KR20000026970A - Plastic support member as substitution for wood for civil work - Google Patents

Plastic support member as substitution for wood for civil work Download PDF

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Publication number
KR20000026970A
KR20000026970A KR1019980044742A KR19980044742A KR20000026970A KR 20000026970 A KR20000026970 A KR 20000026970A KR 1019980044742 A KR1019980044742 A KR 1019980044742A KR 19980044742 A KR19980044742 A KR 19980044742A KR 20000026970 A KR20000026970 A KR 20000026970A
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South Korea
Prior art keywords
support member
wood
supporting
support
plastic
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KR1019980044742A
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Korean (ko)
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배은미
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배은미
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Publication of KR20000026970A publication Critical patent/KR20000026970A/en

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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/02Foundation pits
    • E02D17/04Bordering surfacing or stiffening the sides of foundation pits
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00Materials
    • E02D2300/0004Synthetics
    • E02D2300/0006Plastics

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Sewage (AREA)

Abstract

PURPOSE: A plastic support member is provided to have high shear rigidity for enduring a soil pressure as enabling to reuse. CONSTITUTION: A support member(10) is a long bar by forming a hollow part(11) having a rectangular section. Polyethylene, polypropylene, PET, PVC, PS, and so on are used as the plastic materials for the support member. The support member contains a slot(12) separately formed, and the slots forms a drainage hole between support members according to retaining wall installed by accumulating plural support members. Therefore, the slots drain underground water to prevent ground or soil from falling caused by gathering the underground water leaked from the ground facing the outside of a retaining wall.

Description

토목건축용 목재 대용 플라스틱 지지부재Plastic support member for wood for civil construction

본 발명은 토목건축용 목재 대용으로 사용하도록 강성이 강화된 구조의 플라스틱 지지부재에 관한 것으로, 특히 토목건축 공사장에서 흙막이용으로 사용되는 목재 동바리를 대신하여 사용할 수 있도록 높은 급힘강성을 갖는 구조의 플라스틱재 지지부재에 관한 것이다.The present invention relates to a plastic support member of a structure reinforced with rigidity to be used as a substitute for timber for civil construction, and in particular, a plastic material having a high strength rigidity so that it can be used in place of a wooden club used for earthquake construction at a civil construction construction site. It relates to a support member.

예를들어, 고층 건물을 신축하는 경우에 지하로 깊게 흙파기를 하여 기초공사를 한다음 건물을 올리게 되며, 이때 흙파기 공정에서 주변의 흙이 무너져 내리는 것을 방지하여 주변의 건물 붕괴 방지와 함께 흙파기 작업과 기초공사를 안전하고 효율적으로 수행할 것이 요구된다.For example, in the case of building a high-rise building, the underground construction is carried out by digging deep into the basement, and then the building is raised.At this time, the surrounding soil is prevented from collapsing in the digging process to prevent the collapse of surrounding buildings and It is required to carry out the digging and foundation work safely and efficiently.

이를 위하여 도 1에 도시된 바와같이 공사할 장소의 외곽에 소정간격으로, 예를들어 1.8m 간격으로 이격되게 다수의 H빔(1)을 매설한 다음, 매설된 H빔(1)들 사이에 플랜지(3) 내측에 흙막이용 동바리(2)를 배치하고 쐐기목(4)과 같은 것을 H빔의 플랜지와 동바리(2)의 배면 사이에 삽입하여 동바리(2)를 고정시켜 배치하는 것이 일반적이다. 이때 사용되는 흙막이용 동바리(2)는 공사장의 안전을 위하여 토압에 대하여 다소 굽혀질지언정 쉽게 파단되지 않는 특성이 요구되며, 이러한 동바리의 재료로는 전적으로 목재가 사용되어 왔다.To this end, as illustrated in FIG. 1, a plurality of H beams 1 are embedded at predetermined intervals, for example, at 1.8 m intervals on the outside of a place to be constructed, and then, between the embedded H beams 1. It is common to arrange the copper barrier 2 inside the flange 3 by inserting a copper barrier 2 inside the flange 3 and inserting something like the nettle 4 between the flange of the H beam and the back of the copper barrier 2 to fix the copper barrier 2. . At this time, for the safety of the construction copper cladding (2) for the safety of the construction site, although it is somewhat bent against earth pressure is required to be not easily broken, the material of such copper bar has been used entirely wood.

