KR20180036106A - The Precast Retaining wall of large size applied to high-tension anchor Bar - Google Patents

The Precast Retaining wall of large size applied to high-tension anchor Bar Download PDF

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KR20180036106A
KR20180036106A KR1020160126263A KR20160126263A KR20180036106A KR 20180036106 A KR20180036106 A KR 20180036106A KR 1020160126263 A KR1020160126263 A KR 1020160126263A KR 20160126263 A KR20160126263 A KR 20160126263A KR 20180036106 A KR20180036106 A KR 20180036106A
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South Korea
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retaining wall
wall
base
retaining
foundation
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KR1020160126263A
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Korean (ko)
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김우기
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주식회사 강탄산업
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Publication of KR20180036106A publication Critical patent/KR20180036106A/en

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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/02Retaining or protecting walls
    • E02D29/0225Retaining or protecting walls comprising retention means in the backfill
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/02Foundation pits
    • E02D17/04Bordering surfacing or stiffening the sides of foundation pits
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/06Foundation trenches ditches or narrow shafts
    • E02D17/08Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00Miscellaneous
    • E02D2600/20Miscellaneous comprising details of connection between elements

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

Abstract

The present invention relates to a precast retaining wall, which comprises: a base formed at the length of 1-3 m to come in contact with the floor of the site to support; a wall body vertically coupled to one end of the base and formed at the length of 5-12 m; and a steel pipe of which one end is coupled to a surface facing a soil surface in the wall body and the other end is coupled to the ground of a rear surface of the retaining wall to support the wall body. Therefore, a base of the retaining wall is formed at the length of 1-3 m, thereby being capable of being carried through a cargo truck after being manufactured in a factory. Moreover, reduction of a resistance force caused by shortening the base can be solved by connecting the steel pipe. Thus, a process of installing the retaining wall can be more smoothly and simply performed.

Description

고장력 앵커용 강봉을 갖는 대형 프리캐스트 옹벽{The Precast Retaining wall of large size applied to high-tension anchor Bar}BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a large precast retaining wall having a high-strength anchor rod,

본 발명은 도로, 철도, 택지 등의 조성시에 부지를 넓게 활용한 목적으로 사면의 흙막이용으로 사용되는 높이 5m 이상의 대형옹벽에 대한 것으로서, 공장에서 제작한 L형 프리캐스트 옹벽의 벽체에 고장력 강봉을 결합하여 배면 지반 깊숙이 근입시켜 토압을 저항하도록 함으로써 기초저판을 운반 가능한 크키로 축소할 수 있으며, 대형옹벽의 기초저판이 커서 트럭으로 운반할 수 없는 문제점을 개선한 기초벽체 일체 제작형 옹벽과 그 시공법에 관한 것이다.The present invention relates to a large retaining wall having a height of 5 m or more, which is used for retaining slopes for the purpose of widely utilizing sites in the construction of roads, railways, residential land, etc., The bottom wall of the base wall can be reduced to a size that can be transported, and the base bottom wall of the large retaining wall can be prevented from being transported by the truck. And the construction method.

기존의 옹벽 구조물은 주로 현장에서 철근조립과 거푸집 조립, 콘크리트 타설로 시공되었으나, 최근 높은 품질의 옹벽이 요구되고 있고, 운반 장비와 도로가 발달하여 공장 제작된 프리캐스트 옹벽이 제작되고 있으나 작은 블록을 조립하는 블록식 보강토 Existing retaining wall constructions were mainly constructed in the field by reinforcing steel assemblies, form assemblies and concrete pavements. Recently, high quality retaining walls have been required. Precast retaining walls have been produced by the factory, Block-type reinforcing soil to be assembled

옹벽이나 기초와 벽체를 분리하여 제작하고 현장에서 강관이나 부벽(Buftress)을 덧대 조립하는 옹벽(특허 제10-0603946, 2006. 7. 14)이 대부분이다.Most of these are retaining walls that are made by separating retaining walls or foundations and walls, and assembling steel pipes or buftress on site (Patent No. 10-0603946, July 14, 2006).

