WO2022085973A1 - Lower foundation construction method using mold-integrated pc panel, lower foundation structure using strut-and-tie stiffeners, and construction method therefor - Google Patents

Lower foundation construction method using mold-integrated pc panel, lower foundation structure using strut-and-tie stiffeners, and construction method therefor Download PDF

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Publication number
WO2022085973A1
WO2022085973A1 PCT/KR2021/013290 KR2021013290W WO2022085973A1 WO 2022085973 A1 WO2022085973 A1 WO 2022085973A1 KR 2021013290 W KR2021013290 W KR 2021013290W WO 2022085973 A1 WO2022085973 A1 WO 2022085973A1
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WO
WIPO (PCT)
Prior art keywords
panel
block
foundation
reference block
lower foundation
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PCT/KR2021/013290
Other languages
French (fr)
Korean (ko)
Inventor
신정열
이안호
여인호
이성혁
엄기영
Original Assignee
한국철도기술연구원
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Publication date
Priority claimed from KR1020200137674A external-priority patent/KR102482691B1/en
Priority claimed from KR1020200137672A external-priority patent/KR102482690B1/en
Application filed by 한국철도기술연구원 filed Critical 한국철도기술연구원
Publication of WO2022085973A1 publication Critical patent/WO2022085973A1/en

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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/02Piers; Abutments ; Protecting same against drifting ice
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D15/00Handling building or like materials for hydraulic engineering or foundations
    • E02D15/02Handling of bulk concrete specially for foundation or hydraulic engineering purposes
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00Foundations as substructures
    • E02D27/10Deep foundations
    • E02D27/12Pile foundations
    • E02D27/14Pile framings, i.e. piles assembled to form the substructure
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00Foundations as substructures
    • E02D27/28Stressing the soil or the foundation structure while forming foundations

Definitions

  • the present invention relates to a lower foundation construction method using a formwork-integrated PC panel, and a lower foundation structure using a strut tie reinforcement and a construction method thereof.
  • a vertical H-beam (thumb pile, hereinafter referred to as a thumb pile) is press-fitted or typed before the underground excavation work, and the wooden earth plate is placed in the thumb pile in the horizontal direction while excavating.
  • the underground is excavated by installing them in a stacked manner.
  • the excavation site is to be excavated at a position that is separated by about 500mm or more from the outline of the structure for a space for the formwork of the underground outer wall.
  • KR Patent Publication No. 2003-10407 shows a plan sectional view of KR Patent Publication No. 2003-10407 (published in 20030205).
  • KR Patent Publication No. 2003-10407 published on February 5, 2003
  • a thumb pile made of H-beams was built underground as shown in the drawing. After installing it vertically, place the fiber-reinforced cement containing reinforcing fibers so that the connecting hardware can be embedded in the concrete of the outer basement wall, and then apply the fiber-reinforced cement to the thumb piles and between the thumb piles.
  • a retaining structure construction method characterized in that it is poured so as to be filled, and the retaining structure can be synthesized with the underground outer wall of the building to replace the formwork.
  • a retaining wall to be filled with fiber-reinforced small cement must be formed around and between the thumb piles, and the H-beam must be permanently buried underground together with the retaining wall, so there is a problem that the construction cost is excessive.
  • the present invention it is possible to reduce the area occupied by the temporary facility by applying the cast-in-place foundation and the integrated PC panel, and it is possible to reduce the amount of excavation by reducing the depth of the foundation, thereby reducing the construction period and the depth of the temporary facility.
  • the purpose of this is to provide a lower foundation construction method using a formwork-integrated PC panel that can reduce construction costs and shorten the formwork dismantling period by reusing H-pillars.
  • struts that can reduce the depth of the foundation-to provide a lower pier foundation structure having a tie reinforcement and a construction method thereof
  • the object of improving the load carrying capacity can be achieved even though the thickness of the lower foundation is reduced through the strut-tie reinforcement.
  • a first object of the present invention after inserting a plurality of piles after drilling the ground, mounting the PC panel on the pile to construct a PC wall; After excavating the ground of the foundation, press-fitting the PC panel to manufacture a lower foundation structure wall; Installing a temporary temporary panel for retaining on the top of the PC panel; After reinforcing reinforcement inside the wall of the foundation structure, pouring concrete to construct the lower foundation structure; and removing the temporary temporary panel and the pile; it can be achieved as a lower foundation construction method using a formwork-integrated PC panel, characterized in that it includes.
  • file may be characterized as an H file.
  • the PC panel includes a PC reference block, a PC corner block, and a PC panel block, wherein the PC panel block is assembled between the PC reference block and the PC corner block, and between the PC reference block and the PC reference block.
  • the PC reference block may include a pile insertion end into which both ends of the flange of the H file are inserted along the longitudinal direction on one side of the side part, and a panel insertion end provided on each of both side end surfaces.
  • the PC corner block may have a L-shaped cross section, and may include a pile insertion end formed on the outer surface, and a panel insertion end formed on each of the inner surface.
  • the PC panel block is in the form of a plate, protruding ends are formed on both end surfaces in the longitudinal direction, the H file is coupled to the pile insertion end of the PC reference block, and the H file is coupled to the pile insertion end of the PC corner block. and the PC panel block is fastened between the panel insertion end of the PC reference block and the panel insertion end of another PC reference block, and the PC panel between the panel insertion end of the PC reference block and the panel insertion end of the PC corner block It may be characterized in that the block is fastened.
  • Step 3 may be characterized as comprising.
  • it may be characterized by further comprising a fourth step of excavating the lower ground and repeating the steps of sequentially press-fitting the PC corner block, the PC panel block, and the PC reference block according to the basic grain size.
  • the strut tie reinforcement is installed inside the wall of the foundation structure, the reinforcing bar is assembled, and then the concrete is poured to construct the lower foundation structure.
  • the second object of the present invention can be achieved as a lower foundation structure using an integrated PC panel, characterized in that it is constructed by the construction method according to the first object mentioned above.
  • the PC wall is used as the formwork when constructing the lower foundation structure using the cast-in-place foundation, the PC panel and the PC wall to which the H-file is applied. At the same time, it has the effect that it can be constructed as the main wall of the lower foundation structure.
  • the area occupied by the temporary facility can be reduced by applying the cast-in-place foundation and the integrated PC panel, and the amount of excavation can be reduced by reducing the depth of the foundation. It has the advantage of being able to shorten the reduction and the depth of temporary construction, and to reduce the construction cost and the period of dismantling the formwork by reusing the H-pillar.
  • Struts according to an embodiment of the present invention According to the lower pier foundation structure having a tie reinforcement and its construction method, together with the hybrid PC wall, it has the effect of reducing the depth of the foundation.
  • the lower pier foundation structure having a strut-tie reinforcement and a construction method therefor reduce the thickness of the foundation structure and the amount of excavation by reducing the depth of the foundation in the downtown foundation construction, thereby reducing air and temporary depth has the advantage of being shortened.
  • the strut-tie lower pier foundation structure having the reinforcement and the construction method thereof have the effect of improving the load-bearing capacity even though the thickness of the lower foundation is reduced through the strut-tie reinforcement.
  • FIG. 2 is a flowchart of a lower foundation construction method using a formwork-integrated PC panel according to an embodiment of the present invention
  • FIG. 3 is a front view of a PC wall combined with an H file and a PC panel according to an embodiment of the present invention
  • FIG. 4 is a perspective view of a PC reference block according to an embodiment of the present invention.
  • FIG. 5 is a plan view of a PC reference block into which an H file is inserted according to an embodiment of the present invention
  • FIG. 6 is a perspective view of a PC corner block according to an embodiment of the present invention.
  • FIG. 7 is a plan view of a PC corner block into which an H file is inserted according to an embodiment of the present invention.
  • FIG. 8 is a perspective view of a PC panel block according to an embodiment of the present invention.
  • FIG. 9 is a perspective view of a state in which a PC panel block is assembled between a PC corner block and a PC reference block according to an embodiment of the present invention.
  • FIG. 10 is a perspective view of an H file installed after ground drilling according to an embodiment of the present invention.
  • 11 and 12 are a side cross-sectional view and a perspective view of a state in which the PC reference block and the PC corner block are mounted on the H file after the H file is installed according to an embodiment of the present invention
  • FIG. 13 is a side cross-sectional view of a state of primary excavation of the foundation ground according to an embodiment of the present invention.
  • FIG. 14 is a side cross-sectional view of a state in which a PC corner block is first press-fitted according to an embodiment of the present invention
  • 15 is a side cross-sectional view of a state in which the PC reference block is first press-fitted and the PC panel block is press-fitted between the PC corner block and the PC reference block according to an embodiment of the present invention
  • 16 is a side cross-sectional view of a state in which the PC panel is sequentially first press-fitted according to an embodiment of the present invention
  • 17 is a side cross-sectional view of a state in which the primary press-fitted PC panel lower base part is secondary excavated according to an embodiment of the present invention
  • FIG. 19 is a side cross-sectional view of a state in which a PC corner block, a PC reference block, and a PC panel block are secondarily press-fitted, and a temporary temporary panel for retaining is installed on the top according to an embodiment of the present invention
  • 20 and 21 are a side cross-sectional view and a perspective view of a state in which a temporary temporary panel for retaining is installed on the upper end of the PC panel press-fitted sequentially according to an embodiment of the present invention
  • FIG. 22 is a perspective view of a lower foundation wall constructed according to an embodiment of the present invention.
  • FIG. 23 is a side cross-sectional view of a state in which reinforcing materials and reinforcing bars are installed inside the lower foundation wall according to an embodiment of the present invention, and the foundation concrete is poured;
  • FIG. 24 is a perspective view of a state in which the base unit of the strut tie reinforcement is installed inside the lower foundation wall according to an embodiment of the present invention
  • 25 is a perspective view of a base unit of a strut tie reinforcement inside a lower foundation wall according to an embodiment of the present invention
  • 26 is a front view of the foundation unit of the strut tie reinforcement inside the lower foundation wall according to an embodiment of the present invention.
  • FIG. 27 is a plan view of a strut tie member of a base unit according to an embodiment of the present invention.
  • 29 is a sectional view taken along line B-B of FIG. 27;
  • FIG. 30 is a perspective view of a steel box unit according to an embodiment of the present invention.
  • FIG. 31 is an exploded perspective view of a base unit and a steel box unit according to an embodiment of the present invention.
  • FIG. 32 is a perspective view of a strut tie reinforcement installed in a foundation structure wall according to an embodiment of the present invention.
  • FIG. 33 is a plan view of a strut tie reinforcement according to an embodiment of the present invention.
  • Fig. 35 is a cross-sectional view taken along line B-B of Fig. 33;
  • 36 is a side cross-sectional view of a state in which the temporary panel and the H file are removed according to an embodiment of the present invention
  • 37 and 38 show a side cross-sectional view and a perspective view of a lower base structure constructed according to an embodiment of the present invention.
  • Figure 2 shows a flowchart of a lower foundation construction method using a formwork-integrated PC panel according to an embodiment of the present invention.
  • the PC wall 1 integrated with the formwork and the base structure wall is used at the same time.
  • the PC wall 1 shows a front view of the PC wall (1) to which the H-file (2) and the PC panel are combined according to an embodiment of the present invention.
  • the PC wall 1 according to the present invention is configured to include an H file 2 and a PC panel 3 .
