CN114673148B - Spliced variable-diameter rigid pile casing compaction pile - Google Patents
Spliced variable-diameter rigid pile casing compaction pile Download PDFInfo
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- CN114673148B CN114673148B CN202210428904.9A CN202210428904A CN114673148B CN 114673148 B CN114673148 B CN 114673148B CN 202210428904 A CN202210428904 A CN 202210428904A CN 114673148 B CN114673148 B CN 114673148B
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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
- E02D5/66—Mould-pipes or other moulds
- E02D5/665—Mould-pipes or other moulds for making piles
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
- E02D3/123—Consolidating by placing solidifying or pore-filling substances in the soil and compacting the soil
Abstract
The invention discloses a spliced variable-diameter rigid pile casing compaction pile which comprises a pile body and a pile casing sleeved outside the pile body, wherein the pile casing comprises a bottom casing, a middle casing and a top casing which are coaxially and sequentially connected, bottom casing fixing bolts are uniformly distributed in the annular direction of one end outer wall of the bottom casing, middle casing first fixing bolts are uniformly distributed in the annular direction of one end outer wall of the middle casing, middle casing second fixing bolts are uniformly distributed in the annular direction of one end outer wall of the middle casing, top casing fixing bolts are uniformly distributed in the annular direction of one end outer wall of the top casing, the bottom casing fixing bolts are connected with the middle casing first fixing bolts through a first connecting plate, the middle casing second fixing bolts are connected with the top casing fixing bolts through a second connecting plate, and the bottom casing, the middle casing and the top casing are all composed of a plurality of mutually spliced arc plates, so that the purposes of preventing the compaction pile body from being twisted and broken, improving the integrity of the pile body, improving the compaction effect and effectively reducing negative friction resistance can be achieved.
Description
Technical Field
The invention relates to the field of geotechnical engineering, in particular to a spliced variable-diameter rigid pile casing compaction pile.
Background
With the rapid development of social and economic construction of China, high-rise buildings and large municipal structures have more and more, the requirements on safety level are higher and more stringent, the requirements on the quality of foundation engineering are also higher and more, the pile foundation has become a main foundation form due to the advantages of good integrity, higher bearing capacity, stronger anti-overturning capacity, capability of effectively controlling foundation settlement and the like, and the traditional rigid pile foundation has higher pile body bearing capacity and rigidity, but has no obvious compaction effect on soil mass around the pile due to the limitation of pore-forming construction technology, and has no obvious effect on eliminating foundation wetability.
The compaction pile composite foundation can achieve the compaction effect required by engineering, is easy to obtain local materials, and is one of effective methods for reinforcing collapsible and other soft foundations above the groundwater level at present, however, engineering practice shows that when compaction pile composite foundations are adopted in collapsible loess, mixed filled soil, soft soil and various poor soil areas, the problems of uneven settlement of foundations, insufficient pile body bearing capacity, pile body fracture and the like exist at different degrees, and the problems are caused by the fact that: 1. the compaction pile is easy to generate necking or hole collapse when forming holes; 2. the uneven or non-compact compaction of the compaction pile body filler is a main cause of loosening and breaking of the pile body, negative friction on the compaction pile, necking, hole collapse, pile breakage, displacement and other problems of the compaction pile can cause insufficient bearing capacity of the composite foundation, yield and even damage of the composite foundation, and serious people can cause inclination, cracking and even collapse of an upper building, so that life and property safety of people can be seriously threatened.
Disclosure of Invention
Aiming at the problems, the invention provides the spliced variable-diameter rigid pile casing compaction pile which has the advantages of effectively reducing negative frictional resistance, improving the compaction effect of the semi-rigid pile on a soft foundation and overcoming the defects of pile breaking and bearing capacity.
