KR100543284B1 - The method of constructing support wall to use as pillar and slab - Google Patents

The method of constructing support wall to use as pillar and slab Download PDF

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Publication number
KR100543284B1
KR100543284B1 KR1020030031662A KR20030031662A KR100543284B1 KR 100543284 B1 KR100543284 B1 KR 100543284B1 KR 1020030031662 A KR1020030031662 A KR 1020030031662A KR 20030031662 A KR20030031662 A KR 20030031662A KR 100543284 B1 KR100543284 B1 KR 100543284B1
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South Korea
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wall
slab
underground continuous
pillar
interlayer
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KR1020030031662A
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Korean (ko)
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KR20030051478A (en
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권준용
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주식회사 동아지질
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/26—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of wood
    • E04B1/2604—Connections specially adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/26—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of wood
    • E04B1/2604—Connections specially adapted therefor
    • E04B2001/2644—Brackets, gussets or joining plates
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/26—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of wood
    • E04B1/2604—Connections specially adapted therefor
    • E04B2001/2652—Details of nailing, screwing, or bolting

Abstract

본 발명은 기둥과 슬래브로 사용되는 버팀벽의 시공방법에 관한 것으로, 상세하게는 지하연속벽체를 시공하고 이를 지지하기 위해 타설되는 버팀벽을 층간 기둥과 층간 슬래브로 활용할 수 있도록 하는 기둥과 슬래브로 사용되는 버팀벽의 시공방법에 관한 것이다.The present invention relates to a method of constructing a support wall used as a pillar and a slab, and more particularly, to be used as a pillar and a slab so that the support wall can be used as an interlayer column and an interlayer slab for constructing and supporting an underground continuous wall. It is about the construction method of the support wall.

본 발명에 따르면, 버팀벽철근망에 층간높이의 공간마다 육면체의 박스형상의 거푸집을 설치하는 단계를 포함한 버팀벽을 타설하는 단계와; 버팀벽의 타설완료 후 거푸집을 제거하고, 수평부를 층간 슬래브로 활용하고 수직부를 기둥으로 활용하는 단계;를 포함하는 기둥과 슬래브로 사용되는 버팀벽의 시공방법이 제공된다.According to the present invention, a step of placing a brace wall including the step of installing a box-shaped formwork of hexahedron for each space of the interlayer height in the brace wall network; Removing the formwork after completion of the brace wall, using the horizontal portion as the interlayer slab and using the vertical portion as a pillar; providing a construction method of the support wall used as a pillar and slab.

지하연속벽체, 버팀벽, 버팀벽철근망, 슬래브, 기둥Underground continuous wall, bracing wall, bracing rebar network, slab, column

Description

기둥과 슬래브로 사용되는 버팀벽의 시공방법{The method of constructing support wall to use as pillar and slab} The method of constructing support wall to use as pillar and slab}             

도 1은 지하연속벽체의 시공 순서도1 is a flow chart of construction of the continuous underground wall

도 2는 도 1 (e)의 "A-A" 단면도Figure 2 is a cross-sectional view "A-A" of Figure 1 (e).

도 3은 본 발명의 버팀벽을 타설한 상태도3 is a state in which the support wall of the present invention is poured

도 4는 지하연속벽체의 내부 토사를 제거한 상태도4 is a state diagram removing the internal soil of the continuous underground wall

도 5는 지하연속벽체가 완성된 후의 평면도5 is a plan view of the basement continuous wall after completion

도 6은 도 5의 "B"부 입체 상세도6 is a three-dimensional detail view "B" of FIG.

도 7은 도 5의 "C-C" 단면도7 is a cross-sectional view "C-C" of FIG.

도 8은 버팀벽철근망의 상세 사시도8 is a detailed perspective view of the bracing wall network

※ 도면의 주요 부분에 대한 부호의 설명※ Explanation of codes for main parts of drawing

1 : 커터 2 : 철근콘크리트벽 3 : 지하연속벽체1 Cutter 2 Reinforced Concrete Wall 3 Underground Continuous Wall

4 : 버팀벽 5 : 버팀벽철근망 6 : 거푸집4: Reinforcing wall 5: Reinforcing wall 6: Formwork

7 : 수평부 8 : 슬래브 9 : 수직부7 horizontal portion 8 slab 9 vertical portion

10 : 기둥 11 : 트랜치 12 : 철근망10: pillar 11: trench 12: rebar network

h : 층간높이h: height between floors

본 발명은 기둥과 슬래브로 사용되는 버팀벽의 시공방법에 관한 것으로, 상세하게는 지하연속벽체를 시공하고 이를 지지하기 위해 타설되는 버팀벽을 층간 기둥과 층간 슬래브로 활용할 수 있도록 하는 기둥과 슬래브로 사용되는 버팀벽의 시공방법에 관한 것이다.The present invention relates to a method of constructing a support wall used as a pillar and a slab, and more particularly, to be used as a pillar and a slab so that the support wall can be used as an interlayer column and an interlayer slab for constructing and supporting an underground continuous wall. It is about the construction method of the support wall.

