CN112482368A - Integrated tubular pile and vertical controller thereof - Google Patents
Integrated tubular pile and vertical controller thereof Download PDFInfo
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- CN112482368A CN112482368A CN202011500974.8A CN202011500974A CN112482368A CN 112482368 A CN112482368 A CN 112482368A CN 202011500974 A CN202011500974 A CN 202011500974A CN 112482368 A CN112482368 A CN 112482368A
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- 238000010276 construction Methods 0.000 claims abstract description 29
- 239000011178 precast concrete Substances 0.000 claims abstract description 6
- 239000002002 slurry Substances 0.000 claims description 73
- 239000002689 soil Substances 0.000 claims description 30
- 239000004567 concrete Substances 0.000 claims description 22
- 239000012530 fluid Substances 0.000 claims description 21
- 230000000452 restraining effect Effects 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 12
- 239000002699 waste material Substances 0.000 claims description 8
- 238000007667 floating Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 230000008602 contraction Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 239000007779 soft material Substances 0.000 claims description 3
- 238000009417 prefabrication Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 14
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000004568 cement Substances 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000010813 municipal solid waste Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
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- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000007812 deficiency 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
- E02D5/50—Piles comprising both precast concrete portions and concrete portions cast in situ
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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
- E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
- E02D5/523—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments
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- Piles And Underground Anchors (AREA)
Abstract
The invention relates to the technical field of pile foundations, and discloses a vertical controller for an integrated tubular pile; the integrated tubular pile comprises a set of precast concrete component and pile nail, the precast concrete component contains the stake slat, the antiskid restraint ring, the end pressure seat, the vertical hoop of stake slat is arranged at the periphery of annular tubular pile, the end pressure seat is located the bottom of integrated tubular pile, bear the end resistance, fix the stake slat at vertical and radial restraint, the antiskid restraint ring level is to setting up the position of splicing from top to bottom at the stake slat and restraint the vertical and radial displacement of stake slat, be provided with vertical accuse ware on the end pressure seat, a vertical position for controlling the pile body in the stake hole. The vertical controller technology for the integrated tubular pile disclosed by the invention has the advantages of reducing cost, facilitating construction, saving energy, protecting environment, improving quality, reducing field manual operation and having remarkable economic and social benefits.
Description
Technical Field
The invention relates to the technical field of pile foundations, in particular to an integrated tubular pile and a vertical controller thereof.
Background
The large-diameter pile is widely applied to foundations of buildings, bridges and large structures, and at present, after a hole is formed in a site, a reinforcement cage is arranged in the pile hole, and concrete is poured in the site. The method has the disadvantages of difficult construction, difficult guarantee of the pouring quality of the concrete and slow construction speed, and particularly in some karst cave areas, the concrete is easy to run off into soil (rock) caves before solidification, thereby causing quality accidents. And for some large-diameter uplift piles, steel bars are configured more, and the construction cost is high. Furthermore, the core concrete of large diameter concrete piles is essentially wasted, which also results in waste of material.
The existing precast tubular pile is generally small in diameter, belongs to mechanical embedded construction, and is difficult to apply when meeting rock strata or hard soil layers.
These deficiencies and the need for improvements and improvements have provided a better solution to the problems associated with the use of precast concrete elements using in situ pore-forming techniques.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a novel pile foundation technology which is more cost-saving and improves the construction quality, namely an integrated tubular pile and a vertical controller thereof.
