KR20000008476A - Construction method of laying culvert paving expanded polysterene block - Google Patents
Construction method of laying culvert paving expanded polysterene block Download PDFInfo
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- KR20000008476A KR20000008476A KR1019980028303A KR19980028303A KR20000008476A KR 20000008476 A KR20000008476 A KR 20000008476A KR 1019980028303 A KR1019980028303 A KR 1019980028303A KR 19980028303 A KR19980028303 A KR 19980028303A KR 20000008476 A KR20000008476 A KR 20000008476A
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- culvert
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- block
- filling
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
- F16L1/11—Accessories therefor, e.g. anchors for the detection or protection of pipes in the ground
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B13/00—Irrigation ditches, i.e. gravity flow, open channel water distribution systems
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
Abstract
Description
본 발명은 도로, 지하철, 대규모 부지 조성공사에 사용되는 매설암거의 시공방법에 관한 것으로, 보다 상세하게는 종래 콘크리트 매설암거위에 바로 성토하는 대신에 매설암거의 상단 및 측벽에 발포성 폴리스티렌 블록을 포설한 후 성토함으로써 매설암거에 가해지는 수직 및 수평토압을 감소시킬 수 있는 매설암거의 구축방법에 관한 것이다.The present invention relates to a method for constructing buried culverts used for road, subway, and large-scale site construction work. More specifically, instead of directly filling the concrete buried geese, foamed polystyrene blocks are installed on the top and sidewalls of the buried culverts. The present invention relates to a method for constructing buried culverts that can reduce vertical and horizontal earth pressure applied to buried culverts by post-filling.
일반적으로 스티로포옴이라 불리우는 EPS(Expanded Polystrene)는 공업재료적으로는 발포스티렌으로 불리어진다. 발포 스티렌의 제조방법으로는 알갱이 형태의 폴리스티렌 수지에 아조비스화합물과 같은 발포제를 첨가한 후 가열 연화시킴과 동시에 기체를 발포시키는 것으로, 국내에서는 1970년대초에 발포성 폴리스티렌(이하, "EPS"라 한다)을 생산하기 시작한 이래로 그동안 포장재나 건물의 단열재등으로 활용되어 왔다.In general, expanded polystrene (EPS) called styrofoam is called expanded styrene in industrial materials. The method for producing expanded styrene is to add a blowing agent such as an azobis compound to a granular polystyrene resin, and then soften it by heating and simultaneously foaming a gas. In the early 1970s, expanded polystyrene (hereinafter referred to as "EPS") is called. Since its inception, it has been used as a packaging material or insulation for buildings.
특히, EPS블록이 토목공사에 적용되기 시작한 것은 1972년 노르웨이 오슬로 근교에 있는 교대 인접부의 성토단차를 보수하기 위하여 적용된 것이 최초이며, 이에 발맞춰 노르웨이 국립도로 연구소(NRRL)에서는 연약지만 대책공으로 성토전체를 대형 EPS 블록으로 시공하는 EPS성토공법을 개발 완성하였다.In particular, the EPS block was first applied to civil engineering in 1972 to repair fill gaps near the shift adjacent to Oslo, Norway. The EPS embankment method was developed to construct large EPS blocks.
EPS성토공법은 대형블록을 성토재료 및 뒷채움재료로서 도로, 철도 및 토지조성 등의 토목공사에 적용하는 공법으로 재료의 초경량성, 내압축성, 내수성, 자립성 등의 특징을 유효하게 이용하는 공법으로 정의되고 있다.EPS embankment method is a method that applies large blocks to land works, roads, railroads, and land works as fill material and backfill material. It is defined as a method that effectively utilizes features such as light weight, compression resistance, water resistance, and independence of materials. have.
최근 국내 건설은 국가적 차원의 장기 건설계획과 맞물려 서남해안을 중심으로 대규모 산업단지 조성, 항만, 신공항조성등 해안지역의 개발이 두드러지고 있다. 그러나, 이러한 연약지반상의 건설은 간척부지의 조성에 따른 건물이나 공업시설물 등을 위하여 부지내와 부대도로를 따라 암거의 매설이 요구된다.In recent years, domestic construction has been prominent in the development of coastal areas such as large-scale industrial complexes, harbors, and new airports. However, such soft ground construction requires the burial of culverts in the site and along side roads for buildings and industrial facilities according to the creation of reclaimed land.
