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近年来,在城市改建工程中,尤其是城区或狭窄场地拆建工程的基础施工中,因采用落锤(柴油锤、振动锤)施工法而产生的振动、噪声和冲击波等的危害,使其在各地区逐步被限制使用。为此日本研究开发了一种无振动、无噪声,不需排土的桩基施工法,即螺旋叶钢管桩,已于1987年通过日本建筑中心鉴定。 1 施工特点 (1)螺旋叶桩由于采用回转埋入施工法,几乎不会产生振动和噪声,也不会破坏施工现场附近的环境。 (2)由于桩体螺旋叶的作用,增大了桩周围的摩擦力。而且根据地基的情况,可做摩擦桩或支承桩使用。
In recent years, in urban reconstruction projects, especially in the construction of urban areas or the construction of narrow site demolition projects, the use of hammers (diesel hammers, vibratory hammers) to create the vibration, noise and shock waves and other hazards, making it Gradually used in all regions. To this end, Japan has developed a vibration-free, noise-free, pile-free construction method that does not require dumping, that is, spiral-wound steel pipe piles. It was certified by the Japan Center for Architecture in 1987. 1 Construction Features (1) Since spiral piles adopt the rotary burial method, almost no vibration and noise will occur, and the surrounding environment of the construction site will not be destroyed. (2) The friction around the pile is increased due to the action of the spiral blades of the pile. Moreover, depending on the foundation, friction piles or support piles can be used.