CN115142458A - Pile foundation capable of controlling horizontal deformation and construction method - Google Patents
Pile foundation capable of controlling horizontal deformation and construction method Download PDFInfo
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- CN115142458A CN115142458A CN202210892286.3A CN202210892286A CN115142458A CN 115142458 A CN115142458 A CN 115142458A CN 202210892286 A CN202210892286 A CN 202210892286A CN 115142458 A CN115142458 A CN 115142458A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
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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
- E02D31/08—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 against transmission of vibrations or movements in the foundation soil
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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
- 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
- E02D5/22—Piles
- E02D5/60—Piles with protecting cases
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Abstract
The invention discloses a pile foundation capable of controlling horizontal deformation and a construction method, wherein the pile foundation capable of controlling horizontal deformation comprises an inner side pile casing, and the inner side of the inner side pile casing is used for construction; the outer side protective cylinder is sleeved outside the inner side protective cylinder, and a gap is formed between the outer side protective cylinder and the inner side protective cylinder; the elastic layer is arranged in the gap, is fixedly connected to the inner side of the outer side protection cylinder and is separable from the inner side protection cylinder; the bottom plate is used for bearing the bottoms of the inner side pile casing and the outer side pile casing; the limiting device is used for connecting the inner side protective cylinder and the outer side protective cylinder, and the limiting device can adjust the size of the interval between the inner side protective cylinder and the outer side protective cylinder based on the flexibility of the elastic layer. The elastic layer is arranged on the inner side protection barrel and the outer side protection barrel, the inner side protection barrel is used for construction and is separable, so that the pile foundation can be properly deformed to reduce the restraint on the pier stud, the whole stress of the upper lower structure is improved, the horizontal displacement of the pile foundation is controlled through the limiting device, the horizontal deformation requirements of different pile foundations are met, and the pile foundation has good adaptability.
Description
Technical Field
The invention relates to the technical field of bridge structure design and reinforcement, in particular to a pile foundation capable of controlling horizontal deformation and a construction method.
Background
The bridge is positioned in an urban river bridge with developed water system, the height of the bridge deck is limited by the height of the peripheral roads, so that the height of part of piers is low, when the flood season comes, the bridge support is soaked, the durability of the support is affected, and the service life of the support is shortened.
And the replacement of the support needs to interrupt traffic, so that the difficulty is high, the cost is high, and some bridges have no operability of support replacement. Structural systems using pier beam consolidation are considered for this purpose. Because the bridge pier of the bridge is generally short, the pier column and the pile foundation internal force are large after the pier beam is solidified, and the stress on the upper lower part structure of the bridge is unfavorable.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the pile foundation with the controllable horizontal deformation, which can effectively control the horizontal deformation of a pile foundation structure, improve the stress of pier columns, pile foundations and an upper structure, improve the overall stability of the pile foundation structure and effectively realize shock absorption.
The invention further provides a construction method of the pile foundation with the controllable horizontal deformation.
According to an embodiment of the first aspect of the invention, the pile foundation with controllable horizontal deformation comprises:
the inner side of the inner side pile casing is used for constructing a pile foundation;
the outer side protective cylinder is sleeved outside the inner side protective cylinder, and a gap is formed between the outer side protective cylinder and the inner side protective cylinder;
the elastic layer is arranged in the gap, fixedly connected to the inner side of the outer side protective cylinder and separable from the inner side protective cylinder;
the bottom plate is used for bearing the bottoms of the inner side pile casing and the outer side pile casing;
and the limiting device is used for mutually connecting the inner side protective cylinder and the outer side protective cylinder and can adjust the size of the interval between the inner side protective cylinder and the outer side protective cylinder based on the flexibility of the elastic layer.
The pile foundation with controllable horizontal deformation according to the embodiment of the first aspect of the invention has at least the following beneficial effects: protect a section of thick bamboo and the outside through the elastic layer setting in the inboard, an inboard protects a section of thick bamboo inboard and is used for construction and separable, make pile foundation can suitably warp and reduced the restraint to the pier stud, thereby the rigidity of whole structural system has been reduced, make pier stud and pile foundation atress reduce, the whole atress of substructure is gone up in further improving, the interval of protecting a section of thick bamboo and an outside through stop device change in the while, the horizontal displacement of control pile foundation, satisfy the horizontal deformation requirement of different pile foundations, pier stud and pile foundation structure to various designing requirements all have good adaptability.
