WO2021187873A1 - Installateur de pieu de type implant dans un système de fondation de construction et procédé d'installation de pieu de type implant l'utilisant - Google Patents

Installateur de pieu de type implant dans un système de fondation de construction et procédé d'installation de pieu de type implant l'utilisant Download PDF

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Publication number
WO2021187873A1
WO2021187873A1 PCT/KR2021/003251 KR2021003251W WO2021187873A1 WO 2021187873 A1 WO2021187873 A1 WO 2021187873A1 KR 2021003251 W KR2021003251 W KR 2021003251W WO 2021187873 A1 WO2021187873 A1 WO 2021187873A1
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WIPO (PCT)
Prior art keywords
pile
reaction force
implant
press
pipe
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PCT/KR2021/003251
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English (en)
Korean (ko)
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조정래
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조정래
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Publication of WO2021187873A1 publication Critical patent/WO2021187873A1/fr

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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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/28—Stressing the soil or the foundation structure while forming foundations
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/48—Foundations inserted underneath existing buildings or constructions
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00—Production methods
    • E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D37/00—Repair of damaged foundations or foundation structures

Definitions

  • the present invention relates to an implant-type pile press-in device in a building foundation system and an implant-type filing method using the same, and to form a foundation system using a reaction force such as a building's own weight, and more particularly, to construct a foundation system of a building
  • An implant-type pile press-in device that can be embedded and transplanted into the foundation slab of a new structure in advance to form a pile foundation later or to restore deformation caused by floating settlement of a building, and to press-in piles used for extension or remodeling; and It relates to an implant-type filing method using the same.
  • the ground in order to additionally extend the basement, the ground must be reinforced to support the structure's own weight, but since there was no reliable ground reinforcement method, the conventional ground reinforcement method had to be used prior to the construction of the structure.
  • FIG. 1 is a conceptual diagram illustrating a method of raising a structure and a foundation reinforcement using a conventional press-in body.
  • a reaction force hole 120 is drilled in the bottom plate 110 of the structure 100 in order to install the reaction force support 200, and then a reaction force ball such as a reinforcing bar or a steel bar is formed in the reaction force hole 120 ( 210) by penetrating the lower end of the structure to fix it on the bottom of the structure, and by installing the upper support 220 in the form of a circular plate located inside the structure 100 at the upper end of the reaction force sphere 210, artificially the reaction force support (200; 210, 220) is installed in the structure, and the press-in body 300 in the form of a pile such as a steel pipe is set in the press-in hole 130 drilled to a predetermined depth like the reaction force hole 120 in the lower part of the upper support 220, and the press-in body ( 300) and the upper support by operating the press-in means 400 including a hydraulic cylinder to press-in the press-in body 300 into the lower part of the structure 100, and then hydraulic pressure between the press-fitted press
  • an object of the present invention is to form a pile foundation or a building later by burying and transplanting in the foundation slab of a new structure in advance in the step of constructing a building foundation system when a structure is newly constructed.
  • An implant-type pile press-in device is provided in a building foundation system consisting of a pile installation tool that can press-in a pile and a reaction force support pipe that supports the reaction force of the hydraulic jack when restoring the deformation caused by the immobility settlement of will be.
  • Another object of the present invention is to provide an implant-type pile press-in device using a reaction force support pipe that has a simple structure and can be easily and quickly assembled in a pile installation port.
  • Another object of the present invention is to press-in and construct piles for pile foundation formation, deformation restoration due to immobility settlement, extension or remodeling using implanted pile installation tools buried and implanted in advance at the stage of constructing the building foundation system. It is to provide a filing method using an implant-type pile press-in device in a building foundation system that can be built.
  • the implant-type pile press-in device in the building foundation system for achieving the above object is an apparatus for press-fitting the pile in the building foundation system, and is made in a pipe shape so that the pile can be inserted, and is A pile installation hole in which a male screw thread is formed, an upper flange and a lower flange are formed in the upper and lower portions, respectively, so that they can be buried and transplanted into the foundation slab of the new structure; a reaction force support pipe made of a pipe shape to accommodate a pile, a female threaded part is formed at the lower end, and is fastened with the male threaded part, and an opening is formed on both sides to allow the file to be drawn in; and a hydraulic jack coupled to the upper end of the reaction force support pipe and press-fitting the file.
