KR200376317Y1 - Drainage Nonwoven Geotextile which is Intercepted with Permeability - Google Patents
Drainage Nonwoven Geotextile which is Intercepted with Permeability Download PDFInfo
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- KR200376317Y1 KR200376317Y1 KR20-2004-0032112U KR20040032112U KR200376317Y1 KR 200376317 Y1 KR200376317 Y1 KR 200376317Y1 KR 20040032112 U KR20040032112 U KR 20040032112U KR 200376317 Y1 KR200376317 Y1 KR 200376317Y1
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- Prior art keywords
- drainage
- groundwater
- nonwoven fabric
- synthetic resin
- permeability
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H13/00—Other non-woven fabrics
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
본 고안은 쓰레기위생매립장 건설공사에서 지하수 배수 목적으로 설치하는 원지반 상부 배수용부직포의 수직투수성 차단에 관한 것으로, 종래의 배수용부직포 일면에 합성수지를 용융 도포하거나, 합성수지 필름을 결합시켜 배수용부직포의 수직투수성을 차단하여 배수용부직포 상부에 설치된 벤토나이트매트에 원지반에서 발생하는 지하수의 영향을 차단하여 설치된 벤토나이트매트의 안정적인 성능확보가 용이하도록 하는 장점을 가진다.The present invention relates to the vertical permeability blocking of the upper base non-woven drainage fabric installed for groundwater drainage in waste sanitary landfill construction work, the conventional non-woven drainage nonwoven fabric by melt-coated synthetic resin, or by combining the synthetic resin film non-woven fabric for drainage Blocking the vertical permeability of the bentonite mat installed on the top of the non-woven fabric for drainage has the advantage of ensuring the stable performance of the bentonite mat installed by blocking the influence of groundwater generated from the ground.
Description
본 고안은 쓰레기위생매립장 건설공사에서 원지반에서 발생하는 지하수 배수를 목적으로 설치하는 수직투수성 차단 배수용부직포에 관한 것으로, 기존 배수용부직포 일면에 합성수지를 용융도포하거나, 합성수지 필름을 결합하여 배수용부직포의 수직투수성을 차단한 것을 특징으로 하는 지하수배수용 배수용부직포에 관한 것이다.The present invention relates to a vertical permeability cut drainage nonwoven fabric installed for the purpose of draining groundwater generated from the ground at the construction of a waste sanitary landfill, and to melt the synthetic resin on one surface of the existing drainage nonwoven fabric or to combine the synthetic resin film for drainage. It relates to a drainage nonwoven fabric for groundwater drainage, characterized in that the vertical permeability of the nonwoven fabric is blocked.
폐기물관리법시행규칙에서 규정하는 위생매립장 사면부 차수시설의 구조는 하부로부터 원지반, 원지반상부에 벤토나이트매트, 벤토나이트매트 상부에 고밀도포리에칠렌 차수시트(2.0mm 이상), 고밀도포리에칠렌 차수시트 상부에 토목합성수지배수층, 토목합성수지배수층 상부에 모래 등으로 30cm 이상 보호 층을 설치하도록 규정하고 있으며, 매립장 건설시 원지반에 지하수의 발생이 있는 경우 원지반상부에 별도의 지하수배수층을 설치한 후 벤토나이트 매트를 설치하고 있다.The structure of the sloped water reclamation facility of the sanitary landfill slope prescribed by the Enforcement Regulations of the Waste Management Act is composed of a bentonite mat from the bottom, an upper bentonite mat, a high-density polyethylene glycol order sheet (2.0 mm or more) on the upper part of the bentonite mat, and a civil engineering resin drainage layer on the upper part of the high-density polyethylene glycol sheet. In addition, it is required to install a protective layer of more than 30cm in the upper part of civil engineering synthetic resin drainage layer with sand, etc., and when there is groundwater in the ground when constructing a landfill, bentonite mat is installed after installing a separate groundwater drainage layer on the upper part of the ground.
