards, and bull dozer 9 surface covering has rubber layer 10 and hugs closely each other, can prevent that soil from getting into the hollow layer, influences fixed effect.
The specific working process is as follows:
when the pipe column is impacted, the inner rod 2 can downwards move due to the impact, the inner rod 2 can drive the telescopic block 6 to contract towards the middle through the connecting rod in the process of downwards moving, so that the telescopic block 6 is retracted, meanwhile, the spring between the first sliding block 3 and the fixed block 4 is compressed, the spring can push the inner rod 2 to upwards move in the process of restoring deformation, the inner rod 2 can outwards push the telescopic block 6 through the connecting rod, and the telescopic block 6 can push away soil around the pipe column, so that the effect of tamping a soil layer is achieved; on the other hand, the contact between the pipe column and the soil layer can be reduced after the soil around the pipe column is pushed away, so that the friction force can be reduced, the pipe column can move downwards more smoothly, and the working efficiency is improved; after the pipe column is completely inserted into the soil, the spring still has certain elasticity, and the spring can vibrate to drive the inner rod to move downwards, so that the whole pipe column can be inserted more deeply and firmly; when concrete is poured, the inner rod 2 can be lightly knocked, so that the spring between the first sliding block 3 and the fixed block 4 is always in a vibrating state to drive the inner rod 2 to vibrate, the inner rod 2 drives the telescopic block 6 through the connecting rod, and the telescopic block 6 slides back and forth to play a role of a vibrating pump to expel air in concrete, so that a cavity is prevented from being formed in the concrete, the bonding effect of the concrete, a soil layer and a pipe column can be enhanced, and the fixing effect is improved; in the process that the pipe column and the inner rod 2 move downwards, the conical structure at the bottom of the inner rod 2 and the arc-shaped structure at the bottom of the pipe column can help to better break the soil layer, meanwhile, the soil is extruded towards two sides, and the soil layer can be further tamped while being broken; in the process of moving downwards, the first sliding block 3 pushes the second sliding block 8 to move outwards through the connecting rod, so that the bulldozing plate 9 is pushed to extrude soil in the middle of the tamping pipe column; the conical structure at the bottom of the soil pushing plate 9 can push away soil below the soil pushing plate 9 while tamping a soil layer, so that the pipe column can move downwards conveniently; soil in the bull dozer board 9 will the tubular column extrudees the centre, can form the hollow layer in the middle of tubular column and the soil layer, and the hollow layer is used for pouring concrete inwards, and bull dozer board 9 surface covering has rubber layer 10 and hugs closely each other, can prevent that soil from getting into the hollow layer, influences fixed effect.
The front, the back, the left, the right, the upper and the lower are all based on the figure 2 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the invention facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A tubular string, characterized by: cavities (1) which are uniformly distributed are arranged in the pipe column; an inner rod (2) is arranged in the cavity (1), and one side of the inner rod (2) is tightly attached to the side wall of the cavity (1); the surface of the inner rod (2) is fixedly connected with first sliding blocks (3) which are uniformly arranged, and one side of each first sliding block (3) is tightly attached to the inner wall of the cavity (1); the inner rod (2) and the first sliding block (3) can slide in the cavity (1); a fixed block (4) is arranged below each first sliding block (3); the fixed block (4) is fixedly connected with the inner wall of the cavity (1); the fixed block (4) is connected with the first sliding block (3) through a spring; the side wall of the outer side of the pipe column is provided with a first sliding chute (5) which is uniformly distributed; a telescopic block (6) is arranged in the first sliding groove (5), and the telescopic block (6) is hinged with the inner rod (2) through a connecting rod.
2. A pipe string according to claim 1, wherein: the bottom of the inner rod (2) is of a conical structure; the bottom of the pipe column is of an arc-shaped structure.
3. A pipe string according to claim 1, wherein: the surface of the telescopic block (6) is provided with evenly distributed protruding rods (7).
4. A pipe string according to claim 1 or 3, wherein: the plurality of telescopic blocks (6) are spirally arranged on the surface of the pipe column.
5. A pipe string according to claim 1, wherein: a bulldozing plate (9) is also arranged in the pipe column; a second sliding groove (11) is formed in the inner wall of the pipe column between the first sliding block (3) and the fixed block (4); a second sliding block (8) is connected in the second sliding groove (11) in a sliding manner; one end of the second sliding block (8) close to the cavity (1) is hinged with the first sliding block (3) through a connecting rod; the other end of the second sliding block (8) extends out of the second sliding groove (11) and is fixedly connected with a bulldozing plate (9) in the pipe column; the bottom of the bulldozer blade (9) is of a conical structure.
6. A pipe string according to claim 5, wherein: the surface of the bulldozer board (9) is wrapped with a rubber layer (10), and the rubber layers (10) are arranged in a mutual clinging manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910647430.5A CN110359447B (en) | 2019-07-17 | 2019-07-17 | Pipe column |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910647430.5A CN110359447B (en) | 2019-07-17 | 2019-07-17 | Pipe column |
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| CN110359447A CN110359447A (en) | 2019-10-22 |
| CN110359447B true CN110359447B (en) | 2021-08-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111424655B (en) * | 2020-04-01 | 2021-05-14 | 中交投资项目管理有限公司 | Concrete embedded pile for reinforcing soft foundation |
| CN111424639A (en) * | 2020-04-01 | 2020-07-17 | 潘本建 | Gauze granular pile structure for foundation treatment of soft soil and sandy soil foundation |
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| CN1710215A (en) * | 2005-06-09 | 2005-12-21 | 清华大学 | Side downhole soil-extruded foundation treating method and horizontal extruding-spreading device |
| CN205100880U (en) * | 2015-10-25 | 2016-03-23 | 湖北中阔岩土机械化工程有限公司 | Crowded counterboring machine is dug soon to horizontal application of force formula |
| CN207934025U (en) * | 2017-10-08 | 2018-10-02 | 武汉汇智通达科技有限公司 | A kind of Bridge Pile position inner wall tamping unit |
| CN207794069U (en) * | 2018-01-26 | 2018-08-31 | 方玲 | A kind of civil construction stake having anti-offset Anti-inclining effect |
| CN208981310U (en) * | 2018-06-21 | 2019-06-14 | 湖北宸远建设有限公司 | A kind of road and bridge crater wall tamping unit |
| CN208996024U (en) * | 2018-09-24 | 2019-06-18 | 杨维华 | A kind of waterwork foundation pile structure |
| CN109469074A (en) * | 2018-10-26 | 2019-03-15 | 中铁二院成都勘察设计研究院有限责任公司 | A kind of cutting slope defending structure and its construction method |
| CN109914433A (en) * | 2019-04-15 | 2019-06-21 | 陈林 | A kind of foundation pit supporting method and raked pile |
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Effective date of registration: 20210730 Address after: 570000 west of Longtan highway, Yangting village, Longquan Town, Haikou City, Hainan Province Applicant after: Hainan Zhongzheng pipe pile Co.,Ltd. Address before: 230000 Room 204, building B, Xijia, GuoXuan K, intersection of West 2nd Ring Road and Wangjiang West Road, Shushan District, Hefei City, Anhui Province Applicant before: Zhou Chen |
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