  • the PC panel 3 may be configured to include a PC reference block 10 , a PC corner block 20 and a PC panel block 30 .
  • a PC panel may be configured to include a fiber-reinforced cement composite, a fiber-reinforced mesh, and the like.
  • the PC panel block 30 is assembled between the PC reference block 10 and the PC corner block 20, and between the PC reference block 10 and the PC reference block 10, to produce a base structure wall.
  • FIG. 4 is a perspective view of the PC reference block 10 according to an embodiment of the present invention.
  • FIG. 5 shows a plan view of the PC reference block 10 into which the H-file 2 is inserted according to an embodiment of the present invention.
  • the PC reference block 10 is provided on one side of the side part along the longitudinal direction with the pile insertion end 11 formed so that both ends of the flange of the H file 2 are inserted, and at each of both side end surfaces It can be seen that the panel is configured to include the insertion end (12).
  • FIG. 6 is a perspective view of the PC corner block 20 according to an embodiment of the present invention.
  • Fig. 7 shows a plan view of the PC corner block 20 into which the H-file 2 is inserted according to an embodiment of the present invention.
  • the PC corner block 20 as a whole has a L-shaped cross-section, a pile insertion end 21 formed on the outer surface, and a panel insertion end 22 formed on each inner surface. It can be seen that it is composed of
  • FIG. 8 is a perspective view of the PC panel block 30 according to the embodiment of the present invention.
  • FIG. 9 is a perspective view showing a state in which the PC panel block 30 is assembled between the PC corner block 20 and the PC reference block 10 according to an embodiment of the present invention.
  • the PC panel block 30 is in the form of a plate, and it can be seen that the protruding ends 31 are formed on both end surfaces in the longitudinal direction. Therefore, the H file 2 is coupled to the pile insertion end 11 of the PC reference block 10, and the H file 2 is coupled to the pile insertion end 21 of the PC corner block, as shown in FIG. Likewise, the PC panel block 30 is configured to be assembled and fastened between the panel insertion end 12 of the PC reference block 10 and the panel insertion end 12 of another PC reference block 10, and the PC It can be seen that the PC panel block 30 is configured to be assembled and fastened between the panel insertion end 12 of the reference block 10 and the panel insertion end 22 of the PC corner block.
  • FIG. 10 is a perspective view showing the H-pillar (2) is installed after the ground drilling according to an embodiment of the present invention.
  • the PC corner block 20 is mounted on the H file (2) installed near the corner.
  • the PC reference block 10 is mounted on each of the remaining H files 2 (S2). 11 and 12 are a side sectional view and a perspective view of a state in which the PC reference block 10 and the PC corner block 20 are mounted on the H file 2 after the H file 2 is installed according to an embodiment of the present invention. it will be shown
  • the foundation is first excavated. For example, about 2m is excavated (S3). 13 is a side sectional view showing a state of primary excavation of the foundation ground according to an embodiment of the present invention.
  • FIG. 14 is a side sectional view showing a state in which the PC corner block 20 is first press-fitted according to an embodiment of the present invention.
  • 15 is a state in which the PC reference block 10 is first press-fitted, and the PC panel block 30 is press-fitted between the PC corner block 20 and the PC reference block 10 according to an embodiment of the present invention.
  • a side cross-sectional view is shown.
  • FIG. 16 is a side cross-sectional view showing a state in which the PC panel is first press-fitted sequentially according to an embodiment of the present invention.
  • the PC corner block 20 is first press-fitted, the PC reference block 10 is first press-fitted, and the PC panel block 30 is installed therebetween, , after first press-fitting the PC reference block 10 in sequence, the PC panel block 30 is installed between the PC reference blocks 10 .
  • Figure 17 shows a side cross-sectional view of a state in which the secondary excavation of the PC panel lower base part pressed in first according to an embodiment of the present invention.
  • FIG. 18 is a side cross-sectional view showing a state in which the PC panel is secondarily press-fitted according to an embodiment of the present invention.
  • a temporary temporary panel 40 for retaining is installed at the upper end thereof (S8).
  • 19 is a second press-fitting of the PC corner block 20, the PC reference block 10, and the PC panel block 30 according to an embodiment of the present invention, and a temporary temporary panel 40 for retaining is installed on the top. A side cross-sectional view of the state is shown.
  • 20 and 21 are a side cross-sectional view and a perspective view of a state in which a temporary temporary panel 40 for retaining is installed on the upper end of the PC panel press-fitted sequentially according to an embodiment of the present invention.
  • 22 is a perspective view showing a lower foundation structure wall construction according to an embodiment of the present invention.
  • FIG. 23 is a side cross-sectional view of a state in which the reinforcement 110 and reinforcing bars are installed inside the lower foundation wall according to an embodiment of the present invention, and the foundation concrete is poured.
  • the strut tie reinforcement 110 is installed inside the wall of the foundation structure, and after assembling the reinforcing bars, the concrete is poured.
  • the strut tie reinforcement 110 by applying the strut tie reinforcement 110, it is possible to increase the maximum load carrying capacity while reducing the thickness of the lower foundation structure (100). Due to the concrete filling effect in the strut and the role of the tie steel rod, the stress transfer in the lower foundation structure 100 is smoothly performed, so that the load carrying capacity can be improved even when the thickness of the lower foundation structure 100 is reduced.
  • the compression part is reinforced by the strut according to the embodiment of the present invention, and the tension part is composed of a tie using a steel bar, so that the concrete filling effect in the strut and the upper load transmitted from the tie steel copper column are more effectively transmitted through the strut to the lower part It is possible to improve the load-bearing capacity even when the thickness of the base structure 100 is reduced.
  • the strut tie reinforcement 110 includes a base unit 50 having a strut tie member, and a steel box unit 90 anchored to the upper end of the base unit 50 . may be included.
  • FIG 24 is a perspective view showing a state in which the base unit 50 of the strut tie reinforcement 110 is installed inside the lower foundation wall according to an embodiment of the present invention.
  • Figure 25 is a perspective view of the base unit of the strut tie reinforcement inside the lower foundation wall according to an embodiment of the present invention
  • Figure 26 is the foundation of the strut tie reinforcement inside the lower foundation wall according to an embodiment of the present invention A front view of the sub-unit is shown.
  • the base unit 50 is configured to include a strut tie member, and a base anchor frame (80).
  • the base unit 50 is installed at the construction position of the main body 101 of the lower base structure 100 .
  • the strut tie member is composed of a plurality of longitudinal struts 60 and longitudinal ties 67, and a plurality of transverse struts 70 and transverse ties 77 are coupled.
  • FIG. 27 is a plan view of a strut tie member of the base unit 50 according to an embodiment of the present invention.
  • Fig. 28 is a cross-sectional view taken along line A-A of Fig. 27,
  • Fig. 29 is a cross-sectional view taken along line B-B of Fig. 27, and
  • Fig. 30 is a perspective view of a steel box unit according to an embodiment of the present invention.
  • each of the longitudinal struts 60 is configured to include a pair of longitudinal strut portions 61 and a pair of connecting members 69 for connecting the respective upper ends of the longitudinal strut portions 61 .
  • the longitudinal tie 67 is configured to tensionly connect the lower ends of the pair of longitudinal struts 61 .
  • transverse strut 70 is connected in the vertical direction of the longitudinal strut 60, and in the embodiment of the present invention, as shown in FIGS. It can be seen that it can be arranged.
  • Each of the lateral struts 70 has a pair of lateral strut portions 71 and a connecting member 79 for connecting the pair of upper ends of the pair of lateral strut portions 71 .
  • the transverse tie 77 is to tensionly connect the lower end of the pair of transverse struts 71 .
  • the longitudinal strut portion 61 and the transverse strut portion 71 have a plate shape in which the plane direction is vertically positioned.
  • the rim portion of the strut portion (61, 71) has upper end surfaces (62, 72) in the planar direction, and lower end surfaces (65, 75) in the planar direction longer than the upper surface, and is connected to the connecting members (69, 79). It has a vertical inner surface and a vertical outer surface 64 and 74 longer than this inner surface. And it can be seen that it is composed of outer inclined surfaces 63 and 73 connecting the upper surfaces 62 and 72 and the outer surfaces, and inner inclined surfaces 66 and 76 connecting the inner surfaces and the lower surfaces 65 and 75 .
  • flanges 68 and 78 are installed on the outer surfaces 64 and 74, respectively, and the ties 67 and 77 are connected through these flanges 68 and 78.
  • the base unit 50 of the present invention includes a base anchor frame 80 installed inside the lower end of the space between the pair of longitudinal struts 60, and is disposed in the vertical direction inside the base anchor frame 80 A plurality of anchor bolts 81 are installed through the anchor bolt connection portion (82).
  • the steel box unit 90 is installed at the construction position of the column connection part 102 of the lower basic structure 100, and as shown in FIG. 22, the steel box ( 91), the anchor frame 92 installed inside the steel box 91, and a plurality of anchor bolt insertion members 93 coupled to the anchor frame 92 and arranged vertically. .
  • FIG. 31 is an exploded perspective view of the base unit 50 and the steel box unit 90 according to an embodiment of the present invention.
  • 32 is a perspective view of the strut tie reinforcement installed in the foundation structure wall according to an embodiment of the present invention.
  • Figure 33 shows a plan view of the strut tie reinforcement 110 according to the embodiment of the present invention.
  • FIG. 34 is a cross-sectional view taken along line A-A of FIG. 33
  • FIG. 35 is a cross-sectional view taken along line B-B of FIG. 33 .
  • connection between the base unit 50 and the steel box unit 50 is performed after the base unit 50 is installed in the inner space of the base structure wall, and then the anchor of the steel box unit 90 is performed.
  • the anchor bolt 81 of the base unit 50 is inserted into each of the bolt insertion members 93, the steel box unit 90 is connected and fastened.
  • the body part 101 is manufactured by pouring concrete on the side of the base unit 50
  • the column connection part 102 is manufactured by pouring concrete into the steel box unit 90 .
  • FIG. 36 is a side cross-sectional view of a state in which the temporary panel 40 and the H-pillar 2 are removed according to an embodiment of the present invention.
  • FIGS. 37 and 38 show a side cross-sectional view and a perspective view of the lower basic structure 100 constructed according to an embodiment of the present invention.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
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  • Retaining Walls (AREA)

Abstract

The present invention relates to a lower foundation construction method using a mold-integrated PC panel and, more specifically, to a lower foundation construction method using a mold-integrated PC panel, comprising the steps of: inserting a plurality of piles after a hole is bored in the ground, and then placing a PC panel on the piles to construct a PC wall; excavating the ground of a foundation part, and then pressing-in the PC panel to form a lower foundation structure wall; providing, on the upper end of the PC panel, a temporary construction panel for an earth-retaining structure; arranging reinforcing bars inside the foundation structure wall, and then pouring concrete to construct a lower foundation structure; and removing the temporary construction panel and the piles.

Description

거푸집 일체화 PC 패널을 이용한 하부기초 시공방법, 스트럿 타이 보강재를 이용한 하부기초구조 및 그 시공방법Lower foundation construction method using formwork-integrated PC panel, lower foundation structure using strut tie reinforcement and its construction method
본 발명은 거푸집 일체화 PC 패널을 이용한 하부기초 시공방법, 그리고 스트럿 타이 보강재를 이용한 하부기초구조 및 그 시공방법에 대한 것이다. The present invention relates to a lower foundation construction method using a formwork-integrated PC panel, and a lower foundation structure using a strut tie reinforcement and a construction method thereof.