본인의 기존 특허는 마이크로파일을 기초 저판에 설치하여 활동, 전도에 도움을 줌으로써 기초를 축소시킨 옹벽을 개발하여 운반이 가능 하도록 한 기초벽체 일체 제작형 옹벽을 상용화하였으나 (특허 제 10-1125725호) 이러한 마이크로파일의 항타 시, 암반지역이나 민가 근처에서는 소음, 진동으로 파일설치가 어려운 문제점이 있었다.The existing patents of the present invention have commercialized a retaining wall with a built-in base wall which can be transported by developing a retaining wall with a reduced foundation by providing a micro file on the base plate to assist in activities and evangelism (Patent No. 10-1125725) In the case of such a micro file, there is a problem that it is difficult to install the file due to noise and vibration in a rocky area or near a private house.

또한, 마이크로 파일 옹벽은 비교적 높이가 낮은 옹벽에 적용되는 것이었으나, 본 발명 옹벽은 높이 5m에서 12m까지의 높은 대형옹벽에 적용이 가능하다. 이처럼 응력 즉 모멘트나 전단력이 집중되는 옹벽 벽체와 기초를 공장에서 일체로 제작하여 운반을 용이하게 하고 고장력의 강봉을 지반 깊숙이 근입시켜 그라우팅하여 지반에 단단하게 앵커링하고 그 지반에 앵커링된 고장력 강봉을 옹벽의 배면 벽체에 고정하여 높은 구조적 신뢰성을 같는 대형옹벽을 얻을 수 있다.In addition, although the microfiber retaining wall is applied to a relatively low retaining wall, the retaining wall of the present invention is applicable to a large retaining wall having a height of 5 m to 12 m. In this way, the wall and foundation of the retaining wall where the stresses such as moment and shear force are concentrated are integrally manufactured at the factory to facilitate transportation. The high-strength steel rods are inserted deep into the ground and grouted to securely anchor to the ground. It is possible to obtain a large retaining wall having high structural reliability.

본 발명은 전술한 바와 같은 문제점을 해결하기 위한 것으로서, 높이가 5m이상의 높은 공장제작 대형 옹벽에 대해 옹벽 벽체와 기초를 일체로 시공이음도 없이 제작하고 옹벽을 눕혀서 운반할 때, 기초가 3m보다 크면 고속도로에서 통과 높이에 제한 받으므로 기초폭을 운반 가능한 높이로 3배 이하로 공장제작하고, 옹벽의 안전성중 전도, 활동에 대해 옹벽배면에 설치된 고장력 강봉을 배면지반에 근입, 정착시켜 전도, 활동에 도움을 줌으로서 대형옹벽을 기초벽체 분리 제작하여 조립하지 않고 일체로 제작하여 구조적 취약점을 없애면서 full precast화 한 옹벽을 제공하는 것이다.The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a reticulated wall having a height of 5 m or more, Because it is limited to the passage height on the highway, the factory is manufactured to less than 3 times the height of the foundation width to be able to carry it, and the high tension steel bar installed on the back wall of the retaining wall is settled in the back ground for the conduction and activity during the safety of the retaining wall. It is to provide a retaining wall with a full precast structure by eliminating the structural weakness by making the large retaining wall separated and assembled without assembly.

본 발명은 벽체와 기초를 일체로 제작하여, 타사의 기초벽체를 분리하여 제작한 후 강관이나 콘크리트 부벽으로 연결하는 분절식 옹벽의 단점, 즉 연결부가 위약하고 배면의 강관이나 부벽이 옹벽의 생명인 뒷채움 다짐을 방해하는 문제점을 개선하고 기초와 벽체의 시공이음부도 없애 구조적 특성을 우수하게 한다.Disclosure of the Invention Problems to be Solved by the Invention The present invention is based on the disadvantages of the split retaining wall which is made by integrally forming the wall and the foundation and separating the foundation wall of the other company and connecting it to the steel pipe or the concrete subwall, It improves the problems that obstruct the backfill compaction and eliminates the construction of the foundations and the wall, which makes the structural characteristics excellent.

또한, 당사의 특허인 마이크로 파일을 이용한 직접기초옹벽의 시공방법 (특허 제0382053호)과 앞굽을 현장 연결하는 프리캐스트 콘크리트 옹벽(특허 제10-1125725호)에 비해 고장력강봉을 지반에 근입, 정착시켜 토압을 저항하게 함으로써 기초 폭을 줄여 기초벽체 일체형 PC 옹벽의 대형화를 이룰 수 있게 하였다.In addition, compared to the construction method of the direct foundation retaining wall (patent No. 0382053) and the precast concrete retaining wall (the patent No. 10-1125725) connecting the front sheath with the patented micro pile, the high tensile steel rod is inserted into the ground, Thereby making it possible to increase the size of the PC retaining wall integrated with the foundation wall by reducing the foundation width.

