KR930001531Y1 - Retaining wall structure - Google Patents

Retaining wall structure Download PDF

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Publication number
KR930001531Y1
KR930001531Y1 KR2019890012453U KR890012453U KR930001531Y1 KR 930001531 Y1 KR930001531 Y1 KR 930001531Y1 KR 2019890012453 U KR2019890012453 U KR 2019890012453U KR 890012453 U KR890012453 U KR 890012453U KR 930001531 Y1 KR930001531 Y1 KR 930001531Y1
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Prior art keywords
soil
reinforcement
retaining wall
construction
backfilling
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KR2019890012453U
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Korean (ko)
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KR910004402U (en
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김준석
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주식회사대우
김우중
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/02Retaining or protecting walls
    • E02D29/0225Retaining or protecting walls comprising retention means in the backfill
    • E02D29/0241Retaining or protecting walls comprising retention means in the backfill the retention means being reinforced earth elements
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00Materials
    • E02D2300/0085Geotextiles
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00Miscellaneous
    • E02D2600/40Miscellaneous comprising stabilising 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

내용 없음.No content.

Description

보강토 옹벽의 보강 구조Reinforcement structure of retaining wall

제1도는 본 고안의 사시도.1 is a perspective view of the present invention.

제2도는 본 고안의 사용 상태 사시도.2 is a perspective view of a state of use of the present invention.

제3도는 제2도의 측 단면도.3 is a side cross-sectional view of FIG.

제4도는 종래 단면도.4 is a conventional cross-sectional view.

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

10 : 보강재 11 : 토목섬유 튜브10: reinforcing material 11: geotextile tube

12 : 사질토12: sandy soil

본 고안은 보강토 옹벽에 있어서의 보강구조에 관한 것으로서, 특히 스트립형 보강재의 주위에 합성섬유계통으로 통수성이 좋은 토목섬유 튜브(Geotextile)를 씌우고 그 내부에 마찰력을 유발할 수 있는 사질토를 채워 시공함으로써, 뒤채움 흙과의 큰 접촉면적으로 큰 마찰력을 유발케하여 일반토사를 뒤채움흙으로 사용하더라도 견고하게 옹벽을 축조할 수 있도록 하고 수명의 연장은 물론 시공을 용이하게 할 수 있도록 고안된 것이다. 잘알려진 바와같이, 보강토 공법은 흙을 주체로한 성토층속에 인장력이 큰 스트립 형태의 보강재를 일정한 간격으로 매설하여 하나의 새로운 복합 구조체를 형성시키는 공법으로서, 흙의 단점인 강도와 변형성을 극복하여 새로운 개념으로 토류 구조물을 건설할 수 있는 공법으로 평지보다는 산악이 많은 우리나라에 적용하기에 적합한 공법이며, 시공 및 그 속도가 다른 공법에 비해 상당히 용이하고 빠르다는 것과 경제적으로 매우 유리하다는데에 그 특징이 있어 이 공법에 대한 활발한 연구가 계속되고 있다.The present invention relates to a reinforcing structure in a reinforcing soil retaining wall. In particular, a geotextile tube having a good water permeability through a synthetic fiber system is put around a strip-shaped reinforcing material and filled with sand that can cause friction in the inside In addition, it is designed to make the retaining wall firmly and to extend the service life and to facilitate the construction even if the general soil is used as the backfilling soil by causing a large friction area with the large contact area with the backfilling soil. As is well known, the reinforcement soil method is a method to form a new composite structure by embedding strip-like reinforcement with high tensile force at regular intervals in the soil layer mainly composed of soil, and overcomes the strength and deformation properties of the soil. It is a construction method that can construct earth structure with new concept, and it is suitable for the mountainous country rather than plain, and its construction and its speed are considerably easier and faster than other construction methods and economically very advantageous. Because of this, active research on this method is continuing.

