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由国家城乡建设部建筑机械研究所设计,瑞安建筑机械厂试制的DZ—20Y型振动打桩锤,已于今年四月在瑞安由省城乡建设厅主持通过鉴定。DZ—20Y型振动打桩锤是引进日本先进技术,根据我国特点设计的一种新型振动锤。它主要用于承载能力在14T/M~2以下N值(标准贯入数)为12以下的地质条件下打设直径为400毫米以下、深度为18米以内的混凝土灌注桩石灰桩。配上液压夹头还可以
Designed by the Institute of Construction Machinery of the Ministry of Urban and Rural Construction, the DZ-20Y vibratory piling hammer prototyped by Rui’an Construction Machinery Factory was in April this year presided over by the Provincial Department of Urban and Rural Construction in Rui’an. DZ-20Y vibratory hammer is a new type of vibratory hammer designed based on the characteristics of China by introducing advanced technology from Japan. It is mainly used for the construction of concrete cast-in-place pile lime piles with a diameter of 400 mm or less and a depth of less than 18 meters under geological conditions where the carrying capacity is 14 T/M2 or less and the standard penetration number is 12 or less. With hydraulic chuck can also