CN112343045B - Static pressure pipe pile device with recyclable pile tip and construction method - Google Patents
Static pressure pipe pile device with recyclable pile tip and construction method Download PDFInfo
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- CN112343045B CN112343045B CN202011060282.6A CN202011060282A CN112343045B CN 112343045 B CN112343045 B CN 112343045B CN 202011060282 A CN202011060282 A CN 202011060282A CN 112343045 B CN112343045 B CN 112343045B
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- 238000010276 construction Methods 0.000 title claims abstract description 46
- 230000003068 static effect Effects 0.000 title claims abstract description 44
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 86
- 239000010959 steel Substances 0.000 claims abstract description 86
- 239000002689 soil Substances 0.000 claims abstract description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 22
- 239000004567 concrete Substances 0.000 claims description 13
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 239000004576 sand Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 4
- 238000003825 pressing Methods 0.000 abstract description 6
- 230000002787 reinforcement Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 239000004575 stone Substances 0.000 description 4
- 239000003963 antioxidant agent Substances 0.000 description 3
- 230000003078 antioxidant effect Effects 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000011513 prestressed concrete Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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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
- E02D5/72—Pile shoes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
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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
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/20—Placing by pressure or pulling power
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention relates to a static pressure pipe pile sinking device with recoverable pile tip and a construction method, comprising an outer sleeve, the inner pile tip is sleeved at the bottom of the outer sleeve and comprises a hollow cone pile tip, a sliding bearing block and a sliding conical steel tube. The pile pressing machine holds the outer steel pipe to press the pile downwards, the outer steel pipe transmits pressure to the sliding bearing block through the pile shoe, and then the whole pile tip is driven to move downwards, the soil body is extruded to sink into the outer steel pipe and the pile tip.
Description
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to a static pressure pile sinking device with a recoverable pile tip and a construction method.
Background
Currently, the pile foundations used in various projects are dozens of types, and the current main pile guide in China is divided into a bored pile, a vibrating bored pile, a rammed pile, a manual hole digging pile, a prestressed pipe pile, various flexible semi-flexible piles (such as a cement stirring pile, a powder spraying pile, a high-pressure jet grouting pile, a sand pile or a gravel pile) for soft foundation treatment and the like according to different construction technologies. Regarding various types of primary guide piles currently in use, there are the following problems:
(1) The bored pile has the advantages of high quality problems such as pile breakage, necking, segregation and mud clamping, engineering hidden danger, complex construction process, long construction time, large labor input, large solid waste amount, serious environmental pollution, difficult discharge of sediment at the bottom of a hole and pile side mud skin left by mud dado, greatly reduced pile bottom counter force and side wall friction force of the bored pile, and reduced bearing capacity of a pile foundation.
(2) The construction of the prestressed concrete pipe pile is characterized in that the prestressed concrete pipe pile is prefabricated in a factory, the shearing resistance of the pile is poor, the pile is not suitable for being used as a foundation pit guard pile, the welding performance and the corrosion resistance of the pile are difficult to ensure, and the pile is large in environmental pollution and noise due to the adoption of a diesel hammer and is not suitable for urban construction.
(3) The vibrating filling pile and the ramming pile are of pile type with smaller bearing capacity, the cross-sectional area of the pile is small, the bearing capacity and the shearing resistance are small, and the vibrating filling pile and the ramming pile are not suitable for foundation pit guard piles and main force pile types of high-rise houses.
(4) The manual hole digging pile is suitable for pile types with large diameter and pile depth within 15 meters, and the problems of mud flow and sand flow are limited in various areas due to potential safety hazards.
