KR100615472B1 - Reinforced earth retaining wall supporting strip fiber reinforcement and construction method - Google Patents

Reinforced earth retaining wall supporting strip fiber reinforcement and construction method Download PDF

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KR100615472B1
KR100615472B1 KR1020060007334A KR20060007334A KR100615472B1 KR 100615472 B1 KR100615472 B1 KR 100615472B1 KR 1020060007334 A KR1020060007334 A KR 1020060007334A KR 20060007334 A KR20060007334 A KR 20060007334A KR 100615472 B1 KR100615472 B1 KR 100615472B1
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shaped fiber
fiber reinforcement
reinforcement
retaining wall
band
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이정수
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이정수
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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
    • E02D29/02—Retaining or protecting walls
    • E02D29/0225—Retaining or protecting walls comprising retention means in the backfill
    • E02D29/0241—Retaining or protecting walls comprising retention means in the backfill the retention means being reinforced earth elements
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0004—Synthetics
    • E02D2300/0006—Plastics
    • E02D2300/0009—PE
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0051—Including fibers
    • E02D2300/0054—Including fibers made from plastic
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/20—Miscellaneous comprising details of connection between elements

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)

Abstract

개선된 형태의 조립식 보강토 옹벽 지지용 띠형 섬유보강재 및 이의 시공방법이 개시된다. 앵커와 앵커 핀 없이 띠형 섬유보강재(10)의 선단부를 좁은 폭(幅)으로 다중(多重)으로 접어 옹벽 블록(20)에 형성된 보강재 삽입홈(22)에 직접 걸어줌으로써 확고한 연결상태를 이루고, 앵커나 앵커 핀과 같은 부자재의 소비를 생략함과 아울러 연결작업의 단순화를 도모할 수 있도록 하며, 띠형 섬유보강재(10) 선단부의 느즈러짐이 발생하지 않고 응력이 집중되지 않아 옹벽 면의 시공 하자가 발생하지 않는다. 보강토체(30) 내에 매립되는 띠형 섬유보강재(10)는 원래의 폭(幅)으로 펼쳐진 상태로 설치되어 보강토체(30)와의 견고한 마찰지지력을 발휘하며, 띠형 섬유보강재(10)의 후단부도 다중으로 접힌 상태로 굽혀지므로 토압을 받더라도 세워진 상태가 눌리지 않으므로 앞쪽의 마찰력에 부가하여 수동지지저항력을 발휘할 수 있다.An improved form of prefabricated reinforcement earth retaining wall support is disclosed. Fold the tip end of the strip-shaped fiber reinforcement 10 in a narrow width without multiple anchors and anchor pins, and hang it directly to the reinforcement insertion groove 22 formed in the retaining wall block 20 to form a firm connection state. In addition, the consumption of subsidiary materials such as anchor pins can be omitted, and the connection work can be simplified, and there is no loosening of the tip of the strip-shaped fiber reinforcement 10, and stress is not concentrated. I never do that. The strip-shaped fiber reinforcement 10 embedded in the reinforcement soil 30 is installed in an unfolded state in its original width to exert strong friction support with the reinforcement soil 30, and the rear end portion of the strip-shaped fiber reinforcement 10 is also multiplexed. Because it is bent in a folded state, the standing state can not be pressed even when subjected to earth pressure, so that it can exert passive bearing resistance in addition to the frictional force in front.

띠형 섬유보강재, 보강토 옹벽, 블록, 접힘, 다중, 마찰력향상 Strip-shaped fiber reinforcement, reinforced earth retaining wall, block, folding, multiple, improved friction

Description

보강토 옹벽 지지용 띠형 섬유보강재 및 이의 시공방법 {reinforcing strip for supporting reinforced earth wall and its placement method}Reinforcing strip for supporting reinforced earth wall and its placement method}

도 1은 본 출원인의 선출원 발명에 의한 띠형 섬유보강재를 도시한 사시도 및 요불확대도.Figure 1 is a perspective view and enlarged view of the belt-shaped fiber reinforcement according to the applicant of the present application.

도 2는 본 발명의 제1실시 예에 의한 띠형 섬유보강재의 사시도.2 is a perspective view of a strip-shaped fiber reinforcement according to the first embodiment of the present invention.

도 3은 도 2에 도시된 띠형 섬유보강재의 접힌상태 사시도.Figure 3 is a perspective view of the folded state of the band-shaped fiber reinforcement shown in FIG.

도 4는 본 발명의 제2실시 예에 의한 띠형 섬유보강재의 사시도.4 is a perspective view of a strip-shaped fiber reinforcing material according to a second embodiment of the present invention.

도 5는 도 4에 도시된 띠형 섬유보강재의 접힌상태 사시도.Figure 5 is a perspective view of the folded state of the strip-shaped fiber reinforcement shown in FIG.

도 6은 본 발명의 제3실시 예에 의한 띠형 섬유보강재의 사시도.6 is a perspective view of a strip-shaped fiber reinforcing material according to a third embodiment of the present invention.

도 7은 도 6에 도시된 띠형 섬유보강재의 접힌상태 사시도.Figure 7 is a perspective view of the folded state of the strip-shaped fiber reinforcement shown in FIG.

도 8은 본 발명의 제4실시 예에 의한 띠형 섬유보강재의 사시도.8 is a perspective view of a strip-shaped fiber reinforcing material according to a fourth embodiment of the present invention.

도 9는 도 8에 도시된 띠형 섬유보강재의 접힌상태 사시도.9 is a perspective view of the folded state of the band-shaped fiber reinforcement shown in FIG.

도 10은 본 발명에 의한 띠형 섬유보강재의 시공상태 사시도.Figure 10 is a perspective view of the construction state of the strip-shaped fiber reinforcement according to the present invention.

