CN111719551A - Novel overlapped cast-in-place pile suitable for karst landform and construction method thereof - Google Patents
Novel overlapped cast-in-place pile suitable for karst landform and construction method thereof Download PDFInfo
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- CN111719551A CN111719551A CN202010629302.0A CN202010629302A CN111719551A CN 111719551 A CN111719551 A CN 111719551A CN 202010629302 A CN202010629302 A CN 202010629302A CN 111719551 A CN111719551 A CN 111719551A
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- 238000010276 construction Methods 0.000 title claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 53
- 239000010959 steel Substances 0.000 claims abstract description 53
- 238000005553 drilling Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000004575 stone Substances 0.000 claims abstract description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 8
- 239000010935 stainless steel Substances 0.000 claims abstract description 8
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 7
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 7
- 241001330002 Bambuseae Species 0.000 claims description 7
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 7
- 239000011425 bamboo Substances 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 6
- 239000004570 mortar (masonry) Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 239000002689 soil Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 210000002784 stomach Anatomy 0.000 description 4
- 239000002002 slurry Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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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
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/08—Improving by compacting by inserting stones or lost bodies, e.g. compaction piles
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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
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/28—Placing of hollow pipes or mould pipes by means arranged inside the piles or pipes
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
- E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
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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
- E02D2250/0007—Production methods using a mold
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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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0061—Production methods for working underwater
- E02D2250/0076—Drilling
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/20—Miscellaneous comprising details of connection between elements
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Soil Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a novel superposed cast-in-place pile suitable for karst landforms and a construction method thereof, and particularly relates to the field of cast-in-place piles. According to the invention, through arranging the drill bottom, the drill rod, the external steel casing and the internal pile body, when the cast-in-place pile is installed, drilling needs to be carried out through the drill bottom at the bottom end, the drill rod at the bottom end of the drill bottom can crush stones in the rotating process, the drill rod is made of conical stainless steel materials, the blocked stones can be more conveniently crushed, the cast-in-place pile is convenient to install, the external steel casing is sleeved on the outer surface of the internal pile body, the external steel casing is fixed on the internal pile body through the steel casing reinforcing ring, the internal pile body can be better protected, the damage in the using process is avoided, and the service life of the cast-in-place pile is prolonged.
Description
Technical Field
The invention relates to the field of cast-in-place piles, in particular to a novel overlapped cast-in-place pile suitable for karst landforms and a construction method thereof.
Background
The bored concrete pile is made up by directly making holes on the designed pile position, making its cross-section be circular, after the holes are formed, placing reinforcing cage in the holes and pouring concrete. It is used for urban construction.
However, above-mentioned technical scheme is when the actual use, and it is comparatively troublesome when installing like current bored concrete pile, need drill hole through the rig again when meetting harder stone to bored concrete pile's volume is great, inconvenient transport.
Disclosure of Invention
In order to overcome the defects of the prior art, the embodiment of the invention provides a novel laminated cast-in-place pile suitable for karst landforms and a construction method thereof.
In order to achieve the purpose, the invention provides the following technical scheme: a novel overlapped cast-in-place pile suitable for karst landform comprises an external steel pile casing, wherein a drill bottom is fixedly installed at the bottom end of the external steel pile casing, a plurality of slurry involving holes are formed in the outer surface of the drill bottom and are arranged in an annular mode, a drill rod is fixedly installed at the bottom end of the drill bottom and is in a conical shape, a fixing ring is sleeved on the outer surface of the external steel pile casing, a slurry involving hole is formed in the outer surface of the external steel pile casing, the lower portion of the fixing ring is located below the fixing ring, a connecting rod is arranged at the top end of the fixing ring, the external steel pile casing is fixedly connected with the connecting rod through the fixing ring, an internal pile body is fixedly installed inside the external steel pile casing, the internal pile body is of a hollow structure, a steel pile casing reinforcing ring is fixedly installed on the outer surface of the external steel pile casing, an inner ring is arranged inside the fixing ring, and, the outer surface of the fixing ring is provided with an outer filling hole, the inner wall of the inner ring is provided with a clamping column, one side, located on the fixing ring, of the outer surface of the external steel protection cylinder is provided with an inner filling hole, and the outer surface of the external steel protection cylinder is provided with a clamping groove.
In a preferred embodiment, a bolt is inserted into the outer surface of the fixing ring, and a limit groove is formed in the outer surface of the inner ring.
