KR20030012449A - Method of construction for filling up concrete by using the sack for foundation of fabric in under the water. - Google Patents

Method of construction for filling up concrete by using the sack for foundation of fabric in under the water. Download PDF

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Publication number
KR20030012449A
KR20030012449A KR1020010046470A KR20010046470A KR20030012449A KR 20030012449 A KR20030012449 A KR 20030012449A KR 1020010046470 A KR1020010046470 A KR 1020010046470A KR 20010046470 A KR20010046470 A KR 20010046470A KR 20030012449 A KR20030012449 A KR 20030012449A
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South Korea
Prior art keywords
concrete
bag
foundation
sack
construction
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KR1020010046470A
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Korean (ko)
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원 회 양
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원 회 양
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Priority to KR1020010046470A priority Critical patent/KR20030012449A/en
Publication of KR20030012449A publication Critical patent/KR20030012449A/en

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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00Foundations as substructures
    • E02D27/32Foundations for special purposes
    • E02D27/52Submerged foundations, i.e. submerged in open water
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00Production methods
    • E02D2250/0023Cast, i.e. in situ or in a mold or other formwork

Abstract

PURPOSE: A concrete placing method for the foundation of an underwater structure using a sack is provided to reduce construction expenses and to shorten a period of construction. CONSTITUTION: The concrete placing method for the foundation of an underwater structure using a sack comprises the steps of arranging reinforcing bars(2) in a sack(1) and placing concrete(3) inward, then submerging the sacks(1) as many as required, interposing a concrete placing pipe(4), then placing concrete(3a) from the lowermost part, and withdrawing the concrete placing pipe(4) upward.

Description

포대를 이용한 수중 구조물 기초 콘크리트 타설공법{Method of construction for filling up concrete by using the sack for foundation of fabric in under the water.}Method of construction for filling up concrete by using the sack for foundation of fabric in under the water.

본 발명은 수중 구조물 기초구축에 관한 것으로서, 특히 가물막이 공사나 거푸집 공사등을 하지 않고 포대를 이용하여 수중 구조물기초 구축을 위한 콘크리트 타설을 하기 위한 공법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to the construction of foundations for underwater structures, and more particularly, to a construction method for placing concrete for foundations of underwater structures using a bag without performing a cloak or formwork.

일반적으로 강이나 바다등에서 구조물의 기초구축을 위해서는, 구축하고자 하는 구조물보다 넓은 면적의 사방으로 가물막이를 한후, 그 내부의 물을 외부로 양수시켜 물이 없는 상태에서 콘크리트를 타설하는 가물막이 공법을 이용하거나, 우물통 케이슨 등을 안착시켜 그 우물통 케이슨 내부의 토사를 굴착 준설하고 우물통 케이슨을 필요한 깊이만큼 침하 시킨후 그 내부에 콘크리트를 타설하는 우물통 케이슨 공법, 또는 소정의 거푸집 틀을 만들어 수중 물분리 방지제라는 첨가제를 첨가하여 수중하에서 직접 콘크리트를 타설하거나, 다수개의 작은 크기의 포대에 콘크리트를 부어 봉한후 일정하게 적층하여 양생시키기도 한다.In general, to construct the foundation of a structure in a river or the sea, a temporary screening method is provided in which the wall is blocked in a larger area than the structure to be constructed, and then the water inside is pumped to the outside to cast concrete in the absence of water. Or excavation and dredging the soil inside the well caisson by laying the well caisson, and sinking the well caisson to the required depth, and then make the well caisson method, or form the mold, Addition of additives, such as water separation inhibitors, can be used to pour concrete directly under water, or to pour concrete into a large number of small bags and seal and cure them.

그러나 가물막이 공사나 거푸집 조립, 우물통 케이슨 침하공법 등을 위해서는 많은 공비와 공기가 소요되며, 작은 크기의 포대에 콘크리트를 부어 적층하여 구조물의 기초구축시에는 철근의 배근을 할 수 없으므로 견고하지 못한 단점이 있다.However, it takes a lot of public expense and air for the construction of temporary curtains, assembling formwork, and sinking the well caisson, and it is difficult to reinforce the reinforcement when laying the foundation by pouring concrete into a small bag. There are disadvantages.

도 1은 본 발명상으로 실시되는 포대 내부에 배근한 철근을 식설(植設)하여 수개의 파일군을 형성한 상태도1 is a state diagram in which several pile groups are formed by planting reinforcing bars in the bag according to the present invention.

