KR101187965B1 - A lattice girder for tunnel construction - Google Patents

A lattice girder for tunnel construction Download PDF

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Publication number
KR101187965B1
KR101187965B1 KR1020110045692A KR20110045692A KR101187965B1 KR 101187965 B1 KR101187965 B1 KR 101187965B1 KR 1020110045692 A KR1020110045692 A KR 1020110045692A KR 20110045692 A KR20110045692 A KR 20110045692A KR 101187965 B1 KR101187965 B1 KR 101187965B1
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South Korea
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bar
fixing plate
grid
tunnel
reinforcing
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KR1020110045692A
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Korean (ko)
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진명구
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진명구
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/14—Lining predominantly with metal
    • E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
    • E21D11/20—Special cross- sections, e.g. corrugated
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/02—Non-telescopic props
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/50—Component parts or details of props
    • E21D15/502—Prop bodies characterised by their shape, e.g. of specified cross-section

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)

Abstract

PURPOSE: A lattice girder for tunnel construction with a stiffener is provided to remarkably improve fastening force and durability by installing a stiffener on the center of a fixing plate. CONSTITUTION: A lattice girder(100) for tunnel construction with a stiffener comprises a base frame(10), a first upper steel bar(12), second lower steel bars(12a), a fixing plate(20), a stiffener(30), and couplers. The fixing plate is attached to the steel bars and maintains the intervals of the steel bars. The stiffener is inserted into a hole(22) formed in the fixing plate and is welded to the fixing plate. The couplers couple the steel bars to the outline of the fixing plate.

Description

보강대를 가지는 터널공사용 격자지보{A lattice girder for tunnel construction}A lattice girder for tunnel construction with reinforcement

본 발명은 보강대를 가지는 터널공사용 격자지보에 관한 것으로서, 보다 상세히는 스틸바의 각격을 유지시키면서 견고하게 고정시키는 고정판을 가진 격자지보에 있어서, 상기 고정판을 더욱 강력하게 고정시킬 수 있는 보강대를 가지는 터널공사용 격자지보에 관한 것이다.
The present invention relates to a grating support for tunnel construction having a reinforcing bar, and more particularly, in a grating support having a fixing plate for firmly fixing while maintaining the angle of the steel bar, the tunnel having a reinforcing table for fixing the fixing plate more powerfully It relates to lattice support for construction.

일반적으로, 격자지보(Lattice girder)는 터널을 시공할 때 지반의 침몰 및 암반의 낙하를 방지하기 위해 터널 내부의 굴진면을 따라 아치형으로 설치되는 것으로, '격자보' 또는 '강지보'라고도 한다. 이러한 격자지보를 터널 내부에 세로로 설치하고 가로방향의 간격고정판로 고정한 후, 쇼크리트(Shocrete)를 타설하여 터널의 기초공사가 완료된다.In general, lattice girder is installed arcuately along the inclined surface of the tunnel to prevent the sinking of the ground and falling of rocks when constructing the tunnel, also referred to as 'lattice beam' or 'gangjibo'. . After installing the grid girders vertically inside the tunnel and fixing them with the horizontally spaced fixing plates, the foundation of the tunnel is completed by pouring shockcrete.

상기의 격자지보에 관한 종래기술로는 국내공개특허 제:10-1994-0021892(1994.10.19.)호, 국내실용신안출원 제:20-2002-0025938(2002.08.30.)호 등이 이미 공지된 바에 있으나, 스틸바와 고정부재(스파이더)가 용접방식으로 융착되어 있어서, 내식성이 취약하고 내구성이 저하되는 등의 문제점이 있었다.As the prior art of the grid support, Korean Patent Publication No. 10-1994-0021892 (1994.10.19.), Korean Utility Model Application No .: 20-2002-0025938 (2002.08.30.) And the like already known Although it has been, but the steel bar and the fixing member (spider) is welded by the welding method, there was a problem such as poor corrosion resistance and durability.