In a preferred embodiment, one end of the bolt is matched with the limiting groove, the inner wall of the limiting groove is fixedly provided with the first magnetic block, and the bolt is made of stainless steel.
In a preferred embodiment, inner grooves are formed in two sides of the inner ring, and the inner wall of the fixing ring is fixedly provided with a second magnetic block.
In a preferred embodiment, a mounting ring is fixedly mounted on the inner wall of the inner groove, and a spring is fixedly mounted at one end of the mounting ring.
In a preferred embodiment, one end of the spring is fixedly connected with a clamping column, and one end of the clamping column is matched with the clamping groove.
In a preferred embodiment, the drill pipe and the clamping column are made of stainless steel.
A construction method of a novel overlapped cast-in-place pile suitable for karst landforms is characterized by comprising the following steps: the operation steps are as follows:
the method comprises the following steps: the specific distribution positions of the underground river and the extra-large karst cave are explored;
step two: stacking and combining the cast-in-place piles;
step three: drilling a drill bottom into the bearing layer through a drill rod at the bottom end, and constructing a steel-like casing follow-up method;
step four: drilling the bottom to the bottom below the substrate, and cleaning the bottom;
step five: after the distribution is proved, opening liquid holes for the steel protecting cylinder, and lowering the steel protecting cylinder;
step six: cleaning the intermediate layer between the steel casing and the drill body with clear water;
step seven: directly filling the middle pile body, and performing wading setting;
step eight: the wading solution is firstly backfilled with mortar, then backfilled with sandy soil and crushed stone, and then backfilled with the mortar until the backfilling amount is equal to the inner space of the pile length.
The invention has the technical effects and advantages that:
1. according to the invention, through the arrangement of the drill bottom, the drill rod, the external steel casing and the internal pile body, when the cast-in-place pile is installed, drilling needs to be carried out through the drill bottom at the bottom end, the drill rod at the bottom end of the drill bottom can crush stones in the rotating process, the drill rod is made of a conical stainless steel material, the blocked stones can be more conveniently crushed, the cast-in-place pile is convenient to install, the external steel casing is sleeved on the outer surface of the internal pile body, the external steel casing is fixed on the internal pile body through the steel casing reinforcing ring, the internal pile body can be better protected, the damage in the using process is avoided, and the service life of the cast-in-place pile is prolonged;
2. according to the invention, by arranging the fixing ring, the inner ring, the first magnetic block and the second magnetic block, when the connecting rod is connected with the built-in pile body, the bottom end of the connecting rod needs to be placed in the inner ring, so that the clamping grooves on two sides of the bottom end of the connecting rod correspond to one end of the inner groove, then the fixing ring is rotated to drive the second magnetic block on the inner wall of the fixing ring to be staggered from one end of the inner groove until one end of the bolt corresponds to the limiting groove, at the moment, the bolt is attracted by the magnetic force of the first magnetic block in the limiting groove and is inserted into the limiting groove to fix the fixing ring and the inner ring, and meanwhile, after one end of the clamping column loses the magnetic force attraction, the spring at one end of the mounting ring is pushed out, so that the.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an internal structure view of the external steel casing of the present invention.
Fig. 3 is a connection structure view of the connection rod of the present invention.
Fig. 4 is a structural view of a connection state of the fixing ring of the present invention.
Fig. 5 is a structural view of the fixing ring of the present invention in a disassembled state.
Fig. 6 is an enlarged view of fig. 4 at a.
FIG. 7 is a top view of a drill bottom of the present invention.