연약지반상의 암거의 매설은 일반 지반조건에서와는 달리 지반침하로 인한 암거의 파손이 우려되며, 현재 외국에서는 이에 대한 연구가 많이 진행되고 있는 실정이나 국내에서는 관련 설계 및 시공자체 기술개발에 근거한 것이 아니라 외국의 설계에 전적으로 의존하고 있어 국내실정에 맞는 대책 및 시공상의 문제해결이 요구되고 있다.Unlike the general soil conditions, the burial of culverts on the soft ground is unlikely to damage the culverts due to subsidence. Currently, many studies have been conducted in foreign countries, but in Korea, it is not based on the related design and construction technology development. As it relies entirely on the design of the system, it is required to take measures and solve problems in construction.
연약지반 암거의 파손은 지반침하에 의한 상대변위에 따른 추가하중, 연결부의 응력집중현상, 암거기초의 부동침하 등에 대한 정확한 분석 및 고려가 설계에 반영되지 않고, 현장조건에 맞는 시공방법, 품질관리등이 적절한 기준에 의해 관리되지 않음으로서 발생되며 따라서 이에 대한 효과적인 보완이 요구되고 있다.The damage of the soft ground culvert is not reflected in the design and the analysis of the additional load, the stress concentration of the connection part, the floating settlement of the base of the culvert, etc. And the like are not managed by appropriate standards, and therefore an effective complement is required.
본 발명은 매설암거의 상단 슬라브 및 측벽주변에 EPS블록을 압축재로 포설하여 매설암거에 가해지는 수평 및 수직하중을 주변 흙으로 전달시켜 구조물이 받아야할 토압을 경감시킬 수 있는 경제적이고, 구조적으로 안정한 매설암거의 구축방법을 제공하는 것이다.The present invention is economical and structurally able to reduce the earth pressure to be received by the structure by installing the EPS block around the upper slab and sidewalls of the buried culvert as a compression material to transfer the horizontal and vertical loads applied to the buried culvert to the surrounding soil It is to provide a stable construction method of buried culvert.
도 1은 종래 매설암거 시공단면의 개략적인 구성도이고,1 is a schematic configuration diagram of a conventional buried culvert construction section,
도 2는 본 발명의 발포성 폴리스티렌(EPS)블록을 포설한 매설암거의 개략적인 구성도이고,Figure 2 is a schematic configuration diagram of the buried culvert containing the expanded polystyrene (EPS) block of the present invention,
도 3은 본 발명의 EPS 블록을 포설한 매설암거의 시공 순서도이다.3 is a construction flowchart of the buried culvert in the EPS block of the present invention.
도 4는 EPS블록의 응력-변형특성을 나타낸 그래프이다.4 is a graph showing the stress-strain characteristics of the EPS block.
도면중 주요부분 부호의 설명Explanation of Main Part Codes in Drawings
1 : 매설암거 2, 2' : 측벽부1: buried culvert 2, 2 ': side wall
3 : 상단 슬라브 4 : EPS 블록3: top slab 4: EPS block
5 : 성토층5: fill layer
즉, 본 발명은 매설암거를 설치하기 위하여 지반, 흙 등을 고르는 준비단계와; 매트 및 잡석을 포설하는 단계와; 매설암거를 설치한 후 성토하는 단계로 이루어진 구축방법에 있어서, 상기 매설암거설치후 성토하는 단계가 매설암거의 측벽에 EPS블록을 포설하고 성토하는 단계와 슬라브 상단에 EPS블록을 포설한 후 성토하여 지반층과 동일하도록 마무리하는 단계로 이루어지는 것을 특징으로 하는 EPS를 이용한 매설암거의 구축방법에 관한 것이다.That is, the present invention and the step of selecting the ground, soil, etc. to install the buried culvert; Laying mats and rubble; In the construction method comprising the step of filling the buried culvert after the installation, the step of filling the buried culvert after the installation of the EPS block on the side wall of the buried culvert and fill the EPS block on the top of the slab It relates to a method of constructing buried culvert using EPS, characterized in that the step of finishing to be the same as the ground layer.