건축공사나 토목공사의 지하구조물 구축공사시 일반적인 공사방법으로는 지하굴착공사 전 수직H형강(엄지말뚝,이하 엄지말뚝으로 칭함)을 압입 또는 타입하여 박고 굴착하면서 목재토류판을 수평방향으로 엄지말뚝에 걸치면서 적층식으로 설치하여 지하를 굴착한다.As a general construction method when constructing an underground structure in a building or civil engineering project, a vertical H-beam (thumb pile, hereinafter referred to as a thumb pile) is press-fitted or typed before the underground excavation work, and the wooden earth plate is placed in the thumb pile in the horizontal direction while excavating. The underground is excavated by installing them in a stacked manner.
이때 굴착하는 위치는 지하 외벽의 거푸집작업을 위한 공간을 위해 구조물 외곽선에서 약 500mm이상 이격된 위치에 굴착하게 된다.At this time, the excavation site is to be excavated at a position that is separated by about 500mm or more from the outline of the structure for a space for the formwork of the underground outer wall.
지하 굴착이 끝난 후 지하외벽 설치위치에 맞추어 수직 및 수평보강근을 시공하고 이후 벽체 전/후면에 거푸집공사를 한 후 콘크리트를 타설하여 지하구조체를 완성하게 된다.After the underground excavation is completed, vertical and horizontal reinforcing bars are installed according to the installation location of the underground outer wall, and after formwork is done on the front/rear side of the wall, concrete is poured to complete the underground structure.
그러나 H형강과 목재토류판으로 토류벽을 형성하여 흙막이 벽체를 형성하는 공법은 지하구조물 벽체의 거푸집을설치하고 작업하기 위하여 상당한 여유공간을 필요로 하는 만큼 터파기 작업량이 증가하고, 지하구조물 완성 후에는 되메우기 작업량이 늘어난다는 낭비적인 요소가 있어 지하외벽 전면에만 거푸집을 설치하여 공사하는 합벽공사방법을 현장에서 사용되나 지하외벽 합벽시스템의 경우 시공오차 등의 관계로 벽체의 두께를 일정하게 확보되는 것이 힘들며, 콘크리트 타설시 거푸집에는 측압이 작용하게 되는데 이를 지탱하기 위해 전면 거푸집 앞면에 서포트를 촘촘히 설치해야 하는 등의 단점이 있었다.However, the construction method of forming a retaining wall by forming an earth wall with H-beam steel and wooden earth plate increases the amount of excavation work as it requires a considerable amount of free space to install and work the formwork for the wall of the underground structure. There is a wasteful factor that increases the amount of work, so the combined wall construction method in which a form is installed only on the front of the outer basement wall is used in the field. When concrete is poured, lateral pressure is applied to the formwork, and there were disadvantages such as the need to tightly install a support on the front side of the front formwork to support it.
도 1은 KR공개특허 제2003-10407호(20030205공개)의 평단면도를 도시한 것이다. 종래 H빔과 목재판을 이용하여 토류벽을 형성하는 흙막이 벽체공법의 낭비적인 요소를 해소하기 위하여 KR공개 특허제2003-10407호(2003.02.05공개)에서는 도면과 같이 H형강으로 이루어진 엄지말뚝을 지중에 수직으로 근입시켜 설치하고, 보강용 섬유를 함유하고 있는 섬유보강소일시멘트를 연결철물이 지하외벽의 콘크리트에 걸쳐져 매립될 수 있도록 위치하게 한 후 섬유보강소일시멘트를 상기 엄지말뚝을 둘러싸고 엄지말뚝 사이를 채우도록 타설하는 것을 특징으로 하는 흙막이 구조물 시공방법을 제안하여 흙막이 구조물이 건축물의 지하외벽과 합성되게 하여 거푸집을 대신할 수 있게 한 것이 공지되어 있었다.1 shows a plan sectional view of KR Patent Publication No. 2003-10407 (published in 20030205). In order to solve the wasteful element of the retaining wall method for forming an earth wall using a conventional H-beam and a wooden board, in KR Patent Publication No. 2003-10407 (published on February 5, 2003), a thumb pile made of H-beams was built underground as shown in the drawing. After installing it vertically, place the fiber-reinforced cement containing reinforcing fibers so that the connecting hardware can be embedded in the concrete of the outer basement wall, and then apply the fiber-reinforced cement to the thumb piles and between the thumb piles. It has been known that a retaining structure construction method characterized in that it is poured so as to be filled, and the retaining structure can be synthesized with the underground outer wall of the building to replace the formwork.
그러나 상기와 같은 구성은 엄지말뚝 주위와 사이에 섬유보강소일시멘트를 채워 넣는 흙막이 벽체를 형성하여야하고, H빔을 흙막이 벽체와 함께 영구히 지하에 매설하여야 하므로 공사비가 과다하게 소요된다는 문제점이 있었다.However, in the above configuration, a retaining wall to be filled with fiber-reinforced small cement must be formed around and between the thumb piles, and the H-beam must be permanently buried underground together with the retaining wall, so there is a problem that the construction cost is excessive.
본 발명의 실시예에 따르면, 현장타설기초와, PC패널과 H-파일을 적용한 PC벽체를 이용하여 하부기초구조 시공시, PC벽체를 거푸집으로 이용하면서 동시에 하부기초구조의 메인 벽체로 시공이 가능한 목적을 갖는다. According to an embodiment of the present invention, when constructing a lower foundation structure using a cast-in-place foundation and a PC wall to which a PC panel and H-pile are applied, it is possible to use the PC wall as a formwork while simultaneously constructing it as the main wall of the lower foundation structure. have a purpose
본 발명의 실시예에 따르면, 현장타설기초와 일체식 PC 패널을 적용하여 가시설 점유 면적을 축소시킬 수 있고, 기초 심도를 축소하여 굴착량을 축소시킬 수 있어 공기축소 및 가설심도를 단축할 수 있으며, H-파일 재사용으로 공사비 절감 및 거푸집 해체 기간을 단축시킬 수 있는 거푸집 일체화 PC 패널을 이용한 하부기초 시공방법을 제공하는데 목적이 있다. According to the embodiment of the present invention, it is possible to reduce the area occupied by the temporary facility by applying the cast-in-place foundation and the integrated PC panel, and it is possible to reduce the amount of excavation by reducing the depth of the foundation, thereby reducing the construction period and the depth of the temporary facility. , The purpose of this is to provide a lower foundation construction method using a formwork-integrated PC panel that can reduce construction costs and shorten the formwork dismantling period by reusing H-pillars.
본 발명의 실시예에 따르면, 하이브리드 PC벽체와 함께, 기초 심도를 절감할 수 있는 스트럿-타이 보강재를 갖는 교각하부 기초구조물 및 그 시공방법을 제공하는데 목적이 있다 According to an embodiment of the present invention, along with a hybrid PC wall, struts that can reduce the depth of the foundation-to provide a lower pier foundation structure having a tie reinforcement and a construction method thereof
본 발명의 실시예에 따르면, 도심지의 기초 공사에 있어서 기초 심도를 축소시켜 기초구조물의 두께와 굴착량을 축소하여 공기축소 및 가설심도 단축을 달성할 수 있는 목적이 있다. According to an embodiment of the present invention, there is an object of reducing the depth of the foundation and reducing the thickness of the foundation structure and the amount of excavation to achieve the reduction of the construction period and the reduction of the depth of temporary construction in the city center construction.
또한 본 발명의 실시예에 따르면, 스트럿-타이 보강재를 통해 하부기초의 두께를 감소시킴에도 내하력을 개선시킬 수 있는 목적이 달성될 수 있다. In addition, according to the embodiment of the present invention, the object of improving the load carrying capacity can be achieved even though the thickness of the lower foundation is reduced through the strut-tie reinforcement.
한편, 본 발명에서 이루고자 하는 기술적 과제들은 이상에서 언급한 기술적 과제들로 제한되지 않으며, 언급하지 않은 또 다른 기술적 과제들은 아래의 기재로부터 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 명확하게 이해될 수 있을 것이다.On the other hand, the technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned are clearly to those of ordinary skill in the art to which the present invention belongs from the description below. can be understood
본 발명의 제1목적은, 지반천공 후 복수의 파일을 삽입 후, 상기 파일에 PC패널을 거치하여 PC벽체를 시공하는 단계; 기초부 지반 굴착 후, 상기 PC패널을 압입하여 하부 기초구조벽체를 제작하는 단계; PC패널 상단에 흙막이용 임시가설패널을 설치하는 단계; 기초구조벽체 내부에 철근 배근 후, 콘크리트를 타설하여 하부기초구조를 시공하는 단계; 및 임시가설패널과 파일을 제거하는 단계;를 포함하는 것을 특징으로 하는, 거푸집 일체화 PC 패널을 이용한 하부기초 시공방법으로서 달성될 수 있다. A first object of the present invention, after inserting a plurality of piles after drilling the ground, mounting the PC panel on the pile to construct a PC wall; After excavating the ground of the foundation, press-fitting the PC panel to manufacture a lower foundation structure wall; Installing a temporary temporary panel for retaining on the top of the PC panel; After reinforcing reinforcement inside the wall of the foundation structure, pouring concrete to construct the lower foundation structure; and removing the temporary temporary panel and the pile; it can be achieved as a lower foundation construction method using a formwork-integrated PC panel, characterized in that it includes.
그리고 상기 파일은 H파일인 것을 특징으로 할 수 있다. And the file may be characterized as an H file.
또한 상기 PC패널은 PC기준블록, PC코너블록 및 PC패널블록을 포함하고, 상기 PC패널블록은 PC기준블록과 PC코너블록 사이, 및 PC기준블록과 PC기준블록 사이에 조립되어 결합되는 것을 특징으로 할 수 있다. In addition, the PC panel includes a PC reference block, a PC corner block, and a PC panel block, wherein the PC panel block is assembled between the PC reference block and the PC corner block, and between the PC reference block and the PC reference block. can be done with
그리고 상기 PC기준블록은 측면부 일측에 길이방향을 따라 H파일의 플랜지 양단이 삽입되는 파일삽입단과, 양측단면 각각에 구비되는 패널 삽입단을 포함하는 것을 특징으로 할 수 있다. And the PC reference block may include a pile insertion end into which both ends of the flange of the H file are inserted along the longitudinal direction on one side of the side part, and a panel insertion end provided on each of both side end surfaces.
또한 PC코너블록은 ㄱ자 단면을 갖고, 외측면에 형성되는 파일삽입단과, 내측면 각각에 형성되는 패널삽입단을 포함하는 것을 특징으로 할 수 있다. In addition, the PC corner block may have a L-shaped cross section, and may include a pile insertion end formed on the outer surface, and a panel insertion end formed on each of the inner surface.
