Bridges and bridge scour scour prevention methods to prevent the ball

The present invention relates to a scour protection and a scour protection method of a bridge. The present invention is to install the scour protection with a radial structure easily by constructing the scour protection by joining a grid-type PC cover plate having a frame structure to an upper side...

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Bibliographic Details
Main Authors LEE, SHIN WON, JEONG, KYU OK
Format Patent
LanguageEnglish
Korean
Published 04.10.2016
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Summary:The present invention relates to a scour protection and a scour protection method of a bridge. The present invention is to install the scour protection with a radial structure easily by constructing the scour protection by joining a grid-type PC cover plate having a frame structure to an upper side of a PC block after filling 100 mm or greater of crushed rock inside and outside of a well after installing the PC block in the shape of the well in a plurality of fixating anchors inserted in a concrete material of a bridge base. The scour protection comprises: a plurality of the fixating anchors which are inserted at intervals, when the concrete material for the bridge base is deposited, have portions exposed upwards, and form a circle in the shape of a well; the PC block which comprises a block structure, which has anchor fixating grooves formed on a lower side to correspond to the fixating anchors and is manufactured in the shape of an arc by a PC construction method, a dowel bar, which is formed to protrude from an upper side of the block structure, protrusion units, which are formed on both sides of the block structure to correspond to each other, and a plurality of binding brackets, which are formed at intervals in a vertical direction on both sides of the block structure, consist of the insides and the outsides, and are joined by a joining means, is formed in the shape of an arc, and forms the well when a plurality of the PC blocks are joined; the crushed rock which is filled inside and outside the well formed in a circular shape by joining the PC blocks; and the grid-type PC cover plate which has a dowel bar fixating groove formed on a lower side to correspond to the dowel bar of the PC block, is formed in the shape covering an upper portion of the crushed rock on the outside from an upper portion of the PC block, and forms the shape of a doughnut when a plurality of the grid-type PC cover plates are joined. 본 발명은 교량의 세굴방지공 및 교량의 세굴방지공법에 관한 것으로, 교량기초의 콘크리트에 인서트된 다수의 고정용 앵커에 우물통 형태로 PC블록을 설치한 상태에서 우물통의 내·외측으로 100mm 이상의 암버럭을 채운 다음 뼈대 구조의 격자형 PC 덮개판을 PC블록의 상부측으로 체결하여 세굴방지공을 시공함으로써 방사형 구조의 세굴방지공을 보다 용이하게 시공할 수 있도록 함에 그 목적이 있다. 이를 위해 구성되는 본 발명은 교량기초의 콘크리트 타설시 일정 간격으로 인서트되어 일부가 상향으로 노출되어지되 우물통 형태의 원형을 이루는 다수의 고정용 앵커; 고정용 앵커에 대응하여 하부면 상에 앵커고정홈이 형성되어지되 원호의 형태로 PC공법을 통해 제작된 블록구조체, 블록구조체의 상부면에 돌출 형성되는 다웰바, 블록구조체의 양측면에 상호 대응되도록 형성되는 요철부 및 블록구조체의 양측면 상에 상하 일정간격으로 다수 구성되어지되 내·외측으로 구성되어 체결수단을 통해 결합되는 결속브라켓이 구비되어 원호의 형태로 형성되어지되 다수를 연결시 원형의 우물통을 형성하는 PC블록; PC블록의 연결에 의해 원형의 형태로 형성되는 우물통 내·외측으로 채워지는 암버럭; 및 PC블록의 다웰바에 대응하는 다웰바 고정홈이 하부면 상에 형성되어 PC블록 상부로부터 외측의 암버럭 상부를 커버하는 형태로 이루어지되 다수를 연결시 도넛 형태를 형성하는 격자형 PC 덮개판을 포함한 구성으로 이루어진다.
Bibliography:Application Number: KR20160060662