| 摘要 |
An earth anchor having a hollow body member to which is attached at one end a screw threaded anchor bar, a shaped cutting head at an opposite end of the body, and a helical flight extending around the body. The earth anchor may be installed by rotating the body via the screw threaded anchor bar or via a tubular driver extending over the screw threaded anchor bar to engage drive engaging projections on the body. A grouting tube may be removably located over the screw threaded anchor bar to enable encapsulation of the anchor bar by a cementitious grout when located in an earth mass.
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