In order to achieve the purpose, the integrated tubular pile and the vertical controller thereof adopt the following technical scheme:
the integrated tubular pile comprises a prefabricated concrete member and a pile body manufactured on site, wherein the prefabricated concrete member forms a pile body, the pile body comprises pile ribbon boards, anti-sliding restraining rings and end pressing seats, and the pile ribbon boards are arranged in a vertical strip shape and vertically arranged on the periphery of the annular pile body; the anti-sliding restraint ring is horizontally arranged, the pile strip plates are spliced in the vertical range of the inner side of the anti-sliding restraint ring, and the anti-sliding restraint ring wraps the pile body and restrains radial outward movement and vertical dislocation of the pile strip plates; the pile nail is coated outside the pile ribbon board and is coated by soil mass on the wall of the pile hole, the pile nail transmits positive pressure and frictional resistance of the soil mass on the wall of the pile hole, and the anti-sliding restraining ring prevents the pile nail from sliding vertically along the pile body; the end pressure seat is arranged at the bottom of the pile body and comprises a bottom plate for bearing the pile end pressure of the tubular pile and the vertical pressure of the pile ribbon board, and a vertical controller is arranged on the bottom plate and used for controlling the vertical position of the pile body in the pile sinking process.
The pile strip plate is provided with an inner plate surface, an outer plate surface, an upper end surface, a lower end surface, a left end surface, a right end surface and a left end surface (the surface with the smaller area), wherein the inner plate surface faces the center of the tubular pile, the outer plate surface faces a soil body of a wall of the tubular pile hole, the upper end surface and the lower end surface prop against the anti-slip restraining ring, or the upper end surface and the lower end surface directly prop against, the inner plate surface and the outer plate surface are cambered surfaces or planes, and the pile strip plate has a set thickness, so that the left end surface; the radial direction refers to the radial direction from the center of the pipe pile to the periphery, and the movement towards the center is called inward movement, otherwise called outward movement; when the interior face of stake slat is the cambered surface, can increase the floor that sets up perpendicular to face tangent plane, the floor sets up to the level to or vertical.
The anti-skid restraining ring is an annular member arranged horizontally, can be arranged into a whole, and also can be formed by assembling segmented prefabricated arc sections or straight sections; the vertical section of the anti-sliding restraint ring can be T-shaped or rectangular, when the anti-sliding restraint ring is rectangular, the inner side surface is provided with an upper slope surface and a lower slope surface (namely pentagon), the outer plate surface of the pile strip plate in contact with the slope surfaces is also provided with the slope surfaces, and the anti-sliding restraint ring can effectively prevent the pile strip plate from vertically moving; the slope surface is a surface which forms a certain included angle with the vertical direction.
The anti-sliding restraining ring is a multifunctional component, can restrain radial outward movement of the pile strip plate, can restrain vertical dislocation of the pile strip plate, can prevent vertical sliding of the pile nail, is integral guarantee in the whole integrated tubular pile installation and hoisting process, and is an essential component and link for reliable stress and effective work of the integrated tubular pile; the friction force of the soil body on the wall of the pile hole is transmitted to the pile nail, the pile nail is transmitted to the anti-sliding restraining ring, the anti-sliding restraining ring is transmitted to the pile ribbon board, and the pile ribbon board is transmitted to the end pressing seat.
Because integrated form tubular pile construction will become the hole earlier, put into the tubular pile after, must leave the clearance between tubular pile and the stake hole wall soil body, this makes the unable performance of stake side frictional resistance of tubular pile, and the effect of resistance to plucking, resistance to compression or horizontal load resistance is discounted greatly or is not present, so the stake first be indispensable, indispensable biography power component, do not have the stake first, integrated form tubular pile will be unable effective performance.
The pile shell is formed by placing the prefabricated concrete member into the pile hole after the prefabricated concrete member is assembled, arranging the pile lath, the anti-sliding constraint ring and the pile hole
Cementing materials (concrete or cement paste or cement soil) are filled between the soil bodies of the pile hole walls, an expanding agent is added if necessary, the filled cementing materials form pile shells after solidification, and the positive pressure and the frictional resistance of the soil bodies of the pile hole walls are transmitted; optionally, before the prefabricated concrete pile body is placed, a bag formed by soft materials can be installed on the periphery of the pile ribbon board and the anti-slip constraint ring, grouting is performed in the bag to form a pile nail, and in a stratum with a soil (rock) hole, the bag limits slurry loss and ensures construction quality of the pile nail.