상기 동바리는 단면이 예를들어 가로가 5-7cm이고 세로가 15-20cm인 직사각형으로 되어 있으며 그 길이는 1.8m정도이지만, 해당 공사의 흙파기 깊이에 따른 토압을 계산하여 설계되는 H빔의 간격과 그에 따른 동바리의 두께등은 변경될 수 있다.The copper bar has a cross section of, for example, a rectangle having a width of 5-7 cm and a length of 15-20 cm, the length of which is about 1.8 m, but the gap of the H beam designed by calculating the earth pressure according to the depth of the excavation of the construction. And accordingly the thickness of the group may be changed.

이와같이 토목건축 공사장에서 흙막이 또는 공사 보호판용으로 사용되는 목재 동바리는 적어도 수개월 이상 한 공사장에서 사용되므로 흙이 묻고 긁혀서 손상되는 경우가 많으며 지하수로 인하여 썩기 쉬워서 소실율이 매우 높고, 공사가 완료되어 복토를 위하여 제거한 다음에는 다른 공사장에 다시 사용할 수도 있으나 재활용율이 매우 낮고, 그와같이 동바리로서 사용할 수 없는 경우에는 다른 곳에 사용할 수도 없어 소각에 의해 열을 이용하는 정도의 이용에 불과하여 목재 자원의 낭비가 매우 심한 문제가 있었다.In this way, the timber coppers used for earthen walls or protective plates at civil construction sites are often used for at least several months in construction sites, so they are often damaged by dirt and scratches. After removal, it can be reused for other construction sites, but the recycling rate is very low, and if it cannot be used as a copper bar, it can not be used elsewhere. There was a serious problem.

또한, 동바리로 사용되는 목재는 국내 자원의 부족으로 인하여 거의 전량을 수입에 의존하고 있으며, 고가임에도 재활용율이 낮아서 건축주에게 막대한 공사비 증대를 초래하여 비용부담을 가중시키는 문제가 있었다. 또한, 목재의 경우 무겁기 때문에 운송비의 증대와, 설치 및 철거 작업효율의 저하를 초래하는 문제가 있었다. 따라서, 이와같은 목재 동바리에 대신하여 재활용가능하며, 흙막이 작업을 수행하기 쉽도록 가볍고 비용이 저렴한 대용 부재가 요구되었다.In addition, the timber used as a copper barrier is almost entirely dependent on imports due to the lack of domestic resources, and even though it is expensive, the recycling rate is low, resulting in a huge increase in construction costs for the owners, thereby increasing the cost burden. In addition, in the case of wood is heavy, there is a problem that increases the transportation cost, and lowers the installation and demolition work efficiency. Therefore, in place of such wood clubs, there is a need for a lightweight, low-cost substitute member that is recyclable and easy to carry out the clogging work.

본 발명은 상술한 종래의 목재로된 토목건축용 목재 동바리에 대한 문제를 해결하기 위한 것으로, 가볍고 자원 절약을 위하여 재활용가능하며 토압에 견딜 수 있게 높은 전단강도를 갖도록 강성이 강화된 구조로 이루어지고 폐플라스틱을 포함한 플라스틱재로 성형된 동바리와 같은 지지부재의 제공을 목적으로 한다.The present invention is to solve the problem of the above-described conventional wood timber for civil engineering construction, made of a rigid reinforced structure to have a high shear strength to be light and recyclable for resource saving and to withstand earth pressure An object of the present invention is to provide a supporting member such as a copper barl formed of a plastic material including plastic.

도 1은 종래 토목건축 공사장에서 흙막이용으로 동바리를 사용한 상태의 개략적인 사시도.1 is a schematic perspective view of a state using a copper bar for the earthenware in a conventional civil construction construction site.