위와 같은 문제점을 해결하기 위해 본 발명의 출원인은 아래의 선행기술문헌과 같은 국내특허출원 제10-2010-0048594호(2010.05.25. 미공개), 국내특허등록제 10-0992529호, 국내특허출원 제10-2010-0063234호(2010.07.01. 미공개) 등을 이미 제안한 바에 있다.In order to solve the above problems, the applicant of the present invention is a domestic patent application No. 10-2010-0048594 (2010.05.25. Unpublished), such as the following prior art document, domestic patent registration No. 10-0992529, domestic patent application No. 10 -2010-0063234 (2010.07.01. Unpublished) and others have already proposed.

그러나 위 본 출원인에 의한 선행 출원은 조립이 간편하고 작업공수를 줄이는 등 편리성과 내구성을 향상되었지만, 강도를 높이는 데는 다소 미흡한 문제점이 있게 되었다.
However, the prior application by the present applicant has improved convenience and durability, such as easy assembly and reducing the number of work, but there is a problem that is somewhat insufficient to increase the strength.

1.국내특허출원 제10-2010-0048594호(2010.05.25. 미공개)1.Korean Patent Application No. 10-2010-0048594 (2010.05.25.Unpublished) 2.국내특허등록 제10-0992529호2.Domestic Patent Registration No. 10-0992529 3.국내특허출원 제10-2010-0063234호(2010.07.01. 미공개)3.Domestic Patent Application No. 10-2010-0063234 (Jul. 2010, Unpublished)

본 발명은 스틸바에 의해서 격자지보가 구성됨에 있어, 상기 스틸바의 간격을 유지시키면서 고정시키기 위해 설치되는 고정판들 중앙으로 보강대를 설치하여 강력한 체결력과 내구성을 크게 향상시킬 수 있는 보강대를 가지는 터널공사용 격자지보를 제공하는 데 있다.
According to the present invention, the grid girders are constructed by steel bars, and the grids for tunnel works having a reinforcing bar that can greatly enhance strong fastening force and durability by installing reinforcing bars in the center of fixing plates installed to fix the steel bars while maintaining the spacing thereof. It is to provide security.

본 발명은, 상부 제1스틸바 및 하부의 제2스틸바와, 상기 스틸바에 부착하여 간격을 유지하기 위한 고정판으로 된 보강대를 가지는 터널공사용 격자지보에 있어서, 상기 고정판에 형성된 구멍에 보강대를 끼우고 융접으로 접합하여 일체로 구성되고, 상기 고정판의 외곽에 스틸바를 결합시키기 위한 결합수단이 구비된 것을 특징으로 하는 보강대를 가지는 터널공사용 격자지보를 제안한다.The present invention is a tunnel support grid grating support having an upper first steel bar and a second steel bar at the bottom and a fixing plate for fixing to maintain the spacing attached to the steel bar, the reinforcing bar is inserted into the hole formed in the fixing plate The present invention proposes a tunnel grid grating support having a reinforcing rod, which is integrally formed by fusion welding and is provided with a joining means for joining a steel bar to the outside of the fixing plate.

또한 본 발명에 따르면, 상기 보강대는 {플레이트바(Plate bar), 라운드바(Round bar)} 중에서 선택된 것임을 특징으로 한다.In addition, according to the present invention, the reinforcing bar is characterized in that selected from {plate bar, round bar}.

또한 본 발명에 따르면, 상기 결합수단은 보강대의 외곽 모서리에 부착된 클램프밴드가 스틸바를 감싸고 볼트/너트와 같은 체결구에 의해 조립된 것을 특징으로 한다.In addition, according to the present invention, the coupling means is characterized in that the clamp band attached to the outer edge of the reinforcement of the steel bar is assembled by a fastener such as bolts / nuts.

상기 결합수단은 보강대의 외곽 모서리를 스틸바와 융접으로 접합시켜 일체로 구성된 것을 특징으로 한다.
The coupling means is characterized in that it is integrally formed by welding the outer edge of the reinforcing table to the steel bar by fusion welding.

본 발명은 격자지보의 결합구조에 있어, 체결력을 크게 향상시키면서 더욱 견고하고 내구성이 향상됨에 따라 터널공사에 대한 신뢰도를 높이고 터널의 수명을 길게 하여 경제적인 효과를 기대할 수 있으며, 붕괴에 대한 안전사고 및 경제적 손실을 방지할 수 있게 된다.
The present invention, in the coupling structure of the grid support, can be expected to economic effect by increasing the reliability of the tunnel construction and increase the lifetime of the tunnel, as the tightening force is greatly improved and the durability is improved, the safety accident against collapse And economic losses can be prevented.

