KR101029261B1 - Construction method for retaining wall using shotcrete - Google Patents

Construction method for retaining wall using shotcrete Download PDF

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Publication number
KR101029261B1
KR101029261B1 KR1020100099533A KR20100099533A KR101029261B1 KR 101029261 B1 KR101029261 B1 KR 101029261B1 KR 1020100099533 A KR1020100099533 A KR 1020100099533A KR 20100099533 A KR20100099533 A KR 20100099533A KR 101029261 B1 KR101029261 B1 KR 101029261B1
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South Korea
Prior art keywords
shotcrete
permeable
retaining wall
installation step
installing
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KR1020100099533A
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Korean (ko)
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윤경구
최성용
김용곤
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대상이앤씨(주)
강원대학교산학협력단
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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
    • E02D29/0208Gabions
    • 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
    • E02D29/0233Retaining or protecting walls comprising retention means in the backfill the retention means being anchors
    • 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
    • E02D29/0258Retaining or protecting walls characterised by constructional features
    • E02D29/0275Retaining or protecting walls characterised by constructional features cast in situ

Abstract

PURPOSE: A construction method of a retaining wall using a water permeable structure and shotcrete is provided to reduce construction costs and time by organically connecting each construction process. CONSTITUTION: A construction method of a retaining wall using a water permeable structure and shotcrete is composed by the following. A water permeable structure(100) is established in the front side of rear side soil. Shotcrete is placed in the front side of the water permeable structure in order to form a surface structure(200).

Description

숏크리트를 이용한 옹벽의 시공방법{CONSTRUCTION METHOD FOR RETAINING WALL USING SHOTCRETE}Construction method of retaining wall using shotcrete {CONSTRUCTION METHOD FOR RETAINING WALL USING SHOTCRETE}

본 발명은 토목 분야에 관한 것으로서, 상세하게는 옹벽의 시공방법에 관한 것이다.The present invention relates to the field of civil engineering, and in particular, to a construction method of a retaining wall.

도 1 내지 3은 종래의 일반적인 옹벽의 시공방법의 공정을 도시한 것이다.1 to 3 show a process of a conventional method for constructing a retaining wall.

도시된 바와 같이, 종래의 공법은 기초저판(12) 위에 전후면 거푸집(11)을 설치하고(도 1), 그 전후면 거푸집(11) 사이에 콘크리트를 타설하여 표면 구조물(10)을 형성한 후(도 2), 배후토사(1)를 충전함과 함께, 표면 구조물(10)과 배후토사(1)의 사이에 잡석 채움 등에 의한 배수층(20)을 형성하는 공정에 의해 이루어진다.As shown, the conventional method is to install the front and rear formwork 11 on the base bottom plate 12 (Fig. 1), and to cast the concrete between the front and rear formwork 11 to form the surface structure 10 After that (FIG. 2), the back ground sand 1 is filled and a drainage layer 20 is formed between the surface structure 10 and the back ground sand 1 by filling rubble.

그런데, 이러한 종래의 옹벽 시공방법은 표면 구조물의 설치공정, 배후토사의 충전공정, 배수층의 형성공정 등이 서로 유기적으로 운용되지 못하고, 각각 별개로 이루어지는바, 효율적인 공법을 이루지 못한다는 문제점이 있었다.However, the conventional retaining wall construction method has a problem in that the installation process of the surface structure, the filling process of the rearing soil, the forming process of the drainage layer, etc. do not operate organically with each other, and are made separately, and thus do not achieve an efficient construction method.

본 발명은 상기와 같은 문제점을 해결하기 위하여 도출된 것으로서, 각 공정이 서로 유기적으로 운용됨에 따라, 공사기간 및 비용을 줄일 수 있도록 하는 옹벽의 시공방법을 제시하는 것을 그 목적으로 한다.The present invention was derived to solve the above problems, and the object of the present invention is to present a construction method of the retaining wall to reduce the construction period and cost as each process is organically operated.