In short, the above pile foundations have such or other problems in pile foundation quality, influence on surrounding environment and buildings, construction safety, construction cost and the like. Generally, the prefabricated pipe pile or square pile is convenient to construct, less in environmental pollution, lower in cost, simple in pile diameter adjustment of the bored pile (rotary-digging), large in cost, and large in pollution to the environment due to slurry and earth outside transportation, and the bearing capacity can be increased along with the increase of the pile diameter. In recent years, full-sleeve rotary-digging cast-in-place piles, pipe-rubbing and pipe-punching grabbing soil cast-in-place piles and the like are introduced by foreign technology, and the problems of soil extrusion, slurry pollution and the like are solved, but the equipment is high in price, extremely high in construction cost, and the earthwork also has to be transported outwards, so that the bearing capacity is not different from that of the common cast-in-place piles, and the comprehensive effect is not high.
In view of the above, improvements are needed.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the static pressure pile sinking device and the construction method, wherein the static pressure pile sinking device has the advantages of good pile foundation quality, small influence on surrounding environment during construction, high efficiency and safety in construction and low construction cost, and the pile tip can be recycled.
In order to achieve the purpose, the technical scheme includes that the static pressure immersed tube pile device with the recoverable pile tip comprises an outer sleeve and a pile tip mechanism sleeved at the bottom of the outer sleeve, wherein the pile tip mechanism comprises an inner pile tip, a sliding bearing block and a claw-shaped steel tube, the sliding bearing block is assembled between the inner pile tip and the outer sleeve, the claw-shaped steel tube is sleeved in the inner pile tip, the bottom of the claw-shaped steel tube is connected with the sliding bearing block, and a steel wire rope is connected to the claw-shaped steel tube.
When the pile tip reaches the design elevation, the steel wire rope connected with the claw-shaped steel tube is lifted up to a limit steel plate, the sliding bearing block is retracted inwards to be smaller than the inner diameter of the steel tube pile shoe, the steel wire rope is lifted up continuously to enable the whole pile tip to be lifted out of the pile hole, then the reinforcement cage is lowered to pour concrete (sand and stone can be poured), and finally the steel tube pile is pulled out.
As a preferable scheme of the invention, the diameter of the inner pile tip is smaller than the inner diameter of the outer sleeve, and the inner pile tip is a hollow cone cast by casting steel.
As a preferable scheme of the invention, the single side of the gap between the inner pile tip and the outer sleeve is 2-10 mm.
As a preferable mode of the invention, the bottom of the claw-shaped steel pipe is provided with a conical inclined part, and the inclined angle of the inclined part is consistent with the inclined angle of the inner wall of the inner pile tip.
As a preferable scheme of the invention, a limit step is formed in the middle of the claw-shaped steel pipe, a limit iron plate matched with the limit step is arranged at the top of the inner pile tip, the limit step is abutted with the limit iron plate, and the limit iron plate is connected with the inner pile tip by adopting a punching bolt, so that the inner pile tip is convenient to detach, maintain and clear mud.
As a preferable scheme of the invention, the side wall of the inner pile tip is provided with a groove, and the sliding bearing block is rotationally matched in the groove and is connected with the claw-shaped steel pipe.
As a preferable scheme of the invention, the bottom of the outer sleeve is a downward pile shoe, and the inclination angle of the pile shoe is consistent with that of the sliding bearing block.
As a preferable scheme of the invention, a built-in pressurizing limiting step is formed at the position, close to the top of the inner pile tip, of the bottom pile shoe of the outer sleeve, and the limiting step can be matched with a built-in hydraulic hammering pile hammer to apply force to the outer sleeve when the static pile machine cannot press down the outer sleeve.
As a preferable scheme of the invention, the gap single side between the claw-shaped steel pipe and the inner pile tip is >2mm.
As a preferable scheme of the invention, the surface of the inner pile tip is coated with an antioxidant material layer.
The static pressure pipe pile sinking device with the recoverable pile tip is not only limited to a bored pile, but also applicable to CFG piles (cement fly ash gravel piles), immersed tube sand piles and immersed tube sand stone piles, and can be used in the aspects of pile casing of immersed tube embedded bored piles, immersed tube soil squeezing, water draining and reinforcing and the like.