이러한 보강토 공법을 이용하여 옹벽을 축조함에 있어서, 종래에는 뒤채움흙과 마찰력을 유발하여 전면판에 가해지는 토압에 저항 하도록 전면판의 후부에 연결되는 보강구조물 제4도와 같이 단순한 스트립 형태의 보강재(50)주위에 사질토(51)를 형성시킨후 뒤채움흙을 포설정리하여 다지는 수단으로 옹벽을 축조하는 것이 통례적이었다. 그러나 상기와 같은 수단으로 옹벽을 축조하는 경우에는 다음과 같은 문제점이 지적되고 있다. 즉, 보강재는 뒤채움흙과의 마찰력, 연장강도, 내구성이 좋아야 하는데, 종래에는 단순한 스트립 형태의 보강재를 사용하였는바, 뒤채움 흙과의 마찰력을 증대시키기 위해서는 보강재 주위에 사질토를 형성시켜야 하기 때문에 시공에 있어서 뒤채움흙을 쌓하 가면서 보강재를 깔고 그 주위에 사질토를 형성시키는 공정을 반복적으로 행하여야 함으로써 그 공정이 번거롭고 작업효율이 극히 저하됨은 물론 보강재 주위에 형성된 사질토가 뒤채움흙의 포설시 흩어지기 쉬우며 이에 따른 마찰력이 저하되어 견고한 시공이 이루어지지 않게 되는 문제점을 내재하고 있었다.In constructing the retaining wall using the reinforcement earth method, conventionally, a strip-shaped reinforcement like the fourth reinforcement structure connected to the rear part of the front plate to induce friction with the backfill soil and resist the earth pressure applied to the front plate ( 50) It was customary to build retaining walls by means of compacting the backfill soil after forming sandy soil 51 around it. However, the following problems are pointed out when the retaining wall is constructed by the above means. In other words, the reinforcement should have good frictional strength, extension strength and durability with the backfilled soil. In the past, simple reinforcement in the form of a strip was used. In order to increase the frictional force with the backfilled soil, sandy soil should be formed around the reinforcement. In the construction process, it is necessary to repeatedly carry out the process of laying up reinforcement while forming backfilling soil and forming sandy soil around it, which makes the process cumbersome and the work efficiency is extremely reduced, and the sandy soil formed around the reinforcing material is scattered when laying up the backfilling soil. There is a problem that the easy construction is not easy to be made because the friction force is lowered accordingly.

또한, 보강토 공법에 있어서는 뒤채움흙이 가장 중요한 구성재료인데, 종래와 같은 스트립형태의 보강재를 사용하는 경우 큰 마찰력을 유발할 수 있는 양질의 뒤채움 흙을 필요로 하기 때문에, 공사 현장 주변에 양질의 뒤채움흙이 없을때에는 외부지역의 원 거리에서 운반하여 사용하여야 하는바, 운반 경비가 크게 발생하여 경제적으로 많은 불리함을 감수해야 한다는 문제점을 안고 있었다. 따라서 본 고안자는 상기와 같은 종래 보강토 공법의 보강구조가 시공 및 그 속도가 용이하고 빠르며 경제적으로 매우 유리하다는 보강토 공법의 특징을 상실하고 있다는데에 인식하여 본 고안의 보강구조를 안출하게 된것으로서, 그 특징은 기존의 스트립형 보강재 주위에 합성 섬유 계통으로 통수성이 좋은 토목 섬유로 씌우고 그 내부에 마찰력을 유발할 수 있는 사질토를 채워 시공토록 함으로써, 뒤채움 흙과의 접촉면을 크게하며 이에 따른 마찰력을 저항 효과를 높혀 견고한 시공이 되도록 함은 물론 뒤채움흙의 토양질에 따라 크게 영향을 받지 않으면 시공을 용이하게하고 수명의 연장효과를 얻고자 하는데 그 목적이 있는 것이다.In addition, the backfilling soil is the most important component in the reinforcement soil method. When using a strip-like reinforcement, the backfilling soil requires a good backfilling soil that can cause a large friction force. When there is no backfilling soil, it has to be transported and used at a long distance from an outside area, and it has a problem in that a lot of transportation costs are generated and economical disadvantages have to be taken. Therefore, the present inventors recognize that the reinforcement structure of the conventional reinforcement earth method as described above loses the characteristics of the reinforcement earth method that construction and its speed are easy, fast, and economically very advantageous, and thus the reinforcement structure of the present invention is devised. Its characteristic is that synthetic fiber system is covered around the existing strip-shaped reinforcement with water-permeable geotextile and filled with sandy soil that can cause frictional force, thereby increasing the contact surface with backfilling soil and thus resisting frictional force. The purpose is to increase the effect to make a solid construction, as well as to facilitate the construction and extend the life if it is not significantly affected by the soil quality of the backfilling soil.

