KR20030017901A - Construction Method of Clay Liner of Waste Land-fill Site - Google Patents

Construction Method of Clay Liner of Waste Land-fill Site Download PDF

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Publication number
KR20030017901A
KR20030017901A KR1020010051519A KR20010051519A KR20030017901A KR 20030017901 A KR20030017901 A KR 20030017901A KR 1020010051519 A KR1020010051519 A KR 1020010051519A KR 20010051519 A KR20010051519 A KR 20010051519A KR 20030017901 A KR20030017901 A KR 20030017901A
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clay
clay liner
liner
thickness
mixed soil
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KR1020010051519A
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Korean (ko)
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이현주
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이현주
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Publication of KR20030017901A publication Critical patent/KR20030017901A/en

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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/10—Clay
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/001—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing unburned clay
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/18—Making embankments, e.g. dikes, dams
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B16/02—Cellulosic materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00767—Uses not provided for elsewhere in C04B2111/00 for waste stabilisation purposes
    • C04B2111/00775—Uses not provided for elsewhere in C04B2111/00 for waste stabilisation purposes the composition being used as waste barriers or the like, e.g. compositions used for waste disposal purposes only, but not containing the waste itself
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

PURPOSE: A construction method of a clay liner containing rubber fibers for landfills is provided. The resultant clay liner has high tensile strength so that it prevents leachate seeping into the ground due to cracking of the clay liner. CONSTITUTION: The fibrous mixture for a clay liner(2) comprises 84-92wt.% of clay, 2-12wt.% of bentonite and 2-4wt.% of geosynthetics having a length of 3-6cm and a thickness of 0.3-0.5cm. The clay liner is constructed by laying fibrous mixed clay(A) on the surface of a puddle, compacting three times to have an effective thickness each time, and covering the compacted surface with conventional mixed clay excluding fibers.

Description

폐기물 매립장 점토라이너의 시공방법{Construction Method of Clay Liner of Waste Land-fill Site}Construction Method of Clay Liner of Waste Land-fill Site

본 발명은 투수계수의 조건을 만족시킬 뿐 아니라 자체의 인장강도와 내충격성 및 동결융해에 대한 저항성을 증대시켜 균열 및 파손을 최소화시키는 폐기물 매립장 점토라이너의 시공방법에 관한 것이다.The present invention relates to a method of constructing a waste landfill clay liner that not only satisfies the conditions of permeability coefficient but also increases its tensile strength and impact resistance and resistance to freezing and thawing to minimize cracks and breakage.

일반적으로 폐기물 매립장의 차수시설은 지반에 터파기를 실시하여 정해진 용량을 가지는 커다란 웅덩이를 파고, 점토와 벤토나이트를 혼합하여 만들어진 혼합토를 그 웅덩이의 표면에 깔고 다져서 두께가 50㎝이상(일반 폐기물매립장, 지정폐기물매립장의 경우는 100㎝이상)이 되는 점토라이너를 형성하고, 상기 점토라이너의 상부에 두께 2㎜이상(일반 폐기물매립장, 지정폐기물매립장의 경우는 2.5㎜이상)의 고밀도 폴리에틸렌 시이트로 1겹 이상 포설하여 합성수지 라이너를 형성하는 방법으로 시공된다. 그런데, 폐기물 매립장은 그 주변의 주민들이 기피하는 시설이어서 해안의 매립지와 같이 연약지반에 건설되는 경우가 점차적으로 증가하며, 연약지반에서 발생되는 부동침하 등의 영향으로 인하여 그 점토라이너 자체에 균열이 발생되기 쉽다.In general, the landfill facility is to dig a large puddle with a predetermined capacity by digging the ground, and to crush a mixed soil made by mixing clay and bentonite on the surface of the puddle A clay liner of 100 cm or more in the case of a waste landfill, and at least one layer of high density polyethylene sheet having a thickness of 2 mm or more (2.5 mm or more for a general waste landfill site or a designated waste landfill site) on top of the clay liner. It is constructed by forming a synthetic liner by laying. However, since the waste landfill is a facility avoided by the residents of the surrounding area, it is gradually increased in the soft ground like the landfill in the coast, and the clay liner itself is cracked due to the influence of the floating settlement that occurs in the soft ground. It is easy to occur.