도 11은 본 발명에 의한 띠형 섬유보강재의 또 다른 시공상태 사시도.Figure 11 is another perspective view of the construction state of the strip-shaped fiber reinforcement according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 띠형 섬유보강재 12 : 폴리에스테르 섬유다발10: strip type fiber reinforcing material 12: polyester fiber bundle

14 : 폴리에틸렌 피복층 16 : 접힘홈14 polyethylene coating layer 16 folded groove

17 : 연결살 F : 선단부17: connecting rod F: distal end

R : 후단부 20 : 옹벽 축조용 블록R: rear end 20: retaining wall construction block

22 : 보강재 삽입홈 30 : 보강토체22: reinforcement insert groove 30: reinforcement body

본 발명은 조립식 보강토 옹벽 지지용 띠형 섬유보강재 및 이의 시공방법에 관한 것으로, 상세히는 섬유보강재의 선단부를 블록의 보강재 삽입홈에 접어서 끼울 때 이를 좁은 폭(幅)이 되도록 다중(多重)으로 접어서 끼워줄 수 있는 구조로 제작함으로써 블록에 보강재 삽입홈의 깊이를 깊게 형성하기 어려웠던 현실적인 기술문제를 벗어날 수 있으며, 보강토체 위에서는 온전한 폭으로 펼쳐져 섬유보강재의 연결수량을 증가시키지 않고도 섬유보강재의 마찰면적을 넓혀줌으로써 섬유보강재의 뒷 길이를 줄여 줄 수 있어 섬유보강재의 소요길이를 감소시킬 수 있고, 섬유보강재의 후단부도 선단부에서와 같이 다중으로 접어 반원형으로 세운 상태로 보강토체 내에 매립시키면 세워진 형태를 그대로 유지함으로써 섬유보강재의 표면마찰력에 더하여 수동지지저항력을 부가할 수 있도록 한 것이다.The present invention relates to a prefabricated reinforced soil retaining wall support band-shaped fiber reinforcement and its construction method, and in detail, when the front end portion of the fiber reinforcement is folded into the reinforcement insertion groove of the block and folded into multiple widths so as to have a narrow width. By making the structure to be able to give, it is possible to escape the realistic technical problem that it was difficult to form the depth of the reinforcement insertion groove in the block, and it spreads intact on the reinforcement body to increase the friction area of the fiber reinforcement without increasing the connection amount of the fiber reinforcement. By reducing the back length of the fiber reinforcement by widening it, the required length of the fiber reinforcement can be reduced, and the rear end of the fiber reinforcement can also be folded in multiples and placed in a semicircular shape in the same state as the front end, and then built in the reinforcement soil. In addition to the surface friction of fiber reinforcement It will allow you to support resistance can be added.

도 1은 본 출원인의 특허출원 제2004-111929호(2004.12.24.출원) 발명에 의한 토목용 띠형 섬유보강재의 도면으로, 여러 개의 폴리에스테르 섬유다발이 평행 하게 배치되고 그 외부에 폴리에틸렌 수지로 피복된 띠형 섬유보강재에 있어서, 상기 띠형 섬유보강재(10)는 길이방향을 따라 그 중간 부분이 다른 부분보다 얇은 두께로 접힘홈(16)이 형성된 것이며, 이는 옹벽을 형성하는 블록의 보강재 삽입홈에 띠형 섬유보강재의 선단부가 길이방향을 따라 반 폭으로 접힌 상태로 끼움 설치된 것이다.1 is a drawing of a strip-fiber reinforcing material for civil engineering according to the present invention of the applicant's patent application No. 2004-111929 (filed Dec. 24, 2004), in which a plurality of polyester fiber bundles are arranged in parallel and covered with polyethylene resin on the outside thereof. In the strip-shaped fiber reinforcement, the strip-shaped fiber reinforcement (10) is formed in the longitudinal direction of the fold groove 16 is formed in the thickness of the middle portion is thinner than the other portion, which is a strip-shaped reinforcement insert groove of the block forming the retaining wall The front end of the fiber reinforcement is fitted in a state folded in half width along the longitudinal direction.

상기한 본 출원인의 선출원 발명은 조립식 보강토 옹벽을 이루는 옹벽 블록과의 연결을 별도의 앵커나 앵커 핀 등을 사용하지 않으므로 부자재에 대한 추가비용부담이 없이 블록과 띠형 섬유보강재 간의 연결작업이 가능하게 되며, 블록에 형성된 보강재 삽입홈에 띠형 섬유보강재의 폭을 절반으로 접은 상태로 직접 끼워져 지지하도록 되어 있어 앵커를 사용하여 띠형 섬유보강재를 연결하고 당겨서 시공할 경우 발생하게 되는 띠형 섬유보강재의 느즈러짐을 완벽하게 해소할 수 있고, 띠형 섬유보강재의 후단부는 보강토체 위에 임시고정못 등으로 손쉽게 고정하거나 보강토체의 영역이 좁은 경우나 보다 견고한 지지력을 발휘할 수 있도록 하기 위해서는 섬유보강재 자체를 접어 세워서 자체가 저항체 기능을 발휘하도록 하거나 또는 별도의 저항체 등을 사용할 수 있으므로 조립식 보강토 옹벽을 지지하기 위한 띠형 섬유보강재의 설치작업성이 향상됨은 물론 자재비와 인건비를 줄일 수 있어 보강토 옹벽의 경제적인 시공이 가능한 이점이 있다.The applicant's prior application described above does not use a separate anchor or anchor pin to connect the retaining wall block constituting the prefabricated reinforcement retaining wall, so that the connection work between the block and the strip-shaped fiber reinforcement is possible without additional cost burden on subsidiary materials. , The width of the band-shaped fiber stiffener is inserted into the reinforcing material insertion groove formed in the block in half folded state to support it, so that the loosening of the band-shaped fiber stiffener generated when connecting and pulling the band-shaped fiber stiffener using the anchor is completed. The rear end of the strip-shaped fiber reinforcement can be easily fixed with temporary fixing nails on the reinforcement soil, or the fiber reinforcement itself can be folded up so that the reinforcement soil can be narrowed or exhibit more robust support. Or a separate resistor Since the installation workability of the strip-shaped fiber reinforcement for supporting the prefabricated reinforcement retaining wall can be improved, the material cost and labor cost can be reduced, and thus the economical construction of the reinforcement retaining wall is possible.

