CN218373814U

CN218373814U - A protect a structure for stake hole dado

Info

Publication number: CN218373814U
Application number: CN202222197468.7U
Authority: CN
Inventors: 徐建骁; 雷羽; 毕俊翔; 任东兴; 何蕃民
Original assignee: CREEC Chengdu Survey Design and Research Co Ltd
Current assignee: CREEC Chengdu Survey Design and Research Co Ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2023-01-24
Anticipated expiration: 2032-08-22

Abstract

The utility model belongs to the technical field of the stake hole is strutted, a protect a section of thick bamboo structure for stake hole dado is disclosed, hang the outlying cavity of pile body after getting in order to solve current steel and protect a section of thick bamboo and adopt the upper portion to penetrate the soil body and backfill and reduced the bearing capacity's of pile body problem. The utility model discloses an urceolus and inner tube, the inner tube cover is established in the inside of urceolus, the thickness of urceolus is greater than the thickness of inner tube, the peripheral cover of the hypomere of inner tube is equipped with the end plate, the urceolus is the big little round platform form of lower extreme in upper end, the external diameter of urceolus bottom is the same with the external diameter of end plate top, seted up two relative arc walls that set up along the vertical direction of urceolus on the urceolus, the arc wall runs through the urceolus along the direction of height of urceolus.

Description

A protect a structure for stake hole dado

Technical Field

The utility model belongs to the technical field of the stake hole is strutted, concretely relates to a protect a section of thick bamboo structure for stake hole dado for carry out the dado to the stake hole.

Background

When the pile foundation adopts a process of digging into a hole and pouring a pile in a rotating mode, the phenomenon of concrete pouring and over-pouring is caused frequently due to geological condition problems, manual operation problems and the like, and the over-pouring phenomenon is also called as a filling coefficient. The concrete filling coefficient is the ratio of the actual concrete volume poured into a pile to the theoretical volume calculated according to the outer diameter of the pile (Virginian/Virginian). In the actual construction process, the deviation of pore-forming is larger than the design size, and the actual pouring amount is larger than the theoretical calculation amount due to the possible occurrence of cracks, holes, hole collapse and the like on the side wall of the pile body in the construction process.

Particularly, in high backfill areas with short site backfill time and thick-layer clay and sandy soil areas, large pore wall holes, pore wall collapse and the like often occur, the filling coefficient of some high backfill sites almost reaches 1.8 (for example, the theoretical concrete amount of a pile with the length of 20m and the diameter of 800mm is 3.14 x 0.4 x 20=10.048 square; and the actual pouring amount is close to 18 square, so that the concrete waste accounts for about 80%).

The measures in the prior art for reducing the filling coefficient (reducing the concrete filling amount) are as follows: and after the pile hole is led, a steel pile casing is implanted to solve the problem of high filling coefficient caused by factors such as collapse and the like. For example: pile holes with a diameter of 800mm are often implanted with steel casing with a wall thickness of 14-18 mm.

However, this method has the following technical problems:

(1) The steel casing has high cost, and if the steel casing is not taken out, the construction cost is increased sharply.

(2) Because the outer diameter of the steel casing is larger than the inner diameter of the pile hole, if the steel casing is taken out, a cavity is formed on the outer surface of the concrete. When taking out the steel casing, constructor among the prior art generally can directly pour into the soil body from the upper portion and backfill, but because the size of cavity is less, lead to the backfill thing to fall the difficulty and make filling quality relatively poor, and then reduced the stiction between soil body and the pile body to the bearing capacity of pile body has been reduced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pile casing structure for pile hole dado, which aims to solve the problem that the bearing capacity of the pile body is reduced because the upper part of the cavity at the periphery of the pile body is filled with soil by penetrating into the upper part after the existing steel casing is hung, on one hand, the steel casing can be recycled, thereby reducing the construction cost; on the other hand, when the steel casing is taken out of the pile hole, the cavity can be filled from bottom to top, filling quality is improved, and bearing capacity of the pile body is improved.

For solving the technical problem, the utility model discloses the technical scheme who adopts is:

the utility model provides a protect a section of thick bamboo structure for stake hole dado, a serial communication port, including urceolus and inner tube, the inside at the urceolus is established to the inner tube cover, the thickness of urceolus is greater than the thickness of inner tube, the peripheral cover of the hypomere of inner tube is equipped with the end plate, the urceolus is the round platform form of the big lower extreme in upper end, the urceolus external diameter the lowest is the same with the external diameter of end plate top, seted up two relative arc walls that set up along the vertical direction of urceolus on the urceolus, the arc wall runs through the urceolus along the direction of height of urceolus.

