CN219825233U - Miniature bored concrete pile protects a section of thick bamboo festival and steel and protects a section of thick bamboo - Google Patents

Abstract

The utility model discloses a miniature cast-in-place pile casing section and a steel casing, wherein a drainage structure is arranged at the top of the casing section, so that slurry and concrete overflowed from the top of the steel casing can be led into a slurry pond through the drainage structure, the slurry and the concrete are prevented from overflowing to the surface of a pile to pollute the environment, and the cleaning difficulty is reduced; the bottom of this section of thick bamboo festival is provided with first connection structure, and another section of thick bamboo festival top rather than adjacent is provided with second connection structure, and both can reduce the manufacturing degree of difficulty of protecting the section of thick bamboo festival through the connection of buckling mode detachable to make and protect the manufacturing and the installation effectiveness of section of thick bamboo festival, and make each section of thick bamboo festival turnover use, reduce the material extravagant.

Description

Miniature bored concrete pile protects a section of thick bamboo festival and steel and protects a section of thick bamboo

Technical Field

The utility model relates to the technical field of pile foundation engineering, in particular to a miniature cast-in-place pile casing section and a steel casing.

Background

The miniature bored pile is a bored pile with smaller diameter, the diameter is generally 10-40 cm, the slenderness ratio is generally more than 30, and the pile body consists of cement mortar poured by pressure or small stone concrete and stiffening materials. In the construction process of the miniature bored concrete pile, a pile casing is generally adopted to fix the pile position, guide the drilling direction, prevent the collapse of the orifice and the hole wall through mud circulation, and ensure the construction quality of the miniature bored concrete pile.

However, in the mud circulation and concrete pouring processes, as the top of the pile casing is not provided with a corresponding drainage device, mud and concrete at the top of the pile casing are easy to overflow from the top of the pile casing to the ground surface around the pile position irregularly, so that the surrounding environment of the pile position is polluted, and the cleaning difficulty is increased to a certain extent.

The length of the pile section is usually 2m, the pile section is required to be lengthened to meet construction requirements at certain pile positions, when the pile section is lengthened, the existing miniature filling pile section is usually connected in a threaded or welding mode, the threaded connection mode is required to be provided with mutually matched threads at the contact part of the two pile sections, the length of the threads is required to be lengthened for enabling the two pile sections to be stably connected, and the manufacturing difficulty of the pile section is increased due to the fact that the threaded mode is provided on the pile section; when the welding mode is adopted for connection, the two pile casing sections are not easy to align, slurry or concrete is easy to leak due to the problem of welding quality, and the construction quality of the miniature cast-in-place pile is affected; and the pile casing section after welding can only be used for specific construction occasions, and turnover construction can not be performed, so that material waste is caused.

Disclosure of Invention

At least one of the purposes of the utility model is to provide a miniature cast-in-place pile casing section and a steel casing aiming at overcoming the problems existing in the prior art, and the drainage structure at the top of the casing section can prevent slurry or concrete at the top of the casing section from overflowing to the ground surface around a pile position, reduce the cleaning difficulty and prevent environmental pollution; two sections of adjacent protection cylinder sections are connected in a buckling mode, so that the manufacturing difficulty of the protection cylinder sections can be reduced, and the manufacturing and mounting efficiency of the protection cylinder sections can be improved.

In order to achieve the above object, the present utility model adopts a technical scheme including the following aspects.

A miniature bored pile casing section comprising: the pile casing comprises a pile casing body, wherein a first pulp overflow hole is formed in the pile casing body close to the top surface, a drainage structure is arranged in the pile casing body close to the first pulp overflow hole, and the drainage structure is arranged on the outer side face of the pile casing body.

Preferably, the drainage structure comprises a pulp overflow groove, the pulp overflow groove comprises an outer wall and a bottom wall, one or more second pulp overflow holes are formed in the outer wall, and drainage plates are arranged at the second pulp overflow holes.

Preferably, an inner cylinder is arranged in the pulp overflow groove, a through hole is arranged on the inner cylinder, and the inner cylinder can rotate in the pulp overflow groove.

Preferably, the second pulp overflow hole is a strip-shaped hole, the second pulp overflow hole is circumferentially arranged on the outer wall, a strip-shaped groove is further vertically arranged on the outer wall, and the strip-shaped groove is communicated with the second pulp overflow hole; the drainage plate is arranged at the position of the through hole through the strip-shaped groove and can rotate in the second pulp overflow hole.