지하연속벽체 공법은 굴착면 붕괴와 지하수의 침투를 방지하기 위해, 일정한 폭의 트랜치(trench)에 안정액을 공급하여 붕괴를 막아주면서 지하수의 유입을 차단하고 토사의 굴착에 알맞게 고안된 바켓이나 커터 등의 장비로 설계된 소정의 깊이 만큼 굴착한 후, 철근망을 근입하고 콘크리트를 타설하여 철근콘크리트벽을 조성하는 반복작업으로, 지중에 연속된 철근콘크리트벽으로써 지하연속벽체를 형성하여 댐의 기초, 내진벽, 진동차단벽 및 건축물의 본체벽 또는 기초를 형성하는 공법이다. 지하연속벽체를 조성한 후 내부의 토사를 반출하기 위하여 지하연속벽체를 지지하여야 하는데, 이를 위한 종래의 방식으로 스트러트(strut) 지지방식과 앵커(anchor) 지지방식 등이 일반적인 흙막이 공법으로 사용되고 있다.In order to prevent the collapse of the excavation surface and the penetration of groundwater, the underground continuous wall method supplies a stabilizer to a trench of a certain width to prevent the collapse and to block the inflow of groundwater and to provide a bucket or cutter designed for excavation of soil. After excavation to the predetermined depth designed by equipment, it is a repetitive work to build reinforced concrete wall by injecting reinforcing steel network and placing concrete, and form underground continuous wall as continuous reinforced concrete wall in the ground to form the foundation and seismic wall of dam. It is a method of forming a vibration blocking wall and a main body wall or foundation of a building. After the underground continuous wall is formed, the underground continuous wall must be supported in order to take out the earth and sand. The strut and anchor support methods are conventionally used as the conventional soil barrier method.

그러나, 상기의 스트러트 지지방식의 흙막이는 대구경 천공 후 H-file 마무리 항타시 진동소음이 과다하고, 토류판과 굴토면 사이의 뒷채움이 불충분한 경우 지반변형으로 인접구조물 및 도로 등에 피해가 우려되며, 지층에 따라 차수가 불확 실할 우려가 있고, 토류벽의 강성이 작아 대심도 굴착시 큰 변위를 일으킬 수 있는 등의 문제점이 있다.However, the above strut support mud block has excessive vibration noise during H-file finishing after large-diameter drilling, and insufficient backfill between earth plate and oyster surface, resulting in ground deformation and damage to adjacent structures and roads. As a result, the degree of uncertainty may arise, and the earth wall may have a small rigidity, such that large displacements may cause large displacements during excavation.

그리고, 상기의 앵커 지지방식의 흙막이는 스트러트 방식에 비하여 많은 공사비가 소요되고, 장비가 대형으로 공사부지가 협소한 경우 공사가 어려우며, 지하수위가 높을 경우 앵커시공시 누수의 문제가 발생하고, 앵커시공과 토공작업을 순차적으로 하여야 하므로 공사기간이 장기가 되며, 모래나 자갈층에 정착할 경우 시공이 불량해 질 수 있으며 이 경우 굴착시 지반 변형이 크게 발생할 수 있고, 앵커 시공을 위한 도로점용 허가가 필요하여 그에 따른 비용의 증가가 발생하는 등의 문제점이 있다.And, the above-mentioned anchor support mudstone takes a lot of construction cost compared to the strut method, the construction is difficult when the construction site is narrow due to the large equipment, the problem of water leakage during the construction of the anchor when the groundwater level is high, anchor Since the construction and earthwork must be done in sequence, the construction period becomes long, and if it is settled on sand or gravel, the construction can be poor. In this case, the ground deformation can occur greatly during excavation, and the road use permit for anchor construction is required. If necessary, there is a problem such as an increase in cost accordingly.

