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已沉放钻孔桩变形钢护筒处理施工技术

Zhong-you LIU

Port & Waterway Engineering（2018）

Cited 1|Views0
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Abstract
钻孔桩的钢护筒,有时会因为地质等因素的影响,入土部分、 特别是护筒底端部会产生变形,变形严重的会影响到钻孔桩的施工.过去常采用的处理方法虽然较多,但缺陷都比较明显,在比较现有常规处理技术的基础上,围绕钢护筒变形进行技术创新,研发了振动扩孔器及校正变形钢护筒的方法,并获得了国家发明专利.该技术可快速解决钢护筒变形问题,具有广泛的应用前景.
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