이러한 점토라이너의 균열에 관한 문제를 실제적으로 해결하기 위하여 본 출원인은 지반에 터파기를 실시하여 정해진 용량을 가지도록 파여진 웅덩이의 표면에 점토질의 토사를 92중량%와 벤토나이트 분말을 8중량%로 혼합하여 만들어진 혼합토를 깔고 15㎝의 두께로 1차 다짐을, 15㎝의 두께로 2차다짐을, 20㎝의 두께로 3차 다짐을 실시하여, 점토라이너의 시공을 완료한 후에 그 시료를 채취하여 인장강도와 투수계수를 측정하여 보았다. 이때 점토라이너의 인장강도는 1.62㎏/㎠이며, 투수계수는 5.4×10-8㎝/sec임을 확인할 수 있었다.In order to practically solve the problem of cracking of clay liner, Applicant has mixed 92% by weight of clay soil and 8% by weight of bentonite powder on the surface of the puddle which is excavated to have a fixed capacity by digging the ground. After the completion of the construction of the clay liner, the sample was collected by laying the mixed soil, which was first compacted to a thickness of 15 cm, second compacted to a thickness of 15 cm, and third compacted to a thickness of 20 cm. Tensile strength and permeability coefficient were measured. The tensile strength of the clay liner was 1.62㎏ / ㎠, and the permeability coefficient was found to be 5.4 × 10 -8 cm / sec.

이러한 점토라이너는 투수성의 측면에서는 그 조건을 충족하는 것이지만, 인장강도의 측면에서는 약간의 충격이나 인장력에도 점토라이너에 균열이 발생되는것을 방지할 수 없다. 어느 정도 만족스럽게 균열을 방지하려면 계획 매립고에 따라 다르지만 최소한 3.00㎏/㎠ 이상의 인장강도가 필요하다.The clay liner satisfies the conditions in terms of permeability, but in terms of tensile strength, cracks cannot be prevented from occurring in the clay liner even with slight impact or tensile force. To satisfactorily prevent cracking, depending on the plan landfill, a tensile strength of at least 3.00㎏ / ㎠ is required.

이러한 이유로, 종래의 방법으로 시공되는 폐기물 매립장의 차수시설은 시공 후에 일정기간이 경과하면 그 점토라이너 자체에 균열들이 발생되고 그 균열들을 통하여 침출수가 유출되는 사례가 빈번하게 발견되는 문제점이 있었다.For this reason, in a conventional landfill facility of a waste landfill, there is a problem in that cracks are generated in the clay liner itself and a leachate flows out frequently through the cracks after a certain period of time.

본 발명의 목적은 투수계수의 조건을 만족시킬 뿐 아니라 자체의 인장강도와 내충격성을 증대시켜 균열 및 파손부분을 통하여 침출수가 유출되는 것을 효율적으로 방지하며, 동결융해에 대한 저항성을 향상시키는 등 폐기물 매립장 점토라이너의 시공방법을 제공하는 데 있다.The object of the present invention is not only to satisfy the conditions of the permeability coefficient, but also to increase its tensile strength and impact resistance to effectively prevent the outflow of leachate through cracks and broken parts, and to improve the resistance to freeze-thawing waste. It is to provide a construction method of landfill clay liner.

도1은 본 발명의 폐기물 매립장 점토라이너의 시공상태를 나타낸 단면도1 is a cross-sectional view showing the construction state of the waste landfill clay liner of the present invention

도2는 본 발명의 실시예에 따른 폐기물 매립장 점토라이너를 나타낸 일부분 확대단면도2 is a partially enlarged cross-sectional view showing a waste landfill clay liner according to an embodiment of the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

1: 웅덩이 2: 점토라이너1: puddle 2: clay liner

A: 섬유질의 혼합토 B: 일반 혼합토A: Fibrous mixed soil B: Normal mixed soil

이하, 본 발명의 기술적 구성을 설명하면 다음과 같다.Hereinafter, the technical configuration of the present invention will be described.