The reference signs are: 1. an external steel casing; 2. drilling a bottom; 3. wading holes; 4. a drill stem; 5. a fixing ring; 6. a liquid well; 7. a connecting rod; 8. a pile body is arranged inside; 9. reinforcing rings of the steel casing; 10. an inner ring; 11. filling holes outside; 12. clamping the column; 13. filling holes in the steel pipe; 14. a card slot; 15. a bolt; 16. a limiting groove; 17. a first magnetic block; 18. an inner tank; 19. a second magnetic block; 20. a mounting ring; 21. a spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
According to the novel overlapped cast-in-place pile suitable for karst landform shown in fig. 1-4, the pile comprises an external steel pile casing 1, a drill bottom 2 is fixedly installed at the bottom end of the external steel pile casing 1, a plurality of slurry-involving holes 3 are formed in the outer surface of the drill bottom 2, the slurry-involving holes 3 are arranged in an annular shape, a drill rod 4 is fixedly installed at the bottom end of the drill bottom 2, the drill rod 4 is in a cone shape, a fixing ring 5 is sleeved on the outer surface of the external steel pile casing 1, a slurry-involving hole 6 is formed in the outer surface of the external steel pile casing 1, which is positioned below the fixing ring 5, a connecting rod 7 is arranged at the top end of the fixing ring 5, the external steel pile casing 1 is fixedly connected with the connecting rod 7 through the fixing ring 5, an internal pile body 8 is fixedly installed inside the external steel pile casing 1, the internal pile body 8 is of a hollow structure, and a steel pile casing reinforcing ring 9 is, the inside of solid fixed ring 5 is provided with inner ring 10, gu fixed ring 5 rotates with inner ring 10 to be connected, gu fixed ring 5's surface has seted up outer filling hole 11, inner ring 10's inner wall is provided with card post 12, the surface that external steel protected a section of thick bamboo 1 is located one side of solid fixed ring 5 and has seted up inner filling hole 13, external steel protects a section of thick bamboo 1's surface and has seted up draw-in groove 14.
The implementation mode is specifically as follows: when installing the bored concrete pile, need bore at the bottom of 2 through the bottom and drill, at the rotation in-process, bore at the bottom of 2 drilling drill pipe 4 of bottom and can the stone smash, drilling pipe 4 is conical stainless steel, can more conveniently smash the stone that blocks, be convenient for install the bored concrete pile, the surface cover of built-in pile body 8 is equipped with external steel protects a section of thick bamboo 1, protect a section of thick bamboo 1 with external steel through steel and fix on built-in pile body 8, can carry out better protection to built-in pile body 8, avoid receiving the damage at the in-process that uses, the life of bored concrete pile has been increased.
According to the novel superposed cast-in-place pile suitable for karst landform shown in fig. 5-7, a bolt 15 is inserted into the outer surface of the fixing ring 5, a limiting groove 16 is formed in the outer surface of the inner ring 10, one end of the bolt 15 is matched with the limiting groove 16, a first magnetic block 17 is fixedly mounted on the inner wall of the limiting groove 16, the bolt 15 is made of stainless steel, an inner groove 18 is formed in the two inner sides of the inner ring 10, a second magnetic block 19 is fixedly mounted on the inner wall of the fixing ring 5, a mounting ring 20 is fixedly mounted on the inner wall of the inner groove 18, a spring 21 is fixedly mounted at one end of the mounting ring 20, one end of the spring 21 is fixedly connected with the clamping column 12, one end of the clamping column 12 is matched with the clamping groove 14, and the drill rod 4 and the clamping column 12.
A construction method of a novel overlapped cast-in-place pile suitable for karst landforms is characterized by comprising the following steps: the operation steps are as follows:
the method comprises the following steps: the specific distribution positions of the underground river and the extra-large karst cave are explored;
step two: stacking and combining the cast-in-place piles;
step three: drilling the drill bottom 2 into the bearing stratum through the drill rod 4 at the bottom end, and constructing a steel-like casing follow-up method;
step four: drilling a bottom 2 to the bottom from the lower part, and cleaning the bottom;
step five: after the distribution is proved, opening the liquid-extracting holes 6 for the steel casing, and lowering the steel casing;
step six: cleaning the intermediate layer between the steel casing and the drill body with clear water;
step seven: directly filling the middle pile body, and performing wading setting;
step eight: firstly backfilling mortar with wading liquid, adding backfilled sandy soil crushed stone, and then backfilling the mortar until the backfilling amount is equal to the inner space of the pile length;
the implementation mode is specifically as follows: when the connecting rod 7 is connected with the built-in pile body 8, the bottom end of the connecting rod 7 needs to be placed in the inner ring 10, the clamping grooves 14 on two sides of the bottom end of the connecting rod 7 correspond to one end of the inner groove 18, then the fixing ring 5 is rotated to drive the second magnetic block 19 on the inner wall of the fixing ring 5 to be staggered from one end of the inner groove 18 until one end of the bolt 15 corresponds to the limiting groove 16, at this time, the bolt 15 is attracted by the magnetic force of the first magnetic block 17 in the limiting groove 16 and is inserted into the limiting groove 16 to fix the fixing ring 5 and the inner ring 10, meanwhile, after one end of the clamping column 12 loses the attraction of the magnetic force, the spring 21 at one end of the mounting ring 20 is pushed out, the other end of the clamping column 12 is inserted into the clamping groove 14 to complete the connection of the connecting rod 7, which is convenient, the built-in pile body 8 is the same as the connecting structure of, the limit between the inner ring 10 and the fixing ring 5 is released, then the fixing ring 5 is rotated along the inner ring 10, the second magnetic block 19 on the inner wall of the fixing ring 5 corresponds to one end of the inner groove 18, the clamping column 12 inside the inner groove 18 is attracted by the magnetic force of the second magnetic block 19, the clamping column 12 is driven to move to one side, one end of the clamping column 12 is separated from the clamping groove 14, the fixing is released, and then the connecting rod 7 is detached.