즉, 5m 이상 대형옹벽의 기초벽체를 공장에서 제작하고 미리 현장에서 모래나 석분등 세골재로 바닥 수평을 잡아 평탄하게한 지반에 종방향으로 옹벽을 설치한 후, 미리 마련되어 지반에 근입, 정착된 고장력 강봉을 옹벽 벽체의 고정장치 연결하여 옹벽의 배면에 작용하는 토압을 배면 지반에 분포하도록 하여 옹벽의 기초폭을 크게 줄여 대형 옹벽도 운반이 가능하도록 하여 높이 5m 이상의 대형옹벽을 공장 제작하여 설치가 가능하도록 한 것이다.That is, a foundation wall of a large retaining wall of 5 m or more is manufactured in a factory, and a retaining wall is provided in the longitudinal direction on the ground in which the floor is horizontally leveled with fine aggregate such as sand or stone in the site in advance, By connecting the steel rods to the fixing device of the retaining wall, the earth pressure acting on the back surface of the retaining wall is distributed on the backing ground, so that the base wall of the retaining wall can be greatly reduced to enable the large retaining wall to be transported. .

이러한, 고장력 강봉을 이용한 기초벽체 일체형 PC 옹벽은 토압저항을 고장력 강봉과 옹벽구체 자중, 뒷굽기초 위에 얹혀진 토사자중이 함께 토압을 저항하게 하는 구조이다.This type of PC retaining wall integrated with a base wall by using a high strength steel bar is a structure in which the earth pressure resistance resists the earth pressure together with the high tensile strength bar, the retaining wall concrete weight, and the soil material placed on the foundation of the heel.

본 발명은 공장제작의 기초벽체 일체형 프리캐스트 콘크리트 옹벽 (이하 PC옹벽)의 배면벽체에 고장력 강봉을 강결하여 배면 지반에 토압을 일정부분 저항하게 하는 구조로서, 이러한 고장력 강봉의 토압저항 효과로 인해 일체형 PC옹벽의 기초폭을 크게 줄일 수 있다.The present invention relates to a structure for reinforcing a high-strength steel bar on the back wall of a pre-cast concrete retaining wall (hereinafter, referred to as PC retaining wall) integrated with a base wall of a factory to produce a certain portion of the earth pressure on the back ground. The base width of the PC retaining wall can be greatly reduced.

기초벽체 일체형 PC 옹벽은 높이 제한 때문에 L자호 눕혀서 운반하는 데, 따라서 기초폭이 운반높이가 된다.Because the height of the PC retaining wall is limited by the height of the base wall,

즉, 운반 높이는 기초폭이 되고 25톤 대형트럭은 지면에서 적재함까지의 높이가 1.35m 이므로 이 기초폭이 3m가 넘을 경우 통과 높이 제한으로 운반이 불가능하게 되는데, 그래서 대형일체형 PC 옹벽의 프리캐스트화가 불가능한 이유였다.In other words, the transport height becomes the foundation width, and the height of the 25-ton large truck is 1.35m from the ground to the loading platform. Therefore, when the foundation width is over 3m, it can not be transported due to the limit of the passage height. It was impossible reason.

본, 발명은 이러한 문제를 개선한 것으로서, 기초폭을 3m 이하로 설계하면서 PC옹벽 높이가 5m ~ 12m 까지 기초벽체 일체형으로 가능하도록 한것으로서 고장력 강봉과 PC 옹벽 구체 및 뒷굽기초에 얹혀진 토사 중량이 함께 토압을 저항하게 하여 옹벽의 외적 안정성인 전도, 활동의 구조적 안정성을 확보할 수 있게 된다.The present invention has been made to solve these problems, and it is designed so that the PC retaining wall height is 5m ~ 12m, while the foundation width is designed to be 3m or less, so that the high tensile strength bar, the PC retaining wall, It is possible to secure the structural stability of the conduction and activity, which is the external stability of the retaining wall, by resisting the earth pressure.

이처럼, 기초폭을 줄이는 것은 기초벽체 일체형 대형 PC옹벽의 운반을 가능하게 하고, 또 이것은 공장제작의 프리캐스트 공법이 불가능한 것을 가능하게 하는 큰 특징을 갖는다.As such, reducing the foundation width enables transport of a large-sized PC-retaining wall integrally with the foundation wall, and this has a great feature that makes it possible to make a precast construction method of a factory impossible.