The technical scheme of the invention is as follows:
the utility model provides a but spliced reducing rigidity pile casing compaction pile, includes pile body and the pile casing of cover outside the pile body, the pile casing includes coaxial continuous end section of thick bamboo, well section of thick bamboo and top section of thick bamboo in proper order, end section of thick bamboo axis direction is close to the annular direction of one end outer wall of well section of thick bamboo and all lays end section of thick bamboo fixing bolt, well section of thick bamboo axis direction is close to the first fixing bolt of well section of thick bamboo of one end outer wall annular direction equipartition corresponding to end section of thick bamboo fixing bolt of bottom section of thick bamboo, well section of thick bamboo axis direction is close to the annular direction of one end outer wall of top section of thick bamboo and equipartition corresponding to the top section of thick bamboo fixing bolt of thick bamboo of bottom section of thick bamboo, link to each other through first connecting plate between end section of thick bamboo fixing bolt and the first fixing bolt of well section of thick bamboo, link to each other through the second connecting plate between well section of thick bamboo second fixing bolt and the top section of thick bamboo fixing bolt, end section of thick bamboo, well section of thick bamboo, top section of thick bamboo structure are the same;
the top cylinder comprises a plurality of top cylinder arc inner plates and a plurality of top cylinder arc outer plates, wherein each top cylinder arc inner plate is provided with a top cylinder splicing convex strip at intervals along the top cylinder axis direction at one side of the cambered surface direction far away from the top cylinder axis, each top cylinder arc outer plate is provided with a top cylinder splicing groove corresponding to the top cylinder splicing convex strip at intervals along the top cylinder axis direction at one side of the cambered surface direction facing the top cylinder axis, the top cylinder splicing convex strips are in sliding connection with the top cylinder splicing grooves, and a plurality of top cylinder arc inner plates are spliced with a plurality of top cylinder arc outer plates to form a cylinder;
the middle cylinder comprises a plurality of middle cylinder arc inner plates and a plurality of middle cylinder arc outer plates, wherein middle cylinder splicing convex strips are arranged on one side, far away from a middle cylinder axis, of each middle cylinder arc inner plate along the middle cylinder axis direction at intervals, middle cylinder splicing grooves corresponding to the middle cylinder splicing convex strips are arranged on one side, facing the middle cylinder axis, of each middle cylinder arc outer plate along the middle cylinder axis direction at intervals, the middle cylinder splicing convex strips are in sliding connection with the middle cylinder splicing grooves, and the middle cylinder arc outer plates are spliced into cylinders with the plurality of middle cylinder arc outer plates;
the bottom cylinder comprises a plurality of bottom cylinder arc inner plates and a plurality of bottom cylinder arc outer plates, wherein each bottom cylinder arc inner plate is provided with a bottom cylinder splicing convex strip along the bottom cylinder axis direction at a side interval of the cambered surface direction away from the bottom cylinder axis, each bottom cylinder arc outer plate is provided with a bottom cylinder splicing groove corresponding to the bottom cylinder splicing convex strip along the bottom cylinder axis direction at a side interval of the cambered surface direction facing the bottom cylinder axis, the bottom cylinder splicing convex strips are in sliding connection with the bottom cylinder splicing grooves, and the bottom cylinder arc outer plates are spliced into a cylinder with a plurality of bottom cylinder arc outer plates.
The one end that top section of thick bamboo arc planking is close to middle section of thick bamboo connects top section of thick bamboo location bolt, the one end that middle section of thick bamboo arc planking is close to top section of thick bamboo is connected the well section of thick bamboo location slot that corresponds top section of thick bamboo location bolt, the one end that middle section of thick bamboo arc planking is close to bottom section of thick bamboo is connected well section of thick bamboo location bolt, the one end that bottom section of thick bamboo arc planking is close to middle section of thick bamboo is connected the bottom section of thick bamboo location slot that corresponds well section of thick bamboo location bolt.
The top cylinder splicing groove is provided with a first sliding ball along the sliding direction of the top cylinder splicing groove, the middle cylinder splicing groove is provided with a second sliding ball along the sliding direction of the middle cylinder splicing groove, and the bottom cylinder splicing groove is provided with a third sliding ball along the sliding direction of the bottom cylinder splicing groove.
The first sliding ball, the second sliding ball and the third sliding ball are cylindrical balls.