본 발명도 도1의 도시와 같이, 지반에 터파기를 실시하여 정해진 용량을 가지도록 파여진 웅덩이(1)의 표면에 혼합토로서 소정의 두께를 가지는 점토라이너 (2)를 형성하는 점에 있어서는 종래의 것과 차이가 없다. 단, 본 발명에서 상기 혼합토는 점토질의 토사와 벤토나이트 분말에 소정의 규격을 가지는 토목섬유가 소정의 비율로 혼합되어 만들어지는 섬유질의 혼합토(A)가 사용된다는 점에서 종래의 방법과 구분된다.In the present invention, as shown in Fig. 1, in the point of forming a clay liner 2 having a predetermined thickness as a mixed soil on the surface of the puddle 1 which is excavated to have a predetermined capacity by digging the ground. There is no difference. However, in the present invention, the mixed soil is distinguished from the conventional method in that a mixed clay of fiber (A) made by mixing the clay soil and bentonite powder with a predetermined ratio of civil fibers having a predetermined standard is used.

여기에서, 토목섬유는 토사와 혼합되어 섬유로서 고유의 특성을 그대로 유지하는 재료로 만들어지는 섬유를 말하며, 일반적으로 토사와 혼합되어도 썩지 않는 합성수지로 만들어지는 섬유를 지칭한다. 본 발명에서 사용되는 토목섬유는 길이가 3∼6㎝, 굵기는 0.3∼0.5㎝의 규격을 가지는 것이 바람직하다. 여기에서, 토목섬유의 길이를 제한하는 것은 혼합작업이 원활하게 진해되도록 하기 위한 것이고, 토목섬유의 굵기를 제한하는 것은 점토라이너에 필요한 투수계수의 요구조건을 충족하기 위한 것이다. 일반적으로 규정요건보다 굵기가 굵은 토목토사는 토사와 일체로 거동하지 않아 투수계수의 요건을 충족하지 못한다.Here, the geosynthetic fiber refers to a fiber made of a material mixed with soil sand and retaining its intrinsic properties, and generally refers to a fiber made of a synthetic resin that does not rot even when mixed with soil sand. The geotextiles used in the present invention preferably have a length of 3 to 6 cm and a thickness of 0.3 to 0.5 cm. Here, limiting the length of the geosynthetic fiber is intended to smooth the mixing operation, and limiting the thickness of the geotextile is to meet the requirements of the permeability coefficient required for the clay liner. In general, civil engineering soils thicker than the regulatory requirements do not behave in unison with the soil and do not meet the requirements of the permeability coefficient.

이와 같이 구성되는 본 발명은 비교적 간단한 방법으로 투수계수의 조건을 만족시킬 뿐 아니라 점토라이너의 인장강도와 내충격성을 증대시켜서 점토라이너에 균열이나 파손이 발생하는 것을 최대한 억제하여 궁극적으로는 점토라이너의 균열을 통하여 침출수가 유출되는 것을 방지하는 효과를 가진다.The present invention constituted as described above not only satisfies the conditions of the permeability coefficient in a relatively simple manner, but also increases the tensile strength and impact resistance of the clay liner to minimize the occurrence of cracks or breakage in the clay liner and ultimately the It has an effect of preventing leachate from flowing out through the crack.

한편, 상기 합성수지 섬유는 합성수지 고무류의 것이 사용되는 경우, 수은, 납 또는 PCB 등의 유독성 유기물을 흡착하여 오염물질의 확산을 방지하는 효과를 더 기대할 수 있다.On the other hand, the synthetic resin fibers can be expected to further increase the effect of preventing the spread of contaminants by adsorbing toxic organic substances such as mercury, lead or PCB when the one of the synthetic resin rubbers are used.

이하, 도2를 참고로 본 발명의 실시예들을 살펴보면 다음과 같다.Hereinafter, the embodiments of the present invention will be described with reference to FIG. 2.