Preferably, the included angle between the drainage plate and the plane where the top of the outer wall is positioned is 5-30 degrees.

Preferably, the drainage plate is of a U-shaped, mouth-shaped or tubular structure.

Preferably, the pile casing main body is rolled by a steel plate with the thickness of 8-10 mm, the diameter of the pile casing main body is 30-50 cm, and the apertures of the first pulp overflow holes and the second pulp overflow holes are 10cm.

The miniature cast-in-place pile steel casing is characterized by comprising any one of the miniature cast-in-place pile casing sections, wherein the casing section is connected with the adjacent other section of casing section; the bottom of the pile casing main body of the miniature filling pile casing section is provided with a first connecting structure, the top of another section of the pile casing section adjacent to the section of the pile casing section is provided with a second connecting structure matched with the first connecting structure, and the first connecting structure and the second connecting structure are detachably connected in a buckling mode.

Preferably, the whole cylindric structure that is of first connection structure, circumference is provided with a plurality of bar passageway on the inner wall of first connection structure, still be provided with annular rotation groove on the inner wall of first connection structure, bar passageway intercommunication rotation groove, the rotation groove divide into upper and lower two parts with first connection structure, the second connection structure passes the bar passageway, rotates in the rotation groove.

Preferably, the second connecting structure is a clamping buckle, the whole cross section of the second connecting structure is rectangular, and a clamping groove is formed in the clamping buckle; the surface of the rotating groove, which is close to the top of the cylinder, is provided with a groove; the groove and the strip-shaped channel are separated by a certain distance on the same circumference, and the shape of the groove corresponds to the shape of the clamping buckle.

In summary, due to the adoption of the technical scheme, the utility model has at least the following beneficial effects:

through set up first thick liquid hole in protecting a section of thick bamboo main part top to set up drainage structures in first thick liquid hole department, can lead the mud or the concrete that overflow of concrete top in the mud pit of digging, avoid polluting the environment, reduced the clearance degree of difficulty simultaneously.

The drainage structure comprises a pulp overflow groove, a second pulp overflow hole is formed in the outer wall of the pulp overflow groove, and a drainage plate is obliquely arranged at the second pulp overflow hole, so that overflowed pulp can be smoothly discharged through the drainage plate; the inner barrel capable of rotating in the pulp overflow groove is further arranged in the pulp overflow groove, the through hole is formed in the inner barrel, the drainage plate is arranged at the position of the through hole of the inner barrel, the drainage plate rotates in the second pulp overflow hole, the position of the drainage plate can be flexibly adjusted, the drainage plate corresponds to the position of the mud pit, and therefore the installation and positioning difficulty of a cylinder protection section is reduced.

Through setting up first connection structure in the section of thick bamboo festival bottom, with another section of thick bamboo festival top that this section of thick bamboo festival is adjacent set up second connection structure, first connection structure can dismantle with second connection structure through the buckle mode and be connected, can make each section of thick bamboo festival turnover use, reduce the material extravagant.

Drawings

Fig. 1 is a schematic view of a first miniature bored pile casing section according to an exemplary embodiment of the present utility model.

Fig. 2 is a schematic view of a second miniature bored pile casing section according to an exemplary embodiment of the present utility model.

Fig. 3 is a schematic view of a third miniature bored pile casing section according to an exemplary embodiment of the present utility model.

Fig. 4 is a schematic view of a fourth miniature bored pile casing section according to an exemplary embodiment of the present utility model.

Fig. 5 is a schematic view of a fifth miniature bored pile casing section according to an exemplary embodiment of the present utility model.

Fig. 6 is a schematic structural view of two adjacent miniature bored concrete pile casing sections according to an exemplary embodiment of the present utility model after they are connected.

The marks in the figure are as follows: 1-casing main body, 11-first pulp overflow hole, 2-pulp overflow groove, 21-outer wall, 22-bottom wall, 23-second pulp overflow hole, 24-drainage plate, 25-inner cylinder, 26-through hole, 3-first connection structure, 31-bar channel, 32-rotation groove, 33-groove, 4-second connection structure, 41-draw-in groove.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, so that the objects, technical solutions and advantages of the present utility model will become more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Fig. 1 shows a miniature cast-in-place pile casing section structure according to an exemplary embodiment of the present utility model, the casing section includes a casing main body 1, a first slurry overflow hole 11 is provided at a position of the casing main body 1 near the top surface, the first slurry overflow hole 11 is a circular through hole, a drainage structure is provided at a position of the casing main body 1 near the first slurry overflow hole 11, the drainage structure is provided on an outer side surface (a side surface far from a center of the casing main body) of the casing main body 1, and the drainage structure is used for guiding slurry or concrete overflowed from the first slurry overflow hole 11 into a dug slurry pool, preventing slurry or concrete from overflowing from the top of the casing to the ground surface around a pile position, reducing the difficulty of cleaning slurry, and avoiding environmental pollution. The drainage structure is a U-shaped plate-shaped structure or a mouth-shaped circular tubular structure, and is made of the same material as the pile casing main body 1, so that the drainage structure is welded at the first pulp overflow hole 11 of the pile casing main body 1.