According to the pile foundation with controllable horizontal deformation, the outer casing and the elastic layer are fixedly connected through the adhesive material.
According to the pile foundation with controllable horizontal deformation, the bottom plate is fixedly connected with the outer pile casing, and the inner pile casing is abutted to the bottom plate.
According to the pile foundation with controllable horizontal deformation, a drag reduction layer convenient to separate is arranged between the elastic layer and the inner pile casing.
According to the pile foundation with the controllable horizontal deformation, the limiting device comprises a channel steel and a threaded fastener, two ends of the channel steel are respectively used for fixedly connecting the inner side pile casing and the outer side pile casing, and the threaded fastener is respectively arranged in the channel steel and the inner side pile casing, and the channel steel and the outer side pile casing in a penetrating mode.
According to the pile foundation with the controllable horizontal deformation, in the embodiment of the first aspect of the invention, a plurality of channel steels are arranged, the inner pile casing and the outer pile casing are coaxially arranged, each channel steel is circumferentially arranged in an array by taking the axis of the outer pile casing as a reference, and the threaded fasteners on each channel steel can be independently adjusted.
According to the second aspect of the invention, the construction method of the pile foundation with controllable horizontal deformation comprises the following steps:
arranging an outer pile casing at a position which is circumferentially and externally preset for a preset distance on a pile foundation, wherein the outer pile casing is coaxially arranged with the pile foundation;
attaching an elastic layer to the inner side of the outer side casing, wherein the elastic layer is connected with the outer side casing through a viscous material;
arranging an inner side pile casing on the inner side of the elastic layer, enabling the inner side pile casing to be tightly close to the outer side of the pile body of the pile foundation, and coating a drag reducer between the elastic layer and the inner side pile casing, so that the inner side pile casing can be pulled out after the construction of the pile foundation is finished;
arranging a bottom plate at the bottoms of the outer side pile casing and the inner side pile casing, wherein the bottom plate is only fixedly connected with the bottom of the outer side pile casing and is not required to be connected with the inner side pile casing;
arranging a limiting device at the tops of the outer side pile casing and the inner side pile casing, wherein the limiting device fixes and connects the inner side pile casing and the outer side pile casing, and the limiting device is adjusted to change the distance between the outer side pile casing and the inner side pile casing, control the horizontal displacement of a pile foundation and meet the horizontal deformation requirements of different pile foundations;
the limiting device and the bottom plate form an integral interlayer for the outer side casing, the elastic layer and the inner side casing, and the integral interlayer is laminated into the soil;
constructing a pile foundation in the inner side pile casing, and pouring concrete;
and after the construction of the pile foundation is finished, loosening the limiting device and pulling out the inner side pile casing.
According to the pile foundation method capable of controlling horizontal deformation, the limiting device comprises a channel steel and threaded fasteners, two ends of the channel steel are respectively used for fixedly connecting the inner side pile casing and the outer side pile casing, and the threaded fasteners are respectively arranged in the channel steel and the inner side pile casing, and the channel steel and the outer side pile casing in a penetrating mode.
According to the method for controlling the horizontal deformation of the pile foundation, related soil layer information is obtained through a geological survey report, the pile length of the pile foundation, the length of the inner pile casing and the length of the outer pile casing are determined through surrounding environment information, and the types of the outer pile casing and the inner pile casing, the size of channel steel and the position of a bolt are determined according to the information.
According to the method for controllable horizontal deformation of pile foundation of the embodiment of the second aspect of the invention, the method for pressing the whole interlayer into the soil comprises the following steps: and (4) carrying out measurement and positioning on site, and simultaneously hydraulically sinking the integral interlayer with the bottom plate to a preset depth by using a hydraulic device until the bottom of the outer pile casing reaches a preset elevation.
It is understood that the method for constructing a pile foundation in the second aspect of the present invention has the technical effect of the pile foundation with controllable horizontal deformation as described in the first aspect of the present invention, and thus is not described in detail.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is further described below with reference to the accompanying drawings and examples;
FIG. 1 is a schematic cross-sectional view of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a bridge type arrangement according to an embodiment of the present invention;
fig. 3 is a schematic structural elevation view according to an embodiment of the present invention.