도 1은 본 발명의 고장력 앵커용강봉이 설치된 프리캐스트 옹벽
도 2는 높이가 높아 큰 토압을 받는 경우의 2단 앵커용강봉이 설치된 PC옹벽
도 3은 본 발명의 L형 프리캐스트 옹벽 구조물과 고장력 앵커형강봉 연결부의 단면도
도 4는 앵커볼트의 상세도
도 5는 도 2의 평면도
도 6은 옹벽 벽체 보강 단면부와 연결부 정면도
도 7은 강봉을 연결하는 연결 커플러(Right-Left threaded coupler)의 단면도
도 8은 L형 프리캐스트 옹벽의 배면에 설치된 고장력 강봉을 배면 지반에 근입, 정착시켰을 때의 하중 및 저항능력 모식도
1 is a perspective view of a precast retaining wall having a high-
Fig. 2 is a view showing a PC retaining wall provided with a two-stage anchor steel rod in the case of receiving a large earth pressure,
Fig. 3 is a cross-sectional view of the L-type precast retaining wall structure of the present invention and the high-strength anchor-
4 is an enlarged view of an anchor bolt
Fig. 5 is a plan view of Fig. 2
6 is a cross-sectional view of a retaining wall wall reinforcing end face portion and a connecting portion front face view
7 is a cross-sectional view of a right-left threaded coupler connecting the steel rods
Fig. 8 is a schematic view showing load and resistance capability when a high tensile strength bar provided on the back surface of an L-type precast retaining wall is inserted into a back ground and fixed thereon.

이하 첨부된 도면을 참조하여 본 발명의 실시예를 상세하게 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 고장력 앵커용강봉이 설치된 프리캐스트 옹벽을 도시화 한 것이다.1 is a view showing a precast retaining wall provided with a high strength anchor steel bar.

먼저 L형 옹벽은 공장에서 제작하여 현장으로 운반한다.First, the L-type retaining wall is manufactured at the factory and transported to the site.

이러한 L형 프리캐스트옹벽(PC옹벽)은 제작시는 눕혀서 기초(2)가 위로가게, 벽체(1)는바닥으로 제작한다.The L-shaped precast retaining wall (PC retaining wall) is laid down so that the foundation 2 goes up, and the wall 1 is made of a floor.

PC옹벽에는 고장력 강봉(8)을 연결할 수 있도록 앵커볼트(11), 육각너트(12) 그리고 와셔플레이트(12)을 미리 매입하여 제작한다. The anchor bolts 11, the hexagonal nuts 12, and the washer plates 12 are prefabricated on the PC retaining wall so that the high strength steel bar 8 can be connected thereto.

또한 벽체 연결부는 요철부(凹,凸)를 형성시켜 PC옹벽 각 segment에 편토압이 작용하더라도 단차가 발생하지 않도록 한다.In addition, the wall joints form recesses and protrusions so that steps do not occur even if biased earth pressure acts on each segment of the PC retaining wall.

오목 및 볼록돌기(4) 중간에 1.5m 간격으로 장방향의 배수공(3)을 형성시킨다.A drain hole 3 in the longitudinal direction is formed at intervals of 1.5 m between the concave and convex projections 4.

도 2는 옹벽높이가 높아 토압이 클 경우, 고장력 앵커용강봉을 갖는 대형 프리캐스트 옹벽 구조물을 도시한 것으로 토압 증가로 인해 옹벽 1segment당 2개의 강봉체결 한 것을 나타낸 것이다.FIG. 2 shows a large precast retaining structure having a high-strength anchor steel rod when the retaining wall height is high and the earth pressure is large, and shows that two steel rods are fastened per segment of the retaining wall due to an increase in the earth pressure.

옹벽이 설치될 현장에서는 옹벽배면 지반을 크롤러 드릴 등을 이용하여 직경 10cm정도의 천공을 하고 강봉을 삽입시켜 시멘트 밀크로 그라우팅(10)하여 옹벽 배면 지반에정착시킨다. In the site where the retaining wall is to be installed, the backing wall of the retaining wall is perforated with a diameter of about 10 cm using a crawler drill or the like, and the steel rod is inserted and grouted (10) with cement milk to fix it on the backing wall of the retaining wall.

