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1. 发明授权

US4009582A Method for forming deep cast-in-place caseless concrete piles 失效
标题翻译：用于形成深施工无固定混凝土桩的方法
公开(公告)号：US4009582A
公开(公告)日：1977-03-01
申请号：US627012
申请日：1975-10-29
申请人： William R. LeCorgne
发明人： William R. LeCorgne
IPC分类号： E02D5/38 , E02D5/48 , E02D5/52 , E02D5/62 , E02D5/34
CPC分类号： E02D5/385 , E02D5/48 , E02D5/523 , E02D5/62
摘要： A method for forming a deep cast-in-place concrete pile in the earth extending to an excessive depth by driving a hollow metallic pipe member having a height to span a substantial fraction of the design depth of the completed pile into the ground for almost its full depth, coupling a connector and hollow tubular driving mandrel to the top of the pipe section, driving the mandrel to advance the pipe section to the design depth while concurrently gravity feeding flowable concrete into the mandrel and pipe member extending therebelow, and withdrawing the mandrel leaving a monolithic concrete pile column encased by the pipe member over its lower portion.
摘要翻译：通过驱动中空的金属管构件在地球上形成深的现浇混凝土桩的方法，该中空的金属管构件的高度将完成的桩的设计深度的大部分的一部分覆盖到地面中几乎为将连接器和中空管状驱动心轴联接到管部分的顶部，驱动心轴将管段推进到设计深度，同时将可流动的混凝土重力输送到在其下延伸的心轴和管构件中，并且抽出心轴留下一个整体式混凝土桩柱，其中管道构件被其下部所包围。

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