기존에 사용하던 배수용부직포(특허 등록번호 제0367819호)는 새로운 개념의 토목합성수지배수재로 기술적 효과를 입증 받아 여러 현장에서 지하수배수층 재료로 사용되고 있었으나, 매립장 건설시 원지반에서 발생한 지하수는 배수용부직포를 통하여 매립장 바닥부로 이동하지만 일부의 지하수 및 지하수의 발생이 많은 경우 지하수가 배수용부직포를 관통하여 상부에 설치된 벤토나이트매트층에 영향을 미치게 된다. 따라서 이 경우 지하수가 설치된 벤토나이트매트를 조기에 수화시키거나 벤토나이트 매트에 함유된 벤토나이트 분말을 세굴시켜 벤토나이트매트의 성능을 저하시키고 위생매립장의 시공품질을 저하시킨다. 이러한 문제점을 보완하기위하여 지하수배수층과 벤토나이트매트층 사이에 별도의 차수막을 추가로 설치하여 시공하고 있으나 이는 과다한 비용의 발생시키고 매립장건설기간을 증가시키는 문제점으로 대두되고 있다.The existing drainage nonwoven fabric (Patent Registration No. 0367819) has been used as a groundwater drainage layer material at various sites as it has been proved to be a new concept of civil synthetic resin drainage material.However, the groundwater generated from the ground during the construction of a landfill site uses a drainage nonwoven fabric. Although it moves to the bottom of the landfill through a lot of groundwater and groundwater occurs, the groundwater penetrates the drainage nonwoven fabric and affects the bentonite mat layer installed at the top. Therefore, in this case, the bentonite mat installed with the groundwater is hydrated early or the bentonite powder contained in the bentonite mat is scoured to degrade the performance of the bentonite mat and the construction quality of the sanitary landfill. In order to compensate for these problems, a separate liner is installed between the groundwater drainage layer and the bentonite mat layer, but this has caused an excessive cost and increased the construction period of the landfill.
따라서 본 고안은 매립장 사면 원지반 상부에 설치하는 지하수배수용 배수용부직포의 수직투수성을 차단하여 상부에 설치한 벤토나이트매트의 조기 수화 및 세굴을 방지하여 성능 및 효과가 극대화 되도록 한 수직투수성 차단 배수용부직포를 제공하는 것을 기술적 과제로 한다.Therefore, the present invention prevents the premature hydration and scour of the bentonite mat installed on the upper part by blocking the vertical permeability of the groundwater drainage nonwoven fabric installed on the upper surface of the slope of the landfill. It is a technical problem to provide a nonwoven fabric.
상기의 기술적 과제를 해결한 본 고안에 의하면 기존의 배수용부직포의 일면에 합성수지를 용융도포 하거나 합성수지필름을 결합하여 수직투수성이 차단된 배수용부직포를 제공한다.According to the present invention to solve the above technical problem is to provide a drainage nonwoven fabric with vertical permeability is blocked by melt-synthesizing the synthetic resin on one surface of the existing nonwoven fabric for drainage or by combining the synthetic resin film.
이하, 본 고안을 보다 상세하게 설명하기로 한다. 기존의 배수용부직포는 부직포 제품의 특성상 수직, 수평 모든 방향으로 배수가 일어나게 되고 원지반에서 발생한 지하수가 배수용부직포 관통하여 상부에 설치된 벤토나이트매트에 도달하게 되며 지하수로 인하여 벤토나이트매트는 수화가 진행되고, 수화된 벤토나이트매트 내부의 벤토나이트 분말은 지하수의 흐름을 따라 세굴되어 부분적으로 벤토나이트매트의 두께가 감소하여 품질이 저하되어 매립장 시공품질이 불량하게 된다. 이러한 문제로 인하여 지하수배수층과 벤토나이트매트 사이에 별도의 불투수성 제품인 고밀도폴리에틸렌 시트를 설치하여 지하수를 차단시켜 벤토나이트매트의 조기수화와 벤토나이트분말의 세굴을 방지하도록 하고 있으나, 시공기간의 증가 및 매립장 건설비용의 증가를 초래하고 있다.Hereinafter, the present invention will be described in more detail. The existing drainage nonwoven fabric is drained in all directions vertically and horizontally due to the characteristics of the nonwoven fabric product. The groundwater from the ground reaches the bentonite mat installed at the upper part through the drainage nonwoven fabric, and the bentonite mat is hydrated due to the groundwater. Bentonite powder in the hydrated bentonite mat is scoured along the flow of the groundwater, and the thickness of the bentonite mat is partially reduced, resulting in poor quality and poor landfill construction quality. Due to this problem, a separate impermeable polyethylene sheet is installed between the groundwater drainage layer and the bentonite mat to block groundwater to prevent premature hydration of bentonite mat and scour of bentonite powder. It is causing an increase.