정착길이는 지반조건에 따라 다르나 4~10m 정도이다.The settlement length varies from 4 to 10 m depending on the ground conditions.

이후 공장에서 제작된 PC옹벽을 세워, 미리 준비된 바닥 콘크리트 위에 모래나 석분 등의 세골재로 수평을 맞춘 후 종방향으로 조립해 나간다.After that, the PC retaining wall made by the factory is built up, and then horizontally aligned with fine aggregate such as sand or stones on the prepared floor concrete, and assembled in the longitudinal direction.

세워진 PC옹벽은 나사산이 형성된 강봉과 아이너트(7)를 샤클(5)로 이어준다.The built-in PC retaining wall connects the threaded steel bar and the eye nut (7) to the shackle (5).

또한, 적당한 긴장력으로 강봉이 인장되도록 Right-Left 나사산이 마련된 커플러를 중간에 두어 설치 완료 후 고장력 강봉을 긴장하도록 한다.Also, put the right-left threaded coupler in the middle so that the steel rods are pulled with proper tension, and tighten the high-strength steel rods after completion of installation.

도 3은 L형 프리캐스트 옹벽구조물과 고장력 앵커형 강봉 연결부의 단면도를 도시한 것이다.3 is a cross-sectional view of an L-shaped precast retaining wall structure and a high-strength anchor-type steel rod connection portion.

공장에서 벽체(1)와 기초(2)가 일체로 형성되있는 대형(H=5m~12m) 프리캐스트 옹벽에 고장력 강봉을 고정시키기 위해 앵커볼트(11)를 미리 매입해 제작한다.Anchor bolts 11 are preliminarily manufactured in order to fix a high strength steel bar to a large casting (H = 5m to 12m) pre-cast retaining wall in which a wall 1 and a base 2 are integrally formed.

도 4는 매립된 앵커볼트(11)의 상세도를 도시화 한 것이다.4 shows a detailed view of the embedded anchor bolts 11. As shown in Fig.

매립된 앵커볼트에 체결되는 육각너트(12), 와셔플레이트(13), 아이너트(6)의 상세도를 나타낸 것이다.A hexagonal nut 12, a washer plate 13, and an eye nut 6 fastened to an embedded anchor bolt.

도 5는 도 2의 확대 단면도이다.5 is an enlarged sectional view of Fig.

매립된 앵커볼트에 체결된 아이너트(6)와 강봉에 연결된 아이너트(7)를 샤클(5)로 체결하여 정착한다..An eye nut (6) fastened to the buried anchor bolt and an eye nut (7) connected to the steel rod are fastened by shackle (5) and fixed.

도 6은 아이너트의 정면도 이다.6 is a front view of the eye nut.

도 7은 강봉을 연결하는 연결커플러(Right-Left threaded coupler, 9)의 단면도를 도시화 한 것이다.7 is a cross-sectional view of a right-left threaded coupler 9 connecting the steel rods.

도 8에서 (a)는 PC옹벽에 작용하는 토압을 나타낸 것이다.8 (a) shows the earth pressure acting on the PC retaining wall.

(b)에서 R1은 옹벽구체와 기초상면의 뒷채움 토사의 중량이 저항하는 값이며 μ는 마찰계수를 나타낸다.In (b), R1 is the resistance value of the weight of the retaining wall sphere and the backfill soil on the base upper surface, and μ denotes the friction coefficient.

(c)에서 R2는 옹벽배면지반에 정착된 고장력 강봉이 토압에 저항하는 값이다.(c), R2 is the value of the high tensile steel bar that is fixed to the back wall of the retaining wall to resist the earth pressure.

이러한 저항력 R1, R2의 합은 토압 P보다 크도록 설계된다.The sum of the resistances R1 and R2 is designed to be greater than the earth pressure P.