도 2는 본 발명상으로 실시되는 포대에 콘크리트를 타설하는 과정을 나타내는 일부 절결 예시도Figure 2 is an illustration of some cutaway showing the process of pouring concrete to the bag carried out in accordance with the present invention

도 3은 본 발명상으로 실시되는 포대에 콘크리트를 타설한 후의 상태도Figure 3 is a state diagram after pouring concrete to the bag to be carried out according to the present invention

<도면의 주요부분에 대한 부호설명><Code Description of Main Parts of Drawing>

1. 포대 2. 철근1. bag 2. rebar

3,3a. 콘크리트 4. 콘크리트 타설관3,3a. Concrete 4. Concrete pouring pipe

따라서 본 발명은 종래 여러 공법에서 파생되는 문제점과 상관없이 수중 구조물의 기초를 구축할 수 있도록 안출한 발명인바, 수중 구조물의 기초구축을 위한 본 발명상의 구성을 첨부한 도면에 의거하여 설명하면 다음과 같다.Therefore, the present invention is devised to build the foundation of the underwater structure irrespective of the problems derived from the various methods of the prior art, when described with reference to the accompanying drawings the configuration of the present invention for the basic construction of the underwater structure as follows. same.

수중 구조물의 기초구축에 필요한 소정의 높이와 폭을 가지며 합성섬유 등으로 되는 포대(1)의 내부에 별도로 배근된 철근(2)을 삽입 설치하고, 그 내부에 소량의 콘크리트(3)를 타설한 후, 구축하고자 하는 구조물의 기초 위치에 필요한 폭만큼 다수개 안치하고, 각각의 포대(1) 내부로 콘크리트 타설관(4)을 삽입 후 최하부 바닥부터 콘크리트(3a)를 타설하며, 서서히 콘크리트 타설관(4)을 상부로 인출하면서 포대(1)의 상부까지 콘크리트(3a)를 타설하게 되는바, 이때 콘크리트(3)(3a)는 주변 수압이나 유속등을 감안하여 콘크리트(3)(3a) 물분리 방지제를 첨가함이 바람직하다.Reinforcing bars (2) separately installed in the bag (1) made of synthetic fibers, etc., having a predetermined height and width necessary for the basic construction of the underwater structure, and placing a small amount of concrete (3) After that, a number of the settled in the base position of the structure to be built as many as necessary, insert the concrete pouring pipe (4) into the inside of each bag (1) and then pour the concrete (3a) from the bottom bottom, gradually pour concrete The concrete (3a) is poured to the upper part of the bag (1) while drawing the upper portion (4), wherein the concrete (3) and (3a) are made of concrete (3) and (3a) water in consideration of the surrounding water pressure or flow velocity. Preference is given to adding a separation inhibitor.

상기와 같이 본 발명상으로 되는 포대(1)에 철근(2)을 미리 배근하고 그 하부에 소량의 콘크리트(3)를 미리 타설하여 침수 시키므로서, 포대(1)의 자중에 의해 침수가 용이하며, 침수 후 콘크리트 타설관(4)을 포대(1)의 바닥면까지 주입하여 콘크리트(3a)를 타설하며 서서히 상부로 인출하여 단위 포대(1)의 콘크리트(3a) 타설이 마무리 되며, 이러한 단위 포대(1)르르 전,후,좌,우로 소정의 폭이 되도록 다수개의 포대(1)를 서로 밀착시켜 설치하므로서 하나의 파일군을 형성하도록한다.As described above, the reinforcing bar 2 is pre-arranged to the bag 1 according to the present invention, and a small amount of concrete 3 is poured into the lower part of the bag in advance, so that the bag is easily flooded by the weight of the bag 1. After immersion, the concrete pouring pipe 4 is poured into the bottom surface of the bag 1 to pour the concrete 3a, and then slowly withdrawn to the top of the unit bag 1 to finish the concrete 3a. (1) A pile group is formed by arranging a plurality of bags 1 in close contact with each other so as to have a predetermined width before, after, left and right.

합성섬유 등으로 이루어진 포대(1)가 거푸집 역활을 하므로서, 수중에서도 콘크리트의 재료 분리없이 간단하게 콘크리트(3a) 타설이 가능하며, 수심이 깊은 지역에서도 별다른 사전작업없이 간편하게 구조물의 기초작업이 가능함에 따라 공사비의 파격적인 절감과 공기를 단축할 수 있으며, 포대(1)의 하부에 소량의 콘크리트(3)를 미리 타설후 이 콘크리트(3)의 무게에 의해 강제 침수 시키므로서 침수가 용이하고, 합성섬유인 포대(1)의 특성으로 포대(1)간의 밀착성이 긴밀한 장점이 있다.Since the bag (1) made of synthetic fiber serves as a formwork, it is possible to simply pour concrete (3a) without separating the material of concrete in the water, and it is possible to easily lay the foundation of the structure without any preliminary work even in the deep water. Accordingly, the construction cost can be reduced dramatically and the air can be shortened, and after the small amount of concrete (3) is pre-poured in the lower part of the bag (1), it is easily flooded by being forced to be flooded by the weight of the concrete (3). As a characteristic of the bag 1, there is a close advantage that the adhesion between the bag (1).