Referring to fig. 2, the drainage structure comprises a slurry overflow tank 2 with an annular structure, wherein the slurry overflow tank 2 comprises an outer wall 21 and a bottom wall 22, the side surface of the bottom wall 22, which is far away from the center of a circle, is vertically connected with the outer wall 21, and the side surface of the bottom wall 22, which is close to the center of the circle, is connected with a casing main body 1 in a welding mode; the bottom wall 22 is separated from the first slurry overflow hole 11 by a certain distance, and the top surface height of the outer wall 21 is not greater than the top surface height of the casing main body 1; the outer wall 21 is provided with a second pulp overflow hole 23, and the second pulp overflow hole 23 can be a circular through hole or a strip through hole; the second grout holes 23 have a lower height than the first grout holes 11 so that the grout or concrete smoothly flows out of the second grout holes 23; the second pulp overflow hole 23 is provided with a drainage plate 24, and the drainage plate 24 is connected with the second pulp overflow hole 23 in a welding mode. When the slurry or concrete overflowed from the top of the pile casing flows into the slurry overflow tank 2, the slurry or concrete is discharged into the excavated slurry pond through the second slurry overflow holes 33 and the drainage plates 24 on the slurry overflow tank 2.

In the course of the casing section, since the pile is located at a distance from the mud pit, a conduit can be connected to the drainage plate 24, through which overflowed mud or concrete is led into the mud pit. The outer wall 21 can be provided with a plurality of second slurry overflow holes 23 uniformly in the circumferential direction, when the slurry or concrete overflows at a high speed, overflowed parts flow out through the plurality of second slurry overflow holes 23 respectively, so that the slurry or concrete discharging speed is increased, and the slurry or concrete is prevented from overflowing to the ground surface around the pile position. The second slurry overflow holes 23 can also be circumferentially and uniformly arranged on the bottom wall 22, and in the process of the casing transportation, the second slurry overflow holes 23 and the drainage plates 24 are positioned on the bottom wall 22, so that the abrasion deformation of the drainage plates 24 can be prevented, and the slurry or concrete can smoothly flow out.

The drainage plate 24 is a U-shaped plate, baffles are arranged on the two sides of the bottom plate of the drainage plate in the length direction, the baffles and the bottom plate form a U-shaped structure, and the baffles can prevent slurry or concrete from overflowing from the drainage plate 24; the drainage plates 24 may also be provided in a mouth-shaped or circular tubular configuration; the included angle between the drainage plate 24 and the plane of the top of the outer wall 21 is 5-30 degrees, and the drainage plate and the outer wall 21 of the drainage groove are inclined at a certain angle, so that overflowed slurry or concrete can be guided into a slurry pool. When the steel casing of fig. 1 is adopted, the included angle between the drainage structure and the plane of the top of the casing body 1 is also 5-30 degrees.

Referring to fig. 3, when the position of the second slurry overflow hole of the shroud ring does not correspond to the position of the slurry pond, in order to increase the flexibility of drainage and reduce the positioning difficulty in the installation process of the shroud ring, an inner cylinder 25 capable of rotating in the slurry overflow groove 2 is arranged in the slurry overflow groove 2, a through hole 26 is arranged on the wall of the inner cylinder 25, and a drainage plate 24 is arranged at the position of the through hole 26. The second pulp overflow holes 23 are strip-shaped holes, and are circumferentially arranged on the outer wall 21; the outer wall 21 is also vertically provided with a strip-shaped groove, the strip-shaped groove is communicated with the second pulp overflow hole 23, and when the inner cylinder 25 is installed, the drainage plate 24 is lowered to the second pulp overflow hole 23 through the strip-shaped groove, so that the inner cylinder 25 is installed in the pulp overflow groove 2, and the drainage plate 24 rotates in the second pulp overflow hole 23.