그리고 상기 PC패널블록은 판 형태로, 양측단면에 길이방향으로 돌출단이 형성되고, 상기 PC기준블록의 파일삽입단으로 H파일이 결합되며, 상기 PC코너블록의 파일삽입단으로 H파일이 결합되고, 상기 PC기준블록의 패널삽입단과 또 다른 PC기준블록의 패널삽입단 사이에 상기 PC패널블록이 체결되고, 상기 PC기준블록의 패널삽입단과 상기 PC코너블록의 패널삽입단 사이에 상기 PC패널블록이 체결되는 것을 특징으로 할 수 있다. And the PC panel block is in the form of a plate, protruding ends are formed on both end surfaces in the longitudinal direction, the H file is coupled to the pile insertion end of the PC reference block, and the H file is coupled to the pile insertion end of the PC corner block. and the PC panel block is fastened between the panel insertion end of the PC reference block and the panel insertion end of another PC reference block, and the PC panel between the panel insertion end of the PC reference block and the panel insertion end of the PC corner block It may be characterized in that the block is fastened.
그리고 하부 기초구조벽체를 제작하는 단계는, H파일 관입 후, 상기 H파일 각각의 상단으로 상기 PC코너블록과 상기 PC기준블록을 거치하는 제1단계; 기초부를 굴착하는 제2단계; 및 상기 PC코너블록과 상기 PC기준블록을 순차적으로 압입하고, 상기 PC코너블록과 상기 PC기준블록 사이, 및 상기 PC기준블록과 근접한 다른 PC기준블록 사이에 상기 PC패널블록을 삽입하여 조립하는 제3단계;을 포함하는 것을 특징으로 할 수 있다. And the step of manufacturing the lower foundation structure wall, the first step of mounting the PC corner block and the PC reference block to the upper end of each of the H pile after the penetration of the H pile; a second step of excavating the foundation; and sequentially press-fitting the PC corner block and the PC reference block, and inserting and assembling the PC panel block between the PC corner block and the PC reference block and between the PC reference block and other PC reference blocks adjacent to the PC reference block. Step 3; may be characterized as comprising.
또한 하부 지반을 굴착하고, 상기 PC코너블록과 상기 PC패널블곡과 상기 PC기준블록을 순차적으로 압입하는 단계를 기초입도에 따라 반복하는 제4단계를 더 포함하는 것을 특징으로 할 수 있다. In addition, it may be characterized by further comprising a fourth step of excavating the lower ground and repeating the steps of sequentially press-fitting the PC corner block, the PC panel block, and the PC reference block according to the basic grain size.
그리고 상기 하부기초구조를 시공하는 단계에서, 기초구조벽체 내부에 스트럿 타이 보강재를 설치하고, 철근을 조립한 후, 콘크리트를 타설하여 하부기초구조를 시공하는 것을 특징으로 할 수 있다. And in the step of constructing the lower foundation structure, it may be characterized in that the strut tie reinforcement is installed inside the wall of the foundation structure, the reinforcing bar is assembled, and then the concrete is poured to construct the lower foundation structure.
본 발명의 제2목적은 앞서 언급한 제1목적에 따른 시공방법에 의해 시공된 것을 특징으로 하는 일체화 PC 패널을 이용한 하부기초구조로서 달성될 수 있다. The second object of the present invention can be achieved as a lower foundation structure using an integrated PC panel, characterized in that it is constructed by the construction method according to the first object mentioned above.
본 발명의 실시예에 따른 거푸집 일체화 PC 패널을 이용한 하부기초 시공방법에 따르면, 현장타설기초와, PC패널과 H-파일을 적용한 PC벽체를 이용하여 하부기초구조 시공시, PC벽체를 거푸집으로 이용하면서 동시에 하부기초구조의 메인 벽체로 시공이 가능한 효과를 갖는다. According to the lower foundation construction method using the formwork-integrated PC panel according to the embodiment of the present invention, the PC wall is used as the formwork when constructing the lower foundation structure using the cast-in-place foundation, the PC panel and the PC wall to which the H-file is applied. At the same time, it has the effect that it can be constructed as the main wall of the lower foundation structure.
본 발명에 따른 거푸집 일체화 PC 패널을 이용한 하부기초 시공방법에 따르면, 현장타설기초와 일체식 PC 패널을 적용하여 가시설 점유 면적을 축소시킬 수 있고, 기초 심도를 축소하여 굴착량을 축소시킬 수 있어 공기축소 및 가설심도를 단축할 수 있으며, H-파일 재사용으로 공사비 절감 및 거푸집 해체 기간을 단축시킬 수 있는 장점이 있다. According to the lower foundation construction method using the formwork-integrated PC panel according to the present invention, the area occupied by the temporary facility can be reduced by applying the cast-in-place foundation and the integrated PC panel, and the amount of excavation can be reduced by reducing the depth of the foundation. It has the advantage of being able to shorten the reduction and the depth of temporary construction, and to reduce the construction cost and the period of dismantling the formwork by reusing the H-pillar.
본 발명의 실시예에 따른 스트럿-타이 보강재를 갖는 교각하부 기초구조물 및 그 시공방법에 따르면, 하이브리드 PC벽체와 함께, 기초 심도를 절감할 수 있는 효과를 갖는다. Struts according to an embodiment of the present invention - According to the lower pier foundation structure having a tie reinforcement and its construction method, together with the hybrid PC wall, it has the effect of reducing the depth of the foundation.
본 발명의 실시예에 따른 스트럿-타이 보강재를 갖는 교각하부 기초구조물 및 그 시공방법에 따르면, 도심지의 기초 공사에 있어서 기초 심도를 축소시켜 기초구조물의 두께와 굴착량을 축소하여 공기축소 및 가설심도를 단축시킬 수 있는 장점이 있다. According to an embodiment of the present invention, the lower pier foundation structure having a strut-tie reinforcement and a construction method therefor, reduce the thickness of the foundation structure and the amount of excavation by reducing the depth of the foundation in the downtown foundation construction, thereby reducing air and temporary depth has the advantage of being shortened.
본 발명의 실시예에 따른 스트럿-타이 보강재를 갖는 교각하부 기초구조물 및 그 시공방법에 따르면, 스트럿-타이 보강재를 통해 하부기초의 두께를 감소시킴에도 내하력을 개선시킬 수 있는 효과를 갖는다. According to an embodiment of the present invention, the strut-tie lower pier foundation structure having the reinforcement and the construction method thereof have the effect of improving the load-bearing capacity even though the thickness of the lower foundation is reduced through the strut-tie reinforcement.
한편, 본 발명에서 얻을 수 있는 효과는 이상에서 언급한 효과들로 제한되지 않으며, 언급하지 않은 또 다른 효과들은 아래의 기재로부터 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 명확하게 이해될 수 있을 것이다.On the other hand, the effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the description below. will be able
도 1은 KR공개특허 제2003-10407호(20030205공개)의 평단면도,1 is a plan sectional view of KR Patent Publication No. 2003-10407 (published in 20030205);
도 2는 본 발명의 실시예에 따른 거푸집 일체화 PC 패널을 이용한 하부기초 시공방법의 흐름도,2 is a flowchart of a lower foundation construction method using a formwork-integrated PC panel according to an embodiment of the present invention;
도 3은 본 발명의 실시예에 다른 H파일과 PC 패널이 결합된 PC 벽체의 정면도, 3 is a front view of a PC wall combined with an H file and a PC panel according to an embodiment of the present invention;
도 4는 본 발명의 실시예에 따른 PC기준블록의 사시도, 4 is a perspective view of a PC reference block according to an embodiment of the present invention;
도 5는 본 발명의 실시예에 따른 H파일이 삽입된 PC기준블록의 평면도,5 is a plan view of a PC reference block into which an H file is inserted according to an embodiment of the present invention;
도 6은 본 발명의 실시예에 따른 PC코너블록의 사시도, 6 is a perspective view of a PC corner block according to an embodiment of the present invention;
도 7은 본 발명의 실시예에 따른 H파일이 삽입된 PC코너블록의 평면도,7 is a plan view of a PC corner block into which an H file is inserted according to an embodiment of the present invention;
도 8은 본 발명의 실시예에 따른 PC패널블록의 사시도, 8 is a perspective view of a PC panel block according to an embodiment of the present invention;
도 9는 본 발명의 실시예에 따라 PC코너블록과 PC기준블록 사이에 PC패널블록이 조립된 상태의 사시도, 9 is a perspective view of a state in which a PC panel block is assembled between a PC corner block and a PC reference block according to an embodiment of the present invention;
도 10은 본 발명의 실시예에 따라 지반천공 후, H파일을 설치한 사시도, 10 is a perspective view of an H file installed after ground drilling according to an embodiment of the present invention;
도 11 및 도 12는 본 발명의 실시예에 따라 H파일을 설치후 PC기준블록과 PC코너블록을 H파일에 거치하는 상태의 측단면도와 사시도, 11 and 12 are a side cross-sectional view and a perspective view of a state in which the PC reference block and the PC corner block are mounted on the H file after the H file is installed according to an embodiment of the present invention;
도 13은 본 발명의 실시예에 따라 기초부 지반을 1차 굴착하는 상태의 측단면도, 13 is a side cross-sectional view of a state of primary excavation of the foundation ground according to an embodiment of the present invention;
도 14는 본 발명의 실시예에 따라 PC코너블록을 1차 압입한 상태의 측단면도, 14 is a side cross-sectional view of a state in which a PC corner block is first press-fitted according to an embodiment of the present invention;
도 15는 본 발명의 실시예에 따라 PC기준블록을 1차 압입하고, PC코너블록과 PC기준블록 사이에 PC패널블록을 압입하여 조립한 상태의 측단면도, 15 is a side cross-sectional view of a state in which the PC reference block is first press-fitted and the PC panel block is press-fitted between the PC corner block and the PC reference block according to an embodiment of the present invention;
도 16은 본 발명의 실시예에 따라 PC 패널을 순차적으로 1차 압입하는 상태의 측단면도, 16 is a side cross-sectional view of a state in which the PC panel is sequentially first press-fitted according to an embodiment of the present invention;
도 17은 본 발명의 실시예에 따라 1차 압입된 PC패널 하부 기초부를 2차 굴착하는 상태의 측단면도, 17 is a side cross-sectional view of a state in which the primary press-fitted PC panel lower base part is secondary excavated according to an embodiment of the present invention;
도 18은 본 발명의 실시예에 따라 PC패널을 2차 압입하는 상태의 측단면도,18 is a side cross-sectional view of a state in which the PC panel is secondarily press-fitted according to an embodiment of the present invention;
도 19는 본 발명의 실시예에 따라 PC코너블록과 PC기준블록과 PC패널블록을 2차 압입하고, 그 상단에 흙막이용 임시가설패널을 설치한 상태의 측단면도,19 is a side cross-sectional view of a state in which a PC corner block, a PC reference block, and a PC panel block are secondarily press-fitted, and a temporary temporary panel for retaining is installed on the top according to an embodiment of the present invention;
도 20 및 도 21은 본 발명의 실시예에 따른 본 발명의 실시예에 따라 순차적으로 2차 압입된 PC패널 상단부에 흙막이용 임시가설패널을 설치한 상태의 측단면도와 사시도, 20 and 21 are a side cross-sectional view and a perspective view of a state in which a temporary temporary panel for retaining is installed on the upper end of the PC panel press-fitted sequentially according to an embodiment of the present invention;
도 22는 본 발명의 실시예에 따른 하부기초벽체가 시공된 사시도, 22 is a perspective view of a lower foundation wall constructed according to an embodiment of the present invention;
도 23은 본 발명의 실시예에 따른 하부기초벽체 내부에 보강재와 철근을 설치하고, 기초콘크리트를 타설한 상태의 측단면도, 23 is a side cross-sectional view of a state in which reinforcing materials and reinforcing bars are installed inside the lower foundation wall according to an embodiment of the present invention, and the foundation concrete is poured;
도 24는 본 발명의 실시예에 따른 하부기초벽체 내부에 스트럿 타이 보강재의 기초부 유닛을 설치한 상태의 사시도, 24 is a perspective view of a state in which the base unit of the strut tie reinforcement is installed inside the lower foundation wall according to an embodiment of the present invention;
도 25는 본 발명의 실시예에 따른 하부기초벽체 내부에 스트럿 타이 보강재의 기초부 유닛의 사시도, 25 is a perspective view of a base unit of a strut tie reinforcement inside a lower foundation wall according to an embodiment of the present invention;
도 26은 본 발명의 실시예에 따른 하부기초벽체 내부에 스트럿 타이 보강재의 기초부 유닛의 정면도, 26 is a front view of the foundation unit of the strut tie reinforcement inside the lower foundation wall according to an embodiment of the present invention;
도 27은 본 발명의 실시예에 따른 기초부 유닛의 스트럿 타이부재의 평면도, 27 is a plan view of a strut tie member of a base unit according to an embodiment of the present invention;
도 28은 도 27의 A-A단면도, 28 is a cross-sectional view taken along line A-A of FIG. 27;
도 29는 도 27의 B-B단면도, 29 is a sectional view taken along line B-B of FIG. 27;
도 30은 본 발명의 실시예에 따른 강박스 유닛의 사시도, 30 is a perspective view of a steel box unit according to an embodiment of the present invention;
도 31은 본 발명의 실시예에 따른 기초부 유닛과 강박스 유닛의 분해 사시도, 31 is an exploded perspective view of a base unit and a steel box unit according to an embodiment of the present invention;
도 32는 본 발명의 실시예에 따른 기초구조벽체 내에 설치된 스트럿 타이 보강재의 사시도, 32 is a perspective view of a strut tie reinforcement installed in a foundation structure wall according to an embodiment of the present invention;
도 33은 본 발명의 실시예에 따른 스트럿 타이 보강재의 평면도, 33 is a plan view of a strut tie reinforcement according to an embodiment of the present invention;
도 34는 도 33의 A-A 단면도, 34 is a cross-sectional view taken along line A-A of FIG. 33;
도 35는 도 33의 B-B 단면도Fig. 35 is a cross-sectional view taken along line B-B of Fig. 33;
도 36은 본 발명의 실시예에 따라 임시가설패널과 H파일을 제거하는 상태의 측단면도, 36 is a side cross-sectional view of a state in which the temporary panel and the H file are removed according to an embodiment of the present invention;
도 37 및 도 38은 본 발명의 실시예에 따라 시공된 하부기초구조의 측단면도와 사시도를 도시한 것이다. 37 and 38 show a side cross-sectional view and a perspective view of a lower base structure constructed according to an embodiment of the present invention.