A construction method of a static pressure pipe pile sinking device with a recoverable pile tip comprises the following steps:
Firstly, preparing construction, namely fully preparing equipment, tools and objects which are needed to be used for construction, flattening and compacting a construction site, cleaning sundries, removing soft soil, and measuring the center position of a pile;
Secondly, aligning pile foundations, namely positioning a pile machine and aligning a pile pipe, wherein the pile machine is positioned, namely after the static pile machine is installed and debugged, the static pile machine is moved to a pile position, so that the center of the pile pipe is basically aligned with a small wood pile for marking the pile position on the ground, and the static pile machine is leveled;
Thirdly, static pressure piling, namely pressing the assembled inner pile tip, the outer sleeve, the sliding bearing block and the claw-shaped steel pipe into foundation soil by the pressure of the outer sleeve through a static pile pressing machine;
and step four, pulling out the pile tip to form a hole, and after the inner pile tip reaches the designed elevation, driving the claw-shaped steel pipe to move upwards through a steel wire rope by a crane on the static pile press, so that the sliding bearing block is retracted, and when the claw-shaped steel pipe is lifted up to the limit steel plate, continuing to lift the claw-shaped steel pipe, so that the whole inner pile tip is lifted out of the hole.
Step five, hanging a reinforcement cage in the outer sleeve;
Step six, pouring concrete into the lower guide pipe, and pouring filling materials such as sand and stone materials;
step seven, the outer sleeve is pulled out through high-frequency vibration or a hydraulic pile pulling machine;
and eighth, piling.
The beneficial effects of the invention are as follows:
1. the invention has simple structure and reasonable design, the acting force of the inner pile tip and the outer sleeve is perfectly transmitted through the sliding bearing block, so that the soil body is extruded under the pressure of the static pile machine, and after reaching the elevation of the pile bottom, the pile tip is completely taken out through the crane on the static pile machine, and meanwhile, the invention has the characteristics of convenient installation, safety, reliability and the like;
2. By adopting the technical scheme, the invention improves the construction efficiency and quality, reduces the construction cost, shortens the construction period, completely reduces the pollution of slurry outward transportation treatment to the environment, is worthy of popularization and use, and effectively reduces the influence of the construction of the bored pile on the surrounding environment;
3. The full-length steel sleeve can avoid the problems of mud flow, sand flow and the like, basically ensure that most foundation soil layers realize dry operation concrete pouring, and can greatly improve the quality of pile body concrete by combining vibration tube drawing;
4. The pile tip has simple structural design, does not need a rigid force transmission piece to shrink and recycle the pile tip, is energy-saving and environment-friendly, is suitable for being used in places with wide places in cities, and has the advantages of convenient construction operation and no pollution, and other equipment are all existing equipment;
5. the inner pile tip has strong penetrating power, good overall structure, strong site workability and quick connection, can better combine the inner pile tip with a built-in hydraulic hammer for use, can also combine the inner pile tip with a rotary pile digger for use in rock stratum excavation, is suitable for the requirements of different engineering and geological conditions, and greatly improves the construction utilization rate;
6. the invention discloses a pile shoe with a downward outer sleeve bottom, wherein the inclination angle of the pile shoe is consistent with that of a sliding bearing block, the bottom of the outer sleeve can be better connected with the sliding bearing block and an inner pile tip, and the pile shoe is of an inclined structure from top to bottom, wherein the inclination angle of the pile shoe is between five and twenty degrees, so that the sliding bearing block can not move upwards due to too large pressure on a claw-shaped steel pipe when the pile is pressed, and the sliding bearing block can not push an outer steel pipe upwards when the pile is retracted;
7. The surface of the inner pile tip is coated with an antioxidant material layer, so that the inner pile tip is prevented from being buried underground for a long time to generate oxidation.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a use state diagram of an embodiment of the present invention;