  • the reaction force support pipe includes a main support pipe having a pipe shape and having openings on both sides, a reducing pipe having an inner diameter narrowed downwardly at a lower portion of the main supporting pipe, and a pipe shape at the lower part of the reducing pipe It may be made of a connecting pipe in which a female threaded part fastened to the male threaded part is formed on the inner circumferential surface.
  • a connecting reinforcing bar may be formed protruding from the outer circumferential surface of the pile installation port so as to be connected to the reinforcing bar for the base slab that is reinforced on the base slab.
  • the hydraulic jack includes a reaction force plate fixed to seal the upper end of the reaction force support tube while being screwed to the upper end of the reaction force support tube, and a hydraulic cylinder coupled to the lower surface of the reaction force plate and installed downward in the reaction force support tube. can be included.
  • an extension sleeve tube may be further provided between the reaction force plate and the reaction force support tube to extend the length of the reaction force support tube.
  • the implant-type filing method using the implant-type pile press-fitting device in the building foundation system is made in a pipe shape so that a pile can be inserted, a male screw thread is formed at the upper end, and the upper and lower parts are A disposing step of arranging the pile installation holes each having an upper flange and a lower flange formed in the base slab forming space; Reinforcing reinforcement for the foundation slab in the foundation slab forming space, and a reinforcement step of bonding to the outer peripheral surface of the pile installation; A transplantation step of pouring and curing concrete in the reinforced foundation slab forming space, and burying and transplanting the pile installation port into the foundation slab; A reaction force support pipe formed in a pipe shape to accommodate a pile, a female threaded part is formed at the bottom, and is fastened with the male threaded part, and an opening is formed on both sides to allow the file to be drawn in, and the male threaded part of the pile installation part is fastened and a reaction force frame assembly step of installing
  • the connecting reinforcing bars protruding from the outer circumferential surface of the pile installation port may be mutually joined with the reinforcing bars for the foundation slab reinforced in the foundation slab by welding or a coupler.
  • the upper portion of the pile installation hole may further include a capping step of covering the pouring cover to prevent the exposure of the pile installation hole and the inflow of concrete to be poured.
  • the implant-type pile installation tool is buried and transplanted in the foundation slab in advance when constructing a new structure, when forming a pile foundation or restoring deformation due to floating subsidence of a building and extension or There is no need to drill the foundation slab separately during remodeling. Therefore, since the reinforcing bars previously reinforced in the foundation slab are not cut, it is possible to prevent a decrease in strength without damaging the existing structure at all.
  • the buried and transplanted pile installation tool guides the verticality and straightness of the press-fitted pile, the verticality and straightness of the pile are guaranteed.
  • the reaction force support tube acts as a reaction force frame, so it is a very simple and fast pile press-in process compared to assembling the reaction force frame by assembling the reaction force frame by assembling the conventional rod-shaped reaction force ball and support body with a nut. can be performed.
  • FIG. 1 is a view showing a structure raising and foundation reinforcement method using a conventional press-in body
  • Figure 2 is a perspective view showing the exterior of the implant-type pile press-in device in the building foundation system according to an embodiment of the present invention
  • FIG. 3 is a cross-sectional view of the present invention shown in FIG.
  • FIG. 4 is an exploded cross-sectional view of the present invention shown in FIG.
  • FIG. 5 is a perspective view showing another embodiment of the pile installation tool shown in FIG.
  • 6a to 6f are construction process diagrams showing a filing method using an implant-type pile press-in device in a building foundation system according to another embodiment of the present invention.
  • the present invention is to bury and transplant a pile installation hole in advance before pouring concrete on the foundation slab of a new structure, and then form a pile foundation or restore deformation due to floating settlement of a building and extension It relates to an implant-type pile press-in device that can press-in a pile by assembling a reaction force support pipe without the need for drilling in the foundation slab during remodeling and a filing method using the same.
  • FIGS. 2 to 5 are perspective views showing the exterior of the implant-type pile press-in device in the building foundation system according to an embodiment of the present invention
  • Figure 3 is a cross-sectional view of the present invention shown in Figure 2
  • Figure 4 is shown in Figure 2
  • FIG. 5 is a perspective view showing another embodiment of the pile installation tool shown in FIG.
  • the implant-type pile press-in device may be configured to include a pile installation port 100 , a reaction force support pipe 300 , and a hydraulic jack 400 .
  • the pile installation port 100 is a steel pipe made of a pipe or cylinder shape.
  • the cross-sectional shape of the pile installation port 100 may be circular or polygonal.
  • the inner diameter should be larger than the outer diameter of the pile to be press-fitted during expansion or modeling.
  • the length of the pile installation port 100 should be the same as or shorter than the thickness of the foundation slab (S) to be expanded and contracted. This is because, buried in the foundation slab (S), it must be transplanted.
  • a male screw thread part 110 is formed on the upper outer peripheral surface of the pile installation port 100 .
  • the male threaded part 110 is formed to be screw-coupled to a reaction force support pipe 300 to be described later.