상기 과제의 해결을 위하여, 본 발명은 배후토사의 전면에 투수 구조물(100)을 설치하는 투수 구조물 설치단계; 상기 투수 구조물(100)의 전면에 숏크리트를 타설하여 표면 구조물(200)을 형성하는 표면 구조물 설치단계;를 포함하는 숏크리트를 이용한 옹벽의 시공방법을 제시한다.In order to solve the above problems, the present invention is a permeable structure installation step of installing a permeable structure 100 in the front of the rear soil sand; It proposes a construction method of the retaining wall using the shotcrete, including; the surface structure installation step of forming the surface structure 200 by pouring shotcrete on the front of the permeable structure 100.

상기 투수 구조물(100)은 투수성 콘크리트에 의해 형성된 투수 블록(110)을 포함하는 것이 바람직하다.The permeable structure 100 preferably includes a permeable block 110 formed by permeable concrete.

상기 투수 구조물(100)은 그물망 구조의 박스(121) 내부에 석재(122)가 충전된 투수 박스(120)를 포함하는 것이 바람직하다.The permeable structure 100 preferably includes a permeation box 120 filled with a stone 122 in the box 121 of the mesh structure.

상기 표면 구조물 설치단계는 상기 투수 구조물(100)을 관통하여 배후토사에 대하여 보강부재(220)를 설치하는 보강부재 설치단계; 상기 투수 구조물(100)의 전단에 지압판(230)을 설치하고, 상기 보강부재(220)의 전단을 상기 지압판(230)에 고정하는 지압판 설치단계;를 더 포함하고, 상기 표면 구조물 설치단계는 상기 보강부재(220)의 전단 및 지압판(230)이 매몰되도록, 상기 투수 구조물(100)의 전면에 숏크리트를 타설하여 표면 구조물(200)을 형성하는 것이 바람직하다.The surface structure installation step may include a reinforcing member installation step of installing a reinforcing member 220 through the permeable structure 100 for the back ground soil; The acupressure plate 230 is installed at the front end of the water permeable structure 100, and the acupressure plate installation step of fixing the front end of the reinforcing member 220 to the acupressure plate 230 further includes the surface structure installation step. In order to bury the front end and the pressure plate 230 of the reinforcing member 220, it is preferable to form the surface structure 200 by pouring shotcrete on the front surface of the permeable structure 100.

상기 투수 구조물 설치단계와 표면 구조물 설치단계의 사이에는, 상기 투수 구조물(100)의 공극을 보호하도록 투수성 재질에 의해 형성된 보호부재(300)를 상기 투수 구조물(100)의 전면에 설치하는 보호부재 설치단계를 더 포함하는 것이 바람직하다.Between the step of installing the permeable structure and the step of installing the surface structure, a protective member for installing a protective member 300 formed by a permeable material to protect the voids of the permeable structure 100 on the front of the permeable structure 100 It is preferable to further include an installation step.

본 발명은 각 공정이 서로 유기적으로 운용됨에 따라, 공사기간 및 비용을 줄일 수 있도록 하는 옹벽의 시공방법을 제시한다.The present invention proposes a method of constructing a retaining wall to reduce the construction period and cost as each process is organically operated.

도 1 내지 3은 종래의 일반적인 옹벽의 시공방법을 도시한 공정도.
도 4 이하는 본 발명의 실시예를 설명하기 위한 것으로서,
도 4 내지 6은 제1 실시예의 공정도.
도 7은 투수 블록의 사시도.
도 8은 투수 박스의 사시도.
도 9는 제2 실시예의 구성도.
도 10,11은 제3 실시예의 구성도.
1 to 3 is a process chart showing a conventional construction method of the retaining wall.
4 is for explaining the embodiment of the present invention,
4 to 6 are process charts of the first embodiment.
7 is a perspective view of a pitcher block;
8 is a perspective view of a pitcher box;
9 is a configuration diagram of a second embodiment.
10 and 11 are block diagrams of the third embodiment.