Reference numerals:
the outer casing 100, the elastic layer 200, the inner casing 300, the bottom plate 400, the limiting device 500, the channel steel 510 and the threaded fastener 520.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality is one or more, the meaning of a plurality is at least two, and greater than, less than, more than, etc. are understood as excluding the present numbers, and above, below, within, etc. are understood as including the present numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 to 3, the controllable horizontal deformation pile foundation according to the embodiment of the first aspect of the present invention is applied to construction of a pile foundation structure, and relates to a pier beam consolidation bridge design and reinforcement technology with a smaller pier stud height and a higher lower structure rigidity, and the pile foundation includes an inner pile casing 300, an outer pile casing 100, an elastic layer 200, a bottom plate 400, and a limiting device 500.
The inner side of the inner pile casing 300 is used for constructing a pile foundation, the outer pile casing 100 is sleeved outside the inner pile casing 300, an interval is formed between the outer pile casing 100 and the inner pile casing 300, the elastic layer 200 is arranged in the interval, the elastic layer 200 is fixedly connected to the inner side of the outer pile casing 100, the elastic layer 200 is separable from the inner pile casing 300, the bottom plate 400 is used for bearing the bottoms of the inner pile casing 300 and the outer pile casing 100, the inner pile casing 300 and the outer pile casing 100 are connected with each other through the limiting device 500, and the limiting device 500 can adjust the size of the interval between the inner pile casing 300 and the outer pile casing 100 based on the flexibility of the elastic layer 200. The setting protects a section of thick bamboo 300 and outside through elastic layer 200 in the inboard, inboard protects a section of thick bamboo 300 inboard and is used for the construction and separable, make the pile foundation can suitably warp and reduced the restraint to the pier stud, thereby the rigidity of whole structure system has been reduced, make pier stud and pile foundation atress reduce, the whole atress of substructure is gone up in further improving, protect a section of thick bamboo and the interval that the outside protected a section of thick bamboo 100 in changing through stop device 500 simultaneously, the horizontal displacement of control pile foundation, satisfy the horizontal deformation requirement of different pile foundations, pier stud and pile foundation structure to various designing requirements all have good adaptability.
In some embodiments of the present invention, the limiting device 500 includes a channel 510 and a threaded fastener 520, two ends of the channel 510 are respectively used for fixedly connecting the inner casing 300 and the outer casing 100, and the threaded fastener 520 is respectively inserted into the channel 510 and the inner casing 300, the channel 510 and the outer casing 100. Preferably, a plurality of channels 510 are provided, the inner casing 300 is provided coaxially with the outer casing 100, the channels 510 are circumferentially arrayed with respect to the axis of the outer casing 100, and the screw fasteners 520 of the channels 510 are independently adjustable.
It is understood that in some construction embodiments, the pile foundation is a cast-in-situ bored pile, and the outer casing 100 and the inner casing 300 are arranged at the top of the pile foundation structure for 5-8 m, which is determined according to the stress requirement of the bridge. The inner side protective cylinder 300 and the outer side protective cylinder 100 are made of steel, the elastic layer 200 is made of rubber layers, specifically, the diameter of the inner side steel protective cylinder is 1.2m, the diameter of the outer side steel protective cylinder is 1.4m, the thickness of the outer side steel protective cylinder is 10mm, the thickness of the rubber layer is 10cm, the bottom plate 400 serves as an annular plate to be used for bottom sealing, reliable connection with the edge of the outer side steel protective cylinder needs to be guaranteed, and the thickness of the bottom plate is 10mm. It should be noted that the spacing device 500 is used to adjust the distance between the inner casing 300 and the outer casing 100, and therefore, it is preferable to arrange the spacing device 500 in the distance, and the spacing device 500 can be removed to prevent eccentricity when the inner casing 300 is to be removed.
Furthermore, the type of the channel steel 510 is determined according to the actual displacement requirement of the pile top of an engineering project, the invention adopts the channel steel 510 with the type of 10, h is 100mm, b is 48mm, d is 5.3mm, and t is 8.5mm, the type of the channel steel 510 is determined according to the pile foundation deformation value, and the threaded fastener 520 adopts a bolt. The inner and outer steel casing and the channel steel 510 are provided with a plurality of round holes for bolts to pass through, and the channel steel 510 is fixed with the outer casing 100 and the inner casing 300 by the bolts. In the stop device 500 work progress, can save the welding with inboard, outside steel casing, adopt bolted connection, improve the efficiency of construction.