Claims (2)

수중 구조물의 기초 구축을 위한 콘크리트 타설공법에 있어서, 소정의 폭과 높이를 가지며 합성섬유등으로 이루어진 포대(1)의 내부에 별도로 배근된 철근(2)을 식설(植設)한 다수개의 포대(1)를 필요한 수만큼 침수시키고, 콘크리트 타설관(4)을 삽입하여 맨 하부부터 콘크리트(3a)를 타설하며, 서서히 콘크리트 타설관(4)을 상부로 인출하는 것을 특징으로 하는 포대를 이용한 수중 구조물기초 콘크리트 타설공법In the concrete pouring method for the foundation construction of an underwater structure, a plurality of bags having a predetermined width and height and implanted reinforcing bar (2) separately placed inside the bag (1) made of synthetic fibers, etc. Submerged 1) as necessary, the concrete pour pipe (4) is inserted into the concrete (3a) from the bottom, and the concrete pour pipe (4) to the top, the underwater structure using the bag Foundation concrete pouring method 제 1항에 있어서, 상기의 포대(1)를 침수시키기 전에 포대(1)의 하부에 소량의 콘크리트(3)를 미리 타설 후, 이 콘크리트(3)의 무게에 의하여 강제침수시키는 것을 특징으로 하는 포대를 이용한 수중 구조물기초 콘크리트 타설공법The method according to claim 1, wherein after a small amount of concrete (3) is poured into the lower part of the bag (1) before the bag (1) is submerged, it is forcedly flooded by the weight of the concrete (3). Underwater Structure-based Concrete Placing Method Using Bags
KR1020010046470A 2001-08-01 2001-08-01 Method of construction for filling up concrete by using the sack for foundation of fabric in under the water. KR20030012449A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117248546A (en) * 2023-11-16 2023-12-19 西南交通大学 Quick construction method and structure of anchor cable frame beam without grooving

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS491007B1 (en) * 1970-12-03 1974-01-11
JPS56128808A (en) * 1980-03-12 1981-10-08 Kazumi Yamaoka Depositing method of concrete in water
KR890005354A (en) * 1987-09-28 1989-05-13 박노철 Concrete pouring method in underground continuous wall construction
JPH06294136A (en) * 1993-04-08 1994-10-21 Fujita Corp Soil improvement pile
JPH07259103A (en) * 1994-03-16 1995-10-09 Takayoshi Fujiwara Improving method for soft ground
US5501550A (en) * 1994-07-11 1996-03-26 Calabrese; Salvatore J. Pile assembly and method employing external mandrel
JPH1025737A (en) * 1996-05-08 1998-01-27 Kajima Corp Method of cast-in-place pile construction just under existing foundation
KR20010007973A (en) * 2000-10-31 2001-02-05 임철웅 Net bag type pile construction method of weak ground

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS491007B1 (en) * 1970-12-03 1974-01-11
JPS56128808A (en) * 1980-03-12 1981-10-08 Kazumi Yamaoka Depositing method of concrete in water
KR890005354A (en) * 1987-09-28 1989-05-13 박노철 Concrete pouring method in underground continuous wall construction
JPH06294136A (en) * 1993-04-08 1994-10-21 Fujita Corp Soil improvement pile
JPH07259103A (en) * 1994-03-16 1995-10-09 Takayoshi Fujiwara Improving method for soft ground
US5501550A (en) * 1994-07-11 1996-03-26 Calabrese; Salvatore J. Pile assembly and method employing external mandrel
JPH1025737A (en) * 1996-05-08 1998-01-27 Kajima Corp Method of cast-in-place pile construction just under existing foundation
KR20010007973A (en) * 2000-10-31 2001-02-05 임철웅 Net bag type pile construction method of weak ground

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117248546A (en) * 2023-11-16 2023-12-19 西南交通大学 Quick construction method and structure of anchor cable frame beam without grooving
CN117248546B (en) * 2023-11-16 2024-02-02 西南交通大学 Quick construction method and structure of anchor cable frame beam without grooving

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