COFFERDAM, ITS CONSTRUCTION METHOD USING SHEET FILE AND WALE AND CONSTRUCTION METHOD FOR UNDERWATER STRUCTURE USING THE COFFERDAM

摘要

A cofferdam using a sheet pile and a wale, a construction method thereof, and an underwater structure construction method using the same are provided to efficiently utilize the inner space of a cofferdam without using a tie cable and a strut in a cofferdam. A cofferdam(1) using a sheet pile and a wale is composed of a guide pile(20), a sheet pile assembly(10), and a circular wale(22). The sheet pile assembly is formed by circularly assembling sheet piles. The sheet pile assembly is installed in the guide pile. The outside of the sheet pile assembly is connected to the circular wale installed in the guide pile to support the sheet pile assembly.