The end pressure seat, set up to the precast concrete component who has the upper concave of bottom plate, the stake slat sets up in the upper concave is pressed the radial restraint of seat and is retrained in the bottom by the end, for bearing the component of stake end resistance (when for receiving the stake), when for resistance-lifting stake and horizontal load-bearing stake, integrated form tubular pile inside can set up to filler (building rubbish or earth), the end pressure seat bears the gravity of filler to increase integrated form tubular pile resistance to plucking or antidumping ability.
The end pressure seat is a multifunctional component, restrains the fixed pile ribbon board, bears the end resistance and the gravity of the filler, and can be provided with an integrated vertical position controller during pile sinking of the tubular pile, namely a vertical controller for short.
The pile strip plate, the anti-sliding restraint ring and the end pressure seat are integrated into a pile body by tensioning and locking steel strands.
The vertical controller comprises a slurry controller and a controller, wherein the slurry controller is arranged at a vertical hole in the bottom plate of the end pressure seat, a gap is arranged between the slurry controller and the wall of the vertical hole, the slurry outside the pile body is adjusted to enter the pile body by controlling and adjusting the opening and closing of the gap between the slurry controller and the wall of the vertical hole, the height difference of the slurry inside and outside the pile body is controlled, the relation between the self weight of the pile body and the buoyancy force borne by the pile body is controlled, and the controller is connected with a ground control device or the slurry controller to control the gap between the slurry controller and the wall of the hole; the vertical controller controls the vertical position of the pile body, and the effect of small pulse is achieved.
The vertical controller is a floating weight type vertical controller, or a weight pulling type vertical controller, or a bag valve type vertical controller.
The floating weight type vertical controller is characterized in that the slurry controller is arranged into a hollow and closed cone-shaped hard shell, a vertical hole is a horn mouth hole with a large lower part and a small upper part, the lower end of the slurry controller is arranged into a cone shape which is attached to the vertical hole, and a set gap is reserved; the upper end of the slurry controller is connected with a slurry applying controller, the slurry applying controller is provided with a fluid channel which can be a flow control pipe, the flow control pipe is connected with fluid control equipment (a grouting pump, a compressor and the like) on the ground, the flow control pipe controls and adjusts the amount of fluid in the vertical controller, the sinking and floating of the vertical controller are further adjusted, and the set gap opening and closing are controlled, so that the height difference of slurry inside and outside the pile body is adjusted, and the vertical position of the pile body is controlled; the slurry controller can be made of plastic, metal and other materials, and the flow control pipe is made of plastic or rubber materials.
The flow control pipe is a double pipe, one pipe is communicated with fluid, the other pipe is communicated with gas, and the adjustment of the fluid in the slurry control device is conveniently realized.
The construction of integrated form tubular pile, at first will be at the internal pore-forming (stake hole) of site soil, be mud in the stake hole of high water level area, the integrated form tubular pile body is according to the position segmentation equipment of antiskid restraint ring, and in the stake hole is sunk one by one to the segmentation, the stake hole is arranged in to the tubular pile body of assembling earlier, because end pressure seat bottom seal, stake internal portion cavity, the tubular pile of putting into earlier can suspend in certain elevation position, for the reasonable elevation of control tubular pile top in order to make things convenient for the equipment of follow-up tubular pile prefabricated component, just need a certain amount of mud to get into the internal cavity of stake, the difference in height of the inside and outside mud of stake (buoyancy promptly) and the dead weight relation of tubular pile rationally set up, just can control the pile top elevation; the volume of fluid (slurry or water and the like) in the slurry controller is controlled on the ground through the slurry applying and controlling device, and the slurry controller is sunk and floated, and the gap is opened and closed, so that the amount of the slurry entering the cavity in the pile body from the slurry outside the pile body can be controlled; when the dead weight of the slurry controller and the fluid inside the slurry controller is larger than the buoyancy force borne by the slurry controller, the slurry controller sinks, a gap is formed between the slurry controller and the vertical hole of the bottom plate of the end pressing seat, slurry outside the pile body enters the cavity inside the pile body through the gap, otherwise, the gap is closed, and the slurry is blocked from entering the cavity inside the pile body; the vertical controller can replace a hoisting frame and hoisting equipment in pile sinking, reduces the investment of construction equipment, reduces the construction cost and enables the integrated tubular pile to be more convenient to assemble on the ground.