본 발명은 상기한 본 출원인의 선출원발명에 의한 띠형 섬유보강재 및 이의 시공방법을 더욱 개량 발명한 것으로, 본 발명의 목적은 첫째, 띠형 섬유보강재의 선단부를 블록의 보강재 삽입홈에 접어서 끼울 때 이를 가능한 좁은 폭(幅)이 되도록 접을 수 있는 구조로 제작함으로써 블록에 보강재 삽입홈의 깊이를 깊게 형성하기 어려웠던 기술적이고 현실적인 문제점을 해소할 수 있도록 하는 데 있고, 둘째, 이 띠형 섬유보강재가 보강토체 위에서는 온전한 폭으로 펼쳐질 수 있도록 함으로써 띠형 섬유보강재의 연결수량을 증가시키지 않고도 섬유보강재의 마찰면적을 넓혀줄 수 있도록 함으로써 띠형 섬유보강재의 뒷 길이를 줄여 줄 수 있어 섬유보강재의 소요길이를 감소시킬 수 있으며, 셋째, 띠형 섬유보강재 자체의 표면마찰력에 더하여 후단부도 좁은 폭으로 접어서 세운 상태로 보강토체 내에 매립시키면 토압에도 불구하고 펼쳐지지 않아 여기에서 강력한 수동지지저항력이 발휘될 수 있도록 함으로써 보다 견고하고 안정성을 갖는 옹벽을 축조할 수 있는 보강토 옹벽 지지용 띠형 섬유보강재 및 이의 시공방법을 제공하는 데 있다.The present invention is a further improvement of the belt-shaped fiber reinforcement and the construction method according to the applicant of the present invention described above, the first object of the present invention, when the front end of the belt-shaped fiber reinforcement to be inserted into the reinforcement insert groove of the block possible In order to solve the technical and practical problems that it was difficult to form the depth of the reinforcement insert groove deep in the block by manufacturing a collapsible structure so that the narrow width (둘째), second, the band-shaped fiber reinforcement on the reinforcement soil It can reduce the length of the fiber reinforcement by reducing the back length of the fiber reinforcement by expanding the friction area of the fiber reinforcement without increasing the connection amount of the fiber reinforcement. Third, in addition to the surface friction of the strip-shaped fiber reinforcement itself, Folded in reinforcement soil with a narrow width and built up, it is not spread despite earth pressure, so that strong passive support resistance can be exerted here, so the reinforced fiber retaining wall supporting band-shaped fiber reinforcement can be built to make a stronger and stable retaining wall. And to provide a construction method thereof.

이와 같은 목적을 달성하기 위하여 본 발명은 여러 개의 폴리에스테르 섬유 다발이 평행하게 배치되고, 그 외부에 폴리에틸렌 수지로 피복되며, 길이방향을 따라 접힘홈이 형성된 것에 있어서, 상기 접힘홈은 띠형 섬유보강재의 폭을 균일하게 등분하는 위치에 복수 열로 평행하게 형성되는 보강토 옹벽 지지용 띠형 섬유보강재를 제공한다.In order to achieve the above object, the present invention has a plurality of polyester fiber bundles are arranged in parallel, the outside is covered with a polyethylene resin, the folding grooves are formed along the longitudinal direction, the folding grooves of the band-shaped fiber reinforcement Provided is a strip-shaped fiber reinforcement for reinforcing soil retaining wall support formed in parallel in a plurality of rows at positions equally divided in width.

본 발명에서 접힘홈은 띠형 섬유보강재의 일면 또는 양면에 형성될 수 있으며 양면에 형성되는 경우에는 교호(交互)로 형성되어 접힌 상태가 자연스럽게 유지 될 수 있도록 한다.In the present invention, the folded groove may be formed on one side or both sides of the strip-shaped fiber reinforcement, and when formed on both sides, it is formed alternately (交互) so that the folded state can be naturally maintained.

본 발명은 또, 상기한 띠형 섬유보강재의 선단을 접힘홈을 따라 다중으로 접어 옹벽을 형성하는 블록의 보강재 삽입홈에 끼우고 다른 부분은 보강토체 위에 펼친 상태로 매설하는 띠형 섬유보강재의 시공방법을 제공한다.The present invention also provides a method of constructing a band-shaped fiber reinforcement to be inserted into the reinforcement insertion groove of the block forming the retaining wall by folding the tip of the band-shaped fiber reinforcement in multiple times along the folding groove, and the other part is embedded on the reinforcement body. to provide.

본 발명의 시공방법에서 띠형 섬유보강재는 'N'자 또는 'M'자 형태로 접어서 블록의 보강재 삽입홈에 끼우며, 이 띠형 섬유보강재는 각 블록에 개별적으로 설치되거나 인접하는 블록과 연계하여 설치될 수 있으며, 지그재그식으로 연속되게 설치될 수 있고, 지그재그식으로 연속되게 설치되는 경우 섬유보강재의 후단부는 선단부에서와 동일하게 다중으로 접혀 반원형으로 세워진 상태에서 보강토체 내부에 매립되어 수동지지저항력을 발휘할 수 있도록 한다.In the construction method of the present invention, the strip-shaped fiber reinforcement is folded into an 'N' or 'M' shape and inserted into the reinforcement insert groove of the block, and the strip-shaped fiber reinforcement is installed in each block individually or in connection with an adjacent block. It can be installed continuously in a zigzag manner, and in the case of being installed in a zigzag continuous manner, the rear end of the fiber reinforcement is folded in the same way as in the front end and embedded in the reinforcement soil in the state of being erected in a semicircular shape to provide passive bearing resistance. Make it work.