도 2는 본 발명에 따른 흙막이용 목재의 동바리 대용 지지부재의 개략적인 사시도.Figure 2 is a schematic perspective view of the support member for replacing the cladding wood according to the present invention.

도 3은 발포재가 충진된, 도 2에 도시된 지지부재의 변형예의 사시도.Figure 3 is a perspective view of a variant of the support member shown in Figure 2, filled with foam.

도 4와 도 5는 중공부에 리브가 형성된, 도 2에 도시된 지지부재의 또 다른 변형예의 사시도.4 and 5 are perspective views of yet another modification of the support member shown in FIG. 2, wherein ribs are formed in the hollow portion;

도 6과 도 7은 도 2에 도시된 지지부재의 또 다른 변형예의 사시도.6 and 7 are perspective views of yet another modification of the support member shown in FIG.

도 8은 도 2의 지지부재에 형성된 배수용 슬로트 대신에 배수구멍을 형성한 변형예의 사시도.8 is a perspective view of a modification in which a drainage hole is formed in place of the drainage slot formed in the support member of FIG.

* 도면의 주요 부분에 대한 부호의 설며 ** The description of the symbols for the main parts of the drawings *

10,20,30,40,60,70 : 지지부재 11 : 중공부10,20,30,40,60,70: support member 11: hollow part

12 : 슬로트 12' : 배수구멍12: Slot 12 ': Drainage hole

21 : 발포재 31,41 : 리브21: foam 31,41: rib

61 : 요홈 62 : 돌출부61: groove 62: protrusion

상기한 목적을 달성하기 위한 본 발명의 토목건축용 동바리와 같은 지지목 대용의 플라스틱재 지지부재는 폐플라스틱재를 포함한 동일 종류의 플라스틱재료를 용융상태에서 성형하되 경량화를 위하여 내부에 중공부가 형성되도록 하고, 적층가능하도록 상면과 저면에 평면부가 형성된 단면이 다각형으로 되도록 하여 구성된다.Plastic member support member substitute for the support wood, such as the civil construction copper bar of the present invention for achieving the above object is to form the same type of plastic material in the molten state, including the waste plastic material to form a hollow inside to reduce the weight The cross section is formed so that the cross-section formed on the upper surface and the lower surface so as to be stackable becomes a polygon.

상기 지지부재 내부의 중공부에는 적어도 일부분에 보강용으로 발포체가 제공될 수 있다. 상기 내부에는 또한 보강용 리브가 내측면에 일체로 형성될 수 있다. 상기 지지부재는 또한 상면과 저면중 적어도 일면에 폭방향으로 적층시 지하수 배수용으로 복수개의 슬로트가 형성되는 것이 바람직하다.The hollow part inside the support member may be provided with a foam for reinforcement at least in part. Inside the reinforcing ribs may also be integrally formed on the inner side. The support member is also preferably formed with a plurality of slots for groundwater drainage when stacked in at least one of the upper surface and the bottom surface in the width direction.

이하, 본 발명의 일실시예를 도시한 첨부도면을 참고하여 본 발명을 상세히 설명하기로 한다.Hereinafter, with reference to the accompanying drawings showing an embodiment of the present invention will be described in detail the present invention.

도 2는 본 발명의 일실시예에 따른 플라스틱재의 지지부재(10)를 도시하고 있으며, 지지부재(10)는 단면이 직사각형으로 내부가 비워진 중공부(11)가 형성되어 외형상 길다란 바 형태로 되어있다. 지지부재(10)는 가로와 세로가 각각 5-7cm, 10-15cm인 경우에 두께 t는 3-5mm인 것이 바람직하다.Figure 2 shows a support member 10 of the plastic material according to an embodiment of the present invention, the support member 10 has a rectangular cross-section is formed in the hollow bar 11 is empty in the form of an elongated bar shape It is. The supporting member 10 has a thickness t of 3-5 mm when the width and length are 5-7 cm and 10-15 cm, respectively.