A spliced variable-diameter rigid pile casing compaction pile is constructed by the following steps of;
s1, prefabricating a bottom cylinder, a middle cylinder and a top cylinder, wherein a plurality of top cylinder arc inner plates, a plurality of top cylinder arc outer plates, a plurality of middle cylinder arc inner plates, a plurality of middle cylinder arc outer plates, a plurality of bottom cylinder arc inner plates and a plurality of bottom cylinder arc outer plates are prefabricated;
s2, assembling a plurality of top cylinder arc inner plates and a plurality of top cylinder arc outer plates into a top cylinder, assembling a plurality of middle cylinder arc inner plates and a plurality of middle cylinder arc outer plates into a middle cylinder, and assembling a plurality of bottom cylinder arc inner plates and a plurality of bottom cylinder arc outer plates into a bottom cylinder;
s3, sequentially splicing the assembled top cylinder, middle cylinder and bottom cylinder to form a protective cylinder, sleeving a clamp outside the top cylinder, and determining the inner diameter of the clamp according to the minimum outer diameter of the pile body;
s4, drilling holes at a preset position marked on the ground according to construction requirements, sinking the pile casing into the pile hole, pouring the filler into the pile casing, and tamping the filler in layers until the pile top elevation is reached;
s5, backfilling gaps between the pile casing and the pile holes with plain soil or sand, and taking out the clamp after the gaps are in close contact with the pile casing and the pile holes to finish construction of one pile body.
The beneficial effects of the invention are as follows:
1. the spliced variable-diameter rigid pile casing is arranged on the outer side of the pile body of the compaction pile so as to achieve the purposes of preventing the compaction pile body from twisting and breaking, improving the integrity of the pile body, improving the compaction effect and effectively reducing the negative friction resistance. The whole structure is simple, the working principle is simple, the modularized processing production can be realized, the assembly degree is high, the construction speed is high, and the practicability is high;
2. after pile construction is completed, pile body filler in the pile casing continuously expands to push the pile casing to gradually expand, the diameter of the pile body is continuously enlarged, soil bodies among piles are continuously compacted, the spliced variable-diameter rigid pile casing improves the pile body integrity of the bulk material compacted pile, the problems of pile body pile breakage, displacement and the like are avoided, the spliced variable-diameter rigid pile casing enables the semi-rigid compacted pile to greatly improve the horizontal shear capacity while improving the vertical bearing capacity, the protection effect of the pile casing on the hole wall and the spliced property of the pile casing can enlarge the treatment depth of the pile body, the spliced variable-diameter rigid pile casing pile and the soil body around the pile form a composite foundation, pile and soil displacement coordinate development and jointly bear upper load, the bearing capacity of the foundation is improved, and foundation settlement is reduced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a spliced variable-diameter rigid casing compaction pile according to an embodiment of the present invention;
FIG. 2 is a schematic view of a bottom casing of a spliced diameter-variable rigid casing compaction pile according to an embodiment of the present invention;
FIG. 3 is a schematic view of a middle barrel of a spliced diameter-variable rigid casing compaction pile according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a top casing of a spliced variable diameter rigid casing compaction pile according to an embodiment of the present invention;
FIG. 5 is a schematic view of an arc-shaped outer plate of a spliced diameter-variable rigid casing compaction pile according to an embodiment of the present invention;
FIG. 6 is an enlarged view of a portion of a splice groove for splice variable diameter rigid casing compaction piles according to an embodiment of the present invention;
fig. 7 is a schematic structural view of a connecting plate of a spliced variable-diameter rigid casing compaction pile according to an embodiment of the invention.
Reference numerals illustrate:
the pile comprises a pile body 1, a pile casing 2, a bottom casing 3, a middle casing first fixing bolt 4, a middle casing second fixing bolt 5, a top casing fixing bolt 6, a first connecting plate 7, a second connecting plate 8, a first sliding ball 9, a second sliding ball 10, a third sliding ball 11, a bottom casing 21, a middle casing 22, a top casing 23, a bottom casing arc inner plate 211, a bottom casing arc outer plate 212, a bottom casing positioning slot 213, a middle casing arc inner plate 221, a middle casing arc outer plate 222, a middle casing positioning slot 223, a middle casing positioning slot 224, a top casing arc inner plate 231, a top casing arc outer plate 232, a top casing positioning pin 233, a bottom casing splicing convex strip 2111, a bottom casing splicing groove 2121, a middle casing splicing convex strip 2211, a middle casing splicing convex strip 2221, a top casing splicing groove 2311, and a top casing splicing groove 2321.