이하, 본 발명을 한정하지 않는 바람직한 실시 예들을 첨부된 도면에 의하여 상세히 설명하기로 한다.Hereinafter, with reference to the accompanying drawings, preferred embodiments that do not limit the present invention will be described in detail.

본 발명의 설명에 있어서, 도 1에 도시된 종래의 기술과 동일 구성요소에 대하여는 동일부호를 사용하여 설명한다.In the description of the present invention, the same components as those in the prior art shown in Fig. 1 will be described with the same reference numerals.

도 2는 본 발명의 제1실시 예에 의한 띠형 섬유보강재의 사시도이고, 도 3은 도 2에 도시된 띠형 섬유보강재의 접힌 상태 사시도로서, 본 실시 예에 의한 띠형 섬유보강재(10)는 여러 개의 폴리에스테르 섬유 다발(12)이 평행하게 배치되고, 그 외부에 폴리에틸렌 수지(14)로 피복되며, 길이방향을 따라 접힘홈(16)이 형성되되, 이 접힘홈(16)은 띠형 섬유보강재(10)의 폭을 균일하게 3등분 하는 위치에 2열로 평행하게 형성되어 있다.Figure 2 is a perspective view of the belt-shaped fiber reinforcement according to the first embodiment of the present invention, Figure 3 is a perspective view of the folded state of the belt-shaped fiber reinforcement shown in Figure 2, the belt-shaped fiber reinforcement 10 according to this embodiment The polyester fiber bundles 12 are arranged in parallel and covered with polyethylene resin 14 on the outside thereof, and a folding groove 16 is formed along the longitudinal direction, and the folding groove 16 is a band-shaped fiber reinforcement 10 It is formed in parallel in two rows at the position which equally divides the width of) into three equal parts.

본 실시 예의 띠형 섬유보강재(10)는 2개의 접힘홈(16)이 띠형 섬유보강재(10)의 전,후 양면에 동일한 깊이로 형성되어 있어 어느 방향으로도 자유롭게 접힐 수 있도록 되어 있으며, 이 접힘홈(16)을 경계로 하여 도 3에 도시된 바와 같이 1/3의 폭으로 접혀진 상태로 블록의 보강재 삽입홈에 끼워지게 되는 것이다.In the present embodiment, the strip-shaped fiber reinforcing material 10 has two folding grooves 16 formed at the same depth on both sides of the strip-shaped fiber reinforcing material 10, so that they can be folded freely in any direction. It is to be fitted into the reinforcement insertion groove of the block in a state folded into a width of 1/3 as shown in Figure 3 with the boundary (16).

본 실시 예에서 상기 띠형 섬유보강재(10)의 폭은 75mm이고, 두께는 3mm이며, 접힘홈(16)이 형성된 부분의 연결살(17)은 1mm이내의 두께로 이루어져 있어 도 2에 도시된 바와 같이 3중으로 접을 경우 섬유보강재의 폭(상하 높이)은 25mm를 넘지 않게 된다. 따라서, 블록의 보강재 삽입홈의 깊이를 30mm이내로 제작하여도 되는 것이며, 이에 의해 블록의 보강재 삽입홈의 깊이를 30mm이상으로 형성하는 것이 현재의 기술로는 쉽지 않고 불량률도 많이 나오는 현실적인 측면을 십분 반영할 수 있다.In the present embodiment, the width of the strip-shaped fiber stiffener 10 is 75mm, the thickness is 3mm, the connecting teeth 17 of the portion formed with the folding groove 16 is made of a thickness within 1mm as shown in Figure 2 When folded in triple, the width (up and down height) of the fiber reinforcement does not exceed 25mm. Therefore, the depth of the reinforcement insertion groove of the block may be made within 30 mm, thereby forming the depth of the reinforcement insertion groove of the block to 30 mm or more reflects a realistic aspect that is not easy with the current technology and the defect rate is also high. can do.

즉, 본 출원인의 선출원발명에 있어서는 본 실시 예와 동일 폭(75mm)의 띠형 섬유보강재(10)의 경우 절반의 폭(35mm)으로 접혀지게 됨으로써 블록의 보강재 삽입홈을 최소한 35mm 이상으로 형성하여야 했었으므로 기술적으로 어려운 문제점이 있었던 점을 감안한다면, 본 발명은 이러한 문제점을 해소할 수 있는 장점을 갖는다.That is, in the applicant's prior application, the band-shaped fiber reinforcement 10 having the same width (75 mm) as the present embodiment was folded at half width (35 mm), so that the reinforcement insertion groove of the block had to be formed at least 35 mm or more. Therefore, in view of the technically difficult problem, the present invention has the advantage that can solve this problem.

도 4는 본 발명의 제2실시 예에 의한 띠형 섬유보강재의 사시도이고, 도 5는 도 4에 도시된 띠형 섬유보강재의 접힌 상태 사시도로서, 본 실시 예의 띠형 섬유보강재도 2개의 접힘홈(16)이 띠형 섬유보강재(10)의 폭을 균일하게 3등분 하는 위치에 2열로 평행하게 형성되어 있으나, 접힘홈(16)이 각각 전면과 후면에 교호로 형성된 차이점이 있다.Figure 4 is a perspective view of the belt-shaped fiber reinforcement according to the second embodiment of the present invention, Figure 5 is a perspective view of the folded state of the belt-shaped fiber reinforcement shown in Figure 4, the belt-shaped fiber reinforcement of the present embodiment also two folded grooves (16) Although the strip-shaped fiber reinforcement 10 is formed in parallel in two rows at a position where the width is uniformly divided into three, there is a difference that the folding grooves 16 are alternately formed on the front and the rear, respectively.