본 발명의 지지부재용으로 사용되는 플라스틱재료는 폴리에틸렌, 폴리프로필렌, PET, PVC, PS 등이 적합하다.The plastic material used for the support member of the present invention is suitable for polyethylene, polypropylene, PET, PVC, PS and the like.

본 발명의 지지부재(10)는 상기한 것과 같은 종류의 새로운 플라스틱재료 또는 그와 동일한 종류의 폐플라스틱재료를 혼합하여 통상의 방법으로 용융시킨 상태에서 압출시켜 성형한다. 이때, 성형되는 지지부재(10) 경량화를 위하여 내부에 중공부(11)가 형성되도록 하고, 적층가능하도록 상면과 저면이 평면으로 형성하고, 흙막이용으로 설치하여 사용할 때의 토압에 대하여 충분한 전단강도를 갖도록 단면을 다각형, 본 실시예에서는 직사각형으로 압출한다. 또한, 지지부재의 강성을 증대시키기 위하여 원료 플라스틱재에 석분과 같은 충진재를 첨가할 수도 있다.The support member 10 of the present invention is molded by extrusion of a new plastic material of the same kind as described above or waste plastic material of the same kind by mixing in a conventional manner and melting. At this time, the hollow member 11 is formed inside to reduce the weight of the supporting member 10 to be molded, and the upper surface and the bottom surface are formed in a flat surface so that they can be stacked, and the shear strength sufficient for the earth pressure when installed and used for the soil barrier is used. The cross section is extruded into a polygon, in this embodiment a rectangle so as to have a. In addition, in order to increase the rigidity of the support member, a filler such as stone powder may be added to the raw plastic material.

상기 지지부재는 또한 상면과 저면중 적어도 일면에 폭방향으로 복수개의 슬로트(12)가 이격 형성되는 것이 바람직하다. 상기 슬로트(12)들은 복수개의 지지부재(10)들을 적층하여 옹벽을 구축함에 따라 지지부재들 사이에 배수구가 형성되어 그 옹벽 외측에 대향된 지층으로 부터 침출되는 지하수가 고여 지반 붕괴 또는 흙이 무너져 내리는 것을 방지하도록 지하수를 배수시켜 안전하게 한다.The support member is also preferably formed with a plurality of slots 12 spaced apart in at least one of the upper surface and the bottom surface in the width direction. As the slots 12 are formed by stacking a plurality of support members 10 to form a retaining wall, drainage holes are formed between the support members, and groundwater leaching from the ground facing the outer side of the retaining wall accumulates ground collapse or soil. Secure groundwater by draining it to prevent it from falling down.

도 3에는 본 발명에 따른 지지부재의 변형예를 도시하고 있으며, 지지부재(20)는 도 2에 도시된 실시예의 중공부에 발포재(21)를 충진시킨 것으로 발포재는 중공부에서 발포되어 경화된 상태로 유지됨으로써 지지부재의 치수를 증대시키지 않고 과도한 중량 증대없이도 강성을 크게 증대시킨 구조이다. 발포재로는 발포우레탄 또는 폴리올레핀계 발포수지가 적합하다.Figure 3 shows a modification of the support member according to the present invention, the support member 20 is filled with the foam member 21 in the hollow portion of the embodiment shown in Figure 2 as the foam member is foamed in the hollow portion and cured In this case, the rigidity is greatly increased without increasing the size of the support member and without excessive weight increase. As the foaming material, urethane foam or polyolefin foam resin is suitable.

도 4와 도 5는 각각 본 발명의 또 다른 변형예의 지지부재(30,40)를 도시하고 있으며, 상기 지지부재(30,40)들에는 내부의 중공부에 리브(31,41)들이 지지부재의 내측면에 일체로 성형된 것으로 이러한 리브의 형성은 플라스틱재의 성형시에 이형압출함으로써 추가적인 공정없이도 간편하게 얻을 수 있다.4 and 5 show a support member 30, 40 of another modification of the present invention, respectively, wherein the support member 30, 40 has ribs 31, 41 in the hollow portion therein. Since the ribs are integrally molded on the inner surface of the plastic member, the ribs can be easily obtained without any additional process by release extrusion during molding of the plastic material.