이하, 도 1 내지 4를 참조하여 본 발명을 더욱 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail with reference to FIGS. 1 to 4.
먼저, 도 3에 나타낸 것과 같이 매설암거를 설치할 장소에 매설암거 설치후 뒷채움재를 충진할 수 있도록 매설암거 크기보다 약 0.5 내지 1m 정도의 여유를 두고 기초 터파기를 한다.First, as shown in FIG. 3, after installing the buried culvert, the foundation digs with a margin of about 0.5 to 1 m rather than the size of the buried culvert to fill the backfill material.
기초터파기를 한 후 정지작업을 하여 지반을 고르게 하고, 편평한 면에 연약지반의 침하와 같은 피해를 줄이기 위하여 매트 및 잡석을 포설한다. 매트는 일반적인 토목용 섬유로 제조된 것을 사용할 수 있고, 잡석은 직경 1 내지 2cm의 것을 사용할 수 있다.After digging the foundation, stop the work to level the ground and lay mats and rubble on flat surfaces to reduce damage such as settlement of the soft ground. The mat may be made of general civil fibers, and rubble may be used having a diameter of 1 to 2 cm.
상기의 작업이 끝나면 매설암거를 설치하게 되는데, 프리케스트된 매설암거를 사용하는 경우에는 터파기를 해놓은 곳에 매설암거를 단순히 안치하는 것으로 족하고, 현장시공에 의하여 매설암거를 설치하는 경우에는 철근을 조립하고 거푸집을 설치하여 콘크리트를 타설한 후 거푸집을 제거하는 등의 일반적인 순서에 의해 매설암거를 설치한다.When the above work is completed, the buried culvert is installed. When using the precast buried culvert, it is enough to simply place the buried culvert in the place where the trench is installed, and when the buried culvert is installed by site construction, the reinforcing bar is assembled. The burial culvert is installed according to the general procedure such as installing the formwork and placing the concrete and removing the formwork.
다음으로 본 발명에서는 일반적인 매설암거의 설치에서와는 달리 매설암거위에 바로 성토작업을 하지 않고, 상단 및 측벽에 EPS를 포설함으로써 매설암거에 가해지는 하중을 저감시킬 수 있게된다. 즉, 매설암거(1)측벽부(2,2')에 EPS블록(4)를 포설한 후 뒷채움 토사로 채우고 다진후 매설암거(1) 상단 슬라브(3)에 EPS블록(4)을 포설한 후 역시 뒷채움 토사를 채우고 다진다.Next, in the present invention, unlike the installation of the buried culvert, it is possible to reduce the load applied to the buried culvert by installing EPS on the upper side and the sidewall without directly filling the buried culvert. In other words, after installing the EPS block (4) in the buried culvert (1) side wall (2, 2 '), filled with backfill soil, chopped, and then installed the EPS block (4) in the upper slab (3) of the buried culvert (1) After filling and crushing the backfill soil.
본 발명에서 사용되는 EPS는 형내발포법을 사용하여 제조되고 일반적으로 용이하게 구입할 수 있는 것으로, 예를 들면 제일모직, LG, KOREA 바스프, 신호유화등에서 생산된 원료를 가공하여 블록형상으로 제조한 것이다. 통상 EPS는 폴리스티렌 알갱이를 발포시킬 때의 발포배율에 따라 밀도가 결정되는데 일반적으로 밀도크기에 따라 30kg/㎥, 25kg/㎥, 20kg/㎥, 15kg/㎥ 등의 4종류로 구분되고, 규격은 대략 부피 1㎥ 정도의 대형 블록형태로 제조된다. 이와 같은 밀도크기는 EPS블록 설치후 행해지는 성토층의 두께와 깊은 관련이 있는데, 예를 들어 성토층의 두께에 따라 EPS층의 압축이 10 내지 20cm가 이루어지도록 도 4의 EPS블록의 응력-변형특성을 이용하여 상응하는 EPS블록(15kg/㎥, 20kg/㎥, 25kg/㎥, 30kg/㎥등)을 선택하여 사용할 수 있다.The EPS used in the present invention is manufactured using the in-mold foaming method and can be generally easily purchased. For example, the EPS is manufactured in the shape of a block by processing raw materials produced by Cheil Industries, LG, KOREA BASF, Signal Oil, etc. . In general, EPS density is determined according to the expansion ratio when foaming polystyrene granules. Generally, EPS is divided into 4 types such as 30kg / ㎥, 25kg / ㎥, 20kg / ㎥, 15kg / ㎥, and the specifications are approximately. It is manufactured in the form of a large block having a volume of about 1㎥. This density size is deeply related to the thickness of the fill layer after the EPS block is installed, for example, the stress-strain of the EPS block of FIG. 4 so that the compression of the EPS layer is made 10 to 20 cm depending on the thickness of the fill layer. By using the characteristics can be used to select the corresponding EPS block (15kg / ㎥, 20kg / ㎥, 25kg / ㎥, 30kg / ㎥).