According to the invention, the outer side steel pile casing and the inner side steel pile casing are arranged on the outer side of the pile foundation, the rubber body with the thickness of 10cm is placed between the inner steel pile casing and the outer steel pile casing, the limiting device 500 is arranged between the tops of the outer side steel pile casing and the inner side steel pile casing, the horizontal displacement of the pile foundation structure can be effectively regulated and controlled through the limiting device 500, and the distance between the inner side steel pile casing and the outer side steel pile casing is controlled, so that the horizontal deformation requirements of different pile foundations are met. Meanwhile, the limiting device 500 further improves the overall stability of the pile foundation structure in the construction process. In addition, the steel structure is used in the design of the whole pile foundation structure with controllable horizontal rigidity, the modularization degree is high, the construction is convenient, the construction period is effectively shortened, the construction can be recycled after the construction is finished, and the construction waste and the environmental pollution are reduced.
In some embodiments of the present invention, the outer casing 100 and the elastic layer 200 are fixedly connected by an adhesive material. It can be understood that the outer casing 100 is fixedly connected to the elastic layer 200, and still covers the periphery of the pile foundation after the construction is finished, and the elastic layer 200 needs to slide relative to the inner casing 300 after the construction is finished to pull out the inner casing 300, so that the elastic layer 200 needs to be reliably fixed, and epoxy resin or the like can be used as the adhesive material. Further, a drag reduction layer convenient to separate is arranged between the elastic layer 200 and the inner side casing 300. Wherein the drag reduction layer may be formed of a drag reduction agent, which is coated between the elastic layer 200 and the inner casing 300, thereby facilitating the extraction of the inner casing 300 after the construction of the pile foundation is completed.
In some embodiments of the present invention, the bottom plate 400 is fixedly connected to the outer casing 100, and the inner casing 300 is disposed in abutment with the bottom plate 400. It is understood that the bottom plate 400 is only welded to the bottom of the outer casing 100 and is not connected to the inner casing 300, in order to ensure that the elastic layer 200 is not damaged by friction or extrusion when it sinks together with the inner and outer casings 100.
Referring to fig. 1 to 3, a method for constructing a pile foundation according to an embodiment of the second aspect of the present invention may be a method for constructing a pile foundation according to an embodiment of the present invention, or a method for constructing a pile foundation using controlled horizontal deformation according to an embodiment of the first aspect of the present invention, the method for constructing a pile foundation including the steps of:
arranging an outer pile casing 100 at a position which is circumferentially and externally preset for a distance, wherein the outer pile casing 100 is coaxially arranged with the pile foundation;
attaching the elastic layer 200 to the inner side of the outer casing 100, and connecting the elastic layer 200 and the outer casing 100 by using a viscous material;
arranging an inner side casing 300 at the inner side of the elastic layer 200, enabling the inner side casing 300 to be close to the outer side of the pile body of the pile foundation, and coating a drag reducer between the elastic layer 200 and the inner side casing 300, so that the inner side casing 300 can be conveniently pulled out after the construction of the pile foundation is finished;
the bottom plate 400 is arranged at the bottoms of the outer side casing 100 and the inner side casing 300, and the bottom plate 400 is only fixedly connected with the bottom of the outer side casing 100 and is not required to be connected with the inner side casing 300;
arranging a limiting device 500 at the tops of the outer pile casing 100 and the inner pile casing 300, fixing the inner pile casing 300 and the outer pile casing 100 at fixed positions by the limiting device 500 and connecting the inner pile casing 300 and the outer pile casing 100 with each other, and adjusting the limiting device 500 to change the distance between the outer pile casing 100 and the inner pile casing 300, so that the horizontal displacement of the pile foundation is controlled, and the horizontal deformation requirements of different pile foundations are met;
the limiting device 500 and the bottom plate 400 form an integral interlayer by the outer side casing 100, the elastic layer 200 and the inner side casing 300, and the integral interlayer is laminated into the soil;
constructing a pile foundation in the inner pile casing 300, and pouring concrete;
after the construction of the pile foundation is completed, the limiting device 500 is loosened, the inner side pile casing 300 is pulled out, and the construction of the pile foundation structure with controllable horizontal rigidity is completed.