Detailed Description
Embodiments of the present invention are further described below with reference to the accompanying drawings.
Examples:
as shown in fig. 1-7, the spliced variable-diameter rigid pile casing compaction pile comprises a pile body 1 and a pile casing 2 sleeved outside the pile body 1, wherein the pile casing 2 comprises a bottom casing 21, a middle casing 22 and a top casing 23 which are coaxially and sequentially connected, bottom casing fixing bolts 3 are uniformly distributed in the annular direction of the outer wall of one end of the bottom casing 21, middle casing first fixing bolts 4 corresponding to the bottom casing fixing bolts 3 are uniformly distributed in the annular direction of the outer wall of one end of the middle casing 22, middle casing second fixing bolts 5 corresponding to the bottom casing fixing bolts 3 are uniformly distributed in the annular direction of the outer wall of one end of the middle casing 22, top casing fixing bolts 6 corresponding to the bottom casing fixing bolts 3 are uniformly distributed in the annular direction of the outer wall of one end of the top casing 23, the bottom casing fixing bolts 3 are connected with the top casing first fixing bolts 4 through first connecting plates 7, the middle casing second fixing bolts 5 are connected with the top casing fixing bolts 6 through second connecting plates 8, and the bottom casing 21, middle casing 22 and the top casing 23 are identical in structure;
the top cylinder 23 comprises a plurality of top cylinder arc inner plates 231 and a plurality of top cylinder arc outer plates 232, wherein each top cylinder arc inner plate 231 is provided with a top cylinder splicing convex strip 2311 at intervals along the axial direction of the top cylinder 23 on one side of the cambered surface direction far away from the axial line of the top cylinder 23, each top cylinder arc outer plate 232 is provided with a top cylinder splicing groove 2321 corresponding to the top cylinder splicing convex strip 2311 at intervals along the axial direction of the top cylinder 23 on one side of the cambered surface direction facing the axial line of the top cylinder 23, the top cylinder splicing convex strips 2311 are in sliding connection with the top cylinder splicing grooves 2321, and the plurality of top cylinder arc inner plates 231 are spliced into a cylinder with the plurality of top cylinder arc outer plates 232;
the middle cylinder 22 comprises a plurality of middle cylinder arc inner plates 221 and a plurality of middle cylinder arc outer plates 222, wherein each middle cylinder arc inner plate 221 is provided with a middle cylinder splicing convex strip 2211 at intervals along the axial direction of the middle cylinder 22 at a side far away from the axial line of the middle cylinder 22 in the cambered direction, each middle cylinder arc outer plate 222 is provided with a middle cylinder splicing groove 2221 corresponding to the middle cylinder splicing convex strip 2211 at intervals along the axial direction of the middle cylinder 22 at a side facing the axial line of the middle cylinder 22 in the cambered direction, the middle cylinder splicing convex strip 2211 is in sliding connection with the middle cylinder splicing groove 2221, and the middle cylinder arc inner plates 221 are spliced with the plurality of middle cylinder arc outer plates 222 to form a cylinder;
the bottom cylinder 21 includes a plurality of bottom cylinder arc inner plates 211 and a plurality of bottom cylinder arc outer plates 212, and every bottom cylinder arc inner plate 211 is provided with a bottom cylinder concatenation sand grip 2111 along the bottom cylinder 21 axis direction in the interval of one side that the cambered surface direction is far away from the bottom cylinder 21 axis, and every bottom cylinder arc outer plate 212 is provided with a bottom cylinder concatenation recess 2121 that corresponds to a bottom cylinder concatenation sand grip 2111 along the bottom cylinder 21 axis direction in the interval of one side that the cambered surface direction is facing to the bottom cylinder 21 axis, bottom cylinder concatenation sand grip 2111 and bottom cylinder concatenation recess 2121 sliding connection, a plurality of bottom cylinder arc inner plates 211 splice into the cylinder with a plurality of bottom cylinder arc outer plates 212.