본 실시 예의 띠형 섬유보강재(10)는 상기한 제1실시 예의 것과 비교할 때 접힘홈(16)이 전후면에 교호로 형성되어 있어서 'N'자로 접을 때보다 더 자연스럽게 접힐 수 있다는 차이점이 있다.Compared to that of the first embodiment, the strip-shaped fiber reinforcement 10 of the present embodiment has a difference in that the folding grooves 16 are alternately formed on the front and rear surfaces so that they can be folded more naturally than when folded in an 'N' shape.

도 6은 본 발명의 제3실시 예에 의한 띠형 섬유보강재의 사시도이고, 도 7은 도 6에 도시된 띠형 섬유보강재의 접힌 상태 사시도로서, 본 실시 예에서는 접힘홈(16)이 띠형 섬유보강재(10)의 폭을 균일하게 4등분 하는 위치에 3열로 평행하게 형성되어 있다.Figure 6 is a perspective view of the belt-shaped fiber reinforcement according to the third embodiment of the present invention, Figure 7 is a perspective view of the folded state of the belt-shaped fiber reinforcement shown in Figure 6, in this embodiment the folded groove 16 is a belt-shaped fiber reinforcement ( It is formed in parallel in three rows at the position which evenly divides the width of 10).

본 실시 예의 띠형 섬유보강재(10)는 3개의 접힘홈(16)이 띠형 섬유보강재(10)의 전,후 양면에 동일한 깊이로 형성되어 있어 어느 방향으로도 자유롭게 접힐 수 있도록 되어 있으며, 이 접힘홈(16)을 경계로 하여 도 7에 도시된 바와 같이 1/4의 폭으로 접혀진 상태로 블록의 보강재 삽입홈에 끼워지게 되는 것이다.In the present embodiment, the strip-shaped fiber reinforcement 10 has three folding grooves 16 formed at the same depth on both sides of the strip-shaped fiber reinforcement 10 so as to be freely folded in any direction. As shown in FIG. 7, it is fitted to the reinforcing member insertion groove of the block in a folded state of 1/4 as shown in FIG. 7.

본 실시 예에서 상기 띠형 섬유보강재(10)의 폭은 100mm이고, 두께는 3mm이며, 접힘홈(16)이 형성된 부분의 연결살(17)은 1mm이내의 두께로 이루어져 있어 도 7에 도시된 바와 같이 4중으로 접을 경우 보강재의 폭(상하 높이)은 25mm를 넘지 않게 된다. 따라서, 띠형 섬유보강재의 수량을 최소화하면서도 띠형 섬유보강재의 폭을 증대시킬 수 있어 섬유보강재의 표면마찰력을 증대시킬 수 있으며, 이로 인해 띠형 섬유보강재의 설치길이를 감소시킬 수 있어 띠형 섬유보강재의 설치 수요량을 절감할 수 있다.In the present embodiment, the band-shaped fiber reinforcement 10 has a width of 100 mm, a thickness of 3 mm, and the connecting rib 17 of the portion in which the folding grooves 16 are formed has a thickness within 1 mm, as shown in FIG. 7. When folded in four, the width (up and down height) of the reinforcement does not exceed 25mm. Therefore, it is possible to increase the width of the strip-shaped fiber reinforcement while minimizing the quantity of the strip-shaped fiber reinforcement, thereby increasing the surface friction of the fiber reinforcing material. Can reduce the cost.

도 8은 본 발명의 제4실시 예에 의한 띠형 섬유보강재의 사시도이고, 도 9는 도 8에 도시된 띠형 섬유보강재의 접힌 상태 사시도로서, 본 실시 예의 띠형 섬유보강재도 3개의 접힘홈(16)이 띠형 섬유보강재(10)의 폭을 균일하게 4등분 하는 위치에 3열로 평행하게 형성되어 있으나, 접힘홈(16)이 각각 전면과 후면에 교호로 형성된 차이점이 있다.8 is a perspective view of the belt-shaped fiber reinforcement according to the fourth embodiment of the present invention, Figure 9 is a perspective view of the folded state of the belt-shaped fiber reinforcement shown in Figure 8, the belt-shaped fiber reinforcement of the present embodiment three folding grooves 16 Although the strip-shaped fiber reinforcing material 10 is formed in parallel in three rows at a position equally divided into four, there is a difference that the folding grooves 16 are alternately formed on the front and the rear, respectively.

즉, 본 실시 예의 띠형 섬유보강재(10)는 중간 부분에는 후면에 접힘홈(16)이 형성되어 있고, 이 중간 부분의 접힘홈(16)을 경계로 양측 전면에 각각 하나씩의 접힘홈(16)이 더 형성되어 있다.That is, the strip-shaped fiber reinforcement 10 of the present embodiment has a folding groove 16 is formed on the rear side in the middle portion, each of the folding grooves 16 on both front sides of the folding groove 16 of the middle portion. Is further formed.

본 실시 예의 띠형 섬유보강재(10)는 상기한 제3실시 예의 것과 비교할 때 접힘홈(16)이 전후면에 교호로 형성되어 있어서 'M'자로 접을 때보다 더 자연스럽게 접힐 수 있다는 차이점이 있다.Compared with the above-described third embodiment, the strip-shaped fiber reinforcement 10 of the present embodiment has a difference in that the folding grooves 16 are alternately formed on the front and rear surfaces so that they can be folded more naturally than when folded in the letter 'M'.