With specific reference to fig. 3, the concrete pile foundation, the outer side pile casing 100 and the elastic layer 200 jointly form a pile foundation, the construction method of the pile foundation can effectively control the horizontal deformation of the pile foundation structure, can improve the stress of the pier stud and the pile foundation, further improve the stress of the upper structure, improve the overall stability of the pile foundation structure, has the advantages of good durability, improved damping performance and the like, does not increase the self weight and size of the original pile foundation structure, is convenient to construct and strong in practicability, can be widely applied to the structural design and construction of a pier-beam consolidated bridge or a flooded bridge, and has remarkable technical and economic benefits.
In some embodiments of the present invention, the limiting device 500 includes a channel steel 510 and a threaded fastener 520, two ends of the channel steel 510 are respectively used for fixedly connecting the inner side casing 300 and the outer side casing 100, and the threaded fastener 520 is respectively inserted into the channel steel 510 and the inner side casing 300, the channel steel 510 and the outer side casing 100, so that the horizontal displacement of the pile foundation structure can be effectively regulated and controlled, and the distance between the inner side steel casing and the outer side steel casing can be controlled, thereby meeting the horizontal deformation requirements of different pile foundations.
In some embodiments of the invention, relevant soil layer information is obtained through geological survey reports, the pile length of the pile foundation and the lengths of the inner casing and the outer casing 100 are determined through surrounding environment data, and the types of the outer casing 100 and the inner casing 300, the size of the channel steel 510 and the positions of bolts are determined according to the information. And then the outer side steel casing and the inner side steel casing are assembled on site, so that the site construction is convenient.
In some embodiments of the invention, the manner of pressing the integral sandwich into the ground comprises: and (3) carrying out measurement and positioning on site, and simultaneously hydraulically sinking the integral interlayer with the bottom plate 400 to a preset depth by using a hydraulic device until the bottom of the outer side pile casing 100 reaches a preset elevation, wherein the bottom plate 400 is only welded with the bottom of the outer side steel pile casing and is not connected with the inner side steel pile casing, so that the rubber body is not damaged by friction or extrusion when being sunk together with the inner and outer side steel pile casings.
The technical features of the embodiments described above can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. A pile foundation with controllable horizontal deformation, comprising:
the inner side of the inner side pile casing is used for constructing a pile foundation;
the outer side protective cylinder is sleeved outside the inner side protective cylinder, and a gap is formed between the outer side protective cylinder and the inner side protective cylinder;
the elastic layer is arranged in the gap, fixedly connected to the inner side of the outer side protective cylinder and separable from the inner side protective cylinder;
the bottom plate is used for bearing the bottoms of the inner side pile casing and the outer side pile casing;
and the limiting device is used for mutually connecting the inner side protective cylinder and the outer side protective cylinder and can adjust the size of the interval between the inner side protective cylinder and the outer side protective cylinder based on the flexibility of the elastic layer.
2. The pile foundation of claim 1, wherein: the outer side protection cylinder is fixedly connected with the elastic layer through a viscous material.
3. The pile foundation of claim 1, wherein: the bottom plate with outside protects a section of thick bamboo fixed connection, the inboard protects a section of thick bamboo with the bottom plate butt sets up.
4. The pile foundation of claim 3, wherein: and a drag reduction layer convenient to separate is arranged between the elastic layer and the inner side casing.
5. The pile foundation of claim 1, wherein: stop device includes channel-section steel and threaded fastener, the both ends of channel-section steel are used for fixed connection respectively the inboard protect a section of thick bamboo with the outside protects a section of thick bamboo, threaded fastener wears to locate respectively the channel-section steel with the inboard protect a section of thick bamboo the channel-section steel with the outside protects a section of thick bamboo.
6. The pile foundation of claim 5, wherein: the channel-section steel sets up a plurality ofly, inboard protect a section of thick bamboo with the coaxial setting of outside protecting a section of thick bamboo, each the channel-section steel uses the axis of outside protecting a section of thick bamboo sets up as benchmark circumference array, each but on the channel-section steel threaded fastener independently adjust.