The working principle of the technical scheme is as follows:
the pile body 1 is filled into the pile body 2 in a filling manner, and as the bottom cylinder 21, the middle cylinder 22 and the top cylinder 23 are all cylinders formed by splicing a plurality of arc-shaped outer plates and arc-shaped inner plates, in the filling process, the continuous expansion can push the spliced variable-diameter rigid pile body to be continuously expanded, the diameter of the pile body is continuously increased, soil between piles is continuously compacted, the spliced variable-diameter rigid pile body and soil body around the piles form a composite foundation, the pile and soil displacement coordinate development, the upper load is jointly borne, the vertical bearing capacity and the horizontal shear capacity of the foundation are greatly improved, the foundation settlement is reduced, the protection effect of the spliced variable-diameter pile body on the wall of the hole and the splicing performance of the pile body can be increased, the pile body is simple in integral structure, the working principle is simple, the modular processing production can be realized, the assembly degree is high, the construction speed is high, and the practicability is high.
One end of the top cylinder arc-shaped outer plate 232, which is close to the middle cylinder 22, is connected with a top cylinder positioning plug 233, one end of the middle cylinder arc-shaped outer plate 222, which is close to the top cylinder 23, is connected with a middle cylinder positioning slot 223 corresponding to the top cylinder positioning plug 233, one end of the middle cylinder arc-shaped outer plate 222, which is close to the bottom cylinder 21, is connected with a middle cylinder positioning plug 224, and one end of the bottom cylinder arc-shaped outer plate 212, which is close to the middle cylinder 22, is connected with a bottom cylinder positioning slot 213 corresponding to the middle cylinder positioning plug 224, and the stability of cylinder connection can be improved in a plugging manner.
The top barrel splice groove 2321 is provided with the first sliding ball 9 along the sliding direction thereof, the middle barrel splice groove 2221 is provided with the second sliding ball 10 along the sliding direction thereof, and the bottom barrel splice groove 2121 is provided with the third sliding ball 11 along the sliding direction thereof, so that the sliding sensitivity of the arc-shaped inner plate and the outer plate can be improved.
The first sliding ball 9, the second sliding ball 10 and the third sliding ball 11 are cylindrical balls, so that the stability of the splicing process can be ensured.
A spliced variable-diameter rigid pile casing compaction pile is constructed by the following steps of;
s1, prefabricating a bottom cylinder 21, a middle cylinder 22 and a top cylinder 23, wherein a plurality of top cylinder arc inner plates 231, a plurality of top cylinder arc outer plates 232, a plurality of middle cylinder arc inner plates 221, a plurality of middle cylinder arc outer plates 222, a plurality of bottom cylinder arc inner plates 211 and a plurality of bottom cylinder arc outer plates 212 are prefabricated;
s2, assembling a plurality of top cylinder arc inner plates 231 and a plurality of top cylinder arc outer plates 232 into a top cylinder 23, assembling a plurality of middle cylinder arc inner plates 221 and a plurality of middle cylinder arc outer plates 222 into a middle cylinder 22, and assembling a plurality of bottom cylinder arc inner plates 211 and a plurality of bottom cylinder arc outer plates 212 into a bottom cylinder 21;
s3, sequentially splicing the assembled top cylinder 23, middle cylinder 22 and bottom cylinder 21 to form a protective cylinder 2, sleeving a clamp outside the top cylinder 23, and determining the inner diameter of the clamp according to the minimum outer diameter of the pile body;
s4, drilling holes at a preset position marked on the ground according to construction requirements, sinking the pile casing (2) into a pile hole, pouring filler into the pile casing (2), and tamping in layers until the pile top elevation is achieved;
s5, backfilling gaps between the pile casing 2 and the pile holes with plain soil or sand, and taking out the clamp after the gaps are in close contact with the pile casing to finish construction of one pile body.
The foregoing examples merely illustrate specific embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.