EPS블록의 압축강도는 도 4에서 나타낸 바와 같이 약 1% 압축변형율까지는 탄성거동을 보이며 그 이상의 변형율에서는 소성변형을 보이고, 밀도에 관계없이 1%변형에서의 압축강도가 5%변형시의 압축강도의 1/2정도를 나타내며 탄성한계 변형율(1%변형율)에서의 EPS의 압축강도는 밀도증가에 따라 선형적으로 증가한다.As shown in Fig. 4, the compressive strength of EPS blocks shows elastic behavior up to about 1% compressive strain and plastic strain at higher strains, and compressive strength at 5% strain at 1% strain regardless of density. The compressive strength of EPS at elastic limit strain (1% strain) increases linearly with increasing density.
본 발명에서는 상기와 같이 용이하게 구입할 수 있는 EPS블록을 매설암거 측벽 및 상단에 성토 하중에 따라 밀도크기를 선택하여 약 1.8m×0.9m×0.6m(길이×폭×높이)크기로 EPS블록 1개당 2개의 핀으로 고정하여 연속적으로 약 20 내지 60㎝두께가 되도록 도 2와 같이 간단하게 포설한 후 성토작업을 하고 마무리한다.In the present invention, the EPS block 1 can be easily purchased as described above by selecting the density size according to the fill load on the sidewall and the top of the buried culvert, the EPS block 1 to about 1.8m × 0.9m × 0.6m (length × width × height) size Fixed with two pins per piece, so as to be continuously about 20 to 60 cm thick simply laid as shown in Figure 2 and then fill the work and finish.
EPS블록(4)의 포설두께가 20cm 미만인 경우에는 본 발명에서 요구하는 하중저감의 효과를 얻기에 불충분하고, 60cm를 초과하는 경우에는 시공상의 문제나 경제적인 측면에서 바람직하지 않다.If the thickness of the EPS block 4 is less than 20 cm, it is insufficient to obtain the effect of reducing the load required by the present invention. If the thickness of the EPS block 4 exceeds 60 cm, it is not preferable in terms of construction problems and economics.
일반적으로 도 1에 도시한 바와 같이 매설암거(1)를 설치하고 직접 성토작업을 하는 경우에는 예를 들어 성토층이 10m이면 1m두께의 매설암거를 설치하여야 하고 성토층의 하중이 클수록 매설암거의 크기도 비례하여 커져야하기 때문에 경제적인 측면이나 시공 및 제작적인 측면에서 많은 단점이 있으나, 본 발명에서와 같이 EPS블록(4)을 압축재로 사용한 경우에는 성토층(5)이 가하는 하중에 의해 EPS블록에 인위적인 압축 및 변위가 유발되어 흙의 아칭효과 및 변위진전에 의해 매설암거에 가해지는 수직 및 수평토압을 경감시킬 수 있게된다. 보다 구체적으로는 종래 10m 성토층의 매설암거에 가해지는 수직하중의 약 50% 정도까지 감소시킬 수 있게된다.In general, when the buried culvert 1 is installed and directly embanked as shown in FIG. 1, for example, when the fill layer is 10 m, a buried culvert having a thickness of 1 m should be installed. The size also needs to be proportionately large, so there are many disadvantages in terms of economics, construction, and production. However, when the EPS block 4 is used as a compressive material as in the present invention, the EPS is applied by the load applied by the fill layer 5. Artificial compression and displacement of the blocks are induced to reduce the vertical and horizontal earth pressures on the buried culverts by the arching effect and displacement of the soil. More specifically, it can be reduced to about 50% of the vertical load applied to the buried culvert of the conventional 10m fill layer.