이하에서는 본 발명의 실시예에 따른 본 발명의 실시예에 따른 거푸집 일체화 PC 패널을 이용한 하부기초 시공방법에 대해 설명하도록 한다. Hereinafter, a lower foundation construction method using a formwork-integrated PC panel according to an embodiment of the present invention according to an embodiment of the present invention will be described.
먼저, 도 2는 본 발명의 실시예에 따른 거푸집 일체화 PC 패널을 이용한 하부기초 시공방법의 흐름도를 도시한 것이다. First, Figure 2 shows a flowchart of a lower foundation construction method using a formwork-integrated PC panel according to an embodiment of the present invention.
본 발명의 실시예에 따른 하부기초구조(100) 시공에서는 거푸집과 동시에 기초구조벽체로 일체화되는 PC벽체(1)를 이용하게 된다. In the construction of the lower base structure 100 according to the embodiment of the present invention, the PC wall 1 integrated with the formwork and the base structure wall is used at the same time.
거푸집 일체화 PC 패널을 이용한 하부기초 시공방법의 설명에 앞서, 하부기초구조 시공에 적용되는 PC 벽체(1)의 구성에 대해 먼저 설명하도록 한다. Prior to the description of the lower foundation construction method using the formwork-integrated PC panel, the configuration of the PC wall 1 applied to the lower foundation structure construction will be described first.
도 3은 본 발명의 실시예에 따른 H파일(2)과 PC 패널이 결합된 PC 벽체(1)의 정면도를 도시한 것이다. 도 3에 도시된 바와 같이, 본 발명에 따른 PC벽체(1)는 H파일(2)과 PC패널(3)을 포함하여 구성된다. 3 shows a front view of the PC wall (1) to which the H-file (2) and the PC panel are combined according to an embodiment of the present invention. As shown in FIG. 3 , the PC wall 1 according to the present invention is configured to include an H file 2 and a PC panel 3 .
본 발명의 실시예에 따른 PC패널(3)은 PC기준블록(10), PC코너블록(20) 및 PC패널블록(30)을 포함하여 구성될 수 있다. 또한, 이러한 PC패널은 섬유 보강 시멘트 복합재, 섬유 보강매쉬 등을 포함하여 구성될 수 있다. 그리고, PC패널블록(30)은 PC기준블록(10)과 PC코너블록(20) 사이, 및 PC기준블록(10)과 PC기준블록(10) 사이에 조립되어 결합되어 기초구조벽체를 제작할 수 있게 된다. The PC panel 3 according to the embodiment of the present invention may be configured to include a PC reference block 10 , a PC corner block 20 and a PC panel block 30 . In addition, such a PC panel may be configured to include a fiber-reinforced cement composite, a fiber-reinforced mesh, and the like. And, the PC panel block 30 is assembled between the PC reference block 10 and the PC corner block 20, and between the PC reference block 10 and the PC reference block 10, to produce a base structure wall. there will be
도 4는 본 발명의 실시예에 따른 PC기준블록(10)의 사시도를 도시한 것이다. 그리고 도 5는 본 발명의 실시예에 따른 H파일(2)이 삽입된 PC기준블록(10)의 평면도를 도시한 것이다. 4 is a perspective view of the PC reference block 10 according to an embodiment of the present invention. And FIG. 5 shows a plan view of the PC reference block 10 into which the H-file 2 is inserted according to an embodiment of the present invention.
도 4 및 도 5에 도시된 바와 같이, PC기준블록(10)은 측면부 일측에 길이방향을 따라 H파일(2)의 플랜지 양단이 삽입되도록 형성된 파일삽입단(11)과, 양측단면 각각에 구비되는 패널 삽입단(12)을 포함하여 구성됨을 알 수 있다. 4 and 5, the PC reference block 10 is provided on one side of the side part along the longitudinal direction with the pile insertion end 11 formed so that both ends of the flange of the H file 2 are inserted, and at each of both side end surfaces It can be seen that the panel is configured to include the insertion end (12).
도 6은 본 발명의 실시예에 따른 PC코너블록(20)의 사시도를 도시한 것이다. 그리고 도 7은 본 발명의 실시예에 따른 H파일(2)이 삽입된 PC코너블록(20)의 평면도를 도시한 것이다. 6 is a perspective view of the PC corner block 20 according to an embodiment of the present invention. And Fig. 7 shows a plan view of the PC corner block 20 into which the H-file 2 is inserted according to an embodiment of the present invention.
도 6 및 도 7에 도시된 바와 같이, PC코너블록(20)은 전체적으로, ㄱ자 단면을 갖고, 외측면에 형성되는 파일삽입단(21)과, 내측면 각각에 형성되는 패널삽입단(22)을 포함하여 구성됨을 알 수 있다. 6 and 7, the PC corner block 20 as a whole has a L-shaped cross-section, a pile insertion end 21 formed on the outer surface, and a panel insertion end 22 formed on each inner surface. It can be seen that it is composed of
그리고 도 8은 본 발명의 실시예에 따른 PC패널블록(30)의 사시도를 도시한 것이다. 그리고, 도 9는 본 발명의 실시예에 따라 PC코너블록(20)과 PC기준블록(10) 사이에 PC패널블록(30)이 조립된 상태의 사시도를 도시한 것이다. And Figure 8 is a perspective view of the PC panel block 30 according to the embodiment of the present invention. And, FIG. 9 is a perspective view showing a state in which the PC panel block 30 is assembled between the PC corner block 20 and the PC reference block 10 according to an embodiment of the present invention.
본 발명의 실시예에 따른 PC패널블록(30)은 도 8에 도시된 바와 같이, 판 형태로, 양측단면에 길이방향으로 돌출단(31)이 형성됨을 알 수 있다. 따라서 PC기준블록(10)의 파일삽입단(11)으로 H파일(2)이 결합되며, PC코너블록의 파일삽입단(21)으로 H파일(2)이 결합되고, 도 9에 도시된 바와 같이, PC기준블록(10)의 패널삽입단(12)과 또 다른 PC기준블록(10)의 패널삽입단(12) 사이에 PC패널블록(30)이 조립, 체결될 수 있도록 구성되며, PC기준블록(10)의 패널삽입단(12)과 PC코너블록의 패널삽입단(22) 사이에 PC패널블록(30)이 조립, 체결될 수 있도록 구성됨을 알 수 있다. As shown in FIG. 8 , the PC panel block 30 according to the embodiment of the present invention is in the form of a plate, and it can be seen that the protruding ends 31 are formed on both end surfaces in the longitudinal direction. Therefore, the H file 2 is coupled to the pile insertion end 11 of the PC reference block 10, and the H file 2 is coupled to the pile insertion end 21 of the PC corner block, as shown in FIG. Likewise, the PC panel block 30 is configured to be assembled and fastened between the panel insertion end 12 of the PC reference block 10 and the panel insertion end 12 of another PC reference block 10, and the PC It can be seen that the PC panel block 30 is configured to be assembled and fastened between the panel insertion end 12 of the reference block 10 and the panel insertion end 22 of the PC corner block.
이하에서는 일체화 PC 패널을 이용한 하부기초구조(100) 시공방법에 대해 설명하도록 한다. Hereinafter, the construction method of the lower base structure 100 using the integrated PC panel will be described.
먼저, H파일(2)이 관입된 위치 각각에 대해 지반을 천공한 후, H 파일(2)을 설치하게 된다(모래채움 수직도 확보)(S1). 도 10은 본 발명의 실시예에 따라 지반천공 후, H파일(2)을 설치한 사시도를 도시한 것이다. First, after the ground is drilled for each of the positions where the H-piles 2 are penetrated, the H-piles 2 are installed (sand-filled verticality is ensured) (S1). Figure 10 is a perspective view showing the H-pillar (2) is installed after the ground drilling according to an embodiment of the present invention.
