Cellular Cofferdam 설계와 시공

Abstract

지난 50여년간 Cellular Cofferdam의 규모가 점점 커짐에 따라 하천 및 항만구조물 시공도 크게 발전하였다. 1910-1930년대의 초기단계에는 30-4Oft 높이이던 것이 최근에는 l15ft놀이까지 성공적으로 시공되었다. 모래층 위에 축조되기도 하나 대부분의Cellular Cofferdam은 암반 위에 축조되고 주로 모래, 또는 모래와 자갈로 채워진다. 본고는 Cellular Cofferdam의 발전단계, 종류, 설계절차를 여러 시공예와 함께 기술하였다.

The construction of river and harbor structure has been developed largely in the last 50 years by cellular cofferdams of larger and larger dimensions and depths.

Beginning in 1910-1930 with head of 30 to 40 ft, a recent cofferdam has been constructed successfully to withstand a head of l15ft.

Most of cellular cofferdams were founded on rock with fill materials principally of sand, or sand and gravel, but several were founded on deep sand strata.

The types and design procedure are described with a presentation of construction examples and practical considerations.

The construction of river and harbor structure has been developed largely in the last 50 years by cellular cofferdams of larger and larger dimensions and depths.

Beginning in 1910-1930 with head of 30 to 40 ft, a recent cofferdam has been constructed successfully to withstand a head of l15ft.

Most of cellular cofferdams were founded on rock with fill materials principally of sand, or sand and gravel, but several were founded on deep sand strata.

The types and design procedure are described with a presentation of construction examples and practical considerations.