The traction weight type vertical controller is characterized in that the slurry controller is arranged into a vertebral column body (made of concrete or steel concrete), a vertical hole is formed in the center of the section of the end pressure base bottom plate, the vertical hole is a horn-shaped hole with a large upper part and a small lower part, and the upper end of the slurry controller is connected with the application controller, is attached to the vertical hole and is reserved with a set gap; the slurry control device is characterized in that the application and control device is arranged as a traction rope, the traction rope upwards pulls the slurry control device, the gap is opened, slurry enters the pile body, otherwise, the slurry control device sinks by self weight, and the gap is closed to prevent slurry from entering the pile body.
The slurry controller is a hollow closed bag (a bag is used as a valve), which can be filled with fluid, the bag is made of elastic soft material, the bag is provided with a fixed frame (made of metal or chemical materials) with a set size, the middle part of a vertical hole on a bottom plate of the end pressure seat is provided with an arc-shaped groove which is concave to the periphery, the fixed frame fixes the bag at the bottom end of the arc-shaped groove and limits the contraction range of the bag to ensure the set range of the gap between the bag and the wall of the arc-shaped groove, and the slurry controller is used for injecting fluid (liquid, gas and the like) into the bag, propping open the bag and then attaching the bag to the inner wall of the arc-shaped groove, so that the slurry at the periphery of the pile body is prevented from entering the; on the contrary, when the fluid is pumped out, the volume of the bag is contracted, a gap is formed between the bag and the wall of the arc-shaped groove, and the slurry enters the pile body; the application and control device is arranged as a flow control pipe, and the flow control pipe adjusts the volume of fluid in the slurry control device.
Optionally, the end pressing base may be a hollow precast concrete member having an internal closed space, and has a function of adjusting buoyancy applied to the pile body.
The vertical controller is used for suspending the assembled part integrated tubular pile at a set vertical position, so that the operating condition of subsequent assembly is provided, hoisting equipment and a hoisting frame are replaced, and construction is facilitated.
Compared with the prior art, the integrated tubular pile and the vertical controller thereof have the advantages that:
1. saving material, reducing cost: compared with the existing large-diameter cast-in-place pile, the integrated tubular pile and the vertical controller thereof disclosed by the invention have the advantages that the pile body is hollow, concrete is saved, and more than half of steel is saved by adopting high-strength prestressed steel bars when the pile is an uplift pile; for traditional precast tubular pile, the standard component is miniaturized, and the repetition rate greatly improves, and the cost of sharing of mould when having reduced prefabricated preparation more has the advantage of preparation, storage and cost of transportation than whole prefabricated major diameter tubular pile.
2. The quality is better: compared with the existing large-diameter cast-in-place pile, the integrated pipe pile and the vertical controller thereof disclosed by the invention have the advantages that the manufacture of the prefabricated part is completed on the ground or in a factory, the quality is more reliable and the detection is convenient, the pile nail with the bag can ensure the pile-forming quality of a complex stratum, and particularly, the quality accident that cast-in-place pile concrete runs off to a soil body with defects such as a soil (rock) hole and the like is avoided.
3. The construction is convenient, the advantages of the assembly type are brought into play, the strategic direction of industrial upgrading of the construction industry is met, and the method has wide social benefits: the integrated tubular pile and the vertical controller thereof disclosed by the invention are split into small components for prefabrication, are convenient to store and transport, can be used for prefabricating concrete components, reduce the engineering quantity of on-site reinforcement and concrete wet operation, improve the building industrialization degree, and provide a better choice for coping with labor cost rise and the dilemma of labor waste in a building site.