Claims (2)
1. The utility model provides a but spliced reducing rigidity pile casing compaction pile, its characterized in that includes pile body (1) and cover and establish pile casing (2) outside pile body (1), pile casing (2) are including coaxial end section of thick bamboo (21), well section of thick bamboo (22) and top section of thick bamboo (23) that link to each other in proper order, end section of thick bamboo (21) axis direction is close to the top section of thick bamboo fixing bolt (6) of the annular direction of one end outer wall of well section of thick bamboo (22), well section of thick bamboo (22) axis direction is close to the first fixing bolt (4) of the middle section of thick bamboo of the annular direction equipartition of one end outer wall of bottom section of thick bamboo (21) corresponding to end section of thick bamboo fixing bolt (3), well section of thick bamboo (22) axis direction is close to the top section of thick bamboo fixing bolt (6) of thick bamboo of one end outer wall annular direction of well section of thick bamboo fixing bolt (3) of thick bamboo of top section of thick bamboo, link to each other through first connecting plate (7) between end section of thick bamboo fixing bolt (3) and the first fixing bolt (4) of the middle section of thick bamboo, the middle section of thick bamboo (22) axis direction is close to link to each other through first connecting plate (8), between the connecting plate (8) and the first connecting plate (8);
the top cylinder (23) comprises a plurality of top cylinder arc inner plates (231) and a plurality of top cylinder arc outer plates (232), each top cylinder arc inner plate (231) is provided with a top cylinder splicing convex strip (2311) at intervals along the axial direction of the top cylinder (23) at one side of the cambered surface direction far away from the axial line of the top cylinder (23), each top cylinder arc outer plate (232) is provided with a top cylinder splicing groove (2321) corresponding to the top cylinder splicing convex strip (2311) at intervals along the axial direction of the top cylinder (23) at one side of the cambered surface direction facing the axial line of the top cylinder (23), the top cylinder splicing convex strips (2311) are connected with the top cylinder splicing grooves (2321) in a sliding mode, and the plurality of top cylinder arc inner plates (231) and the plurality of top cylinder arc outer plates (232) are spliced into a cylinder;
the middle cylinder (22) comprises a plurality of middle cylinder arc inner plates (221) and a plurality of middle cylinder arc outer plates (222), wherein middle cylinder splicing convex strips (2211) are arranged on one side, far away from the axis of the middle cylinder (22), of each middle cylinder arc inner plate (221) in the cambered surface direction along the axis direction of the middle cylinder (22), middle cylinder splicing grooves (2221) corresponding to the middle cylinder splicing convex strips (2211) are arranged on one side, facing the axis of the middle cylinder (22), of each middle cylinder arc outer plate (222) in the cambered surface direction along the axis direction of the middle cylinder (22), the middle cylinder splicing convex strips (2211) are connected with the middle cylinder splicing grooves (2221) in a sliding mode, and the middle cylinder arc inner plates (221) and the middle cylinder arc outer plates (222) are spliced into a cylinder;
the bottom cylinder (21) comprises a plurality of bottom cylinder arc inner plates (211) and a plurality of bottom cylinder arc outer plates (212), wherein each bottom cylinder arc inner plate (211) is provided with bottom cylinder splicing convex strips (2111) at intervals along the axis direction of the bottom cylinder (21) at one side far away from the axis of the bottom cylinder (21) in the cambered surface direction, each bottom cylinder arc outer plate (212) is provided with bottom cylinder splicing grooves (2121) corresponding to the bottom cylinder splicing convex strips (2111) at intervals along the axis direction of the bottom cylinder (21) at one side facing the axis of the bottom cylinder (21), the bottom cylinder splicing convex strips (2111) are in sliding connection with the bottom cylinder splicing grooves (2121), and the plurality of bottom cylinder arc inner plates (211) and the plurality of bottom cylinder arc outer plates (212) are spliced into a cylinder;