실시예1Example 1

지반에 터파기를 실시하여 정해진 용량을 가지도록 파여진 웅덩이(1)의 표면에 점토질의 토사를 90중량%, 벤토나이트 분말을 8중량%에 길이4.5㎝, 굵기0.4㎝의규격을 가지는 나일론섬유를 2중량%의 비율로 혼합하여 만들어진 섬유질의 혼합토 (A)를 깔고 15㎝의 두께로 1차 다짐을, 15㎝의 두께로 2차다짐을, 18㎝의 두께로 3차 다짐을 실시한 후에, 2㎝의 두께로 섬유사가 포함되지 않는 일반 혼합토(B)로 마무리 하였다.90% by weight of clay soil, 90% by weight of bentonite powder, 4.5cm in length, 0.4cm in thickness, and 0.4cm in thickness were applied to the surface of the puddle 1, which was dug into the ground to have a predetermined capacity. 2 cm after first compaction with a thickness of 15 cm, secondary compaction with a thickness of 15 cm, and tertiary compaction with a thickness of 18 cm Finished with ordinary mixed soil (B) does not contain fiber yarns to the thickness of.

이러한 과정을 거쳐서 점토라이너의 시공을 완료한 후에 그 시료를 채취하여 인장강도와 투수계수를 측정하여 보니, 3.64㎏/㎠의 인장강도와, 6.7×10-8㎝/sec의 투수계수를 확인할 수 있었다. 이는 본 실시예에 따라서 시공되는 섬유질의 점토라이너는 인장강도와 투수성에 관한 요건을 충족시킴을 의미한다.After completing the construction of the clay liner through this process, the sample was taken and measured for tensile strength and permeability coefficient. As a result, tensile strength of 3.64㎏ / ㎠ and permeability coefficient of 6.7 × 10 -8 cm / sec can be confirmed. there was. This means that the fibrous clay liner constructed according to this embodiment fulfills the requirements for tensile strength and permeability.

실시예2Example 2

지반에 터파기를 실시하여 정해진 용량을 가지도록 파여진 웅덩이(1)의 표면에 점토질의 토사를 89중량%, 벤토나이트 분말을 8중량%에 길이 5㎝, 굵기 0.5㎝의 규격을 가지는 나일론섬유를 3중량%의 비율로 혼합하여 만들어진 섬유질의 혼합토 (A)를 깔고 15㎝의 두께로 1차 다짐을, 15㎝의 두께로 2차다짐을, 18㎝의 두께로 3차 다짐을 실시한 후에, 2㎝의 두께로 섬유사가 포함되지 않는 일반 혼합토(B)로 마무리 하였다.89% by weight of clay soil, 8% by weight of bentonite powder, 5cm in length and 0.5cm in thickness were made to the surface of the puddle (1) dug into the ground by digging into the ground. 2 cm after first compaction with a thickness of 15 cm, secondary compaction with a thickness of 15 cm, and tertiary compaction with a thickness of 18 cm Finished with ordinary mixed soil (B) does not contain fiber yarns to the thickness of.

이러한 과정을 거쳐서 점토라이너의 시공을 완료한 후에 그 시료를 채취하여 인장강도와 투수계수를 측정하여 보니, 4.24㎏/㎠의 인장강도와, 8.1×10-8㎝/sec의 투수계수를 확인할 수 있었다. 이는 본 실시예에 따라서 시공되는 섬유질의 점토라이너는 인장강도와 투수성에 관한 요건을 충족시킴을 의미한다.After completion of the construction of the clay liner through this process, the sample was taken and measured for tensile strength and permeability coefficient. As a result, tensile strength of 4.24㎏ / ㎠ and permeability coefficient of 8.1 × 10 -8 cm / sec can be confirmed. there was. This means that the fibrous clay liner constructed according to this embodiment fulfills the requirements for tensile strength and permeability.