그리고, 상기의 문제점을 해결하고자 지하연속벽체의 지지체를 통상의 지하연속벽체를 시공하는 장비로 버팀벽을 시공하는 방법이 본 출원인에 의해 개발되어 있다. 그러나, 상기의 버팀벽을 사용하는 방법은 하나의 기둥으로만 사용할 수 있는 장점은 있으나 공간을 잠식하는 문제점 또는 상존하게 된다.And, in order to solve the above problems, a method for constructing a bracing wall with the equipment for constructing the basement continuous wall of the basement continuous wall has been developed by the present applicant. However, the method of using the support wall has the advantage that it can be used only as a single column, but the problem of encroaching the space or existing.

본 발명의 목적은 지하연속벽체를 지지하는 버팀벽을 공간의 잠식없이 지하연속벽체를 지지함과 동시에 기둥과 슬래브의 일부로 활용할 수 있도록 슬래브에 층간의 공간만큼 거푸집을 넣어 시공하는 기둥과 슬래브로 사용되는 버팀벽의 시공방법을 제공함에 있다.
An object of the present invention is to be used as a pillar and a slab to support the underground continuous wall without encroachment of the continuous wall and to form the formwork as much as the interlayer space in the slab so that it can be used as part of the column and the slab. It is to provide the construction method of the support wall.

이하 본 발명을 첨부 도면에 의거 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

커터(1) 등의 장비를 이용하여 철근콘크리트벽(2)을 반복타설하여 지하연속벽체(3)를 시공하는 제1단계와; 지하연속벽체(3)를 시공한 커터(1) 등의 같은 장비를 이용하여 지하연속벽체(3)에 접하면서 직각방향으로 다수개의 버팀벽(4)을 타설하는 제2단계;로 구성된 지하연속벽체(3) 공법에 있어서; 상기 제2단계는 다음과 같이 세분된다.A first step of constructing the underground continuous wall (3) by repeatedly placing the reinforced concrete wall (2) using equipment such as a cutter (1); A second step of placing a plurality of support walls 4 at right angles while contacting the underground continuous wall 3 using the same equipment as the cutter 1 having the underground continuous wall 3 installed thereon; (3) in the process; The second step is subdivided as follows.

즉, 제2단계는 지하연속벽체(3)에 직각으로 접하면서 지하연속벽체(3)의 깊이보다 더 깊은 트랜치(11)를 형성시키는 단계, 상기 트랜치(11)에 층간높이(h)의 공간마다 육면체의 박스형상의 거푸집(6)을 설치한 버팀벽철근망(5)을 근입하고 콘크리트를 타설하여 버팀벽(4)을 형성시키는 단계, 상기 버팀벽(4)의 타설 후 거푸집(6)을 제거하여 수평부(7)를 층간 슬래브(8)의 일부로 활용하고 수직부(9)를 기둥(10)으로 활용하는 단계;로 세분된다.That is, the second step is to form a trench 11 deeper than the depth of the underground continuous wall 3 while contacting the underground continuous wall 3 at a right angle, the space of the interlayer height h in the trench 11 Injecting the support wall reinforcement net (5) having the box-shaped formwork (6) of each cube to form a support wall (4) by pouring concrete, after removing the formwork (6) after pouring the support wall (4) Utilizing the horizontal portion 7 as part of the interlayer slab 8 and utilizing the vertical portion 9 as the column 10.

도면중 미설명 부호 11은 커터(1)에 의해 굴삭되어 형성된 트랜치이고, 12는 트랜치(11)에 근입되어 지하연속벽체(3)를 구성하는 철근망이며, h는 층간높이이다.In the figure, reference numeral 11 denotes a trench formed by excavation by the cutter 1, 12 denotes a reinforcing bar network that is joined to the trench 11 to form the underground continuous wall 3, and h is an interlayer height.

일반적인 지하연속벽체(3)의 시공은 도 1에 도시되어 있는데, 커터(1)로써 설계된 깊이까지 트랜치(11)를 형성시키는 (a)와, 트랜치(11)에 철근망(12)을 근입시키는 (b)와, 철근망(12)이 근입된 트랜치(11)에 콘크리트를 주입하여 철근콘크리트벽(2)을 타설하는 (c)와, 상기 철근콘크리트벽(2)의 타설을 반복하여 지하연속벽체(3)를 타설하는 (d)가 도시되어 있다. 그리고, (e)에는 상기의 과정을 통해 전체 지하연속벽체(3)가 시공된 상태의 평면도가 도시되어 있다.The construction of a general underground continuous wall 3 is shown in FIG. 1, which forms a trench 11 up to a depth designed as a cutter 1, and the reinforcing bar 12 is recessed in the trench 11. (b) and (c) injecting concrete into the trench 11 into which the reinforcing steel network 12 is placed to pour the reinforced concrete wall 2, and continuously pour the reinforced concrete wall 2 to continue underground. (D) for pouring the wall 3 is shown. And, (e) is a plan view of the state in which the entire underground continuous wall (3) is constructed through the above process is shown.