상기의 목적을 구체적으로 실현할 수 있는 본 고안을 첨부한 도면에 의거하여 상세히 설명하면 다음과 같다. 흙을 주체로 한 뒤채움흙속에 인장력이 큰 스트립 형태의 보강재를 일정한 간격으로 매설하여 하나의 토류구조물을 건설할 수 있는 보강토 공법의 보강 구조를 형성함에 있어서, 스트립 형태의 보강재(10) 주위에 합성섬유 계통으로 투수성이 좋은 토목섬유 튜브(11)를 씌우고 그 내부에 사질토(12)를 채워서 구성한 것으로서, 도면중 미설명부호 20은 전면판 21은 전면판(20의 타이스트립, 22는 고정볼트, 30은 뒤채움 흙이다. 이와같이 구성된 본 고안의 작용효과를 설명하면 다음과 같다.When described in detail based on the accompanying drawings of the present invention that can realize the above object in detail. In the reinforcement structure of the reinforcement earth method to construct a single earth structure by embedding strip-like reinforcement having a high tensile force at regular intervals in the backfill mainly composed of soil, around the strip-shaped reinforcement (10) It is composed of a synthetic fiber system with a good permeability of geosynthetic tube 11 and filled with sandy soil 12 in the inside, in the drawing, reference numeral 20 denotes the front plate 21 is the front plate (tie strip of 20, 22 is fixed) Bolt, 30 is the backfilling soil.

본 고안을 사용하여 보강토 공법에 의한 옹벽시공을 함에 있어서도 기초공사가 끝난뒤에 하부 전면판(20)을 조립하고 보강재(10)를 연결한후 뒤채움흙(30)을 포설정리하여 다지는 공정을 계속 반복적으로 쌓아올려 제2도 및 제3도와 같이 옹벽을 축조하게 되는데 보강재(10)의 연결시 상기의 보강재(10)의 주위에 토목 섬유 튜브(11)를 씌우고 그 내부에 사질토(12)를 채운후 종래와 같이 고정볼트(22)로써 전면판(20)의 타이 스트립(21)에 체결하여 시공하는 것이다.In the retaining wall construction by the reinforcement earth method using the present design, after the foundation work is completed, the lower front plate 20 is assembled, the reinforcing material 10 is connected, and the backfilling soil 30 is continued to be compacted. It is piled up repeatedly to build the retaining wall as shown in Figs. 2 and 3, when the reinforcing material 10 is connected, the geotextile tube 11 is covered around the reinforcing material 10 and the sandy soil 12 is filled therein. After the construction by fastening to the tie strip 21 of the front plate 20 as a fixing bolt 22 as in the prior art.

이와같이 시공된 상태에서는 토목섬유튜브(11)내의 사질토(12)와 보강재(10)가 접촉되어 마찰력을 발생시키며, 토목 섬유튜브(11)의 외주면이 뒤채움흙(30)과 접촉되어 짐으로써, 접촉면적이 종래에 비하여 보다 크게되고 이에 따른 마찰력이 증대되어 전면판(20)에 가해지는 토압을 감쇄시키기 때문에 축조된 옹벽이 견고하게되는 것이다.In the construction state as described above, the sandy soil 12 in the geosynthetic tube 11 and the reinforcement 10 are in contact with each other to generate frictional force, and the outer peripheral surface of the geosynthetic tube 11 is in contact with the backfilling soil 30, Since the contact area is larger than that of the related art and the friction force is increased to reduce the earth pressure applied to the front plate 20, the constructed retaining wall is firm.