After the cylindrical shell section is installed, when the position of the drainage plate 24 does not correspond to the position of the mud pit, the drainage plate 24 can be rotated, so that the inner cylinder 25 and the drainage plate 24 rotate in the overflow trough 2, and the position of the drainage plate 24 corresponds to the position of the mud pit. The mode can reduce the installation difficulty of the pile casing, so that the position of a mud pit is not needed to be considered in the installation process of the pile casing, and the problem that the construction site is disordered and the drilling construction is affected due to the drainage mode of the guide pipe is avoided. In order to increase the rotation range of the drainage plates 24, the two through holes 36 and the two drainage plates 24 may be respectively and oppositely disposed on the inner cylinder 25, and the two second slurry overflow holes 33 and the two strip-shaped grooves may be respectively and oppositely disposed on the outer wall 31.

The steel casing is rolled by a steel plate with the thickness of 8-10 mm, the diameter of the steel casing is 30-50 cm, and the thickness of the steel casing is preferably 10mm and the diameter of the steel casing is preferably 50cm in the use process; when the inner cylinder is not arranged in the overflow slurry tank, the aperture of the first overflow slurry hole 11 and the aperture width of the second overflow slurry hole 23 are preferably 10cm, the aperture width of the second overflow slurry hole 23 can be larger than the aperture of the first overflow slurry hole 11, and when the slurry flows into the overflow slurry tank, the slurry can be discharged through the second overflow slurry hole 23; when the inner cylinder is arranged in the pulp overflow groove, the width of the second pulp overflow hole 23 is larger than the width of the drainage plate 24, so that the drainage plate 24 rotates along the second pulp overflow hole 23.

Referring to fig. 5 and 6, a first connection structure 3 is further provided at the bottom of the casing body 1 (fig. 5 only shows the bottom structure of the casing section, the top structure is not shown; for convenience of observation, the casing section is shown in an inverted state), a second connection structure 4 matched with the first connection structure 3 is provided at the top of another casing section adjacent to the casing section, and the first connection structure 3 and the second connection structure 4 are detachably connected in a fastening manner, so that each section of casing can be used in a turnover manner, and material waste is reduced. When the pile casing section is used for the pile top part, the top of the pile casing main body 1 is provided with a drainage device, and the bottom is provided with a first connecting structure; when the pile casing section is used for the middle part of the pile body, the top of the pile casing main body 1 is provided with a second connecting structure, and the bottom is provided with a first connecting structure; when the pile casing section is used for the pile bottom part, the top of the pile casing main body 1 is provided with a second connecting structure, and the bottom is not provided with a connecting structure.

Referring to fig. 4, the second connection structure 4 is a clip, and the overall cross-section of the second connection structure is rectangular, and a clip slot 41 is formed in the clip; referring to fig. 5, the first connection structure 3 is a cylindrical structure with a wall thickness of 20-40 mm, the first connection structure 3 is welded at the bottom of the casing body 1 by welding, and the inner diameter of the cylinder is equal to the outer diameter of the casing body 1; referring to fig. 5, a plurality of strip-shaped channels 31 are circumferentially arranged on the inner wall of the first connection structure 3, and the width of the strip-shaped channels 31 corresponds to the width of the clamping buckles, so that the clamping buckles slide into the first connection structure 3 from the strip-shaped channels 31; the inner wall of the first connecting structure 3 is also provided with a circular rotating groove 32, the rotating groove 32 is slightly larger than the width of the clamping buckle, so that the clamping buckle can rotate in the rotating groove 32, and the strip-shaped channel 31 is communicated with the rotating groove 32; the rotating groove 32 divides the first connecting structure 3 into an upper part and a lower part, a groove 33 is arranged on the surface of the rotating groove 32 close to the top of the cylinder, the groove 33 and the strip-shaped channel 31 are separated by a certain distance on the same circumference, and the shape of the groove 33 corresponds to the shape of the clamping buckle, so that the clamping buckle is clamped into the groove 33, and the connection between the first connecting structure 3 and the second connecting structure 4 is realized.