이러한 문제점을 보완한 본 고안은 배수용부직포의 일면에 합성수지를 용융도포 하거나, 합성수지필름을 결합하여 일체화한 수직투수성 차단 배수용부직포를 제조하여 사용함으로써 매립장 건설시 원지반에서 생기는 지하수의 안전하게 벤토나이트매트의 시공이 가능하도록 하였다.In order to solve these problems, the present invention melts and spreads synthetic resin on one surface of the drainage nonwoven fabric, or manufactures and uses vertical permeability cut drainage nonwoven fabric integrated by combining synthetic resin film to secure the bentonite mat of groundwater generated in the ground during construction of landfill site. The construction was made possible.
이상 설명한 바와 같이 본 고안의 특징 및 기타의 장점은 후술되는 실시예로부터 보다 명백하게 될 것이다. 단, 본 고안은 하기의 실시예로 한정되는 것은 아니다.As described above, the features and other advantages of the present invention will become more apparent from the following embodiments. However, the present invention is not limited to the following examples.
[실시예]EXAMPLE
기존 2000g/㎡의 배수용 부직포 일면에 합성수지를 200㎛ 두께로 용융 도포한 수직투수성 차단 배수용부직포를 제조하였다. 이와 같이 제조한 수직투수성 차단 배수용부직포를 KS K ISO 11058 - 2002 시험법에 의하여 수직투수계수를 측정하고, KS K ISO 12958-2002 시험법에 의하여 가압압력 300kpa 로 투과능계수를 측정하여 기존 2000g/㎡ 배수용 부직포의 수직투수계수 및 투과능계수와 비교하였다.A vertical permeable barrier nonwoven fabric was prepared by melt-coating a synthetic resin with a thickness of 200 μm on one surface of the existing nonwoven fabric for drainage of 2000 g / m 2. The vertical permeability was measured by the KS K ISO 11058-2002 test method, and the permeability coefficient was measured by the pressure of 300 kpa by the KS K ISO 12958-2002 test method. The permeability and permeability coefficients of nonwoven fabrics for 2000 g / m 2 drainage were compared.
비교결과는 [표 1]에 제시한다.The comparison results are shown in [Table 1].
[표 1]TABLE 1
이상 설명한 바와 같이 본 고안의 수직투수성 차단 배수용부직포는 상부에 설치된 벤토나이트매트에 지하수의 영향을 차단시켜 벤토나이트매트가 장기적 성능 유지가 가능하며, 종래 설치하던 별도의 고밀도폴리에틸렌 시트를 설치하지 않아도 되도록 하여 경제적인 매립장 건설이 가능하도록 하였다.As described above, the vertical permeability blocking drainage nonwoven fabric of the present invention blocks the influence of groundwater on the bentonite mat installed on the upper side, so that the bentonite mat can maintain long-term performance, and does not need to install a separate high density polyethylene sheet. Therefore, economic landfill construction was possible.
도 1은 본 고안의 기술이 적용된 수직투수성 차단 배수용부직포의 구조를 개략적으로 나타낸 도면.1 is a view schematically showing a structure of a vertical permeability cut drainage nonwoven fabric to which the technique of the present invention is applied.
*도면 중 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
10 : 배수용부직포층10: drainage nonwoven fabric layer
20 : 수직투수성 차단층(합성수지 용융도포 또는 합성수지필름 결합)20: vertical permeability barrier layer (synthetic resin melt coating or synthetic resin film bonding)
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Cited By (1)
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KR101515945B1 (en) * | 2013-01-17 | 2015-05-04 | 이엔브이이십일(주) | Waste landfill sructure with block-abosorption layer for land fill gas and Installing method the block-abosorption layer aorund gas gathering well |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101515945B1 (en) * | 2013-01-17 | 2015-05-04 | 이엔브이이십일(주) | Waste landfill sructure with block-abosorption layer for land fill gas and Installing method the block-abosorption layer aorund gas gathering well |
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