또한, 상기와 같은 요인으로 인하여 큰 마찰력을 유발시킴으로써, 양질의 사질토를 뒤채움흙으로 사용하던 종래와는 달리 토양질이 종류에 따라 크게 영향을 받지 않게 되는바, 뒤채움흙(30)을 일반 토사를 사용하더라도 견고하게 옹벽을 축조할 수 있음은 물론이다. 그리고 시공 공정에 있어서도 종래와 같이 뒤채움흙(30)을 쌓은후 보강재(10)를 전면판(20)에 조립한 다음 그 보강재(10) 주위에 사질토를 형성시키지 않고 별도의 공정으로 토목섬유 튜브(11)가 씌워지고 그 내부로 사질토(12)가 채워진 보강재(10)를 전면판(20)에 연결한 다음, 다음 공정의 작업을 행하면되므로 분할 시공으로 인한 장점을 최대한으로 살릴 수 있는 것이며, 보강재(10)의 조립후 뒤채움흙(30)의 포설시에는 토목섬유튜브(11)내에 사질토(12)가 채워져 있는바, 흩어질 염려가 없이, 뒤채움흙(30)이 토목섬유튜브(11)의 외주면 가압하게 되어 보강재(10)와 사질토(12)사이에 큰 마찰력을 발생시켜 주는 결과가 됨으로써, 보강재(10)의 인장력을 증대시켜 주어 견고한 시공이 되게한다.In addition, by causing a large friction force due to the above factors, unlike the conventional use of high quality sandy soil as a backfilling soil, the soil quality is not significantly affected by the type, the backfilling soil (30) in general Of course, even if the soil is used, it is possible to build a retaining wall firmly. Also in the construction process, after stacking the backfilling soil 30 as in the prior art, the reinforcement 10 is assembled to the front plate 20, and then the geosynthetic tube in a separate process without forming sandy soil around the reinforcement 10 (11) is covered and the reinforcing material (10) filled with the sandy soil (12) therein is connected to the front plate 20, and then to perform the work of the next process will be able to take full advantage of the advantages of the split construction, When the backfilling soil 30 is installed after the reinforcing material 10 is assembled, the sandy soil 12 is filled in the geotextile tube 11, so that the backfilling soil 30 is not covered by the geotextile tube 11. Pressurize the outer circumferential surface of the) to result in a large friction force between the reinforcing material 10 and the sandy soil 12, thereby increasing the tensile force of the reinforcing material 10 to be a solid construction.

이상에서와, 같이 본 고안에 의하면 보강재의 주위에 토목섬유튜브를 씌운후 그 내부에 사질토를 채워 보강토 공법의 보강구조로 사용함으로써, 견고한 시공성 및 뒤채움 흙의 선택폭이 넓어짐은 물론 그 수명을 연장시킬 수 있는 매우 유용한 고안인 것이다.As described above, according to the present invention, by covering the geosynthetic tube around the reinforcement material and filling the sandy soil therein to use it as a reinforcement structure of the reinforcement soil method, the rigid construction properties and wider selection of the backfilling soil, as well as its lifespan It is a very useful design that can be extended.

Claims (1)

전면판(20)후측의 뒤채움흙(30)속에 일정한 간격으로 매설되는 다수의 보강재(10)를 결합하여 보강토 공법의 보강구조를 구성함에 있어서 상기 보강재(10)의 주위에 투수성이 좋은 토목섬유튜브(11)를 씌우고 그 내부에 사질토(12)를 채워서 됨을 특징으로 하는 보강토 옹벽의 보강구조.Civil engineering with good water permeability around the reinforcement 10 in constructing a reinforcement structure of the reinforcement method by combining a plurality of reinforcement 10 embedded at regular intervals in the back-filling soil (30) of the rear side of the front plate (20) Reinforcing structure of the reinforcement soil retaining wall, characterized in that the covering the fibrous tube (11) and filling the sandy soil 12 therein.
KR2019890012453U 1989-08-26 1989-08-26 Retaining wall structure KR930001531Y1 (en)

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KR930001531Y1 true KR930001531Y1 (en) 1993-03-30

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