The drawing illustrates a steel wire rope 1, an inner pile tip 2, an outer sleeve 3, a sliding bearing block 4, a claw-shaped steel pipe 5, a limiting iron plate 20, a pile shoe 30, an inclined part 50 and a limiting step 51.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically welded, directly connected, indirectly connected via an intermediate medium, or in communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1:
as shown in fig. 1-2, the static pressure pile sinking device with recoverable pile tip provided by the embodiment comprises an outer sleeve 3, an inner pile tip 2 sleeved at the bottom of the outer sleeve 3, a sliding bearing block 4 arranged between the outer sleeve 3 and the inner pile tip 2, a claw-shaped steel pipe 5 sleeved in the inner pile tip 2, the bottom of the claw-shaped steel pipe 5 is connected with the sliding bearing block 4, a steel wire rope 1 is connected to the claw-shaped steel pipe 5, during construction, the steel wire rope 1 is loosened, the claw-shaped steel pipe 5 presses the sliding bearing block out of the pile tip 2 through self weight, the outer sleeve 3 is abutted to the upper part of the sliding bearing block 4, a static pile machine moves downwards through holding the outer sleeve 3, the inner pile tip 2 is driven to synchronously move downwards, after reaching a designed elevation, the steel wire rope 1 connected with the claw-shaped steel pipe 5 is lifted upwards to a limit steel plate 20, the sliding bearing block 4 is retracted inwards to be smaller than the inner diameter of a steel pipe pile shoe, the whole pile tip is lifted out of a pile hole, then steel reinforcement cage concrete (also can be poured into a pile) is lowered, and finally, the pile is pulled out.
The invention has simple structure and reasonable design, and the sliding bearing block 4 is perfectly scaled by arranging the outer sleeve, the inner pile tip and the connecting piece and moving the claw-shaped steel pipe 5 up and down, so that the acting force of the inner pile tip and the outer sleeve is perfectly transferred and unhooked for recycling, the construction benefit of the static pressure sinking pipe pile is improved, and the invention has the characteristics of convenient installation, safety, reliability and the like.
The inner pile tip 2 is smaller than the inner diameter of the outer sleeve 3, the inner pile tip 2 is a hollow cone cast by casting steel, the inner pile tip has strong penetrating power, good overall structure, strong site workability and quick connection, can better combine the inner pile tip with the outer sleeve, is suitable for the requirements of different engineering and geological conditions, and greatly improves the construction utilization rate.
In the embodiment, the single side of the gap between the inner pile tip 2 and the outer sleeve 3 is 2-10 mm, specifically, the single side of the gap between the inner pile tip 2 and the outer sleeve 3 is 5mm, the outer sleeve 3 adopts a full-length steel sleeve, and the problems of mud flow, sand flow and the like can be avoided due to the adoption of the full-length steel sleeve, and the dry operation of the poured concrete can be basically ensured to be realized for most foundation soil layers, and the quality of pile body concrete can be greatly improved by combining or an oil-pressure tube drawing machine.
The bottom of the claw-shaped steel pipe 5 is provided with an inclined part 50, the inclined angle of the inclined part 50 is consistent with the inclined angle of the inner wall of the inner pile tip 2, the bottom of the outer sleeve is better jointed with the sliding bearing block 4 and the inner pile tip, and the claw-shaped steel pipe is of a top-down inclined structure, wherein the inclined angle of the claw-shaped steel pipe is between five and twenty degrees, and the claw-shaped steel pipe can better bear force with the ground.
By adopting the technical scheme, the invention improves the construction efficiency and quality, reduces the construction cost, shortens the construction period, is worthy of popularization and use, greatly reduces the problems of slurry discharge or waste soil outward transportation in the construction of the cast-in-place pile, and has little influence on the surrounding environment.
The middle part of the claw-shaped steel pipe 5 is provided with a limiting step, and correspondingly, the top of the inner pile tip 2 is provided with a limiting iron plate 20 matched with the limiting step, the limiting step 51 is abutted against the limiting iron plate 20, and the limiting iron plate 20 is connected with the inner pile tip 2 by adopting a punching bolt, so that the inner pile tip is convenient to detach, maintain and clear mud.