본 실시 예의 띠형 섬유보강재(10)의 폭은 제3실시 예에서와 마찬가지로 100mm이고, 두께는 3mm이며, 접힘홈(16)이 형성된 부분의 연결살(17)은 1mm이내의 두께로 이루어져 있어 도 9에 도시된 바와 같이 4중으로 접을 경우 띠형 섬유보강재의 폭(상하 높이)은 25mm를 넘지 않게 된다.The width of the strip-shaped fiber reinforcement 10 of the present embodiment is 100mm, the thickness is 3mm as in the third embodiment, and the connecting teeth 17 of the portion where the folding grooves 16 are formed have a thickness of 1 mm or less. As shown in 9, when folded in four, the width (up and down height) of the strip-shaped fiber reinforcement does not exceed 25 mm.

상기와 같이 구성된 본 발명의 띠형 섬유보강재를 시공하는 방법에 대하여 설명하기로 한다.The method of constructing the strip-shaped fiber reinforcement of the present invention configured as described above will be described.

도 10은 본 발명에 의한 띠형 섬유보강재의 시공상태 사시도로서, 위에서 설명한 바와 같은 본 발명에 의한 띠형 섬유보강재(10)의 선단부(F)를 접힘홈(16)을 따라 다중으로 접어 옹벽을 형성하는 블록(20)의 보강재 삽입홈(22)에 끼우고 다른 부분은 보강토체(30) 위에 펼친 상태로 매설하면 된다.10 is a perspective view of a construction state of the strip-shaped fiber reinforcement according to the present invention, wherein the front end portion (F) of the strip-shaped fiber reinforcement 10 according to the present invention as described above is folded in multiple directions along the folding grooves 16 to form the retaining wall. Insert into the reinforcing material insertion groove 22 of the block 20, and other parts may be buried in the expanded state on the reinforcement body (30).

본 발명에서 상기 띠형 섬유보강재(10)는 'N'자 형태로 접히거나 'M'자 형태로 접혀서 블록(20)의 보강재 삽입홈(22)에 끼워지게 되므로 이 부분에서 띠형 섬유보강재(10)의 느즈러짐은 발생하지 않고, 띠형 섬유보강재(10)는 다중으로 접힌 상태이므로 블록에 보다 견고하게 연결될 수 있는 것이며, 보강재 삽입홈(22)에서 나온 띠형 섬유보강재(10)는 자체의 탄성에 의해 원래의 폭으로 벌어져 보강토체(30) 위에 깔리게 되는 것이다.In the present invention, the strip-shaped fiber reinforcement 10 is folded in the form of 'N' or 'M' shape to be inserted into the reinforcement insertion groove 22 of the block 20, so the strip-shaped fiber reinforcement (10) No loosening occurs, and the strip-shaped fiber reinforcement 10 can be more firmly connected to the block because it is in a multiple folded state, and the strip-shaped fiber reinforcement 10 from the reinforcement insertion groove 22 is formed by its elasticity. Spread to the original width is to be laid on the reinforcement soil (30).

본 발명의 시공방법에서 상기 띠형 섬유보강재(10)는 각각 일정한 길이로 절단하여 도 10의 좌측 하부에서와 같이 각 블록(20)에 개별적으로 설치할 수도 있으며, 도 10의 우측 상부에서와 같이 띠형 섬유보강재(10)를 절단하지 않고 하나의 띠형 섬유보강재를 사용하여 지그재그식으로 연속하여 설치할 수도 있다.In the construction method of the present invention, the strip-shaped fiber reinforcement 10 may be cut to a predetermined length, respectively, and may be individually installed in each block 20 as shown in the lower left of FIG. 10, or in the upper right of FIG. 10. It is also possible to install continuously in a zigzag fashion using one belt-shaped fiber reinforcement without cutting the reinforcement 10.

띠형 섬유보강재(10)가 연속하여 지그재그식으로 설치되는 경우 띠형 섬유보강재(10)의 후단부(R)는 선단부(F)에서와 동일하게 다중으로 접혀 반원형으로 세워진 상태에서 보강토체(30) 내부에 매립됨으로써 후단부(R)에서 수동지지저항력을 보유할 수 있도록 한다.When the strip-shaped fiber reinforcement 10 is continuously installed in a zigzag manner, the rear end portion R of the strip-shaped fiber reinforcement 10 is folded in the same manner as in the front end portion F to be folded in a semicircular shape, and then inside the reinforcement body 30. By being embedded in the rear end (R) to be able to retain the passive supporting resistance.

상기 띠형 섬유보강재(10)의 후단부(R)는 다중으로 접힌 상태이므로 보강토체의 다짐시에도 쓰러지지 않고 세워진 형태를 그대로 유지하게 되므로 수동지지저항력을 발휘하게 된다.Since the rear end portion (R) of the strip-shaped fiber reinforcement (10) is folded in multiple states, it does not fall down during compaction of the reinforcement soil, thus maintaining a standing shape as it is, thereby exhibiting passive supporting resistance.

도 11은 본 발명에 의한 띠형 섬유보강재의 또 다른 시공상태 사시도로서, 본 실시 예에서는 띠형 섬유보강재(10)의 선단부(F)가 좌우로 인접하는 2개 또는 그 이상의 블록에 형성된 보강재 삽입홈(22)에 동시에 연계하여 끼워진 것이며, 이 띠형 섬유보강재(10)는 도 11의 좌측 하부에 도시된 바와 같이 개별적으로 설치되거나 또는 도 11의 우측 상부에 도시된 바와 같이 지그재그식으로 연속하여 설치될 수 있다.11 is a perspective view of another construction state of the strip-shaped fiber reinforcement according to the present invention, in the present embodiment, the front end portion (F) of the strip-shaped fiber reinforcement 10 is formed in two or more blocks adjacent to the left and right (insertion grooves ( 22), the band-shaped fiber reinforcement 10 may be individually installed as shown in the lower left of FIG. 11, or may be continuously installed in a zigzag manner as shown in the upper right of FIG. have.