도 1은 본 발명의 바람직한 실시 예에 따른 보강대를 가지는 터널 공사용 격자지보의 일부분을 나타낸 사시도.
도 2는 본 발명에 따른 격자지보에 보강대가 설치된 상태의 정면도.
도 3은 본 발명에 따른 격자지보의 보강대를 단면으로 나타낸 측면도.
도 4는 본 발명의 다른 실시 예에 따른 보강대를 가지는 격자지보의 측면 단면도.
도 5와 도 6은 본 발명에 따른 격자지보가 또 다른 실시 예를 나타낸 도면.1 is a perspective view showing a portion of the grid support for tunnel construction having a reinforcement in accordance with a preferred embodiment of the present invention.
Figure 2 is a front view of the reinforcement is installed on the grid support according to the present invention.
Figure 3 is a side view showing the reinforcement of the grid girders according to the present invention in cross section.
Figure 4 is a side cross-sectional view of the grid support having a reinforcement in accordance with another embodiment of the present invention.
5 and 6 are views showing another embodiment of the grid support according to the present invention.

이하 본 발명의 바람직한 실시 예를 첨부된 도면을 참조하여 상세히 설명한다. 상기의 도면에 따르면 본 발명은, 상부 제1스틸바(12) 및 하부의 제2스틸바(12a)와, 상기 스틸바(12,12a)에 부착하여 간격을 유지하기 위한 고정판(20)으로 된 보강대를 가지는 터널공사용 격자지보에 있어서, 상기 고정판(20)에 형성된 구멍(22)에 보강대(30,31)를 끼우고 융접으로 접합하여 일체로 구성되고, 상기 고정판(20)의 외곽에 스틸바(12,12a)를 결합시키기 위한 결합수단(24,25,26)이 구비된 것을 특징으로 한다.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. According to the drawings of the present invention, the upper first steel bar 12 and the lower second steel bar (12a) and the fixing plate 20 for maintaining the spacing by attaching to the steel bars (12, 12a) In the grid support for tunnel construction having a reinforced reinforcement, it is formed integrally by fitting the reinforcing rods (30, 31) to the hole 22 formed in the fixing plate 20 and joined by fusion welding, the steel outside the fixing plate (20) Coupling means (24, 25, 26) for engaging the bars (12, 12a) is characterized in that it is provided.

위를 더욱 자세하게 설명하면 다음과 같다.The above is described in more detail as follows.

먼저, 본 발명의 터널 공사용 격자지보(100,200,300)는 베이스프레임(10)과, 상부의 제1 스틸바(12) 및 하부의 제2 스틸바(12a)와, 상기 스틸바에 부착하여 간격을 유지하는 고정판(20)과, 상기 고정판을 스틸바에 고정하기 위한 결합수단(24,25,26)으로 구성된다. First, the grid support grid beams 100, 200, and 300 of the present invention are attached to the base frame 10, the upper first steel bar 12 and the lower second steel bar 12a, and the steel bar to maintain a gap It consists of a fixing plate 20 and the coupling means (24, 25, 26) for fixing the fixing plate to the steel bar.

상기 베이스프레임(10)은 스틸바의 양측 끝단에 부착하여 다른 격자지보와 연결하기 위한 연결수단으로, 구멍을 형성하고 볼트/너트 등의 체결구로 조립하게 된다.The base frame 10 is attached to both ends of the steel bar as a connecting means for connecting with other grid support, forming a hole and assembled with fasteners such as bolts / nuts.