  • an upper flange 140 and a lower flange 150 are coupled to the upper and lower portions of the pile installation port 100 , respectively.
  • the upper flange 140 and the lower flange 150 can prevent the pile installation port 100 from swinging while being mounted on the reinforcing bar during reinforcement of the foundation slab.
  • an upper portion of the pile installation hole 100 may be further provided with a pouring cover 200 having a detachable structure.
  • the pile installation port 100 This blocks the inflow of concrete or foreign substances into the inside of the pile installation port 100 when pouring concrete for forming the foundation slab.
  • the pile installation port 100 is to prevent exposure to the outside in a buried and transplanted state.
  • the material of the pouring cover 200 may be a synthetic resin, but may be made of a steel material so as to be used instead of the reaction force plate 410 as will be described later.
  • the reaction force support pipe 300 is combined with the pile installation port 100 to allow the hydraulic jack 400 to be mounted, and is largely composed of a main support pipe 310 , a reduced pipe 320 and a connection pipe 330 . is composed
  • the main support pipe 310 is a steel pipe formed in the shape of a pipe or a cylinder.
  • the cross section of the main support pipe 310 may be circular or polygonal, but a circular shape is preferable.
  • the inner diameter of the main support pipe 310 should be greater than the outer diameter of the pile (P) to be press-fitted. This is because the pile P and the hydraulic cylinder 420 must be accommodated inside the main support pipe 310 .
  • an opening 311 in a shape cut along the longitudinal direction is formed on one side of the main support pipe 310, and it is preferable that the openings 311 are formed on both sides.
  • the opening 311 may be formed to be elongated in the longitudinal direction to allow the file to be introduced into the inside of the main support pipe 310 from the outside, and the width may be appropriately formed.
  • the width of the opening 311 is too large, the main support pipe 310 cannot support the reaction force, so the length and width of the opening 311 must be designed within the limit that can sufficiently support the reaction force.
  • connection pipe 330 having a female threaded portion 331 formed on an inner circumferential surface is provided at a lower portion of the main support pipe 310 .
  • connection pipe 330 is for fastening with the male screw thread part 110 of the pile installation port 100 .
  • connection pipe 330 has a length corresponding to the outer diameter of the pile installation port 100, but the main support pipe 310 has an outer diameter sufficient to support the reaction force after the opening 311 is formed. Therefore, it should be longer than the outer diameter of the connection pipe (330).
  • the reduction tube 320 is provided between the main support tube 310 and the connecting tube 330 to connect them.
  • the reduction tube 320 is an inverted conical tube whose inner diameter becomes narrower toward the lower side.
  • the reaction force support pipe 300 may be installed on the upper side of the pile installation port 100 .
  • the hydraulic jack 400 is installed on the upper end of the reaction force support pipe 300 and press-fits the pile, and may be composed of a reaction force plate 410 and a hydraulic cylinder 420 .
  • the reaction plate is coupled to and fixed to the upper end of the main support tube 310 and may be a circular steel plate, and supports the hydraulic cylinder 420 while sealing the upper end of the main support tube 310 .
  • reaction plate 410 and the main support pipe 310 are preferably screw-coupled. That is, a female threaded part is also formed on the upper end of the main support pipe 310 , and a male threaded part 411 is formed on the lower end of the reaction force plate 410 to be coupled to each other. However, of course, they may be combined by welding or the like.
  • the hydraulic cylinder 420 is coupled to the lower surface of the reaction force plate 410 and installed and accommodated in the downward direction in the main support pipe. That is, the body of the hydraulic cylinder 420 is supported by being coupled to the reaction plate 410, and the rod is disposed downward.
  • reaction plate 410 may be dedicated to the above-described pouring cover 200 .
  • the hydraulic jack 400 is connected to the main support tube 300 by removing the pouring cover 200 and attaching the hydraulic cylinder 420 to the upper end of the main support tube 410 by bonding or fastening. ) can be combined at the top of the
  • an extension sleeve tube 340 may be further included to extend the length of the reaction force support tube 300 between the reaction force plate 410 and the main support tube 310 . This can be assembled according to the field situation when the length of the press-fitted pile (P) is long.
  • the extended sleeve tube 340 has the same outer diameter as the main support tube 310 and may be fastened to the upper end of the main support tube 310 , and the reaction force plate 410 is disposed on the upper end of the extension sleeve tube 340 . It is possible to extend the length of the main support pipe 310 by fastening it.
  • Another embodiment of the present invention may have a structure in which one or more connecting reinforcing bars 130 are formed on the outer circumferential surface of the pile installation hole 100 as shown in FIG. 5 .
  • the connecting reinforcing bar 130 is for connecting the base slab reinforcing bar (B) and the pile installation tool (100) to be reinforced to form the base slab (S).
  • the connecting reinforcing bar 130 should be formed so that the arrangement corresponds to the reinforcing bar (B) for the foundation slab to be reinforced.
  • the reinforcing bar (B) for the foundation slab is reinforced with an upper reinforcing bar located at the upper portion and a lower reinforcing bar located at the lower portion. It can be pre-fabricated at the factory to be formed protruding into the