이상에서와 같이 매설암거 및 EPS블록의 포설을 마친 후 마무리 작업을 하면 매설암거의 구축은 완료하게 되고, 그 위에 도로나 교량 등의 시공을 하게 된다.As described above, when the buried culvert and the EPS block are laid and finished, the construction of the buried culvert is completed, and the construction of roads and bridges is performed thereon.
이상에서 살펴본 바와 같이 매설암거의 상단 및 측벽에 EPS블록을 압축재로포설함으로써 EPS블록의 인위적인 압축을 유발시켜 작용토압을 주변흙에 전달시킴으로서 매설암거에 가해지는 수평 및 수직하중을 감소시킬 수 있는 보다 경제적이고 구조적으로 안정한 매설암거의 구축을 달성할 수 있게된다.As discussed above, by installing EPS blocks on the top and sidewalls of buried culverts as compressive material, the EPS blocks can be artificially compressed to transmit the working earth pressure to the surrounding soil, thereby reducing the horizontal and vertical loads on the buried culverts. A more economic and structurally stable buried culvert can be achieved.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-1998-0028303A KR100524462B1 (en) | 1998-07-14 | 1998-07-14 | Method of constructing buried culvert containing expanded polystyrene block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-1998-0028303A KR100524462B1 (en) | 1998-07-14 | 1998-07-14 | Method of constructing buried culvert containing expanded polystyrene block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20000008476A true KR20000008476A (en) | 2000-02-07 |
| KR100524462B1 KR100524462B1 (en) | 2005-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR10-1998-0028303A KR100524462B1 (en) | 1998-07-14 | 1998-07-14 | Method of constructing buried culvert containing expanded polystyrene block |
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| KR (1) | KR100524462B1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100297436B1 (en) * | 2000-03-14 | 2001-11-03 | 정숭렬 | Methods for constructing a backfill of concrete structures |
| KR100408436B1 (en) * | 2000-04-04 | 2003-12-06 | 이현종 | A block for recycling waste tire |
| KR100487933B1 (en) * | 2002-05-22 | 2005-05-06 | 주식회사 한진중공업 | load reduction on conduits construction method using EPS block and geosynthetics |
| CN104988950A (en) * | 2015-07-03 | 2015-10-21 | 中国十七冶集团有限公司 | Large-scale underground garage cast-in-place concrete roof embedded EPS block construction method |
| WO2017176232A3 (en) * | 2016-04-04 | 2017-11-09 | Kilic Havvanur | A mechanism and method to reduce the stresses acting on the buried - flexible pipes |
| KR20190019398A (en) * | 2017-08-17 | 2019-02-27 | 주식회사 포스코건설 | Top topping construction method of underground tunnel structure |
-
1998
- 1998-07-14 KR KR10-1998-0028303A patent/KR100524462B1/en not_active IP Right Cessation
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100297436B1 (en) * | 2000-03-14 | 2001-11-03 | 정숭렬 | Methods for constructing a backfill of concrete structures |
| KR100408436B1 (en) * | 2000-04-04 | 2003-12-06 | 이현종 | A block for recycling waste tire |
| KR100487933B1 (en) * | 2002-05-22 | 2005-05-06 | 주식회사 한진중공업 | load reduction on conduits construction method using EPS block and geosynthetics |
| CN104988950A (en) * | 2015-07-03 | 2015-10-21 | 中国十七冶集团有限公司 | Large-scale underground garage cast-in-place concrete roof embedded EPS block construction method |
| CN104988950B (en) * | 2015-07-03 | 2017-01-18 | 中国十七冶集团有限公司 | Large-scale underground garage cast-in-place concrete roof embedded EPS block construction method |
| WO2017176232A3 (en) * | 2016-04-04 | 2017-11-09 | Kilic Havvanur | A mechanism and method to reduce the stresses acting on the buried - flexible pipes |
| KR20190019398A (en) * | 2017-08-17 | 2019-02-27 | 주식회사 포스코건설 | Top topping construction method of underground tunnel structure |
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| Publication number | Publication date |
|---|---|
| KR100524462B1 (en) | 2005-11-30 |
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