상기 지지부재(30,40)들의 지지강성을 더욱 증대시키고자 한다면, 그 내부의 빈 공간에 도 3의 변형예에서와 같이 발포재를 충진할 수도 있음은 쉽게 이해될 수 있을 것이다.If the support rigidity of the support members 30 and 40 is to be further increased, it can be easily understood that the empty space therein may be filled with the foam material as in the modification of FIG. 3.

또한, 도 6과 도 7은 각각 본 발명의 또 다른 변형예의 지지부재(60,70)를 도시하고 있다. 도 6의 지지부재(60)에는 상면에는 길이방향을 따라 요홈(61)이 형성되고 저면에는 인접하여 배치되는 지지부재 상면의 요홈에 맞물리는 형상으로 된 돌출부(62)가 형성되어 H빔들 사이에 배치고정할 때 인접한 지지부재들과 결합되어 토압에 의한 지지부재의 폭방향으로의 힘에 대하여 지지강성을 구조적으로 강화하기 위한 것이다. 또한, 도 6의 지지부재(60)의 요홈(61)과 그에 맞물리는 돌출부(62)의 형성 목적과 마찬가지로 도 7의 지지부재(70)에도 상면에는 길이방향으로 전체적으로 절반부분이 돌출됨과 함께 그 저면에는 상면과 반대측의 부분이 돌출되어 도면에 도시된 바와같이 맞물리도록 되어 결합시에 토압에 대한 지지강성이 증대되도록 된 것이다.6 and 7 show support members 60 and 70 of yet another variant of the invention, respectively. In the support member 60 of FIG. 6, a groove 61 is formed on the upper surface in the longitudinal direction, and a protrusion 62 is formed on the bottom surface to be engaged with the groove on the upper surface of the support member disposed adjacent to each other. It is to structurally strengthen the support rigidity against the force in the width direction of the support member by earth pressure coupled with adjacent support members when the arrangement is fixed. In addition, as well as the purpose of forming the groove 61 of the support member 60 of FIG. 6 and the protrusion 62 engaged therewith, the upper surface of the support member 70 of FIG. On the bottom surface, a portion opposite to the upper surface protrudes to be engaged as shown in the drawing, so that the support stiffness against earth pressure is increased at the time of joining.

또한, 본 발명의 지지부재(10)의 상면에 배수용으로 형성되는 슬로트(12) 대신에 도 8에 도시된 바와같이 지지부재(10')의 지층쪽 측면에 배수구멍(12')을 형성하여 지하수가 배수구멍(12')을 통해 유입되어 중공부를 통해 측방으로 유동하여 H 빔쪽의 개구부를 통해 아래로 배출되도록 할 수도 있다.In addition, instead of the slot 12 formed for drainage on the upper surface of the support member 10 of the present invention, as shown in FIG. It is also possible to form the groundwater flows through the drainage hole 12 'and flow laterally through the hollow portion to be discharged downward through the opening on the H-beam side.

전술한 본 발명의 실시예와 변형예들의 지지부재들은 플라스틱재로 성형되어 결합에 의해 흙막이용 벽을 형성한 다음에 미관을 위하여 페인트로 칠하거나, 성형시에 안료를 첨가하여 자체적으로 아름다운 색상을 갖는 지지부재를 제조할 수 있어서 작업환경을 보다 좋게 할 수 있는 장점도 있다.The support members of the above-described embodiments and variants of the present invention are molded from plastics to form a wall for masonry by joining, and then painted with paint for aesthetics, or by adding a pigment at the time of forming a beautiful color itself. There is also an advantage that can be produced having a support member having a better working environment.

전술한 본 발명의 실시예와 변형예들의 지지부재들은 흙막이용 동바리 대용으로서 설명하였으나, 본 발명의 지지부재는 흙막이용으로만 한정되지 않고 달리 지지를 위한 용도에도 사용될 수 있음을 밝혀둔다.Although the above-described support members of the embodiments and modifications of the present invention have been described as substitutes for the earthen board, it is understood that the support member of the present invention is not limited to the earthen board and may be used for other purposes.