  • the connecting reinforcing bar 130 and the reinforcing bar (B) for the foundation slab may be joined by binding or welding by using a wire at the mutual intersection point.
  • a separate coupler (not shown) may be used to couple to each other.
  • connecting reinforcing bar 130 can be joined by direct welding.
  • Fig. 6a shows the reinforcement stage
  • Fig. 6b shows the transplantation stage
  • Fig. 6c shows the reaction frame assembly stage
  • Fig. 6d shows the press-in stage
  • Fig. 6e is a construction process diagram showing the fixing stage.
  • the arrangement step is a step of installing the above-described pile installation hole 100 in the base slab forming space of the new structure.
  • it may be disposed at any position of the foundation slab (S), but may be disposed radially around the reinforcing bars for columns erected generally vertically.
  • the reinforcement step is a step of reinforcing the reinforcing bar (B) for the foundation slab in the forming space of the foundation slab.
  • the reinforcing bars (B) for the foundation slab may be arranged double in the upper and lower portions, and are arranged in a lattice form. In general, the spacing of the reinforcing bars (B) for each foundation slab is about 20 ⁇ 30cm.
  • reinforcement may be made so that the upper flange 140 and the lower flange 150 are mounted on the reinforcing bar.
  • the outer diameter of the pile installation port 100 is smaller than the interval between the reinforcing bars (B) for the foundation slab, there is no need to cut the reinforcing bars (B) for the foundation slab. However, if the outer diameter of the pile installation hole 100 is greater than the interval, part of the reinforcement for the foundation slab (B) to be reinforced is cut and the cut part is welded to the outer circumferential surface of the pile installation hole 100 to be joined.
  • connecting rebar 70 and the cut portion may be connected with a wire or connected using welding or a coupler (not shown).
  • a capping step of covering the pouring cover 200 on the upper surface of the pile installation hole 100 may be further performed after the reinforcement step.
  • the pouring cover 200 In order to cover the pouring cover 200, it can be capped by a method of fastening with the male thread part 110 of the pile installation port 100 or by simply closing a stopper. Due to this, it is possible to block the concrete poured in the next transplant step from flowing into the pile installation port 100, and when the foundation slab (S) is cured, it prevents the pile installation port 100 from being exposed to the outside. .
  • the next step is the transplantation step shown in FIG. 6B.
  • the transplanting step concrete is poured into the foundation slab forming space in which the reinforcing bars (B) for the foundation slab are reinforced, and the pile installation port 100 is placed in the foundation slab (S) while forming the foundation slab (S) by curing. This is the step to be buried.
  • the pouring concrete is poured so that the upper surface of the pouring cover 200 and the pouring surface coincide.
  • the pile installation port 100 transplanted into the foundation slab (S) is buried until the expansion or remodeling is performed and when the pile foundation is formed later or when the deformation due to the immovable subsidence of the building is restored, remain transplanted.
  • the reaction force frame assembly step is a step of connecting the reaction force support pipe 300 described above with the pile installation port 100 and installing the hydraulic jack 400 on the upper end of the reaction force support tube 300 .
  • the pouring cover 200 is separated from the pile installation port 100 and disassembled.
  • connection pipe 330 of the reaction force support pipe 300 is fastened with the upper end of the pile installation port 100 to vertically install the reaction force support pipe 300 .
  • the hydraulic jack 400 is coupled to the upper end of the main support pipe 310 . That is, the reaction plate 410 is installed such that the main support pipe and the rod of the hydraulic cylinder 420 are downward.
  • the following is a press-in step of press-fitting the file into the hydraulic jack 400 as shown in FIG. 6d.
  • the pile P is inserted into the pile installation port 100 .
  • the pile (P) is press-fitted to the lower side and goes down through the ground located below the foundation slab (S).
  • the pile installation port 100 guides the straightness and the verticality of the pile (P), the straightness and the verticality are excellent compared to the existing ones.
  • the file P can use all of various shapes. That is, if accommodated in the pile installation port 100, such as a steel pipe shape, an I-beam or H-beam shape, a steel bar shape, a polygonal pipe shape, it will be possible.
  • the pile may be extended in such a way that a female thread is formed in one of the piles, and a male thread is formed in the other pile to be mutually fastened.
  • the reaction plate 410 can be prepared separately, but the pouring cover 200 can be diverted in the present invention. That is, the material or standard of the pouring cover 200 is designed to be used as a reaction force plate, and while it is used as the pouring cover 200, it can be disassembled during extension or remodeling and used as the reaction force plate 410 .
  • reaction force support tube 300 itself functions like a plurality of conventional reaction force support rods, there is no need to assemble the reaction force frame by cumbersomely fastening the reaction force support rod with a nut.
  • the fixing step is a step of integrating the upper end of the last press-fitted file (P) and the upper end of the file installation port 100 when the press-fitting of the file is completed as shown in FIG. 6e.
  • the pile (P) press-fitted into the lower ground can support the entire foundation slab (S) even after excavation of the ground.
  • the pile installation port 100 and the pile (P) may be coupled to each other by welding.
  • the press-fitted pile (P) can more firmly support the load of the foundation slab (S).