In some embodiments, the circumferential wall of the outer barrel is provided with a plurality of through holes communicated with the arc-shaped grooves, the through holes are obliquely formed in the outer barrel, and the through holes are obliquely and downwardly arranged along the direction from the outer barrel to the inner barrel.

In some embodiments, two stirring rods corresponding to the arc-shaped grooves in position are arranged on the end plate.

In some embodiments, the end plate is in a truncated cone shape with a large upper end and a small lower end.

In some embodiments, the outer barrel is provided with a lifting lug at the periphery of the top part thereof for lifting the outer barrel.

In some embodiments, the outer circumferential wall of the inner barrel is provided with an anticorrosive coating.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses a protect a section of thick bamboo structure for stake hole dado is in the use, with the steel protect a section of thick bamboo (including urceolus and inner tube) squeeze into the soil body together after, treat to pour into the concrete in the inside section of thick bamboo after the stake hole shaping, treat after concrete in the inner tube (be the downthehole concrete of stake) initial set, alright rise with being used for external equipment on one side drive the urceolus, it is rotatory to drive the urceolus on one side, and pour into the backfill in the arc wall to the urceolus, thereby can enough take out the urceolus, realize the cyclic recovery utilization of urceolus, reach the purpose that reduces construction cost. And the utility model discloses a backfill upwards fills gradually from the lower part of cavity (the back is extracted to the urceolus promptly, cavity between inner tube and the soil body), has avoided leading to the poor problem of filling quality because the cavity blocks up, and then ensures that the urceolus extracts the back, and the soil body contact that the inner tube can be filled, and then improves the bearing capacity of improvement pile body.

The outer cylinder is provided with a plurality of through holes which are mutually communicated with the arc-shaped groove, and certain water can be injected into the arc-shaped groove in advance through the through holes, so that the water can be immersed into soil around the outer cylinder through the through holes to play a certain lubricating role; and the outer cylinder of the utility model is in the shape of a round table with a large upper end and a small lower end, and the mutual combination of the upper end and the lower end can also reduce the difficulty of hanging and taking the outer cylinder.

The utility model discloses a set up two puddlers that correspond to each other with the arc wall on the end plate, when the urceolus is hanging the in-process of getting, the urceolus rotates to hang and gets along the mode of clockwise rotation half circle-anticlockwise rotation half circle-clockwise rotation half circle under the effect of external hoisting equipment, makes the backfill can enough fill up the cavity along the circumferencial direction, can utilize the puddler to carry out certain stirring to the arc wall simultaneously again, makes the backfill blanking more even; and can not block the arc-shaped groove, improve the utility model discloses a practicality.

The utility model discloses a be provided with the anticorrosive coating on the circumference wall of inner tube, because the urceolus inner wall is smooth, the straightness accuracy is good, can not destroy the anticorrosive coating on the inner tube outer wall when hanging and get the urceolus to make the anticorrosive coating on the inner tube outer wall can not destroyed, in order to satisfy some areas and to protect the use that a section of thick bamboo has anticorrosive requirement.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic top view of the outer barrel of the present invention;

FIG. 3 is a schematic cross-sectional view of the outer barrel of the present invention;

the labels in the figure are: 1. the outer cylinder 2, the inner cylinder 3, the end plate 4, the arc-shaped groove 5, the stirring rod 6, the lifting lug 7 and the through hole.

Detailed Description

The present invention will be further described with reference to the following examples, which are only some, but not all, of the examples of the present invention. Based on the embodiments in the present invention, other embodiments used by those skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood in combination with the specific situation.

Combine the attached drawing, the utility model discloses a protect a structure for stake hole dado, including urceolus 1 and

inner tube

2, 2 covers of inner tube are established in the inside of urceolus 1, the thickness of urceolus 1 is greater than the thickness of inner tube 2, the peripheral cover of the hypomere of inner tube 2 is equipped with end plate 3, urceolus 1 is the big round platform form of lower extreme in the upper end, urceolus 1 external diameter the bottom is the same with the external diameter of end plate 3 the top, urceolus 1 is gone up and has been seted up two relative arc wall 4 that set up along the vertical direction of urceolus, arc wall 4 runs through urceolus 1 along the direction of height of urceolus.

In some embodiments, the circumferential wall of the outer cylinder 1 is provided with a plurality of through holes 7 mutually communicated with the arc-shaped grooves, the through holes 7 are obliquely formed on the outer cylinder 1, and the through holes 7 are obliquely and downwardly arranged along the direction from the outer cylinder 1 to the inner cylinder 2.