그리고 PC패널인 PC기준블록(10), PC코너블록(20), PC패널블록(30)을 현장으로 운반한 후, 코너 부근에 설치된 H파일(2)에 PC코너블록(20)을 거치하고, 나머지 H파일(2) 각각에 PC기준블록(10)을 거치시키게 된다(S2). 도 11 및 도 12는 본 발명의 실시예에 따라 H파일(2)을 설치후 PC기준블록(10)과 PC코너블록(20)을 H파일(2)에 거치하는 상태의 측단면도와 사시도를 도시한 것이다. And after transporting the PC reference block 10, the PC corner block 20, and the PC panel block 30, which are PC panels to the site, the PC corner block 20 is mounted on the H file (2) installed near the corner. , the PC reference block 10 is mounted on each of the remaining H files 2 (S2). 11 and 12 are a side sectional view and a perspective view of a state in which the PC reference block 10 and the PC corner block 20 are mounted on the H file 2 after the H file 2 is installed according to an embodiment of the present invention. it will be shown
PC기준블록(10), PC코너블록(20)의 거치가 완료되면, 기초부를 1차 굴착하게 된다. 예를 들어 2m정도를 굴착하게 된다(S3). 도 13은 본 발명의 실시예에 따라 기초부 지반을 1차 굴착하는 상태의 측단면도를 도시한 것이다. When the mounting of the PC reference block 10 and the PC corner block 20 is completed, the foundation is first excavated. For example, about 2m is excavated (S3). 13 is a side sectional view showing a state of primary excavation of the foundation ground according to an embodiment of the present invention.
그리고, 1차 굴착완료 후, PC코너블록(20)와 PC기준블록(10)을 1차 압입 후, 그 사이에 PC패널블록(30)을 삽입, 설치하게 된다(S4). And, after completion of the first excavation, after the first press-fitting of the PC corner block 20 and the PC reference block 10, the PC panel block 30 is inserted and installed therebetween (S4).
도 14는 본 발명의 실시예에 따라 PC코너블록(20)을 1차 압입한 상태의 측단면도를 도시한 것이다. 도 15는 본 발명의 실시예에 따라 PC기준블록(10)을 1차 압입하고, PC코너블록(20)과 PC기준블록(10) 사이에 PC패널블록(30)을 압입하여 조립한 상태의 측단면도를 도시한 것이다. 그리고 도 16은 본 발명의 실시예에 따라 PC 패널을 순차적으로 1차 압입하는 상태의 측단면도를 도시한 것이다. 14 is a side sectional view showing a state in which the PC corner block 20 is first press-fitted according to an embodiment of the present invention. 15 is a state in which the PC reference block 10 is first press-fitted, and the PC panel block 30 is press-fitted between the PC corner block 20 and the PC reference block 10 according to an embodiment of the present invention. A side cross-sectional view is shown. And FIG. 16 is a side cross-sectional view showing a state in which the PC panel is first press-fitted sequentially according to an embodiment of the present invention.
즉, 도 14 내지 도 16에 도시된 바와 같이, PC코너블록(20)을 1차 압입하고, PC기준블록(10)을 1차 압입한 후, 그 사이에 PC패널블록(30)을 설치하고, 순차적으로 PC기준블록(10)을 1차 압입한 후, PC기준블록(10) 사이에 PC패널블록(30)을 설치하게 된다. That is, as shown in FIGS. 14 to 16 , the PC corner block 20 is first press-fitted, the PC reference block 10 is first press-fitted, and the PC panel block 30 is installed therebetween, , after first press-fitting the PC reference block 10 in sequence, the PC panel block 30 is installed between the PC reference blocks 10 .
그리고 1차 압입이 완료된 후(S5)에, PC패널 하단측 기초부 지반을 2차 굴착하게 된다(예를 들어 약 1.5m)(S6). 도 17은 본 발명의 실시예에 따라 1차 압입된 PC패널 하부 기초부를 2차 굴착하는 상태의 측단면도를 도시한 것이다. And after the primary press-fitting is completed (S5), the second excavation of the base of the PC panel lower side is performed (for example, about 1.5 m) (S6). Figure 17 shows a side cross-sectional view of a state in which the secondary excavation of the PC panel lower base part pressed in first according to an embodiment of the present invention.
그리고 PC코너블록(20), PC패널블록(30), PC기준블록(10)을 순차적으로 2차 압입하게 된다(S7). 시공 기초심도에 따라 이러한 과정은 더 반복될 수 있다. 도 18은 본 발명의 실시예에 따라 PC패널을 2차 압입하는 상태의 측단면도를 도시한 것이다.Then, the second press-fitting of the PC corner block 20, the PC panel block 30, and the PC reference block 10 is sequentially performed (S7). Depending on the depth of construction foundation, this process may be repeated more. 18 is a side cross-sectional view showing a state in which the PC panel is secondarily press-fitted according to an embodiment of the present invention.
이러한 PC코너블록(20), PC패널블록(30), PC기준블록(10)을 순차적으로 2차 압입하면서, 그 상단부에는 흙막이용 임시가설패널(40)이 설치되게 된다(S8). 도 19는 본 발명의 실시예에 따라 PC코너블록(20)과 PC기준블록(10)과 PC패널블록(30)을 2차 압입하고, 그 상단에 흙막이용 임시가설패널(40)을 설치한 상태의 측단면도를 도시한 것이다. While the PC corner block 20, the PC panel block 30, and the PC reference block 10 are press-fitted sequentially, a temporary temporary panel 40 for retaining is installed at the upper end thereof (S8). 19 is a second press-fitting of the PC corner block 20, the PC reference block 10, and the PC panel block 30 according to an embodiment of the present invention, and a temporary temporary panel 40 for retaining is installed on the top. A side cross-sectional view of the state is shown.
도 20 및 도 21은 본 발명의 실시예에 따른 본 발명의 실시예에 따라 순차적으로 2차 압입된 PC패널 상단부에 흙막이용 임시가설패널(40)을 설치한 상태의 측단면도와 사시도를 도시한 것이다. 도 22는 본 발명의 실시예에 따른 하부기초구조벽체가 시공된 사시도를 도시한 것이다. 20 and 21 are a side cross-sectional view and a perspective view of a state in which a temporary temporary panel 40 for retaining is installed on the upper end of the PC panel press-fitted sequentially according to an embodiment of the present invention. will be. 22 is a perspective view showing a lower foundation structure wall construction according to an embodiment of the present invention.
하부 기초구조벽체의 시공이 완료되면, 콘크리트를 타설하기 전에 그 내부로 철근 연결 후(S9), 콘크리트를 타설, 양생시킨 후(S10), 임시가설패널(40)과, H파일(2)을 철거하고(S11), 기초 상면을 되메우기하여 하부기초구조(100)를 시공하게 된다(S12). 도 23은 본 발명의 실시예에 따른 하부기초벽체 내부에 보강재(110)와 철근을 설치하고, 기초콘크리트를 타설한 상태의 측단면도를 도시한 것이다. When the construction of the lower foundation structure wall is completed, after connecting the reinforcing bars into the inside before pouring the concrete (S9), pouring and curing the concrete (S10), the temporary panel 40 and the H file (2) It is demolished (S11), and the upper surface of the foundation is backfilled to construct the lower foundation structure 100 (S12). 23 is a side cross-sectional view of a state in which the reinforcement 110 and reinforcing bars are installed inside the lower foundation wall according to an embodiment of the present invention, and the foundation concrete is poured.
이때, 콘크리트를 타설하기 전에 본 발명의 실시예에서는 기초구조벽체 내부에 스트럿 타이 보강재(110)를 설치하고, 철근을 조립한 후, 콘크리트를 타설하게 된다. At this time, in the embodiment of the present invention before pouring the concrete, the strut tie reinforcement 110 is installed inside the wall of the foundation structure, and after assembling the reinforcing bars, the concrete is poured.
이하에서는 본 발명의 실시예에 따른 스트럿 타이 보강재(110)의 구성, 기능에 대해 설명하도록 한다. Hereinafter, the configuration and function of the strut tie reinforcement 110 according to an embodiment of the present invention will be described.
본 발명의 실시예에서는, 스트럿 타이 보강재(110)를 적용하게 됨으로써, 하부기초구조(100)의 두께를 감소시키면서도 최대 내하력을 증대시킬 수 있게 된다. 스트럿 내 콘크리트 충전 효과 및 타이 강봉의 역할로 하부기초구조(100) 내 응력전달이 원활히 이루어져 하부기초구조(100)의 두께 감소에도 내하력을 개선할 수 있게 된다. In the embodiment of the present invention, by applying the strut tie reinforcement 110, it is possible to increase the maximum load carrying capacity while reducing the thickness of the lower foundation structure (100). Due to the concrete filling effect in the strut and the role of the tie steel rod, the stress transfer in the lower foundation structure 100 is smoothly performed, so that the load carrying capacity can be improved even when the thickness of the lower foundation structure 100 is reduced.
본 발명의 실시예에 따른 스트럿에 의해 압축부를 보강하고, 인장부에 강봉을 이용한 타이로 구성하여, 스트럿 내 콘크리트 충전효과 및 타이강동이 기둥으로부터 전달되는 상부 하중을 스트럿을 통해 더욱 효과적으로 전달하여 하부기초구조(100)의 두께 감소에도 내하력을 개선시킬 수 있게 된다. The compression part is reinforced by the strut according to the embodiment of the present invention, and the tension part is composed of a tie using a steel bar, so that the concrete filling effect in the strut and the upper load transmitted from the tie steel copper column are more effectively transmitted through the strut to the lower part It is possible to improve the load-bearing capacity even when the thickness of the base structure 100 is reduced.
전체적으로 본 발명의 실시예에 따른 스트러 타이 보강재(110)는, 스트럿 타이 부재를 갖는 기초부 유닛(50)과, 이러한 기초부 유닛(50)의 상단에 앵커 결합되는 강박스 유닛(90)을 포함하여 구성될 수 있다. As a whole, the strut tie reinforcement 110 according to the embodiment of the present invention includes a base unit 50 having a strut tie member, and a steel box unit 90 anchored to the upper end of the base unit 50 . may be included.
도 24는 본 발명의 실시예에 따른 하부기초벽체 내부에 스트럿 타이 보강재(110)의 기초부 유닛(50)을 설치한 상태의 사시도를 도시한 것이다. 24 is a perspective view showing a state in which the base unit 50 of the strut tie reinforcement 110 is installed inside the lower foundation wall according to an embodiment of the present invention.
또한 도 25는 본 발명의 실시예에 따른 하부기초벽체 내부에 스트럿 타이 보강재의 기초부 유닛의 사시도를 도시한 것이고, 도 26은 본 발명의 실시예에 따른 하부기초벽체 내부에 스트럿 타이 보강재의 기초부 유닛의 정면도를 도시한 것이다. In addition, Figure 25 is a perspective view of the base unit of the strut tie reinforcement inside the lower foundation wall according to an embodiment of the present invention, Figure 26 is the foundation of the strut tie reinforcement inside the lower foundation wall according to an embodiment of the present invention A front view of the sub-unit is shown.
먼저 기초부 유닛(50)은 스트럿 타이 부재와, 기초 앵커프레임(80)을 포함하여 구성된다. First, the base unit 50 is configured to include a strut tie member, and a base anchor frame (80).
본 발명의 실시예에 따른 기초부 유닛(50)은, 하부기초구조(100)의 본체부(101) 시공위치에 설치된다. 그리고 스트럿 타이부재는 복수의 종방향 스트럿(60)와 종방향 타이(67), 그리고 복수의 횡방향 스트럿(70)과 횡방향 타이(77)가 결합되어 구성된다. The base unit 50 according to the embodiment of the present invention is installed at the construction position of the main body 101 of the lower base structure 100 . And the strut tie member is composed of a plurality of longitudinal struts 60 and longitudinal ties 67, and a plurality of transverse struts 70 and transverse ties 77 are coupled.