실시예3Example 3

지반에 터파기를 실시하여 정해진 용량을 가지도록 파여진 웅덩이(1)의 표면에 점토질의 토사 88중량%와 벤토나이트 분말 8중량%에 길이 5㎝, 굵기 0.5㎝의 규격을 가지는 나일론섬유를 4%의 비율로 혼합하여 만들어진 섬유질의 혼합토(A)를 깔고 15㎝의 두께로 1차 다짐을, 15㎝의 두께로 2차 다짐을, 18㎝의 두께로 3차 다짐을 실시한 후에, 2㎝의 두께로 섬유사가 포함되지 않는 일반 혼합토(B)로 마무리 하였다.4% of nylon fibers having a length of 5 cm and a thickness of 0.5 cm to 88% by weight of clay soil and 8% by weight of bentonite powder on the surface of the puddle (1) excavated to have a predetermined capacity by digging the ground. After the fibrous mixed soil (A) made by mixing at a ratio, the first compaction to a thickness of 15 cm, the second compaction to a thickness of 15 cm, and the third compaction to a thickness of 18 cm, followed by a thickness of 2 cm Finished with a normal mixed soil (B) does not contain fiber yarn.

이러한 과정을 거쳐서 점토라이너의 시공을 완료한 후에 그 시료를 채취하여 인장강도와 투수계수를 측정하여 보니, 4.82㎏/㎠의 인장강도와, 8.9×10-8㎝/sec의 투수계수를 확인할 수 있었다. 이는 본 실시예에 따라서 시공되는 섬유질의 점토라이너는 인장강도와 투수성에 관한 요건을 충족시킴을 의미한다.After the completion of the construction of the clay liner through this process, the sample was taken and measured for tensile strength and permeability coefficient. As a result, tensile strength of 4.82㎏ / ㎠ and permeability coefficient of 8.9 × 10 -8 cm / sec can be confirmed. there was. This means that the fibrous clay liner constructed according to this embodiment fulfills the requirements for tensile strength and permeability.

이상의 실험에서 섬유사가 2∼4%의 토목섬유를 포함하는 섬유질의 혼합토로 형성한 점토라이너와 섬유사를 전혀 포함되지 아니한 혼합토로 형성한 점토라이너는 그 인장강도에서 커다란 차이가 있으며, 이러한 차이는 부동침하, 매립장비 및 청소차량의 충격하중 등의 영향을 받을 때에 점토라이너에 균열의 발생여부에 중대한 영향을 주는 정도의 것임을 분명히 확인할 수 있었다.In the above experiments, the clay liner formed from the mixed soil of fiber containing 2 to 4% of the geosynthetic fiber and the clay liner formed from the mixed soil containing no fiber yarn at all have a big difference in tensile strength. It was clearly confirmed that the clay liner had a significant influence on the occurrence of cracks when it was affected by floating settlement, impact load of landfill equipment and cleaning vehicle.

이상에서 살펴본 바와 같이, 본 발명은 소정의 규격을 가지는 토목섬유를 소정의 함량을 혼합한 섬유질의 혼합토로 점토라이너를 형성하여서 점토라이너 자체에 상당한 인장강도를 부여하여 그 자체의 균열발생을 최소로 억제하여 침출수의 유출을 효율적으로 방지하는 매우 유용한 것이다.As described above, the present invention forms a clay liner with a mixed fiber of geotextiles having a predetermined content of geotextiles having a predetermined size to impart considerable tensile strength to the clay liner itself, thereby minimizing its own cracking. It is very useful to effectively prevent the leakage of leachate by inhibiting.