In some embodiments, two stirring rods 5 are mounted on the end plate 3 and correspond to the arc-shaped slots. The preferred volume, the puddler adopt the reinforcing bar preparation to form, and the puddler lug weld can on the end plate.

The utility model discloses a puddler 5 can enough improve the whereabouts homogeneity of backfill, prevents that the backfill from blockking up in the arc wall of urceolus, after the urceolus is hung out, the puddler can regard as the tie point between backfill and the inner tube simultaneously for improve the stability of inner tube (because the concrete in the inner tube is in the initial set state), prevent that the urceolus from extracting the condition that the inner tube appears the slope, improve the quality of becoming the stake.

In some embodiments, the end plate 3 is in the shape of a circular truncated cone with a large upper end and a small lower end, so that the end plate can cut soil and penetrate into the soil conveniently.

In some embodiments, the outer cylinder 1 is provided with a lifting lug 6 at the top periphery thereof for lifting the outer cylinder.

In some embodiments, the outer circumferential wall of the inner cylinder 2 is provided with an anticorrosive coating. In some areas, the requirement is provided for the anticorrosive coating of the steel casing, and when the steel casing in the prior art is driven into the soil body, the friction between the steel casing and the soil body can damage the anticorrosive coating. And the utility model discloses a anticorrosive coating on the inner tube can be avoided damaging to the guard action of urceolus.

The utility model discloses a protect a section of thick bamboo structure for stake hole dado is in the use, with the steel protect a section of thick bamboo (including urceolus and inner tube) squeeze into the soil body together after, treat after the stake hole shaping to pour into the concrete in the inner tube into, treat after concrete in the inner tube (be the downthehole concrete of stake) initial set, alright in order to be used for external equipment on one side to drive the urceolus and rise, it is rotatory to drive the urceolus on one side, and pour into the backfill into in the arc wall to the urceolus, thereby can enough take out the urceolus, realize the cyclic recovery of urceolus and utilize, reach the purpose that reduces construction cost. And the utility model discloses a backfill upwards fills gradually from the lower part of cavity (the back is extracted to the urceolus promptly, cavity between inner tube and the soil body), has avoided leading to the poor problem of filling quality because the cavity blocks up, and then ensures that the urceolus extracts the back, and the soil body contact that the inner tube can be filled, and then improves the bearing capacity of pile body.

The utility model discloses a set up two puddlers that correspond to each other with the arc wall on the end plate, when the urceolus is hanging the in-process of getting, the urceolus rotates to hang and gets along the mode of clockwise rotation half circle-anticlockwise rotation half circle-clockwise rotation half circle under the effect of external hoisting equipment, makes the backfill can enough fill up the cavity along the circumferencial direction, can utilize the puddler to carry out certain stirring to the arc wall simultaneously again, makes the backfill blanking more even; and can not block up the arc wall, improve the utility model discloses a practicality.

Claims

1. The utility model provides a protect a section of thick bamboo structure for stake hole dado, a serial communication port, including urceolus and inner tube, the inside at the urceolus is established to the inner tube cover, the thickness of urceolus is greater than the thickness of inner tube, the peripheral cover of the hypomere of inner tube is equipped with the end plate, the urceolus is the round platform form of the big lower extreme in upper end, the urceolus external diameter the lowest is the same with the external diameter of end plate top, seted up two relative arc walls that set up along the vertical direction of urceolus on the urceolus, the arc wall runs through the urceolus along the direction of height of urceolus.

2. A pile casing structure according to claim 1, wherein the circumferential wall of the outer cylinder is provided with a plurality of through holes communicating with the arc-shaped grooves, the through holes are obliquely formed in the outer cylinder, and the through holes are obliquely downward along the direction from the outer cylinder to the inner cylinder.

3. A pile casing structure for a pile hole retaining wall as claimed in claim 1, wherein two agitator arms are mounted on the end plate at positions corresponding to the positions of the arc-shaped slots.

4. A pile casing structure for a pile hole retaining wall according to claim 1, wherein the end plate is in the shape of a truncated cone with a large upper end and a small lower end.

5. A pile casing structure for pile hole dado according to any of claims 1-4, characterized in that the top periphery of the outer cylinder is provided with a lifting lug for lifting the outer cylinder.

6. A pile casing structure for a pile hole casing according to claim 1, wherein the outer circumferential wall of the inner cylinder is provided with an anticorrosive coating.