The working principle of the invention is as follows:
referring to the attached drawings 1-4 of the specification, in use, the fixing ring 2 at one end needs to be inserted into the stomach through the connecting tube 1, when the fixing ring reaches the stomach, the connecting band 11 inside the connecting tube 1 is pulled through the lantern ring 31 on the sliding connecting ring 3, one end of the connecting band 11 is wound on the outer surface of the rotating shaft 28, the rotating shaft 28 is driven to rotate in the pulling process, the rotating shaft 28 drives the connecting shaft 26 to rotate, so as to drive the fixing ring 2 to expand outwards, the micro camera 21 on the fixing ring 2 is opened, the fixing ring 2 is in the expanded state, the visual field of the micro camera 21 is increased, the micro camera 21 can capture the stomach situation relatively comprehensively, when the micro camera 21 is in a working state, the illuminating lamp 23 at one end is opened to work, after the detection is finished, the first torsion spring 27 on the connecting shaft 26 drives the fixing ring 2 to contract inwards, the micro camera 21 on one side of the fixing ring 2 is buckled on, the space is reduced, the miniature camera 21 is convenient to take out of the stomach, and meanwhile, the miniature camera is protected to a certain extent;
referring to the attached drawings 5-7 of the specification, when the connecting rod 7 is connected with the built-in pile body 8, the bottom end of the connecting rod 7 needs to be placed in the inner ring 10, the clamping grooves 14 on the two sides of the bottom end of the connecting rod 7 correspond to one end of the inner groove 18, then the fixing ring 5 is rotated to drive the second magnetic block 19 on the inner wall of the fixing ring 5 to be staggered from one end of the inner groove 18 until one end of the bolt 15 corresponds to the limiting groove 16, at this time, the bolt 15 is attracted by the magnetic force of the first magnetic block 17 in the limiting groove 16 and is inserted into the limiting groove 16 to fix the fixing ring 5 and the inner ring 10, meanwhile, after one end of the clamping column 12 loses the magnetic attraction, the spring 21 at one end of the mounting ring 20 is pushed out, the other end of the clamping column 12 is inserted into the clamping groove 14 to complete the connection of the connecting rod 7, the connecting structure of the built-, the latch 15 needs to be pulled out first to remove the limit between the inner ring 10 and the fixing ring 5, then the fixing ring 5 is rotated along the inner ring 10 to enable the second magnetic block 19 on the inner wall of the fixing ring 5 to correspond to one end of the inner groove 18, the clamping column 12 inside the inner groove 18 is attracted by the magnetic force of the second magnetic block 19, the clamping column 12 is driven to move towards one side, one end of the clamping column 12 is separated from the clamping groove 14 to be removed from the fixing, and then the connecting rod 7 is detached.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (8)
1. The utility model provides a novel coincide formula bored concrete pile suitable for karst landform, protects a section of thick bamboo (1) including external steel, its characterized in that: the bottom end of the external steel pile casing (1) is fixedly provided with a drilling bottom (2), the outer surface of the drilling bottom (2) is provided with a plurality of slurry-wading holes (3), the slurry-wading holes (3) are annularly arranged, the bottom end of the drilling bottom (2) is fixedly provided with a drill rod (4), the drill rod (4) is in a cone shape, the outer surface of the external steel pile casing (1) is sleeved with a fixing ring (5), the outer surface of the external steel pile casing (1) is positioned below the fixing ring (5) and provided with a liquid-wading hole (6), the top end of the fixing ring (5) is provided with a connecting rod (7), the external steel pile casing (1) is fixedly connected with the connecting rod (7) through the fixing ring (5), the internal part of the external steel pile casing (1) is fixedly provided with an internal pile body (8), the internal pile body (8) is of a hollow structure, the outer surface of the external steel pile casing (1) is fixedly provided with a steel casing, the inside of solid fixed ring (5) is provided with inner ring (10), gu fixed ring (5) rotates with inner ring (10) and is connected, outer filling hole (11) have been seted up to the surface of solid fixed ring (5), the inner wall of inner ring (10) is provided with card post (12), inner filling hole (13) have been seted up to one side that the surface of external steel protects a section of thick bamboo (1) is located solid fixed ring (5), draw-in groove (14) have been seted up to the surface that external steel protected a section of thick bamboo (1).