상기 제1, 제2스틸바(12,12a)는 일정한 길이를 가지며, 복수 개가 소정의 간격을 두고 길이방향으로 나란하게 구비되는데, 바람직하게는 도면에서처럼 상부의 제1 스틸바(12)를 기준으로 하부 양측에 동일한 간격을 두고 제2 스틸바(12a)를 배치함에 따라, 정삼각형 또는 이등변삼각형으로 구성되며, 상기 고정판(20)에 의해 고정된 채로 삼각의 기둥형태로 이루어진다. The first and second steel bars 12 and 12a have a predetermined length, and a plurality of first and second steel bars 12 and 12a are provided side by side in the longitudinal direction at predetermined intervals. By arranging the second steel bar 12a at equal intervals on both lower sides thereof, it is composed of an equilateral triangle or an isosceles triangle, and is made of a triangular pillar shape while being fixed by the fixing plate 20.

상기 고정판(20)은 외곽 모서리에 스틸바가 부분적으로 끼워져 밀착하도록 요홈을 형성하고 결합수단(24)에 의해 스틸바를 고정한다. The fixing plate 20 is formed in the groove so that the steel bar is partially fitted to the outer edge close contact and secure the steel bar by the coupling means (24).

여기서, 상기 고정판(20)에는 적어도 하나 또는 복수 개의 보강대(30)를 구비함에 따라, 비틀림이나 휘어짐을 방지하고 내구성이 향상된다. 이를 위해 고정판의 중앙부에 구멍(22)을 형성하고 보강대(30)를 스틸바와 나란한 길이방향으로 구멍을 관통시켜서 고정판과 융접(용접)으로 접합시킨다.In this case, the fixing plate 20 is provided with at least one or a plurality of reinforcing rods 30 to prevent twisting and bending and to improve durability. To this end, a hole 22 is formed in the center of the fixing plate, and the reinforcing bar 30 is joined to the fixing plate by welding (welding) by passing the hole in the longitudinal direction parallel to the steel bar.

바람직하게, 상기 보강대(30,31)는 삼각 내지는 사각, 다각의 플레이트바(30, Plate bar) 또는 라운드바(31, Round bar) 중에서 선택된 하나 또는 복수 개의 것으로 구성되며, 상기 구멍(22)도 이에 대응하도록 구성된다.Preferably, the reinforcing bar (30, 31) is composed of one or a plurality of selected from triangular, rectangular, polygonal plate bar (30, Plate bar) or round bar (31, Round bar), the hole 22 also It is configured to correspond thereto.

상기 결합수단(24)은 도 3 및 도 4에서처럼, 절반으로 분할된 클램프밴드 및 볼트/너트, 리벳 등의 체결구(이하 '체결구'라 함)로 고정하게 된다.As shown in FIGS. 3 and 4, the coupling means 24 is fixed by a clamp band and a fastener such as bolts / nuts and rivets (hereinafter referred to as “fasteners”).

또는 본 발명의 격자지보(200)는 도 5에 따르면, 상기 결합수단(25)이 클램프밴드의 일단을 고정판의 외곽에 구비되어 있는 걸림턱에 걸친 후 타단을 고정판과 상기의 체결구로 고정하도록 된 조립식으로 선택적인 구성을 가진다.Or according to the lattice gib 200 of the present invention, according to Figure 5, the coupling means 25 is fixed to the fixing plate and the fastener of the other end after the end of the clamp band across the engaging jaw provided on the outside of the fixing plate Prefabricated optional configuration.

또는 본 발명의 격자지보(300)는 도 6을 참조하면, 상기 결합수단(26)은 스틸바 외측을 띠형태로 된 클램프밴드로 감싸고 이 클램프밴드의 중간부에 볼트를 끼우고 조이는 체결력에 의해 클램프밴드가 긴장감 있게 당겨지면서 스틸바에 밀착하면서 고정력이 상승하도록 구성된다.Or the grid support 300 of the present invention, referring to Figure 6, the coupling means 26 is wrapped around the outside of the steel bar with a band-shaped clamp band and by the clamping force to tighten and tighten the bolt in the middle of the clamp band. The clamping band is tensioned and configured to increase the holding force while being in close contact with the steel bar.

또 다르게는 본 발명에 따르면, 상기 결합수단으로는 스틸바와 고정판을 용접을 포함하는 융접으로 접합하여 완전히 고정함에 따라, 일체형으로 구성된다.Alternatively, according to the present invention, as the coupling means is completely bonded to the steel bar and the fixing plate by welding including welding, it is configured in one piece.