도 27은 본 발명의 실시예에 따른 기초부 유닛(50)의 스트럿 타이부재의 평면도를 도시한 것이다. 그리고 도 28은 도 27의 A-A단면도를 도시한 것이고, 도 29는 도 27의 B-B단면도를 도시한 것이며, 도 30은 본 발명의 실시예에 따른 강박스 유닛의 사시도를 도시한 것이다. 27 is a plan view of a strut tie member of the base unit 50 according to an embodiment of the present invention. And Fig. 28 is a cross-sectional view taken along line A-A of Fig. 27, Fig. 29 is a cross-sectional view taken along line B-B of Fig. 27, and Fig. 30 is a perspective view of a steel box unit according to an embodiment of the present invention.
이러한 종방향 스트럿(60)과 횡방향 스트럿(70)은 서로 수직방향으로 연결되며, 시공된 하부기초구조(100)의 본체부(101)와 기둥연결부(102)의 사이즈에 따라 그 개수, 크기가 결정되게 된다. These longitudinal struts 60 and transverse struts 70 are connected in a vertical direction to each other, and the number and size of the body portion 101 and the column connection portion 102 of the constructed lower foundation structure 100 are dependent on the size. will be decided
종방향 스트럿(60)은 본 발명의 실시예에서는 도 27 내지 도 29에 도시된 바와 같이, 2개의 종방향 스트럿(60)이 서로 특정간격 이격되어 배치될 수 있음을 알 수 있다. 그리고 종방향 스트럿(60) 각각은 한 쌍의 종방향 스트럿부(61)와 이러한 한 쌍이 종방향 스트럿부(61)의 각 상단측을 연결하는 연결부재(69)를 포함하여 구성된다. As shown in FIGS. 27 to 29 in the embodiment of the present invention, the longitudinal strut 60 can be seen that the two longitudinal struts 60 are spaced apart from each other at a specific distance. And each of the longitudinal struts 60 is configured to include a pair of longitudinal strut portions 61 and a pair of connecting members 69 for connecting the respective upper ends of the longitudinal strut portions 61 .
그리고 종방향 타이(67)는 한 쌍의 종방향 스트럿부(61)의 하단측을 긴장 연결하도록 구성된다. And the longitudinal tie 67 is configured to tensionly connect the lower ends of the pair of longitudinal struts 61 .
그리고 횡방향 스트럿(70)은 종방향 스트럿(60)의 수직방향으로 연결되며 본 발명의 실시예에서는 도 27 내지 도 29에 도시된 바와 같이, 5개의 횡방향 스트럿(70)이 서로 특정간격 이격되어 배치될 수 있음을 알 수 있다. 횡방향 스트럿(70) 각각은 한 쌍의 횡방향 스트럿부(71)와 이러한 한 쌍이 횡방향 스트럿부(71)의 각 상단측을 연결하는 연결부재(79)를 갖고 있다. 또한 횡방향 타이(77)는 한 쌍의 횡방향 스트럿부(71)의 하단측을 긴장 연결하게 된다. And the transverse strut 70 is connected in the vertical direction of the longitudinal strut 60, and in the embodiment of the present invention, as shown in FIGS. It can be seen that it can be arranged. Each of the lateral struts 70 has a pair of lateral strut portions 71 and a connecting member 79 for connecting the pair of upper ends of the pair of lateral strut portions 71 . In addition, the transverse tie 77 is to tensionly connect the lower end of the pair of transverse struts 71 .
또한, 도 28 및 도 29 등에 도시된 바와 같이, 종방향 스트럿부(61)와 횡방향스트럿부(71) 각각의 형태는 평면방향이 수직으로 위치되며 판형태를 가지고 있다. In addition, as shown in FIGS. 28 and 29, the longitudinal strut portion 61 and the transverse strut portion 71 have a plate shape in which the plane direction is vertically positioned.
그리고, 스트럿부(61, 71)의 테두리부는 평면방향인 상단면(62,72), 그리고 상단면보다 긴 평면방향의 하단면(65,75)을 가지며, 연결부재(69,79)와 연결되는 수직방향의 내측면과, 이러한 내측면보다 긴 수직방향의 외측면(64,74)을 가지고 있다. 그리고 상단면(62,72)과 외측면을 연결하는 외측경사면(63,73), 및 내측면과 하단면(65,75)을 연결하는 내측경사면(66,76)으로 이루어짐을 알 수 있다.And, the rim portion of the strut portion (61, 71) has upper end surfaces (62, 72) in the planar direction, and lower end surfaces (65, 75) in the planar direction longer than the upper surface, and is connected to the connecting members (69, 79). It has a vertical inner surface and a vertical outer surface 64 and 74 longer than this inner surface. And it can be seen that it is composed of outer inclined surfaces 63 and 73 connecting the upper surfaces 62 and 72 and the outer surfaces, and inner inclined surfaces 66 and 76 connecting the inner surfaces and the lower surfaces 65 and 75 .
또한, 외측면(64,74) 각각에는 플랜지(68,78)가 설치되며 이러한 플랜지(68,78)를 통해 타이(67,77)를 연결시키게 된다. In addition, flanges 68 and 78 are installed on the outer surfaces 64 and 74, respectively, and the ties 67 and 77 are connected through these flanges 68 and 78.
또한 본 발명의 기초부 유닛(50)은 한 쌍의 종방향 스트럿(60) 사이 공간 하단 내부에 설치되는 기초 앵커프레임(80)을 포함하며, 이러한 기초 앵커프레임(80) 내부에 수직방향으로 배치된 복수의 앵커볼트(81)가 앵커볼트연결부(82)를 통해 설치되게 된다. In addition, the base unit 50 of the present invention includes a base anchor frame 80 installed inside the lower end of the space between the pair of longitudinal struts 60, and is disposed in the vertical direction inside the base anchor frame 80 A plurality of anchor bolts 81 are installed through the anchor bolt connection portion (82).
본 발명의 실시예에 따른 강박스 유닛(90)은, 하부기초구조(100)의 기둥연결부(102) 시공위치에 설치되며, 도 22에 도시된 바와 같이, 상부와 하부가 개방된 강박스(91)와, 이러한 강박스(91) 내부에 설치되는 앵커 프레임(92), 그리고 앵커프레임(92)에 결합되며 수직으로 배치되는 복수의 앵커볼트 삽입부재(93)를 포함하여 구성됨을 알 수 있다. The steel box unit 90 according to the embodiment of the present invention is installed at the construction position of the column connection part 102 of the lower basic structure 100, and as shown in FIG. 22, the steel box ( 91), the anchor frame 92 installed inside the steel box 91, and a plurality of anchor bolt insertion members 93 coupled to the anchor frame 92 and arranged vertically. .
도 31은 본 발명의 실시예에 따른 기초부 유닛(50)과 강박스 유닛(90)의 분해 사시도를 도시한 것이다. 도 32는 본 발명의 실시예에 따른 기초구조벽체 내에 설치된 스트럿 타이 보강재의 사시도를 도시한 것이다. 그리고 도 33은 본 발명의 실시예에 따른 스트럿 타이 보강재(110)의 평면도를 도시한 것이다. 또한 도 34는 도 33의 A-A 단면도, 도 35는 도 33의 B-B 단면도를 도시한 것이다. 31 is an exploded perspective view of the base unit 50 and the steel box unit 90 according to an embodiment of the present invention. 32 is a perspective view of the strut tie reinforcement installed in the foundation structure wall according to an embodiment of the present invention. And Figure 33 shows a plan view of the strut tie reinforcement 110 according to the embodiment of the present invention. Also, FIG. 34 is a cross-sectional view taken along line A-A of FIG. 33 , and FIG. 35 is a cross-sectional view taken along line B-B of FIG. 33 .
본 발명의 실시예에 따른 기초부 유닛(50)과 상기 강박스 유닛(50)의 연결은, 기초부 유닛(50)을 기초구조벽체 내부공간에 설치한 후, 강박스 유닛(90)의 앵커볼트 삽입부재(93) 각각에 기초부 유닛(50)의 앵커볼트(81)를 삽입하여 강박스 유닛(90)을 연결, 체결시키게 된다. The connection between the base unit 50 and the steel box unit 50 according to an embodiment of the present invention is performed after the base unit 50 is installed in the inner space of the base structure wall, and then the anchor of the steel box unit 90 is performed. By inserting the anchor bolt 81 of the base unit 50 into each of the bolt insertion members 93, the steel box unit 90 is connected and fastened.
그리고 기초부 유닛(50) 측에 콘크리트를 타설하여 본체부(101)를 제작하고, 강박스 유닛(90) 내부로 콘크리트를 타설하여 기둥연결부(102)를 제작하게 된다. Then, the body part 101 is manufactured by pouring concrete on the side of the base unit 50 , and the column connection part 102 is manufactured by pouring concrete into the steel box unit 90 .
도 36은 본 발명의 실시예에 따라 임시가설패널(40)과 H파일(2)을 제거하는 상태의 측단면도를 도시한 것이다. 그리고 도 37 및 도 38은 본 발명의 실시예에 따라 시공된 하부기초구조(100)의 측단면도와 사시도를 도시한 것이다. 36 is a side cross-sectional view of a state in which the temporary panel 40 and the H-pillar 2 are removed according to an embodiment of the present invention. And FIGS. 37 and 38 show a side cross-sectional view and a perspective view of the lower basic structure 100 constructed according to an embodiment of the present invention.

Claims (11)

  1. 지반천공 후 복수의 파일을 삽입 후, 상기 파일에 PC패널을 거치하여 PC벽체를 시공하는 단계; After inserting a plurality of files after drilling the ground, installing a PC panel on the piles to construct a PC wall;
    기초부 지반 굴착 후, 상기 PC패널을 압입하여 하부 기초구조벽체를 제작하는 단계; After excavating the ground of the foundation, press-fitting the PC panel to manufacture a lower foundation structure wall;
    PC패널 상단에 흙막이용 임시가설패널을 설치하는 단계; Installing a temporary temporary panel for retaining on the top of the PC panel;
    기초구조벽체 내부에 철근 배근 후, 콘크리트를 타설하여 하부기초구조를 시공하는 단계; 및After reinforcing reinforcement inside the wall of the foundation structure, pouring concrete to construct the lower foundation structure; and
    임시가설패널과 파일을 제거하는 단계;를 포함하는 것을 특징으로 하는, 거푸집 일체화 PC 패널을 이용한 하부기초 시공방법.Removing the temporary temporary panel and the file; lower foundation construction method using a formwork-integrated PC panel, characterized in that it comprises a.
  2. 제 1항에 있어서, The method of claim 1,
    상기 파일은 H파일인 것을 특징으로 하는 거푸집 일체화 PC 패널을 이용한 하부기초 시공방법.The file is a lower foundation construction method using an integrated formwork PC panel, characterized in that it is an H file.
  3. 제 2항에 있어서, 3. The method of claim 2,
    상기 PC패널은 PC기준블록, PC코너블록 및 PC패널블록을 포함하고, The PC panel includes a PC reference block, a PC corner block and a PC panel block,
    상기 PC패널블록은 PC기준블록과 PC코너블록 사이, 및 PC기준블록과 PC기준블록 사이에 조립되어 결합되는 것을 특징으로 하는 거푸집 일체화 PC 패널을 이용한 하부기초 시공방법.The PC panel block is a lower foundation construction method using a formwork-integrated PC panel, characterized in that it is assembled between the PC reference block and the PC corner block, and between the PC reference block and the PC reference block.
