作者: Neil Mcnaughton , John Swingler
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摘要: A remotely operable drilling apparatus (6) comprises a body such as frame (10) and drive means arranged to drill annular pile (8), which is loaded in the into floor of water. The cutting shoe (24). power swivel (12) attaches top (8) by head. Delivery also provided at least one nozzle enable flushing fluid grout be injected around (8). raised lowered rack pinion 14 disposed on either side (12).