본 실시 예에 있어서도, 띠형 섬유보강재(10)가 연속하여 지그재그식으로 설치되는 경우 띠형 섬유보강재(10)의 후단부(R)는 선단부(F)에서와 동일하게 다중으로 접혀 반원형으로 세워진 상태에서 보강토체(30) 내부에 매립됨으로써 후단부(R)에서 수동지지저항력을 보유할 수 있도록 한다.Also in this embodiment, when the strip-shaped fiber stiffener 10 is continuously installed in a zigzag manner, the rear end portion R of the strip-shaped fiber stiffener 10 is folded in the same manner as in the front end portion F and erected in a semicircular shape. By being embedded in the reinforcement body 30, it is possible to retain the passive supporting resistance at the rear end (R).

상기한 본 발명의 실시 예들은 본 발명의 권리범위를 한정하는 것이 아니고 단지 본 발명의 설명과 이해를 위하여 열거된 것에 불과하며, 본 발명의 기술사상을 벗어나지 않고도 본 발명이 속한 분야에서 통상의 당업자에 의해 다양한 변형과 모방이 가능함은 물론이며, 이와 같은 모방과 변형은 이하에 기재되는 본 발명의 권리범위에 속함이 자명하다. The above embodiments of the present invention are not limited to the scope of the present invention, but are merely listed for the purpose of explanation and understanding of the present invention, and those skilled in the art to which the present invention pertains without departing from the spirit of the present invention. Of course, various modifications and imitations are possible, and such imitations and variations are obviously belonging to the scope of the present invention described below.

이상 설명한 바와 같이 본 발명은 앵커와 앵커 핀 없이 띠형 섬유보강재의 선단부를 좁은 폭(幅)으로 다중(多重)으로 접어 블록에 형성된 보강재 삽입홈에 직접 걸어줌으로써 확고한 연결상태를 이룰 수 있으므로 앵커나 앵커 핀과 같은 부자재의 소비를 줄임과 아울러 연결작업의 단순화를 도모할 수 있음과 아울러, 띠형 섬유보강재 선단부의 느즈러짐이 발생하지 않고 응력이 집중되지 않아 옹벽 면의 시공 하자가 발생하지 않는다. 또, 본 발명은 보강토체 내에 매립되는 띠형 섬유보강재는 원래의 폭(幅)으로 펼쳐진 상태로 설치되므로 띠형 섬유보강재의 연결수량을 증가시키지 않고도 보강토체와의 마찰지지력을 향상시킬 수 있어 띠형 섬유보강재의 소요량을 절감할 수 있는 경제성이 있으며, 띠형 섬유보강재의 후단부도 다중으로 접힌 상태로 반원형으로 세워지므로 토압을 받더라도 세워진 상태가 눌리지 않으므로 앞쪽의 표면마찰력에 부가하여 수동지지저항력을 발휘할 수 있어 보다 견고하고 안정성을 갖는 보강토 옹벽을 축조할 수 있다.As described above, the present invention can achieve a firm connection state by directly walking the reinforcement insertion groove formed in the block by folding the tip portion of the strip-shaped fiber reinforcement in a narrow width without multiple anchors and anchor pins, so that the anchor or anchor In addition to reducing the consumption of subsidiary materials such as pins, the connection can be simplified, and the loosening of the tip of the strip-shaped fiber reinforcement does not occur and the stress is not concentrated, thus preventing the construction of the retaining wall. In addition, the present invention is because the belt-shaped fiber reinforcement embedded in the reinforcement soil is installed in the unfolded state of the original width (幅), so that the frictional support with the reinforcement soil can be improved without increasing the number of connections of the belt-shaped fiber reinforcement, so Since the rear end of the strip-shaped fiber reinforcement is erected in a semicircle with multiple folded states, the erected state is not pressed even when subjected to earth pressure, so that it can exhibit passive bearing resistance in addition to the front surface friction force. It is possible to build a reinforced soil retaining wall with stability.

Claims (13)