one end of the top cylinder arc-shaped outer plate (232) close to the middle cylinder (22) is connected with a top cylinder positioning bolt (233), one end of the middle cylinder arc-shaped outer plate (222) close to the top cylinder (23) is connected with a middle cylinder positioning slot (223) corresponding to the top cylinder positioning bolt (233), one end of the middle cylinder arc-shaped outer plate (222) close to the bottom cylinder (21) is connected with a middle cylinder positioning bolt (224), and one end of the bottom cylinder arc-shaped outer plate (212) close to the middle cylinder (22) is connected with a bottom cylinder positioning slot (213) corresponding to the middle cylinder positioning bolt (224);
the top barrel splicing groove (2321) is provided with a first sliding ball (9) along the sliding direction of the top barrel splicing groove, the middle barrel splicing groove (2221) is provided with a second sliding ball (10) along the sliding direction of the top barrel splicing groove, and the bottom barrel splicing groove (2121) is provided with a third sliding ball (11) along the sliding direction of the bottom barrel splicing groove;
the construction method also comprises the following steps:
s1, prefabricating a bottom cylinder (21), a middle cylinder (22) and a top cylinder (23), wherein a plurality of top cylinder arc inner plates (231), a plurality of top cylinder arc outer plates (232), a plurality of middle cylinder arc inner plates (221), a plurality of middle cylinder arc outer plates (222), a plurality of bottom cylinder arc inner plates (211) and a plurality of bottom cylinder arc outer plates (212) are prefabricated;
s2, assembling a plurality of top cylinder arc inner plates (231) and a plurality of top cylinder arc outer plates (232) into a top cylinder (23), assembling a plurality of middle cylinder arc inner plates (221) and a plurality of middle cylinder arc outer plates (222) into a middle cylinder (22), and assembling a plurality of bottom cylinder arc inner plates (211) and a plurality of bottom cylinder arc outer plates (212) into a bottom cylinder (21);
s3, sequentially splicing the assembled top cylinder (23), middle cylinder (22) and bottom cylinder (21) to form a protective cylinder (2), sleeving a clamp outside the top cylinder (23), and determining the inner diameter of the clamp according to the minimum outer diameter of the pile body;
s4, drilling holes at a preset position marked on the ground according to construction requirements, sinking the pile casing (2) into the pile hole, pouring filler into the pile casing (2), and tamping in layers until the pile top elevation is achieved;
s5, backfilling gaps between the pile casing (2) and the pile holes with plain soil or sand, and taking out the clamp after the gaps are in close contact with the pile casing and completing construction of one pile body.
2. The spliced variable-diameter rigid casing compaction pile according to claim 1, wherein the first sliding ball (9), the second sliding ball (10) and the third sliding ball (11) are cylindrical balls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210428904.9A CN114673148B (en) | 2022-04-22 | 2022-04-22 | Spliced variable-diameter rigid pile casing compaction pile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210428904.9A CN114673148B (en) | 2022-04-22 | 2022-04-22 | Spliced variable-diameter rigid pile casing compaction pile |
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| CN114673148A CN114673148A (en) | 2022-06-28 |
| CN114673148B true CN114673148B (en) | 2023-06-06 |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4599508B2 (en) * | 2000-08-23 | 2010-12-15 | 三谷セキサン株式会社 | Method of burying ready-made piles with protrusions and foundation pile structure in Nakabori method |
| JP2003082656A (en) * | 2001-09-12 | 2003-03-19 | Asahi Kasei Corp | Joint structure of ready-made pile |
| CN205276254U (en) * | 2015-11-10 | 2016-06-01 | 浙江大学 | Drainage is and add prefabricated skirt tubular pile of pile body bearing diagonal |
| CN110387880A (en) * | 2019-07-29 | 2019-10-29 | 中铁十二局集团建筑安装工程有限公司 | A kind of bored pile construction method |
| CN210946796U (en) * | 2019-09-19 | 2020-07-07 | 中电建十一局工程有限公司 | Assembled combined pile foundation casing |
| CN114134822A (en) * | 2021-12-28 | 2022-03-04 | 江西省公路桥梁工程有限公司 | Bridge cast-in-situ bored pile retaining wall structure and construction method thereof |
| CN218757451U (en) * | 2022-04-22 | 2023-03-28 | 兰州石化职业技术学院 | Can splice reducing rigidity and protect a section of thick bamboo compaction stake |
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