The loop wheel machine on the static pile machine drives wire rope to upwards move, and then drives claw-shaped steel pipe 5 upwards to move, and the slip bearing block 4 of claw-shaped steel pipe 5 bottom is retracted along recess 21, and claw-shaped steel pipe 5 upwards moves along interior pile point 2 inside, and when moving to interior pile point 2 top, spacing step 51 top and spacing portion 20 bottom looks butt can be pulled up interior pile point.
The side wall of the inner pile tip 2 is provided with a groove 21, the sliding bearing block 4 is rotationally matched in the groove 21 and connected with the claw-shaped steel pipe 5, and the sliding bearing block 4 cannot shake left and right and jump up and down due to the fact that the contact surface of the claw-shaped steel pipe 5 and the inner wall of the inner pile tip is good in fit.
The bottom of the outer sleeve 3 is provided with a downward pile shoe 30, the inclination angle of the pile shoe 30 is consistent with that of the sliding bearing block 4, so that the pile shoe 30 is in full-section contact with the sliding bearing block 4, the pressure of soil in the pile pressing process is not caused to slide upwards by the claw-shaped steel pipe 5, and the friction force with the outer sleeve is reduced when the sliding bearing block is retracted.
The single side of the gap between the claw-shaped steel pipe 5 and the inner pile tip 2 is more than 2mm, so that the friction force when the inner pile tip 2 is pulled out is reduced, and the working efficiency is improved.
The surface of the inner pile tip 2 is coated with an antioxidant material layer, so that the inner pile tip is prevented from being buried underground for a long time to generate oxidation.
A construction method of a static pile sinking pipe with recoverable pile tip comprises two working procedures of hole forming and pouring, wherein a static pile machine is used for holding and pressing an outer sleeve 3, the outer sleeve 3 is used for sinking along with an inner pile tip to squeeze soil to form hole, the single side of a gap between the inner pile tip 2 serving as main soil squeezing equipment and the outer sleeve 3 is 2-10mm, and the full-length steel sleeve is adopted as the sleeve.
The static pressure pipe pile sinking device with the recoverable pile tip is not only limited to a bored pile, but also applicable to CFG piles (cement fly ash gravel piles), immersed tube sand piles and immersed tube sand stone piles, and can be used in the aspects of pile casing of immersed tube embedded bored piles, immersed tube soil squeezing, water draining and reinforcing and the like.
The inner pile tip 2 and the outer sleeve 3 sink into foundation soil under the pressure of a static pile press, as shown in fig. 1, and the pouring construction steps of the hole forming and concrete pile are as follows:
Firstly, preparing construction, namely fully preparing equipment, tools and objects which are needed to be used for construction, flattening and compacting a construction site, cleaning sundries, removing soft soil, and measuring the center position of a pile;
Secondly, aligning pile foundations, namely positioning a pile machine and aligning a pile pipe, wherein the pile machine is positioned, namely after the static pile machine is installed and debugged, the static pile machine is moved to a pile position, so that the center of the pile pipe is basically aligned with a small wood pile for marking the pile position on the ground, and the static pile machine is leveled;
Driving the assembled inner pile tip 2, the outer sleeve 3, the sliding bearing block 4 and the claw-shaped steel pipe 5 into foundation soil by the pressure of a static pile driver acting on the outer sleeve 3;
step four, lifting the steel wire rope 1 to drive the claw-shaped steel pipe 5 to the position of the limiting steel plate 20 through a crane on the static pile press, and continuously lifting the steel wire rope to drive the whole pile tip to lift out of the outer sleeve to form a hole;
Step five, hanging a reinforcement cage in the outer sleeve 3;
Step six, pouring concrete
Step seven, the outer sleeve 3 is pulled out through high-frequency vibration or a hydraulic pile pulling machine;
and eighth, piling.