여러 개의 폴리에스테르 섬유 다발이 평행하게 배치되고, 그 외부에 폴리에틸렌 수지로 피복되며, 길이방향을 따라 접힘홈이 형성된 것에 있어서,A plurality of polyester fiber bundles are arranged in parallel, coated with a polyethylene resin on the outside thereof, folded grooves formed along the longitudinal direction, 상기 접힘홈(16)은 띠형 섬유보강재(10)의 폭을 균일하게 등분하는 위치에 복수 열로 평행하게 형성되는 것을 특징으로 하는 조립식 보강토 옹벽 지지용 띠형 섬유보강재.The folding grooves 16 are prefabricated reinforcing soil retaining wall support belt-shaped fiber reinforcement, characterized in that formed in parallel in a plurality of rows at a position equally divided the width of the band-shaped fiber reinforcement (10). 청구항 1에 있어서,The method according to claim 1, 상기 접힘홈(16)은 띠형 섬유보강재(10)의 일면에만 형성되는 것을 특징으로 하는 조립식 보강토 옹벽 지지용 띠형 섬유보강재.The folding groove (16) is a prefabricated reinforced soil retaining wall support belt-shaped fiber reinforcement, characterized in that formed on only one surface of the band-shaped fiber reinforcement (10). 청구항 1에 있어서,The method according to claim 1, 상기 접힘홈(16)은 띠형 섬유보강재(10)의 양면에 모두 형성되는 것을 특징으로 하는 조립식 보강토 옹벽 지지용 띠형 섬유보강재.The folding grooves 16 are prefabricated reinforcing soil retaining wall support belt-shaped fiber reinforcement, characterized in that formed on both sides of the band-shaped fiber reinforcement (10). 청구항 3에 있어서,The method according to claim 3, 상기 접힘홈(16)은 띠형 섬유보강재(10)의 양면에 교호(交互)로 형성되는 것을 특징으로 하는 모두 조립식 보강토 옹벽 지지용 띠형 섬유보강재.The folding grooves 16 are all prefabricated reinforced soil retaining wall supporting band-shaped fiber reinforcement, characterized in that formed on both sides of the strip-shaped fiber reinforcement (10). 청구항 1 내지 청구항 4항 중의 어느 한 항에 의한 띠형 섬유보강재(10)의 선단부(F)를 접힘홈(16)을 따라 다중으로 접어 옹벽을 형성하는 블록(20)의 보강재 삽입홈(22)에 끼우고 다른 부분은 보강토체(30) 위에 펼친 상태로 매설하는 것을 특징으로 하는 보강토 옹벽 지지용 띠형 섬유보강재의 시공방법.The front end portion F of the strip-shaped fiber stiffener 10 according to any one of claims 1 to 4 is folded into the stiffener insertion groove 22 of the block 20 to form a retaining wall by multiple folding along the fold groove 16. Construction method of the reinforcement soil retaining wall support belt-shaped fiber reinforcement, characterized in that the buried in the expanded state on the reinforcement soil body 30. 청구항 5의 시공방법에 있어서,In the construction method of claim 5, 상기 띠형 섬유보강재(10)는 'N'자 형태로 접어서 블록(20)의 보강재 삽입홈(22)에 끼우는 것을 특징으로 하는 보강토 옹벽 지지용 띠형 섬유보강재의 시공방법.The band-shaped fiber reinforcement 10 is a method of constructing a band-shaped fiber reinforcement for supporting a retaining wall retaining wall, characterized in that folded in the 'N' shape and inserted into the reinforcement insert groove 22 of the block (20). 청구항 5의 시공방법에 있어서,In the construction method of claim 5, 상기 띠형 섬유보강재(10)는 'M'자 형태로 접어서 블록(20)의 보강재 삽입홈(22)에 끼우는 것을 특징으로 하는 보강토 옹벽 지지용 띠형 섬유보강재의 시공방법.The band-shaped fiber reinforcement 10 is folded in the 'M' shape construction method of the band-shaped fiber reinforcement for supporting the retaining wall retaining wall, characterized in that inserted into the reinforcement insert groove 22 of the block (20). 청구항 5의 시공방법에 있어서,In the construction method of claim 5, 상기 띠형 섬유보강재(10)는 각 블록(20)에 개별적으로 설치되는 것을 특징으로 하는 보강토 옹벽 지지용 띠형 섬유보강재의 시공방법.The band-shaped fiber reinforcement 10 is a method of constructing a band-shaped fiber reinforcement for reinforcement earth retaining wall support, characterized in that installed separately in each block (20). 청구항 5의 시공방법에 있어서,In the construction method of claim 5, 상기 띠형 섬유보강재(10)는 인접하는 블록과 연계하여 설치되는 것을 특징으로 하는 보강토 옹벽 지지용 띠형 섬유보강재의 시공방법.The band-shaped fiber reinforcement 10 is a method of constructing a band-shaped fiber reinforcement for reinforcing soil retaining wall support, characterized in that is installed in connection with the adjacent block. 청구항 8의 시공방법에 있어서,In the construction method of claim 8, 상기 띠형 섬유보강재(10)는 지그재그식으로 연속되게 설치되는 것을 특징으로 하는 보강토 옹벽 지지용 띠형 섬유보강재의 시공방법.The band-shaped fiber reinforcement 10 is a method of constructing a band-shaped fiber reinforcement for reinforcing soil retaining wall support, characterized in that the zigzag continuous installation. 청구항 10에 있어서,The method according to claim 10, 상기 띠형 섬유보강재(10)의 후단부(R)는 선단부(F)에서와 동일하게 다중으로 접혀 반원형으로 세워진 상태에서 보강토체(30) 내부에 매립되는 것을 특징으로 하는 보강토 옹벽 지지용 띠형 섬유보강재의 시공방법.The rear end portion (R) of the strip-shaped fiber reinforcement (10) is folded in the same way as in the front end portion (F), the reinforcement soil retaining wall supporting band-shaped fiber reinforcement, characterized in that the buried inside the reinforcement soil (30). Construction method. 청구항 9의 시공방법에 있어서,In the construction method of claim 9, 상기 띠형 섬유보강재(10)는 지그재그식으로 연속되게 설치되는 것을 특징으로 하는 보강토 옹벽 지지용 띠형 섬유보강재의 시공방법.The band-shaped fiber reinforcement 10 is a method of constructing a band-shaped fiber reinforcement for reinforcing soil retaining wall support, characterized in that the zigzag continuous installation. 청구항 12에 있어서,The method according to claim 12, 상기 띠형 섬유보강재(10)의 후단부(R)는 선단부(F)에서와 동일하게 다중으로 접혀 반원형으로 세워진 상태에서 보강토체(30) 내부에 매립되는 것을 특징으로 하는 보강토 옹벽 지지용 띠형 섬유보강재의 시공방법.The rear end portion (R) of the strip-shaped fiber reinforcement (10) is folded in the same way as in the front end portion (F), the reinforcement soil retaining wall supporting band-shaped fiber reinforcement, characterized in that the buried inside the reinforcement soil (30). Construction method.
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