이하, 첨부도면을 참조하여 본 발명의 실시예에 관하여 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 4 이하에 도시된 바와 같이, 본 발명에 의한 옹벽의 시공방법은 기본적으로, 배후토사의 전면에 투수 구조물(100)을 설치하는 투수 구조물 설치단계(도 4); 투수 구조물(100)의 전면에 숏크리트를 타설하여 표면 구조물(200)을 형성하는 표면 구조물 설치단계(도 5,6);를 포함하여 구성된다.As shown in Figure 4 below, the construction method of the retaining wall according to the present invention basically, the step of installing a permeable structure 100 to install the permeable structure 100 on the front of the rear soil soil (Fig. 4); It is configured to include; surface structure installation step (Fig. 5, 6) to form a surface structure 200 by pouring shotcrete on the front surface of the pitcher structure (100).

여기서, 투수 구조물(100)이란, 투수성 콘크리트에 의해 형성된 투수 블록(110)(도 7), 그물망 구조의 박스(121) 내부에 석재(122)가 충전된 투수 박스(120 : 돌망태)(도 8)와 같이, 투수성을 갖추면서도 일정한 형태를 가진 구조체를 축조 등의 방식에 의해 시공하여 이루어지는 구조물을 말한다.Here, the permeable structure 100 is a permeation block 110 (Fig. 7) formed of permeable concrete, a permeation box 120 (gabion) filled with stone 122 inside the box 121 of the mesh structure (Fig. As in 8), it refers to a structure formed by constructing a structure having a certain shape while having a water permeability by a method such as construction.

본 발명은 이러한 투수 구조물(100)에 의해 옹벽의 투수층을 시공하고, 이어 그 투수구조물(100)의 전면에 숏크리트를 타설하는 방식으로 옹벽을 시공함을 특징으로 한다.The present invention is characterized by constructing the permeable layer of the retaining wall by the permeable structure 100, and then constructing the retaining wall in a manner of pouring shotcrete on the front surface of the permeable structure 100.

따라서 종래 공법에서의 거푸집 작업을 생략할 수 있고, 배후토사의 성토, 투수 구조물의 축조, 숏크리트의 타설이라는 최소한의 공정이 서로 유기적으로 운용됨에 따라, 공사기간 및 비용을 최소로 줄일 수 있다는 효과가 있다.Therefore, the formwork in the conventional construction method can be omitted, and the minimum process of laying the soil behind the soil, constructing the permeable structure, and placing the shotcrete is operated organically with each other, thereby reducing the construction period and cost to the minimum. have.

또한, 숏크리트는 터널의 천정면에 타설되더라도 형상이 쉽게 허물어지지 않는 정도의 반죽질기를 갖는 것이므로, 연직구조의 옹벽의 표면 구조물(200)의 시공에도 충분히 적용될 수 있고(도 6), 경사식 옹벽의 경우에는 더욱 안정적인 적용이 가능하다(도 9).In addition, since the shotcrete has a kneading machine that does not collapse easily even when placed on the ceiling surface of the tunnel, the shotcrete can be sufficiently applied to the construction of the surface structure 200 of the retaining wall of the vertical structure (FIG. 6), and the inclined retaining wall In the case of more stable application is possible (Fig. 9).

도 4 내지 6의 실시예는 역 T형 옹벽에 관한 것으로서, 도면에 도시된 바와 같이 기초저판(12)과 표면 구조물(100)을 별도로 시공할 수도 있고, 일체로 시공할 수도 있다.4 to 6 relates to an inverted T-shaped retaining wall, and as shown in the drawing, the base bottom plate 12 and the surface structure 100 may be separately installed or may be integrally constructed.

표면 구조물의 설치를 위하여, 투수 구조물(100)의 전면에 직접 숏크리트를 타설할 수도 있지만, 이때 콘크리트에 의한 투수 구조물(100)의 공극 막힘을 방지하기 위해서는, 투수 구조물(100)의 공극을 보호하도록 투수성 재질에 의해 형성된 부직포 등의 보호부재(300)를 투수 구조물(100)의 전면에 설치하는 것이 바람직하다.In order to install the surface structure, shotcrete may be poured directly on the front surface of the permeable structure 100, but in order to prevent the air gap of the permeable structure 100 by concrete, the voids of the permeable structure 100 may be protected. It is preferable to install a protective member 300 such as a nonwoven fabric formed of a water-permeable material on the front surface of the water-permeable structure 100.