상기의 도 1의 (e)에서와 같이 지하연속벽체(3)가 시공된 후에는 그 가운데 부에 있는 토사를 제거하여야 하는데, 이 때 지하연속벽체(3)를 지지하는 흙막이 공사가 필요하게 된다. 즉, 스트러트를 대향하는 지하연속벽체(3)의 사이에 서로 지지하게 설치하거나, 지하연속벽체(3)에 앵커를 걸고 그 타단을 지하연속벽체(3)로 형성된 구조물의 외부 지중에 심어서 지하연속벽체(3)가 내부로 붕괴되는 것을 방지하게 하였다. 그러나 상기와 같은 방법은 전기한 것과 같은 문제점을 가지고 있어 스트러트나 앵커가 필요없고 지하연속벽체(3)의 시공과 동시에 버팀벽(4)을 함께 시공하여 버팀벽(4)으로써 지하연속벽체(3)를 지지하는 시공법이 본 출원인에 의하여 개발되어 있다.After the underground continuous wall 3 is constructed, as shown in FIG. 1 (e), the earth and sand in the middle portion of the underground continuous wall 3 must be removed. . That is, the struts are installed to support each other between the underground continuous walls 3 facing each other, or they are anchored to the underground continuous walls 3 and the other end is planted in the outer underground of the structure formed of the underground continuous walls 3 and then underground. The continuous wall 3 was prevented from being collapsed inside. However, the above method has the same problem as the above, so that no struts or anchors are needed, and at the same time as the construction of the underground continuous wall 3, the construction of the continuous wall 4 together with the support wall 4 forms the underground continuous wall 3 as the support wall 4. Supporting construction methods have been developed by the applicant.

즉, 도 2는 지하연속벽체(3)가 시공된 후의 상태를 나타내는 도면이고, 이 상태에서 커터(1)를 이용하여 지하연속벽체(3)의 내측에 접하고 수직으로 트랜치(11)를 형성시킨다. 상기의 트랜치(11)에 철근망(12)을 삽입하여 철근콘크리트벽(2)과 같이 콘크리트를 타설하여 버팀벽(4)을 타설하는 방법이다.That is, FIG. 2 is a view showing a state after the underground continuous wall 3 is constructed, and in this state, the trench 11 is formed vertically in contact with the inside of the underground continuous wall 3 using the cutter 1. . The reinforcement net 12 is inserted into the trench 11 to pour concrete such as the reinforced concrete wall 2 to pour the support wall 4.

여기서, 본 발명은 상기에서 사용되는 통상의 철근망(12)을 대신하여 도 8에 도시된 것과 같이 버팀벽(4)에 전용으로 사용되는 버팀벽철근망(5)을 사용한다. 버팀벽철근망(5)은 층간 간격마다 층을 구성하는 공간부를 형성시키기 위하여 육면체의 박스형상의 거푸집(6)이 층의 갯수만큼 설치되어 있다. 따라서 버팀벽(4)의 타설시에 거푸집(6)의 내부에는 콘크리트가 충진되지 않아 공간부를 형성시키게 된다.Here, the present invention uses a bracing wall reinforcing bar 5 used exclusively for the bracing wall 4 as shown in FIG. 8 in place of the conventional reinforcing bar 12 used above. In the support wall 5, the box-shaped formwork 6 of a hexahedron is provided by the number of layers in order to form a space part constituting a layer at intervals between layers. Therefore, when the support wall 4 is poured, the interior of the formwork 6 is not filled with concrete to form a space part.

상기의 상태가 도 3에 도시되어 있는데, 타설 깊이가 지하연속벽체(3)보다 깊게 된 버팀벽(4) 다수개가 지하연속벽체(3)의 내측으로 형성되어 내부 토사를 제 거하더라도 견고하게 지하연속벽체(3)를 지지하게 됨으로써 지하연속벽체(3)의 붕괴를 막을 수 있고, 도 4에 토사를 제거한 후의 상태가 도시되어 있다.The above state is illustrated in FIG. 3, where a plurality of support walls 4 having a depth of pouring deeper than that of the underground continuous wall 3 are formed inside the underground continuous wall 3 so as to remove the internal soil, thereby making the underground continuous. By supporting the wall 3, the collapse of the underground continuous wall 3 can be prevented, and FIG. 4 shows the state after removing the soil.