  4. 제 3항에 있어서, 4. The method of claim 3,
    상기 PC기준블록은 측면부 일측에 길이방향을 따라 H파일의 플랜지 양단이 삽입되는 파일삽입단과, 양측단면 각각에 구비되는 패널 삽입단을 포함하고,The PC reference block includes a pile insertion end into which both ends of the flange of the H file are inserted along the longitudinal direction on one side of the side part, and a panel insertion end provided on each of both side end surfaces,
    상기 PC코너블록은 ㄱ자 단면을 갖고, 외측면에 형성되는 파일삽입단과, 내측면 각각에 형성되는 패널삽입단을 포함하며,The PC corner block has a L-shaped cross section, and includes a pile insertion end formed on an outer surface, and a panel insertion end formed on each inner surface,
    상기 PC패널블록은 판 형태로, 양측단면에 길이방향으로 돌출단이 형성되고, The PC panel block is in the form of a plate, and protruding ends are formed on both end surfaces in the longitudinal direction,
    상기 PC기준블록의 파일삽입단으로 H파일이 결합되며, 상기 PC코너블록의 파일삽입단으로 H파일이 결합되고, 상기 PC기준블록의 패널삽입단과 또 다른 PC기준블록의 패널삽입단 사이에 상기 PC패널블록이 체결되고, 상기 PC기준블록의 패널삽입단과 상기 PC코너블록의 패널삽입단 사이에 상기 PC패널블록이 체결되는 것을 특징으로 하는 거푸집 일체화 PC 패널을 이용한 하부기초 시공방법.The H file is coupled to the file insertion end of the PC reference block, the H file is coupled to the file insertion end of the PC corner block, and between the panel insertion end of the PC reference block and the panel insertion end of another PC reference block. A PC panel block is fastened, and the PC panel block is fastened between the panel insertion end of the PC reference block and the panel insertion end of the PC corner block.
  5. 제 4항에 있어서, 5. The method of claim 4,
    하부 기초구조벽체를 제작하는 단계는, The steps of manufacturing the lower foundation structure wall,
    H파일 관입 후, 상기 H파일 각각의 상단으로 상기 PC코너블록과 상기 PC기준블록을 거치하는 제1단계; After penetrating the H file, a first step of mounting the PC corner block and the PC reference block to the top of each of the H files;
    기초부를 굴착하는 제2단계; 및a second step of excavating the foundation; and
    상기 PC코너블록과 상기 PC기준블록을 순차적으로 압입하고, 상기 PC코너블록과 상기 PC기준블록 사이, 및 상기 PC기준블록과 근접한 다른 PC기준블록 사이에 상기 PC패널블록을 삽입하여 조립하는 제3단계;을 포함하는 것을 특징으로 하는 거푸집 일체화 PC 패널을 이용한 하부기초 시공방법.A third assembling by sequentially press-fitting the PC corner block and the PC reference block, and inserting the PC panel block between the PC corner block and the PC reference block and between the PC reference block and another PC reference block adjacent to the PC reference block A lower foundation construction method using a formwork-integrated PC panel, comprising: a.
  6. 제 5항에 있어서, 6. The method of claim 5,
    하부 지반을 굴착하고, 상기 PC코너블록과 상기 PC패널블곡과 상기 PC기준블록을 순차적으로 압입하는 단계를 기초입도에 따라 반복하는 제4단계를 더 포함하는 것을 특징으로 하는 거푸집 일체화 PC 패널을 이용한 하부기초 시공방법.Using a form-integrated PC panel, characterized in that it further comprises a fourth step of excavating the lower ground and repeating the steps of sequentially pressing the PC corner block, the PC panel block, and the PC reference block according to the basic grain size How to construct the lower foundation.
  7. 제 1항에 있어서, The method of claim 1,
    상기 하부기초구조를 시공하는 단계에서, In the step of constructing the lower foundation structure,
    기초구조벽체 내부에 스트럿 타이 보강재를 설치하고, 철근을 조립한 후, 콘크리트를 타설하여 하부기초구조를 시공하는 것을 특징으로 하는 거푸집 일체화 PC 패널을 이용한 하부기초 시공방법.A lower foundation construction method using a formwork-integrated PC panel, characterized in that the strut tie reinforcement is installed inside the wall of the foundation structure, reinforcing bars are assembled, and then concrete is poured to construct the lower foundation structure.
  8. 제 7항에 있어서, 8. The method of claim 7,
    상기 스트럿 타이 보강재는, The strut tie reinforcement is
    스트럿 타이 부재를 갖는 기초부 유닛; 및 상기 기초부 유닛의 상단에 앵커 결합되는 강박스 유닛;을 포함하며, a foundation unit having a strut tie member; and a steel box unit anchored to the upper end of the base unit.
    상기 기초부 유닛은, 하부기초구조의 본체부 시공위치에 설치되며, 한 쌍의 종방향 스트럿부와 상기 한 쌍이 종방향 스트럿부의 각 상단측을 연결하는 연결부재를 갖는 적어도 2개의 종방향 스트럿과, 상기 한 쌍의 종방향 스트럿부의 하단측을 긴장 연결하는 종방향 타이와, 한 쌍의 횡방향 스트럿부와 상기 한 쌍이 횡방향 스트럿부의 각 상단측을 연결하는 연결부재를 갖고 상기 종방향 스트럿과 교차 연결되는 적어도 2개의 횡방향 스트럿과, 상기 한 쌍의 횡방향 스트럿부의 하단측을 긴장 연결하는 횡방향 타이를 포함하는 것을 특징으로 하는 거푸집 일체화 PC 패널을 이용한 하부기초 시공방법.The base unit includes at least two longitudinal struts installed at the construction location of the main body of the lower foundation structure and having a pair of longitudinal struts and a connecting member for connecting the upper ends of the pair of longitudinal struts; , a longitudinal tie for tensionally connecting the lower ends of the pair of longitudinal struts, and a connecting member for connecting a pair of transverse struts and respective upper ends of the pair of transverse struts, the longitudinal strut and A method of constructing a lower foundation using a formwork-integrated PC panel, comprising: at least two cross-connected transverse struts;
  9. 제 8항에 있어서, 9. The method of claim 8,
    상기 종방향 스트럿부와 상기 횡방향스트럿부 각각은, Each of the longitudinal strut portion and the transverse strut portion,
    평면방향이 수직으로 위치되며 판형태를 가지며, 테두리부는 평면방향인 상단면, 상기 상단면보다 긴 평면방향의 하단면, 연결부재와 연결되는 수직방향의 내측면과, 상기 내측면보다 긴 수직방향의 외측면, 상기 상단면과 상기 외측면을 연결하는 외측경사면, 상기 내측면과 하단면을 연결하는 내측경사면으로 이루어지는 것을 특징으로 하는 거푸집 일체화 PC 패널을 이용한 하부기초 시공방법.The plane direction is vertically positioned and has a plate shape, and the edge portion has an upper surface in a planar direction, a lower surface in a planar direction longer than the upper surface, an inner surface in a vertical direction connected to the connecting member, and a vertical direction longer than the inner surface. A lower foundation construction method using an integrated formwork PC panel, characterized in that it consists of an outer surface, an outer inclined surface connecting the upper surface and the outer surface, and an inner inclined surface connecting the inner surface and the lower surface.
  10. 제 9항에 있어서, 10. The method of claim 9,
    상기 기초부 유닛의 하단 내부에 설치되는 기초 앵커프레임과, 상기 기초 앵커 프레임 내부에 수직방향으로 배치된 복수의 앵커볼트를 포함하고, A foundation anchor frame installed inside the lower end of the base unit, and a plurality of anchor bolts disposed in the vertical direction inside the foundation anchor frame,
    상기 강박스 유닛은, 하부기초구조의 기둥연결부 시공위치에 설치되며, The steel box unit is installed at the construction position of the column connection part of the lower base structure,
    상부와 하부가 개방된 강박스와, 상기 강박스 내부에 설치되는 앵커 프레임과, 상기 앵커프레임에 결합되며 수직으로 배치되는 복수의 앵커볼트 삽입부재를 포함하는 것을 특징으로 하는 거푸집 일체화 PC 패널을 이용한 하부기초 시공방법.Using a form-integrated PC panel comprising: a steel box with open upper and lower portions; an anchor frame installed inside the steel box; and a plurality of anchor bolt insertion members coupled to the anchor frame and arranged vertically. How to construct the lower foundation.
  11. 제 10항에 있어서, 11. The method of claim 10,
    상기 기초부 유닛과 상기 강박스 유닛의 연결은, The connection between the base unit and the steel box unit is
    상기 기초부 유닛을 기초구조벽체 내부공간에 설치한 후, 상기 강박스 유닛의 앵커볼트 삽입부재 각각에 상기 기초부 유닛의 앵커 볼트를 삽입하여 강박스 유닛을 연결, 체결시키는 것을 특징으로 하는 거푸집 일체화 PC 패널을 이용한 하부기초 시공방법.Formwork integration, characterized in that after the foundation unit is installed in the inner space of the foundation structure wall, the anchor bolt of the foundation unit is inserted into each anchor bolt insertion member of the steel box unit to connect and fasten the steel box unit A method of constructing a lower foundation using a PC panel.
PCT/KR2021/013290 2020-10-22 2021-09-29 Lower foundation construction method using mold-integrated pc panel, lower foundation structure using strut-and-tie stiffeners, and construction method therefor WO2022085973A1 (en)

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KR10-2020-0137674 2020-10-22
KR1020200137674A KR102482691B1 (en) 2020-10-22 2020-10-22 Foundation structures using strut-tie reinforcement and its construction method
KR10-2020-0137672 2020-10-22
KR1020200137672A KR102482690B1 (en) 2020-10-22 2020-10-22 Bridge foundation construction method using formwork integrated PC panels

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Publication number Priority date Publication date Assignee Title
JPH1136296A (en) * 1997-07-23 1999-02-09 Taisei Corp Pc hollow pile and construction method for underground structure
JP2000129670A (en) * 1998-10-21 2000-05-09 Yasuhiro Fujita Root-swelling disaster-preventive pile with c-steel, multistage joint column, and guard plate structure
KR100743474B1 (en) * 2007-05-21 2007-07-30 (주)한터인종합건축사사무소 Earth of building land-side protection wall structure
KR101722977B1 (en) * 2016-04-29 2017-04-04 최두호 A reinforcement of foundation
KR101759397B1 (en) * 2015-10-27 2017-07-19 박광호 Reinforcement of foundation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1136296A (en) * 1997-07-23 1999-02-09 Taisei Corp Pc hollow pile and construction method for underground structure
JP2000129670A (en) * 1998-10-21 2000-05-09 Yasuhiro Fujita Root-swelling disaster-preventive pile with c-steel, multistage joint column, and guard plate structure
KR100743474B1 (en) * 2007-05-21 2007-07-30 (주)한터인종합건축사사무소 Earth of building land-side protection wall structure
KR101759397B1 (en) * 2015-10-27 2017-07-19 박광호 Reinforcement of foundation
KR101722977B1 (en) * 2016-04-29 2017-04-04 최두호 A reinforcement of foundation

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