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日本中部地建长岛大坝工程事务所1993年9月2日披露,该所成功地研制出了一种经济适用的胶结砂石施工法(CSG:CementedSand and Gravel)。此法用于修建长岛大坝上游临时围堰尚属世界首例。CSG 施工法是为增强填充料强度和抗溢
The Central Japan Construction Long Island Dam Engineering Office disclosed on September 2, 1993 that it has succeeded in developing a cost-effective cemented sand and gravel (CSG) method. This method is used to construct the temporary cofferdam upstream of Long Island Dam which is the first in the world. CSG construction method is to enhance the filler strength and anti-spill