发明名称 Pile apparatus and construction process of placing concrete pile in ground
摘要 The present invention relates to a concrete pile construction method and an apparatus used for improving soft earth ground by constructing reinforced bar concrete pile structures in the earth. The purpose of the present invention is to provide a process for securing firm concrete piles having a reinforced bar core with uniform concrete by means of a pile apparatus in which projections are radially formed and a conical-shaped bit is formed pointedly on said pile apparatus.
申请公布号 US2003021637(A1) 申请公布日期 2003.01.30
申请号 US20010995046 申请日期 2001.11.27
申请人 YANG WON-HOI;LEE HO-SANG 发明人 YANG WON-HOI;LEE HO-SANG
分类号 E02D5/34;E02D5/38;(IPC1-7):E02D5/30 主分类号 E02D5/34
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