Guardrail-type open channel for a forest road

Disclosed is a guardrail-type open channel for a forest road, of which a plurality of shape steels are welded to each other, and are drilled in a thickness direction to improve a structure of a guardrail shape, thereby improving joint ability with concrete, improving convenience of constructing an o...

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Bibliographic Details
Main Authors JUNG, YEON KUK, LEE, SE HUN, KIM, KYOUNG SIG, KIM, JIN HUN
Format Patent
LanguageEnglish
Korean
Published 28.09.2018
Subjects
CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, ORTHE LIKE
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
SOIL SHIFTING
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Summary:Disclosed is a guardrail-type open channel for a forest road, of which a plurality of shape steels are welded to each other, and are drilled in a thickness direction to improve a structure of a guardrail shape, thereby improving joint ability with concrete, improving convenience of constructing an open channel, reducing maintenance costs, and improving drainage efficiency. A shape steel (30) of a guardrail type includes a base (31) extending in a horizontal direction by a given length, an inclined portion (32) extending upwardly straightly from an end of the base (31) at a certain angle, and pairs of protrusions (33a, 33b; 34a, 34b) extending between upper ends of the inclined portions (32) in a corrugated pattern. After the shape steel (30) is disposed on the bottom of a form in such a way that the pairs of protrusions (33a, 33b; 34a, 34b) are facing downwardly, concrete is placed and cured around the shape steel (30) to form a concrete placed portion (22). Before the concrete is placed, the protrusions (33a, 33b; 34a, 34b) are drilled in the thickness direction, and a contact portion (24) between a center protrusion (33b) of the first pair of protrusions and a center protrusion (34b) of the second pair of protrusions is welded and coupled integrally. 개시되는 가드레일 타입의 임도 개거는 금속재질의 복수개 형강들을 용접 접합하고 두께방향으로 타공하여 가드레일 형태로 구조를 개선함으로써, 콘크리트와의 접합성이 향상되어 시공이 편리하고 유지보수 비용이 절감되며 배수효율이 개선된다. 가드레일 타입의 형강(30)은 수평방향으로 일정길이만큼 연장된 기저부(31), 상기 기저부(31)의 끝단에서 비스듬하게 상방향으로 직선형태로 연장되는 경사부(32), 상기 경사부들(32)의 상단부들 사이에서 골과 마루의 형태로 연장되는 돌출부쌍들(33a와 33b 및 34a와 34b)를 포함한다. 별도로 준비한 거푸집의 바닥에 상기 돌출부쌍들(33a와 33b 및 34a와 34b)이 아래를 향하도록 형강(30)을 배치한 후 형강(30)의 주변으로 콘크리트를 타설한 후 양생하여 콘크리트 타설부위(22)를 형성한다. 콘크리트 타설에 앞서 돌출부들(33a,33b,34a,34b)에 두께방향으로 타공(35)이 형성되고, 서로 이격되어 있던 상기 제 1 돌출부쌍의 중앙돌출부(33b)와 상기 제 2 돌출부쌍의 중앙돌출부(34b) 사이의 접착부위(24)를 용접하여 일체로 결합시킨다.
Bibliography:Application Number: KR20170119541