한편, 본 발명에 의한 공법의 경우에도 소일네일, 어스앵커 등의 보강부재(220)를 적용하여 옹벽 구조물을 보강할 수 있는데, 그 방법은 다음과 같다(도 10,11).On the other hand, in the case of the method according to the present invention can also reinforce the retaining wall structure by applying a reinforcing member 220, such as a small nail, earth anchor, the method is as follows (Fig. 10, 11).

투수 구조물(100)의 설치 후, 투수 구조물(100)을 관통하여 배후토사에 대하여 천공 홀을 형성하고, 그 천공 홀에 소일네일, 어스앵커 등의 보강부재(220)를 설치한다.After installation of the permeable structure 100, a perforated hole is formed through the permeable structure 100 for the rearing soil, and reinforcement members 220 such as a nail and an earth anchor are installed in the perforated hole.

천공 홀과 보강부재(220)의 사이 영역은 그라우팅(221)에 의해 충전한다.The area between the drilled hole and the reinforcing member 220 is filled by the grouting 221.

투수 구조물(100)의 전단에 지압판(230)을 설치하고, 보강부재(220)의 전단을 지압판(230)에 고정한다.The pressure plate 230 is installed at the front end of the water permeable structure 100, and the front end of the reinforcing member 220 is fixed to the pressure plate 230.

투수 구조물(100)의 전면에 숏크리트를 타설하되, 콘크리트에 보강부재(220)의 전단 및 지압판(230)이 매몰되도록 함으로써, 보강부재(220) 및 지압판(230)과 표면 구조물(200)이 일체화 구조를 형성하도록 한다.Placing shotcrete on the front surface of the permeable structure 100, the front end of the reinforcing member 220 and the pressure plate 230 is buried in the concrete, the reinforcing member 220 and the pressure plate 230 and the surface structure 200 is integrated Make a structure.

표면 구조물(200) 내부에 배근(201)을 설치하는 경우에는, 배근(201)가 보강부재(220)의 전단이 상호 결합하도록 하는 것이 바람직하다(도 11).When installing the reinforcement 201 in the surface structure 200, it is preferable that the reinforcement 201 so that the front end of the reinforcing member 220 is mutually coupled (FIG. 11).

이상은 본 발명에 의해 구현될 수 있는 바람직한 실시예의 일부에 관하여 설명한 것에 불과하므로, 주지된 바와 같이 본 발명의 범위는 위의 실시예에 한정되어 해석되어서는 안 될 것이며, 위에서 설명된 본 발명의 기술적 사상과 그 근본을 함께 하는 기술적 사상은 모두 본 발명의 범위에 포함된다고 할 것이다.Since the above has been described only with respect to some of the preferred embodiments that can be implemented by the present invention, the scope of the present invention, as is well known, should not be construed as limited to the above embodiments, the present invention described above It will be said that both the technical idea and the technical idea which together with the base are included in the scope of the present invention.

100 : 투수 구조물 110 : 투수 블록
120 : 투수 박스 121 : 그물망
122 : 석재 200 : 표면 구조물
220 : 보강부재 230 : 지압판
300 : 보호부재
100: pitcher structure 110: pitcher block
120: pitcher box 121: the net
122: stone 200: surface structure
220: reinforcing member 230: pressure plate
300: protection member

Claims (5)