4. Environmental protection and energy conservation: the integrated tubular pile and the vertical controller thereof disclosed by the invention can be used for filling building garbage, waste earthwork and other wastes in a hollow space inside the tubular pile, particularly for a large-diameter tubular pile, are beneficial to the reduction of the building garbage in a construction site, have the advantage of environmental protection, save concrete and steel, save energy and have the advantage of energy conservation.
5. The construction is convenient: the vertical controller can replace hoisting equipment and a hoisting frame due to the arrangement and the use of the vertical controller, construction is convenient, and the input cost of the construction equipment is saved.
In a word, the integrated tubular pile and the vertical controller thereof have obvious improvement on the aspects of energy conservation, environmental protection, engineering quality, economy, convenience and the like compared with the prior art.
Drawings
Fig. 1 is a side elevation view of an integrated tube pile of the present invention.
Fig. 2 is a vertical cross-sectional view of the integrated pipe pile of the present invention.
Fig. 3 is a horizontal cross-sectional view of the position relationship between the vertical controller and the end pressure seat of the integrated tubular pile of the invention.
Fig. 4 is a vertical cross-sectional view of the position relationship between the vertical controller and the end pressure seat of the integrated pipe pile of the invention.
Fig. 5 is a vertical cross-sectional view of the floating weight type vertical controller and the end pressure seat of the integrated pipe pile of the invention.
Fig. 6 is a vertical cross-sectional view of the weight pulling type vertical controller and the end pressure seat of the integrated pipe pile of the invention.
Fig. 7 is a vertical cross-sectional view of the bag valve type vertical controller and the end pressure seat of the integrated pipe pile of the invention.
Reference numerals:
1 pile lath, 2 antiskid restraint rings, 3 pile shells, 4-end pressure seats, 5 pile hole walls, 6 vertical controllers, 7 mud, 8 gaps, 9 fluid, 61 force and control devices, 62 pulp control devices and 621 fixed frames.
Detailed Description
In order to clearly understand the technical contents of the present invention, the following examples are given in detail.
Example 1
Referring to fig. 1-7, the pile strip plate 1 is vertically arranged on the periphery of the tubular pile, the inner side plate surface faces to the center of the tubular pile, the adjacent left and right end surfaces are mutually tightly pressed and automatically prevented from moving inwards, and the upper and lower end surfaces are mutually tightly pressed or tightly pressed against the anti-slip restraining ring 2; the anti-sliding restraining ring 2 arranged horizontally restrains the outward movement or the vertical dislocation of the pile ribbon board 1 horizontally and vertically to form an annular pile body, a pile shell 3 is arranged on the outer side of the pile body, the annular pile body is arranged in a notch on the upper surface of the end pressing seat 4 and is limited by the end pressing seat 4 to move horizontally and radially and vertically, a pile hole wall 5 soil body is arranged on the outer side of the pile shell 3, the pile ribbon board 1, the anti-sliding restraining ring 2 and the end pressing seat 4 are arranged in a pile hole which is completed in advance, a flowing adhesive material is arranged among the pile ribbon board 1, the anti-sliding restraining ring 2 and the soil body of the pile hole wall 5, the adhesive material can be concrete or cement paste or cement soil, the adhesive material forms the pile shell 3 after being solidified, and transmits the positive pressure and the vertical frictional resistance of the soil body of the pile hole wall 5.
The vertical controller 6 is used for sinking piles in high water level areas, slurry 7 is filled in pile holes, the amount of the slurry 7 outside the pile body entering the slurry 7 inside the pile body is controlled by using the vertical controller 6 arranged at the center of the vertical hole of the end pressure seat 4, and the height difference of the slurry 7 inside and outside the pile body is controlled, so that the relation between the self weight of the pile body and the buoyancy force borne by the pile body is adjusted, and the vertical position of the annular pile body in the pile holes is controlled; an adjustable gap 8 is arranged between the vertical controller 6 and the vertical hole, the vertical controller 6 comprises a pressure controller 61 and a pulp controller 62, the vertical controller 6 can be a floating vertical controller or a traction vertical controller or a bag valve type vertical controller, and when the vertical controller is the floating vertical controller or the bag valve type vertical controller, the pulp controller 62 can be filled with fluid 9.