2. The novel overlapped cast-in-place pile suitable for karst landforms, according to claim 1, is characterized in that: the outer surface of the fixing ring (5) is inserted with a bolt (15), and the outer surface of the inner ring (10) is provided with a limit groove (16).
3. The novel overlapped cast-in-place pile suitable for karst landforms, according to claim 2, is characterized in that: one end of the bolt (15) is matched with the limiting groove (16), a first magnetic block (17) is fixedly mounted on the inner wall of the limiting groove (16), and the bolt (15) is made of stainless steel.
4. The novel overlapped cast-in-place pile suitable for karst landforms, according to claim 1, is characterized in that: inner grooves (18) are formed in two sides of the inner portion of the inner ring (10), and second magnetic blocks (19) are fixedly mounted on the inner wall of the fixing ring (5).
5. The novel overlapped cast-in-place pile suitable for karst landforms as claimed in claim 4, wherein: and a mounting ring (20) is fixedly mounted on the inner wall of the inner groove (18), and a spring (21) is fixedly mounted at one end of the mounting ring (20).
6. The novel overlapped cast-in-place pile suitable for karst landforms, according to claim 5, is characterized in that: one end of the spring (21) is fixedly connected with the clamping column (12), and one end of the clamping column (12) is matched with the clamping groove (14).
7. The novel overlapped cast-in-place pile suitable for karst landforms, according to claim 1, is characterized in that: the drill rod (4) and the clamping column (12) are both made of stainless steel.
8. The construction method of the novel overlapped cast-in-place pile suitable for karst landforms as claimed in any one of claims 1-7, wherein: the operation steps are as follows:
the method comprises the following steps: the specific distribution positions of the underground river and the extra-large karst cave are explored;
step two: stacking and combining the cast-in-place piles;
step three: drilling the drill bottom (2) into the bearing layer through a drill rod (4) at the bottom end, and constructing a steel-like casing follow-up method;
step four: drilling the bottom (2) from the lower part to the bottom, and cleaning the bottom;
step five: after the distribution is proved, the liquid holes (6) are opened for the steel protecting cylinder, and the steel protecting cylinder is lowered down;
step six: cleaning the intermediate layer between the steel casing and the drill body with clear water;
step seven: directly filling the middle pile body, and performing wading setting;
step eight: the wading solution is firstly backfilled with mortar, then backfilled with sandy soil and crushed stone, and then backfilled with the mortar until the backfilling amount is equal to the inner space of the pile length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010629302.0A CN111719551A (en) | 2020-07-03 | 2020-07-03 | Novel overlapped cast-in-place pile suitable for karst landform and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010629302.0A CN111719551A (en) | 2020-07-03 | 2020-07-03 | Novel overlapped cast-in-place pile suitable for karst landform and construction method thereof |
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| CN111719551A true CN111719551A (en) | 2020-09-29 |
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| CN202010629302.0A Pending CN111719551A (en) | 2020-07-03 | 2020-07-03 | Novel overlapped cast-in-place pile suitable for karst landform and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113802544A (en) * | 2021-10-28 | 2021-12-17 | 福建省兴岩建设集团有限公司 | Concrete pouring pile foundation anti-broken pile processor and construction method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108487868A (en) * | 2018-04-11 | 2018-09-04 | 沈阳建筑大学 | A kind of double drilling pipes of Multifunctional rotating drilling machine and its construction method |
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| CN108487868A (en) * | 2018-04-11 | 2018-09-04 | 沈阳建筑大学 | A kind of double drilling pipes of Multifunctional rotating drilling machine and its construction method |
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| CN113802544A (en) * | 2021-10-28 | 2021-12-17 | 福建省兴岩建设集团有限公司 | Concrete pouring pile foundation anti-broken pile processor and construction method thereof |
| CN113802544B (en) * | 2021-10-28 | 2023-04-07 | 福建省兴岩建设集团有限公司 | Concrete pouring pile foundation anti-broken pile processor and construction method thereof |
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