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钢围堰是一种利用多种形状钢材组合而成的无盖无底的框围结构。围堰一般分自浮式和吊装式两种,是一种省工省时较为先进的施工工艺,在交通、水利、港口等工程中广泛应用。 江苏省射阳县城区大城桥在拓宽改造施工中,按照业主和设计要求,承台必须在正常水位以下,为了保证承台在水下施工质量,采取了两种方案的比较:一是利用传统的方法,在
Steel cofferdam is a combination of a variety of shapes made of steel without cover bottomless structure. Cofferdam generally divided into two types of self-floating and hoisting, is a provincial labor more advanced construction technology, transportation, water conservancy, ports and other projects are widely used. In the project of widening and rebuilding the Da Cheng Bridge in Sheyang County, Jiangsu Province, according to the owner and design requirements, the cap must be below the normal water level. In order to ensure the quality of the cap platform under water, two schemes are adopted: The way, at