To the vertical accuse ware of superficial weight formula, it has vertical hole to reserve in the 4 bottom plates of end pressure seat, and vertical hole is the reservation hole of horn mouth shape, uses the volume of accuse ware 61 control accuse thick liquid ware 62 inside fluid 9 to the clearance of accuse thick liquid ware 62 and 4 bottom plates of end pressure seat is controlled, and the tight end in top presses seat 4 to prevent that the external mud 7 of stake from getting into the stake internally, otherwise, accuse thick liquid ware 62 and the separation of end pressure seat 4, and the external mud 7 of stake is followed clearance 8 get into in the tubular pile.
For the bag valve type vertical controller, an arc-shaped groove which is concave to the periphery is arranged in the middle of a vertical hole in a bottom plate of the end pressure seat 4, the slurry controller 62 is set to be a bag and provided with a fixing frame 621, the fixing frame 621 fixes the bag at the bottom end of the arc-shaped groove and limits the contraction range of the bag, the set range of a gap 8 between the bag and the wall of the arc-shaped groove is ensured, fluid can be injected into the bag by using the slurry controller 61, the fluid can be liquid or gas and the like, the bag is propped open and then is attached to the inner wall of the arc-shaped groove, the mud on the periphery of the pile body is blocked from entering the pile body, otherwise, the fluid is pumped out, the volume of the bag is contracted, the gap 8 is formed between the bag.
Optionally, for the weight-pulling type vertical controller, the upper end of the pulp controller 62 is connected with the pressure controller 61, the pressure controller 61 is a pulling rope, the pressure controller 61 is attached to a vertical hole of the end pressure seat bottom plate, the vertical hole is a horn-shaped hole, and a set gap 8 is reserved; the slurry controller 62 is pulled upwards by the pressure controller 61, the gap 8 is opened, the slurry 7 enters the pile body, otherwise, the slurry controller 61 sinks by the self weight, and the gap 8 is closed, so that the slurry is prevented from entering the pile body.
Example 2
A construction method of a vertical controller for an integrated tubular pile comprises the following steps:
the first step is as follows: forming a hole in a soil body of a field at a preset position by adopting mechanical equipment to form a pile hole;
the second step is that: assembling the end pressing seat, the pile ribbon board and the anti-sliding restraint ring to form a first section, namely the annular pile body of the lowest section, and placing the first section into the pile hole;
the third step: using a vertical controller to adjust the vertical position of the first section of annular pile body, and then continuously assembling the pile ribbon board and the anti-sliding restraint ring to form a second section of annular pile body;
the fourth step: adjusting the vertical position of the assembled annular pile body by using a vertical controller, then continuously assembling the pile ribbon board and the anti-sliding restraint ring to form a third section of annular pile body, repeating step by step, and placing the complete annular pile body into a set elevation in the pile hole;
the fifth step: stretching and locking all prefabricated components of the pipe pile to form a whole, constructing a pile nail, installing a bag of the pile nail in the second, third and fourth steps if necessary, and grouting in the bag to form the pile nail;
and a sixth step: and filling soil or construction waste into the pipe pile according to the requirement.
Example 3
A construction method of a vertical controller for an integrated tubular pile comprises the following steps:
the first step is as follows: forming a hole in a soil body of a field at a preset position by adopting mechanical equipment to form a pile hole;
the second step is that: assembling the end pressing seat, the pile ribbon board and the anti-sliding restraint ring, and tensioning and locking each prefabricated part of the tubular pile to form a complete annular pile body;
the third step: using a vertical controller to adjust the vertical position of the integral annular pile body, and placing the integral annular pile body into a set elevation in the pile hole;
the fourth step: constructing a pile nail, installing a bag of the pile nail in the second step if necessary, and grouting in the bag to form the pile nail;
the fifth step: and excavating the earthwork, and filling soil or construction waste into the pipe pile according to the requirement after the earthwork reaches a set elevation.