배후토사의 전면에 투수 구조물(100)을 설치하되, 투수성 콘크리트에 의해 형성된 투수 블록(110) 또는, 그물망 구조의 박스(121) 내부에 석재(122)가 충전된 투수 박스(120)의 축조에 의해 상기 투수 구조물(100)을 설치하는 투수 구조물 설치단계;
상기 투수 구조물(100)의 전면에 숏크리트를 타설하여 표면 구조물(200)을 형성하는 표면 구조물 설치단계;를
포함하는 것을 특징으로 하는 숏크리트를 이용한 옹벽의 시공방법.
The permeation structure 100 is installed on the front of the rear soil, but the permeation block 110 formed by the permeable concrete or the construction of the permeation box 120 filled with the stone 122 in the box 121 of the mesh structure A permeation structure installation step of installing the permeation structure 100 by;
Surface structure installation step of forming a surface structure 200 by pouring shotcrete on the front of the permeable structure 100;
Construction method of the retaining wall using shotcrete, characterized in that it comprises a.
삭제delete 삭제delete 제1항에 있어서,
상기 표면 구조물 설치단계는
상기 투수 구조물(100)을 관통하여 배후토사에 대하여 보강부재(220)를 설치하는 보강부재 설치단계;
상기 투수 구조물(100)의 전단에 지압판(230)을 설치하고, 상기 보강부재(220)의 전단을 상기 지압판(230)에 고정하는 지압판 설치단계;를 더 포함하고,
상기 표면 구조물 설치단계는
상기 보강부재(220)의 전단 및 지압판(230)이 매몰되도록, 상기 투수 구조물(100)의 전면에 숏크리트를 타설하여 표면 구조물(200)을 형성하는 것을 특징으로 하는 숏크리트를 이용한 옹벽의 시공방법.
The method of claim 1,
The surface structure installation step
A reinforcing member installation step of installing the reinforcing member 220 through the permeable structure 100 and against the rearing soil;
Installing acupressure plate 230 at the front end of the water permeable structure 100, and installing the acupressure plate to fix the front end of the reinforcing member 220 to the acupressure plate 230;
The surface structure installation step
Method of constructing a retaining wall using a shotcrete, characterized in that to form a surface structure 200 by pouring a shotcrete on the front surface of the permeable structure 100 so that the front end and the pressure plate 230 of the reinforcing member 220 is buried.
제1항 또는 제4항에 있어서,
상기 투수 구조물 설치단계와 표면 구조물 설치단계의 사이에는,
상기 투수 구조물(100)의 공극을 보호하도록 투수성 재질에 의해 형성된 보호부재(300)를 상기 투수 구조물(100)의 전면에 설치하는 보호부재 설치단계를 더 포함하는 것을 특징으로 하는 숏크리트를 이용한 옹벽의 시공방법.
The method according to claim 1 or 4,
Between the pitcher structure installation step and the surface structure installation step,
Retaining wall using shotcrete further comprises a protective member installation step of installing a protective member 300 formed by a permeable material on the front of the water-permeable structure 100 to protect the air gap of the water-permeable structure 100 Construction method.
KR1020100099533A 2010-10-12 2010-10-12 Construction method for retaining wall using shotcrete KR101029261B1 (en)

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
KR20220139847A (en) * 2020-01-07 2022-10-17 대구대학교 산학협력단 Block to reduce earth and water pressure and to increase load bearing, and a construction method to use the block

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Publication number Priority date Publication date Assignee Title
JP2004316416A (en) * 2003-04-04 2004-11-11 Daiwa Kogyo Kk Formation method for water permeable concrete
KR200405354Y1 (en) * 2005-10-05 2006-01-10 최영근 Bearing plate of soil nail for pull-out test
KR200409161Y1 (en) * 2005-11-15 2006-02-20 (주) 일신하이텍 Prefabricated Concrete Pannel Gabion for Constructing Gabion Walls

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Publication number Priority date Publication date Assignee Title
JP2004316416A (en) * 2003-04-04 2004-11-11 Daiwa Kogyo Kk Formation method for water permeable concrete
KR200405354Y1 (en) * 2005-10-05 2006-01-10 최영근 Bearing plate of soil nail for pull-out test
KR200409161Y1 (en) * 2005-11-15 2006-02-20 (주) 일신하이텍 Prefabricated Concrete Pannel Gabion for Constructing Gabion Walls

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220139847A (en) * 2020-01-07 2022-10-17 대구대학교 산학협력단 Block to reduce earth and water pressure and to increase load bearing, and a construction method to use the block
KR102597836B1 (en) * 2020-01-07 2023-11-02 대구대학교 산학협력단 Block to reduce earth and water pressure and to increase load bearing, and a construction method to use the block

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