상기의 입체적인 형상이 도 6에 도시되어 있는데, 도 5의 "B"부 입체 상세도이다. 즉, 버팀벽(4)의 타설이 완료된 후 거푸집(6)을 제거하게 되는데, 거푸집(6)이 제거된 공간은 각각의 층을 형성하게 되고, 버팀벽(4)의 수직부(9)는 기둥의 역할을 하고, 버팀벽(4)의 수평부(7)는 층간의 슬래브(8)의 역할을 하게 된다. The three-dimensional shape is shown in FIG. 6, which is the "B" portion stereoscopic detail of FIG. 5. That is, after the casting of the support wall 4 is completed, the formwork 6 is removed, and the space from which the formwork 6 is removed forms a respective layer, and the vertical portion 9 of the support wall 4 is formed of a column. And the horizontal portion 7 of the brace wall 4 serves as the slab 8 between the layers.

따라서, 층간 슬래브(8)를 타설한 후의 상태가 도 7에 도시되어 있는데, 버팀벽(4)의 수평부(7)와 층간 슬래브가 연결되고, 수직부(9)는 다른 기둥(10)과 같은 역할을 하게 된다.Thus, the state after pouring the interlayer slab 8 is shown in FIG. 7, where the horizontal portion 7 of the brace wall 4 and the interlayer slab are connected, and the vertical portion 9 is the same as the other pillar 10. It will play a role.

이와같이 본 발명은 지하연속벽체(3)의 지지체 역할을 함과 동시에 기둥(10)과 슬래브(8)로 사용할 수 있도록 버팀벽(4)을 시공함으로써 공사기간의 단축은 물론이고 버팀벽(4)에 의한 공간의 잠식을 방지할 수 있다.As described above, the present invention serves to support the underground continuous wall 3 and at the same time, by constructing the support wall 4 so that the pillar 10 and the slab 8 can be used, the construction period can be shortened as well as by the support wall 4. It can prevent the encroachment of space.

Claims (2)

커터(1) 등의 장비를 이용하여 철근콘크리트벽(2)을 반복타설하여 지하연속벽체(3)를 시공하는 제1단계와; 지하연속벽체(3)를 시공한 커터(1) 등의 같은 장비를 이용하여 지하연속벽체(3)에 접하면서 직각방향으로 다수개의 버팀벽(4)을 타설하는 제2단계;로 구성된 지하연속벽체(3) 공법에 있어서; 상기 제2단계는 지하연속벽체(3)에 직각으로 접하면서 지하연속벽체(3)의 깊이보다 더 깊은 트랜치(11)를 형성시키는 단계, 상기 트랜치(11)에 층간높이(h)의 공간마다 육면체의 박스형상의 거푸집(6)을 설치한 버팀벽철근망(5)을 근입하고 콘크리트를 타설하여 버팀벽(4)을 형성시키는 단계, 상기 버팀벽(4)의 타설 후 거푸집(6)을 제거하여 수평부(7)를 층간 슬래브(8)의 일부로 활용하고 수직부(9)를 기둥(10)으로 활용하는 단계;로 구성됨을 특징으로 하는 기둥과 슬래브로 사용되는 버팀벽의 시공방법.A first step of constructing the underground continuous wall (3) by repeatedly placing the reinforced concrete wall (2) using equipment such as a cutter (1); A second step of placing a plurality of support walls 4 at right angles while contacting the underground continuous wall 3 using the same equipment as the cutter 1 having the underground continuous wall 3 installed thereon; (3) in the process; The second step is to form a trench (11) deeper than the depth of the underground continuous wall (3) while contacting the underground continuous wall (3) at right angles, for each space of the interlayer height (h) in the trench (11) Injecting the reinforcing wall reinforcement net (5) with the box-shaped formwork (6) of the cube and placing concrete to form the reinforcing wall (4), after pouring the reinforcing wall (4) to remove the formwork (6) horizontal Using the part (7) as part of the interlayer slab (8) and using the vertical portion (9) as a column (10); Construction method of the support wall used as a pillar and slab, characterized in that consisting of. 제 1항에 있어서, 버팀벽철근망(5)은 슬래브(8) 두께의 간격을 두고 층간높이(h)를 가지는 거푸집(6)이 하나 이상 설치된 기둥과 슬래브로 사용되는 버팀벽의 시공방법.The method according to claim 1, wherein the reinforcing wall (5) is used as a slab and a column in which at least one formwork (6) having an interlayer height (h) is provided at intervals of the thickness of the slab (8).
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