한편, 상기의 상부 스틸바(12a)는 콘크리트용 봉강, 특히 철근, 고강도철근(SD400, SD500)이 바람직하다.
On the other hand, the upper steel bar (12a) is preferably a steel bar, in particular reinforcing bars, high strength reinforcement (SD400, SD500).

12:제1 스틸바 12a:제2 스틸바 20:고정판
22:구멍 24,25,26:결합수단 30,31:보강대
100,200,300:격자지보12: first steel bar 12a: second steel bar 20: fixed plate
22: hole 24, 25, 26: coupling means 30, 31: reinforcing rod
100,200,300: Grid support

Claims (4)

상부 제1스틸바(12) 및 하부의 제2스틸바(12a)와, 상기 스틸바(12,12a)에 부착하여 간격을 유지하기 위한 고정판(20)으로 된 보강대를 가지는 터널공사용 격자지보에 있어서,
상기 고정판(20)에 형성된 구멍(22)에 보강대(30,31)를 끼우고 융접으로 접합하여 일체로 구성되고, 상기 고정판(20)의 외곽에 스틸바(12,12a)를 결합시키기 위한 결합수단(24,25,26)이 구비된 것을 특징으로 하는 보강대를 가지는 터널공사용 격자지보.
On the grid girders of tunnel constructions having an upper first steel bar 12 and a lower second steel bar 12a, and a reinforcing bar made of fixing plates 20 attached to the steel bars 12 and 12a to maintain a gap. In
The reinforcing rods 30 and 31 are inserted into the holes 22 formed in the fixing plate 20 and are integrally formed by fusion bonding. Tunnel grid grating support having a reinforcement, characterized in that the means (24, 25, 26) is provided.
제1항에 있어서,
상기 보강대는 {플레이트바(30, Plate bar), 라운드바(31, Round bar)} 중에서 선택된 것임을 특징으로 하는 보강대를 가지는 터널공사용 격자지보.
The method of claim 1,
The reinforcing bar is a grid support grid for tunnel engineering having a reinforcing bar, characterized in that selected from {plate bar (30, Plate bar), round bar (31, Round bar)}.
제1항에 있어서,
상기 결합수단(24,25,26)은 보강대(20)의 외곽 모서리에 부착된 클램프밴드가 스틸바(12,12a)를 감싸고 볼트/너트와 같은 체결구에 의해 조립된 것을 특징으로 하는 보강대를 가지는 터널공사용 격자지보.
The method of claim 1,
The coupling means (24, 25, 26) is a reinforcing rod characterized in that the clamp band attached to the outer edge of the reinforcing rod 20 wraps the steel bars (12, 12a) and is assembled by fasteners such as bolts / nuts Tunnel grid grating with branches.
제1항에 있어서,
상기 결합수단은 보강대(20)의 외곽 모서리를 스틸바(12,12a)와 융접으로 접합시켜 일체로 구성된 것을 특징으로 하는 보강대를 가지는 터널공사용 격자지보.The method of claim 1,
The coupling means is a grid support grid for tunnel works having a reinforcement, characterized in that integrally joined to the outer edge of the reinforcing rod 20 by a steel bar (12, 12a) fusion welding.
KR1020110045692A 2011-05-16 2011-05-16 A lattice girder for tunnel construction KR101187965B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101286570B1 (en) 2012-09-03 2013-07-22 최두환 Timbering connection structure and timbering assembly for a tunnel including the same

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100534456B1 (en) 2005-05-26 2005-12-08 천원공업 주식회사 Tunnel support lattice girder
KR100992529B1 (en) 2010-06-16 2010-11-05 최주환 A fabrication type lattice girder
KR100993096B1 (en) 2010-05-10 2010-11-08 최주환 A lattice girder for tunnel construction

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100534456B1 (en) 2005-05-26 2005-12-08 천원공업 주식회사 Tunnel support lattice girder
KR100993096B1 (en) 2010-05-10 2010-11-08 최주환 A lattice girder for tunnel construction
KR100992529B1 (en) 2010-06-16 2010-11-05 최주환 A fabrication type lattice girder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101286570B1 (en) 2012-09-03 2013-07-22 최두환 Timbering connection structure and timbering assembly for a tunnel including the same

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