Compared with cast-in-place piles and large-diameter prefabricated pipe piles, the integrated pipe pile and the vertical controller thereof provided by the invention have the advantages that the construction is convenient, the energy is saved, the environment is protected, the cost is reduced, the construction quality is improved, the assembly rate is improved, the economic performance, the convenience, the social benefit and the like are obviously improved compared with the prior art, the social benefit and the economic benefit are more obvious, and the industrial upgrading of the building industrialization is further promoted.
In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.
Claims (10)
1. The vertical controller for the integrated tubular pile is characterized in that the integrated tubular pile comprises a prefabricated concrete component and a pile shell manufactured on site, the prefabricated concrete component forms a pile body, and the pile body comprises a pile strip plate, an anti-sliding restraining ring and an end pressing seat; the pile ribbon board is arranged into a vertical strip shape and is vertically arranged on the periphery of the pile body; the anti-sliding restraint ring is horizontally arranged, the pile strip plates are spliced in the vertical range of the inner side of the anti-sliding restraint ring, and the anti-sliding restraint ring is externally wrapped with the pile strip plates and restrains radial outward movement and vertical dislocation of the pile strip plates; the pile nail covers the pile ribbon board and is covered by a pile hole wall soil body, the pile nail transmits the positive pressure and the frictional resistance of the pile hole wall soil body, and the anti-sliding restraint ring prevents the pile nail from sliding vertically along the pile body; the end pressure seat is arranged at the bottom of the pile body and used for bearing pile end pressure and vertical pressure of the pile ribbon board, the end pressure seat comprises a bottom plate, and a vertical controller is arranged on the bottom plate and used for controlling the vertical position of the pile body in the pile sinking process.
2. The vertical controller for integrated pipe piles according to claim 1, wherein the end pressure seat is a precast concrete member having an upper recess, and the pile strip is disposed in the upper recess and radially restrained by the end pressure seat and at the bottom.
3. The vertical controller for the integrated tubular pile according to claim 1, wherein the anti-sliding constraining ring is a horizontally arranged annular multifunctional member, and is formed by integral arrangement or segmented prefabrication and assembly, the anti-sliding constraining ring prevents the vertical dislocation and radial outward movement of the pile strip plate, prevents the pile nail from sliding up and down, and transmits the positive pressure and the frictional resistance of the soil body of the pile hole wall transmitted by the pile nail to the pile strip plate.
4. The vertical controller for integrated pipe piles according to claim 1, wherein the pile nail is formed by installing a bladder made of soft material on the periphery of the pile strip plate and the anti-slip restraining ring in advance before the prefabricated concrete pile body is placed into the pile hole, grouting the bladder to form the pile nail, and limiting slurry loss in the ground with the soil hole by the bladder to ensure construction quality of the pile nail.
5. The vertical controller for the integrated tubular pile according to claim 1, wherein the vertical controller comprises a slurry controller and a slurry applying controller connected with the slurry controller, and the slurry applying controller is connected with a control device on the ground; the bottom plate of the end pressure seat is provided with a vertical hole, the slurry controller is arranged in the vertical hole, a gap is arranged between the slurry controller and the vertical hole wall, the slurry controller and the hole wall are controlled to open and close through the slurry controller, slurry outside the tubular pile is adjusted to enter the pile body, the height difference of the slurry inside and outside the pile body is controlled, and the self weight of the pile body and the buoyancy of the pile body are controlled.