본 발명에 따라, 폐플라스틱을 사용하여 종래 목재로 된 동바리와 같은 지지부재를 성형하여 제조함으로써 폐기에 비용이 들고 환경오염의 문제가 있는 폐플라스틱을 재활용할 수 있고, 목재의 수입을 대체할 수도 있을 뿐만 아니라, 목재와 비교하여 지지강성이 증대되고 가벼워서 시공이 편리하여 작업효율이 향상되며, 침출수에 의해 썩거나 강도가 약해질 위험이 없는 장점이 있다.According to the present invention, by using a waste plastic to form and manufacture a support member such as a copper bark of the conventional wood can be recycled waste plastic, which is expensive to discard and environmental pollution problems, can also replace the import of wood In addition, there is an advantage that the support stiffness is increased and light compared to wood, the construction is convenient and the work efficiency is improved, and there is no risk of rotting or weakening strength by leachate.

Claims (5)

폐플라스틱재를 포함한 동일 종류의 플라스틱재료를 용융상태에서 성형하되 경량화를 위하여 내부에 중공부(11)가 형성되도록 하고, 서로 적층가능하도록 상면과 저면에 평면부가 형성된 단면이 다각형으로 되도록 하여 구성된 토목건축용의 동바리와 같은 지지목 대용의 플라스틱재 지지부재.Civil engineering is constructed by molding plastic materials of the same type including waste plastic materials in a molten state, but having hollow portions 11 formed therein for weight reduction, and having cross-sections formed on top and bottom surfaces in a polygonal shape so as to be stackable with each other. Plastic member for supporting wood, such as construction clubs. 제 1항에 있어서, 상기 내부의 중공부에는 보강용 리브가 내측면에 일체로 형성되는 것을 특징으로 하는 지지부재.The support member according to claim 1, wherein a reinforcing rib is integrally formed at the inner side of the hollow part. 제 1항에 있어서, 상기 지지부재는 또한 상면과 저면중 적어도 일면에 폭방향으로 적층시 지하수 배수용으로 복수개의 슬로트(12)가 형성된 것을 특징으로 하는 지지부재.2. The supporting member according to claim 1, wherein the supporting member further includes a plurality of slots (12) for groundwater drainage when stacked in at least one of an upper surface and a lower surface in the width direction. 제 1항 내지 제 3항중 어느 한 항에 있어서, 지지강성을 증대시키도록 상기 중공부에 발포재를 충진한 것을 특징으로 하는 지지부재.The supporting member according to any one of claims 1 to 3, wherein the hollow member is filled with a foam member so as to increase the supporting rigidity. 제 1항 또는 제 2항에 있어서, 상기 지지부재의 일측면에는 지층으로 부터의 침출수 배수를 위해 배수구멍(12')을 형성한 것을 특징으로 하는 지지부재.The support member according to claim 1 or 2, wherein a drainage hole (12 ') is formed in one side of the support member for draining the leachate from the ground layer.
KR1019980044742A 1998-10-24 1998-10-24 Plastic support member as substitution for wood for civil work KR20000026970A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010032892A1 (en) * 2008-09-20 2010-03-25 D. Y. Roadtech Co.,Ltd A soil retaining plate
KR20220168060A (en) * 2021-06-15 2022-12-22 주식회사 신흥산업 Environment-friendly stone shell retaining wall
KR20230001898U (en) * 2022-03-24 2023-10-05 (주)양지이엔씨 Eco-friendly modular prefabricated retaining wall

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010032892A1 (en) * 2008-09-20 2010-03-25 D. Y. Roadtech Co.,Ltd A soil retaining plate
KR20220168060A (en) * 2021-06-15 2022-12-22 주식회사 신흥산업 Environment-friendly stone shell retaining wall
KR20230001898U (en) * 2022-03-24 2023-10-05 (주)양지이엔씨 Eco-friendly modular prefabricated retaining wall

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