The first connection structure 3 and the second connection structure 4 are connected by aligning the first section of protection tube with the second section of protection tube (the protection tube near the pile top is the first section of protection tube, the protection tube below the pile top is the second section of protection tube), aligning the strip-shaped channel 31 with the clamping buckle position and pushing in, enabling the rotating groove 32 to contact with the clamping buckle, rotating the first section of protection tube, and pushing the first section of protection tube to enable the clamping buckle to be clamped into the groove 33 when rotating to the position of the groove 33 to correspond to the clamping buckle position; because the clamping buckle is clamped into the groove 33, when the two pile casing sections are positioned at the pile position, the two pile casing sections cannot rotate relatively, so that the drilling construction is facilitated; when the two sections of protection cylinder sections are separated, the first section of protection cylinder section is pulled to separate the clamping buckle from the groove 33, the first section of protection cylinder section is rotated towards the original opposite direction, and when the first section of protection cylinder section is rotated to the position of the clamping buckle corresponding to the position of the strip-shaped channel 31, the first section of protection cylinder section is pulled out to separate the two sections of protection cylinder section.

The foregoing is a detailed description of specific embodiments of the utility model and is not intended to be limiting of the utility model. Various alternatives, modifications and improvements will readily occur to those skilled in the relevant art without departing from the spirit and scope of the utility model.

Claims (7)

1. A miniature bored pile casing section, characterized by comprising: the pile casing comprises a pile casing main body (1), wherein a first pulp overflow hole (11) is formed in the pile casing main body (1) close to the top surface, a drainage structure is arranged in the pile casing main body (1) close to the first pulp overflow hole (11), and the drainage structure is arranged on the outer side surface of the pile casing main body (1); the drainage structure comprises a pulp overflow groove (2), the pulp overflow groove (2) comprises an outer wall (21) and a bottom wall (22), one or more second pulp overflow holes (23) are formed in the outer wall (21), and a drainage plate (24) is arranged at the second pulp overflow holes (23); an inner cylinder (25) is arranged in the pulp overflow groove (2), a through hole (26) is formed in the inner cylinder (25), and the inner cylinder (25) can rotate in the pulp overflow groove (2); the second pulp overflow holes (23) are strip-shaped holes, the second pulp overflow holes are circumferentially arranged on the outer wall (21), strip-shaped grooves are further vertically formed in the outer wall (21), and the strip-shaped grooves are communicated with the second pulp overflow holes (23); the drainage plate (24) is arranged at the position of the through hole (26) through a strip-shaped groove and can rotate in the second pulp overflow hole (23).

2. The miniature bored pile casing section according to claim 1, wherein an included angle between the drainage plate (24) and a plane on which the top of the outer wall (21) is located is 5-30 degrees.

3. Miniature bored pile casing section according to claim 1 or 2, characterized in that the drainage plate (24) is of U-shaped, mouth-shaped or tubular construction.

4. The miniature bored pile casing section according to claim 1 or 2, wherein the casing main body (1) is formed by rolling a steel plate with the thickness of 8-10 mm, the diameter of the steel plate is 30-50 cm, and the apertures of the first grout overflow hole (11) and the second grout overflow hole (23) are 10cm.

5. A miniature bored pile steel casing comprising a miniature bored pile casing section as defined in any one of claims 1 to 4, said casing section being connected to an adjacent further section of casing section; the miniature bored concrete pile protects the bottom of a section of thick bamboo main part (1) of section of thick bamboo and is provided with first connection structure (3), protects section of thick bamboo section top with another section of thick bamboo that this section protects the section of thick bamboo and is provided with second connection structure (4) with first connection structure (3) matched with, first connection structure (3) can dismantle with second connection structure (4) through the buckle mode and be connected.

6. The miniature bored concrete pile steel casing according to claim 5, wherein the first connecting structure (3) is integrally a cylindrical structure, a plurality of strip-shaped channels (31) are circumferentially arranged on the inner wall of the first connecting structure (3), a circular rotating groove (32) is further arranged on the inner wall of the first connecting structure (3), the strip-shaped channels (31) are communicated with the rotating groove (32), the rotating groove (32) divides the first connecting structure (3) into an upper part and a lower part, and the second connecting structure (4) penetrates through the strip-shaped channels (31) and rotates in the rotating groove (32).

7. The miniature bored pile steel casing according to claim 6, wherein the second connecting structure (4) is a clamping buckle, the overall cross-section shape of the second connecting structure is rectangular, and a clamping groove (41) is arranged on the clamping buckle; a groove (33) is formed in the surface, close to the top of the cylinder, of the rotating groove (32); the grooves (33) and the strip-shaped channels (31) are separated from each other by a certain distance on the same circumference, and the shapes of the grooves (33) correspond to the shapes of the clamping buckles.