Example 2:
The construction steps of hole forming and concrete pile pouring are as follows:
Firstly, preparing construction, namely fully preparing equipment, tools and objects which are needed to be used for construction, flattening and compacting a construction site, cleaning sundries, removing soft soil, and measuring the center position of a pile;
Secondly, aligning pile foundations, namely positioning a pile machine and aligning a pile pipe, wherein the pile machine is positioned, namely after the static pile machine is installed and debugged, the static pile machine is moved to a pile position, so that the center of the pile pipe is basically aligned with a small wood pile for marking the pile position on the ground, and the static pile machine is leveled;
Driving the assembled inner pile tip 2, the outer sleeve 3, the sliding bearing block 4 and the claw-shaped steel pipe 5 into foundation soil by the pressure of a static pile driver acting on the outer sleeve 3;
step four, lifting the steel wire rope 1 to drive the claw-shaped steel pipe 5 to the position of the limiting steel plate 20 through a crane on the static pile press, and continuously lifting the steel wire rope to drive the whole pile tip to lift out of the outer sleeve to form a hole;
pouring concrete;
Step six, the outer sleeve 3 is pulled out through high-frequency vibration or a hydraulic pile pulling machine;
step seven, pressing the reinforcement cage vibration into the concrete pile through high-frequency vibration;
and eighth, piling.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention, and thus the invention is not to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the terms of the steel wire rope 1, the inner pile tip 2, the outer sleeve 3, the sliding bearing block 4, the claw steel pipe 5, the limiting iron plate 20, the pile shoe 30, the inclined part 50, the limiting step 51, etc. are used more herein, the possibility of using other terms is not excluded. These terms are only used to more conveniently describe and explain the nature of the invention and should be construed in a manner consistent with their spirit and scope.
Claims (6)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011060282.6A CN112343045B (en) | 2020-09-30 | 2020-09-30 | Static pressure pipe pile device with recyclable pile tip and construction method |
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| CN202011060282.6A CN112343045B (en) | 2020-09-30 | 2020-09-30 | Static pressure pipe pile device with recyclable pile tip and construction method |
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| CN112343045B true CN112343045B (en) | 2024-12-13 |
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| CN114197472B (en) * | 2021-12-09 | 2023-03-28 | 中煤第三建设（集团）有限责任公司 | Vibration auxiliary device for small-diameter tree root pile and using method thereof |
| CN117071556B (en) * | 2023-10-13 | 2024-02-09 | 兴化市杰俊机械有限公司 | Ocean pile driving ship |
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| CN213952217U (en) * | 2020-09-30 | 2021-08-13 | 浙江岩科建设有限公司 | Static pressure pipe pile sinking device with recyclable pile tip |
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| CN2274652Y (en) * | 1996-09-21 | 1998-02-18 | 曹沂风 | Pile head restoring apparatus for concrete piles |
| CN1240910C (en) * | 2003-11-27 | 2006-02-08 | 黄强 | Immersed tube grout pile construction process and pile tip bearing capacity reinforcement equipment |
| JP5067931B2 (en) * | 2007-07-13 | 2012-11-07 | 株式会社江藤建設工業 | Steel pipe pile tip extension structure and steel pipe pile tip extension construction method |
| CN209508955U (en) * | 2019-01-23 | 2019-10-18 | 广西建工集团基础建设有限公司 | A kind of prefabricated pile that pile top can be recycled |
| CN111350181B (en) * | 2020-03-26 | 2021-06-22 | 上海杰地建筑设计有限公司 | Precast concrete tubular pile only bearing anti-pulling effect |
| CN111519617A (en) * | 2020-06-03 | 2020-08-11 | 浙江岩科建设有限公司 | Full-casing hydraulic hammering soil-squeezing cast-in-place pile device and construction method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN213952217U (en) * | 2020-09-30 | 2021-08-13 | 浙江岩科建设有限公司 | Static pressure pipe pile sinking device with recyclable pile tip |
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| Publication number | Publication date |
|---|---|
| CN112343045A (en) | 2021-02-09 |
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