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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)
  • Piles And Underground Anchors (AREA)
  • Foundations (AREA)

Abstract

L'invention concerne un installateur de pieu de type implant dans un système de fondation de construction, et un procédé d'installation de pieu de type implant l'utilisant. En particulier, un installateur de pieu de type implant dans un système de fondation de construction comprenant : un élément de montage de pieu, qui est formé sous une forme de tuyau de telle sorte qu'un pieu peut être inséré à l'intérieur de celui-ci, comporte une partie filetée mâle formée sur son extrémité supérieure, et comporte une bride supérieure et une bride inférieure respectivement formées au niveau des parties supérieure et inférieure de celui-ci de façon à être incorporées et implantées dans la dalle de fondation d'une structure nouvellement construite ; un tuyau de support de force de réaction, qui est formé sous une forme de tuyau de telle sorte qu'un pieu peut être reçu à l'intérieur de celui-ci, comporte une partie de filetage femelle formée au niveau de son extrémité inférieure de façon à être fixée à la partie de filetage mâle, et comporte des ouvertures formées sur les deux côtés de celle-ci de telle sorte que le pieu peut être inséré à l'intérieur de celui-ci ; et un vérin hydraulique couplé à l'extrémité supérieure du tuyau de support de force de réaction de façon à installer le pieu.
PCT/KR2021/003251 2020-03-16 2021-03-16 Installateur de pieu de type implant dans un système de fondation de construction et procédé d'installation de pieu de type implant l'utilisant WO2021187873A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020200032238A KR102190480B1 (ko) 2020-03-16 2020-03-16 건축기초시스템에 있어 임플란트식 파일압입장치 및 이를 이용한 임플란트식 파일링공법
KR10-2020-0032238 2020-03-16

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KR102190480B1 (ko) * 2020-03-16 2020-12-11 조정래 건축기초시스템에 있어 임플란트식 파일압입장치 및 이를 이용한 임플란트식 파일링공법
CN114561949B (zh) * 2022-03-18 2024-05-24 四川华远建设工程有限公司 一种改进的锚杆静压桩的封桩装置

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KR101212240B1 (ko) 2012-05-31 2012-12-13 현대산업개발 주식회사 리모델링 구조물의 지하 하향 증축 구조 및 공법
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JPH10244476A (ja) * 1997-03-04 1998-09-14 Echo Denki Kk アンカーボルトの固着作動装置
KR20090080598A (ko) * 2008-01-22 2009-07-27 주식회사 스마텍엔지니어링 길이 조절 부재를 구비하여 천공 깊이에 맞추어 설치길이를 자유롭게 조절할 수 있는 콘크리트 말뚝 및 그시공방법
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JP2013155481A (ja) * 2012-01-26 2013-08-15 Gaeart Tk:Kk 建物基礎傾斜復旧工法および建物基礎構造
KR101654606B1 (ko) * 2016-04-21 2016-09-07 김인호 측방보강체를 이용한 구조물 보강공법
KR101819089B1 (ko) * 2017-04-03 2018-01-16 신영기술개발(주) 효율 증대용 강관 다단 그라우팅 장치 및 시공방법
KR102190480B1 (ko) * 2020-03-16 2020-12-11 조정래 건축기초시스템에 있어 임플란트식 파일압입장치 및 이를 이용한 임플란트식 파일링공법

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