6. The vertical controller for the integrated tubular pile according to claim 5, wherein the vertical controller is a floating weight type vertical controller, the slurry controller is arranged into a hollow and closed cone-shaped hard shell, the vertical hole is a bell mouth hole with a large lower end and a small upper end, the lower end of the slurry controller is arranged into a cone shape which is attached to the vertical hole, and a set gap which can move up and down is reserved; the flow control pipe is connected with the fluid control equipment on the ground; the accuse flow pipe control adjust the inside fluidic volume of accuse thick liquid ware, further adjust the ups and downs of accuse thick liquid ware to the clearance of control settlement open and shut, thereby adjust the difference in height of the inside and outside mud of tubular pile, the vertical position of control pile body.
7. The vertical controller for the integrated tubular pile according to claim 5, wherein the vertical controller is a weight pulling type vertical controller, the slurry controller is arranged to be a vertebral column body, the vertical hole is a flared hole with a large upper part and a small lower part, and the slurry controller is attached to the vertical hole and is reserved with a set gap; the slurry control device is characterized in that the application and control device is a traction rope, the traction rope pulls the slurry control device upwards, the gap is opened, slurry enters the pile body, otherwise, the slurry control device sinks by self weight, and the gap is closed to prevent slurry from entering the pile body.
8. The vertical controller for the integrated tubular pile according to claim 5, wherein the vertical controller is a bag valve type vertical controller, the pressure controller is a flow control pipe, the slurry controller is a hollow closed bag capable of being filled with fluid, a fixing frame with a set size is arranged on the bag, an arc-shaped groove recessed to the periphery is arranged in the middle of the vertical hole of the end pressure base bottom plate, the bag is fixed in the arc-shaped groove by the fixing frame, the contraction range of the bag is limited, the set range of the gap between the bag and the groove wall of the arc-shaped groove is ensured, the pressure controller is used for injecting the fluid into the bag, the bag is propped open and then attached to the inner wall of the arc-shaped groove, the mud at the periphery of the pile body is blocked from entering the pile body, otherwise, the fluid is pumped out, the volume of the bag is contracted, the gap is formed between the bag and the groove wall of the.
9. The construction method of the vertical controller for the integrated tubular pile is characterized by comprising the following steps of:
the first step is as follows: forming a hole in a soil body of a field at a preset position by adopting mechanical equipment to form a pile hole;
the second step is that: assembling the end pressing seat, the pile ribbon board and the anti-sliding restraint ring to form a first section of annular pile body, and placing the first section of annular pile body into the pile hole;
the third step: using a vertical controller to adjust the vertical position of the first section of annular pile body, and then continuously assembling the pile ribbon board and the anti-sliding restraint ring to form a second section of annular pile body;
the fourth step: adjusting the vertical position of the assembled annular pile body by using a vertical controller, then continuously assembling the pile ribbon board and the anti-sliding restraint ring to form a third section of annular pile body, repeating step by step, and placing the complete annular pile body into a set elevation in the pile hole;
the fifth step: stretching and locking all prefabricated components of the pipe pile to form a whole, constructing a pile nail, installing a bag of the pile nail in the second, third and fourth steps if necessary, and grouting in the bag to form the pile nail;
and a sixth step: soil or construction waste is filled in the pipe pile.
10. The construction method of the vertical controller for the integrated tubular pile is characterized by comprising the following steps of:
the first step is as follows: forming a hole in a soil body of a field at a preset position by adopting mechanical equipment to form a pile hole;
the second step is that: assembling the end pressing seat, the pile ribbon board and the anti-sliding restraint ring, and tensioning and locking each prefabricated part of the tubular pile to form a complete annular pile body;
the third step: using a vertical controller to adjust the vertical position of the integral annular pile body, and placing the integral annular pile body into a set elevation in the pile hole;
the fourth step: constructing a pile nail, installing a bag of the pile nail in the second step if necessary, and grouting in the bag to form the pile nail;
the fifth step: and excavating the earthwork, and filling soil or construction waste into the pipe pile after the earthwork reaches a set elevation.
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