7. A construction method of a pile foundation capable of controlling horizontal deformation is characterized by comprising the following steps:
arranging an outer pile casing at a position which is circumferentially and externally preset for a preset distance on a pile foundation, wherein the outer pile casing is coaxially arranged with the pile foundation;
attaching an elastic layer to the inner side of the outer side protection barrel, wherein the elastic layer is connected with the outer side protection barrel through a viscous material;
arranging an inner pile casing on the inner side of the elastic layer, enabling the inner pile casing to be close to the outer side of the pile body of the pile foundation, and coating a drag reducer between the elastic layer and the inner pile casing, so that the inner pile casing can be conveniently pulled out after the construction of the pile foundation is finished;
arranging a bottom plate at the bottoms of the outer side pile casing and the inner side pile casing, wherein the bottom plate is only fixedly connected with the bottom of the outer side pile casing and is not required to be connected with the inner side pile casing;
arranging a limiting device at the tops of the outer pile casing and the inner pile casing, wherein the limiting device fixes and connects the inner pile casing and the outer pile casing in positions, and the limiting device is adjusted to change the distance between the outer pile casing and the inner pile casing, control the horizontal displacement of a pile foundation and meet the horizontal deformation requirements of different pile foundations;
the limiting device and the bottom plate form an integral interlayer for the outer side casing, the elastic layer and the inner side casing, and the integral interlayer is laminated into the soil;
constructing a pile foundation in the inner side pile casing, and pouring concrete;
and after the construction of the pile foundation is completed, loosening the limiting device and pulling out the inner side pile casing.
8. The method of constructing a pile foundation according to claim 7, wherein: stop device includes channel-section steel and threaded fastener, the both ends of channel-section steel are used for fixed connection respectively the inboard protect a section of thick bamboo with the outside protects a section of thick bamboo, threaded fastener wears to locate respectively the channel-section steel with the inboard protect a section of thick bamboo the channel-section steel with the outside protects a section of thick bamboo.
9. The method of constructing a pile foundation according to claim 8, wherein: obtaining related soil layer information through a geological survey report, determining the pile length of a pile foundation and the lengths of an inner pile casing and an outer pile casing through surrounding environment data, and determining the types of the outer pile casing and the inner pile casing, the size of channel steel and the position of a bolt according to the information.
10. The method of constructing a pile foundation according to claim 7, wherein: the manner of pressing the integral interlayer into the soil comprises: and (4) carrying out measurement and positioning on site, and simultaneously hydraulically sinking the integral interlayer with the bottom plate to a preset depth by using a hydraulic device until the bottom of the outer pile casing reaches a preset elevation.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016138398A (en) * | 2015-01-27 | 2016-08-04 | 三谷セキサン株式会社 | Footing integrated foundation pile structure and footing integrated foundation pile construction method |
| CN109811764A (en) * | 2019-03-28 | 2019-05-28 | 广东远大桥梁钢结构租赁有限公司 | Bored pile construction recoverable steel pile casting and construction method |
| CN111021356A (en) * | 2019-12-26 | 2020-04-17 | 上海隧道工程有限公司 | Method and device for recovering steel casing of mudflat pile foundation |
| CN111042125A (en) * | 2019-12-12 | 2020-04-21 | 三峡大学 | Double-layer pile casing device for limiting expansion of head of cast-in-place pile and construction method |
| CN111962505A (en) * | 2020-08-14 | 2020-11-20 | 北京建工集团有限责任公司 | Double-pile-casing positioning structure of collimation pile, double-pile-casing device, collimation pile and construction method |
| CN213709507U (en) * | 2020-10-27 | 2021-07-16 | 中建三局基础设施建设投资有限公司 | Pile foundation long casing subsection quick-release device |
-
2022
- 2022-07-27 CN CN202210892286.3A patent/CN115142458A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016138398A (en) * | 2015-01-27 | 2016-08-04 | 三谷セキサン株式会社 | Footing integrated foundation pile structure and footing integrated foundation pile construction method |
| CN109811764A (en) * | 2019-03-28 | 2019-05-28 | 广东远大桥梁钢结构租赁有限公司 | Bored pile construction recoverable steel pile casting and construction method |
| CN111042125A (en) * | 2019-12-12 | 2020-04-21 | 三峡大学 | Double-layer pile casing device for limiting expansion of head of cast-in-place pile and construction method |
| CN111021356A (en) * | 2019-12-26 | 2020-04-17 | 上海隧道工程有限公司 | Method and device for recovering steel casing of mudflat pile foundation |
| CN111962505A (en) * | 2020-08-14 | 2020-11-20 | 北京建工集团有限责任公司 | Double-pile-casing positioning structure of collimation pile, double-pile-casing device, collimation pile and construction method |
| CN213709507U (en) * | 2020-10-27 | 2021-07-16 | 中建三局基础设施建设投资有限公司 | Pile foundation long casing subsection quick-release device |
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