(

Figure pat00001
)(
Figure pat00001
)

1: PC옹벽 벽체 2: 기초 뒷굽
3: 배수공 4: 볼록돌기
5: 샤클 6, 7: 아이너트
8: 강봉 9: 연결커플러
10: 가압식 그라우트 11: 앵커볼트
12: 육각너트 13: 와셔플레이트
1: PC retaining wall 2: foundation heel
3: drainage hole 4: convex projection
5: Shackle 6, 7: Eye nut
8: Steel rod 9: Connecting coupler
10: Pressurized grout 11: Anchor bolt
12: hexagon nut 13: washer plate

Claims (3)

1m ~ 3m 길이로 형성되어 현장의 바닥에 접하여 지지하는 기초;
상기 기초의 일단에 수직하여 결합되고, 5m~12m 길이로 형성되는 벽체;
일단이 상기 벽체에서 토사면을 향하는 면에 결합되고, 타단이 옹벽배면 지반에 결합되어 상기 벽체를 지지하는 강관을 포함하여 구성되는 프리캐스트 옹벽.
A foundation formed to be 1m ~ 3m in length and supported by the bottom of the site;
A wall vertically coupled to one end of the foundation and formed to a length of 5 m to 12 m;
And a steel pipe, one end of which is coupled to a surface facing the slope surface in the wall, and the other end is connected to the back wall of the retaining wall to support the wall.
제1항에 있어서,
상기 강관은 앵커볼트에 의해 상기 벽체에 결합되고, 상기 벽체의 제작시 상기 앵커볼트가 매입되어 제작됨을 특징으로 하는 프리캐스트 옹벽.
The method according to claim 1,
Wherein the steel pipe is coupled to the wall by an anchor bolt, and the anchor bolt is embedded when the wall is manufactured.
제2항에 있어서,
상기 강관은 상기 앵커볼트에 순차적으로 체결되는 육각너트, 와셔플레이트, 아이너트에 샤클을 통해 상기 벽체와 연결되고, 옹벽배면 지반과 결합되는 타단은 그라우팅 되어 고정되며, 상기 강관에는 Right-Left 나사산이 형성된 커플러에 의해 긴장력이 제공됨을 특징으로 하는 프리캐스트 옹벽.
3. The method of claim 2,
The steel pipe is connected to the wall through a hexagonal nut, a washer plate, and an eyeliner, which are sequentially fastened to the anchor bolt, and the other end coupled to the back wall of the retaining wall is grouted and fixed. Lt; RTI ID = 0.0 > a < / RTI > formed coupler.
KR1020160126263A 2016-09-30 2016-09-30 The Precast Retaining wall of large size applied to high-tension anchor Bar KR20180036106A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102182223B1 (en) * 2019-08-01 2020-11-24 김기형 Connecting Apparatus and Its Method of Cutting the Ground Retaining Wall with Nail Angle and Nail Length Adjustment of Integral Type
KR20220006201A (en) 2020-07-08 2022-01-17 (주)동명기술공단종합건축사사무소 Precast prefabricated retaining wall structure and construction method Thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000265464A (en) * 1999-03-18 2000-09-26 Koji Kurihara Anchor for retaining wall construction
KR100917044B1 (en) * 2007-05-31 2009-09-10 (주)유니트엔지니어링 Concrete retaining wall construction method with dual wall jointed by anchor
KR101125725B1 (en) * 2011-12-23 2012-03-26 주식회사 강탄산업 Precast concrete retaining wall and construction method of the same
KR101494740B1 (en) * 2014-06-25 2015-02-24 주식회사 동명건설엔지니어링 Retaining wall using large block and construction method thereof
KR101501733B1 (en) * 2014-05-30 2015-03-18 대한이.이엔.씨(주) The eco-friendly precast l type retaining wall fixed with an anchor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000265464A (en) * 1999-03-18 2000-09-26 Koji Kurihara Anchor for retaining wall construction
KR100917044B1 (en) * 2007-05-31 2009-09-10 (주)유니트엔지니어링 Concrete retaining wall construction method with dual wall jointed by anchor
KR101125725B1 (en) * 2011-12-23 2012-03-26 주식회사 강탄산업 Precast concrete retaining wall and construction method of the same
KR101501733B1 (en) * 2014-05-30 2015-03-18 대한이.이엔.씨(주) The eco-friendly precast l type retaining wall fixed with an anchor
KR101494740B1 (en) * 2014-06-25 2015-02-24 주식회사 동명건설엔지니어링 Retaining wall using large block and construction method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102182223B1 (en) * 2019-08-01 2020-11-24 김기형 Connecting Apparatus and Its Method of Cutting the Ground Retaining Wall with Nail Angle and Nail Length Adjustment of Integral Type
KR20220006201A (en) 2020-07-08 2022-01-17 (주)동명기술공단종합건축사사무소 Precast prefabricated retaining wall structure and construction method Thereof

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