Claims (4)

지반에 터파기를 실시하여 정해진 용량을 가지도록 파여진 웅덩이의 표면에 혼합토로서 소정의 두께를 가지는 점토라이너를 형성하는 것에 있어서, 상기 혼합토는 점토질의 토사 84∼92중량%, 벤토나이트 분말 2∼12중량%, 소정의 규격을 가지는 토목섬유 2∼4중량%의 비율로 혼합되어 만들어지는 섬유질의 혼합토가 사용되도록 함을 특징으로 하는 폐기물 매립장의 점토라이너의 시공방법.To form a clay liner having a predetermined thickness as a mixed soil on the surface of the pond dug to have a predetermined capacity by digging the ground, the mixed soil is 84 to 92% by weight of clay sand, 2 to 12 weight of bentonite powder %, A method of constructing a clay liner of landfills, characterized in that the mixed soil of the fiber made by mixing at a ratio of 2 to 4% by weight of geotextiles having a predetermined standard. 제1항에 있어서, 상기 토목섬유는 길이가 3∼6㎝, 굵기는 0.3∼0.5㎝의 규격을 가지는 것이 2∼4중량% 사용됨을 특징으로 하는 폐기물 매립장 점토라이너의 시공방법.The method of claim 1, wherein the geosynthetic fiber has a length of 3 to 6 cm, a thickness of 0.3 to 0.5 cm 2 to 4% by weight is used. 제1항 또는 제2항에 있어서, 상기 토목섬유는 합성수지 고무류로 제작됨을 특징으로 하는 폐기물 매립장 점토라이너의 시공방법.3. The method of claim 1 or 2, wherein the geotextile is made of synthetic resin rubbers. 제1항에 있어서, 상기 점토라이너는 섬유질의 혼합토로 일정두께 이상씩 1차 다짐, 2차다짐, 및 3차 다짐을 실시한 후에, 일반 혼합토로 일정두께를 다져서 마무리 함을 특징으로 하는 폐기물 매립장 점토라이너의 시공방법.According to claim 1, wherein the clay liner is a waste landfill clay characterized in that after finishing the first compaction, secondary compaction, and tertiary compaction by mixing the fibrous mixed soil to a certain thickness with a general mixed soil. Construction method of liner.
KR1020010051519A 2001-08-25 2001-08-25 Construction Method of Clay Liner of Waste Land-fill Site KR20030017901A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100821491B1 (en) * 2007-06-11 2008-04-14 서창성 Soil cement for landfill
CN111155386A (en) * 2020-01-07 2020-05-15 中国十七冶集团有限公司 Construction method for controlling backfill thickness of earthwork
CN111576493A (en) * 2020-05-26 2020-08-25 浙江大学 Method for designing full-life service barrier of landfill
CN114737809A (en) * 2022-02-28 2022-07-12 合肥工业大学 Large-scale plastic concrete combined garbage pool

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US5403126A (en) * 1993-03-25 1995-04-04 James Clem Corporation Surface friction enhanced geosynthetic clay liner
KR19980047616A (en) * 1996-12-16 1998-09-15 정용근 Waste landfill construction method using sludge
KR19990039324A (en) * 1997-11-12 1999-06-05 김춘자 Soil stabilization composition and waste landfill construction method using the same
KR20020091719A (en) * 2001-05-31 2002-12-06 고성화 Waterproof stuff of landfill facility

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
US5403126A (en) * 1993-03-25 1995-04-04 James Clem Corporation Surface friction enhanced geosynthetic clay liner
KR19980047616A (en) * 1996-12-16 1998-09-15 정용근 Waste landfill construction method using sludge
KR19990039324A (en) * 1997-11-12 1999-06-05 김춘자 Soil stabilization composition and waste landfill construction method using the same
KR20020091719A (en) * 2001-05-31 2002-12-06 고성화 Waterproof stuff of landfill facility

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100821491B1 (en) * 2007-06-11 2008-04-14 서창성 Soil cement for landfill
CN111155386A (en) * 2020-01-07 2020-05-15 中国十七冶集团有限公司 Construction method for controlling backfill thickness of earthwork
CN111576493A (en) * 2020-05-26 2020-08-25 浙江大学 Method for designing full-life service barrier of landfill
CN111576493B (en) * 2020-05-26 2021-08-06 浙江大学 Method for designing full-life service barrier of landfill
CN114737809A (en) * 2022-02-28 2022-07-12 合肥工业大学 Large-scale plastic concrete combined garbage pool
CN114737809B (en) * 2022-02-28 2023-09-15 合肥工业大学 Large plastic concrete combined garbage pool

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