发明名称 |
ANCHORING |
摘要 |
Loose particulate material, preferably housed in a capsule, is urged towards the blind end of a borehole. An anchor element (10) having an end plate or a head (12) and a disc (18) spaced from the head is driven into the hole with rotation to compact the particulate material to form a load bearing annulus. The material is selected to be of a defined aggregate crushing value. |
申请公布号 |
ZA8709562(B) |
申请公布日期 |
1988.06.15 |
申请号 |
ZA19870009562 |
申请日期 |
1987.12.21 |
申请人 |
FOSROC INTERNATIONAL LIMITED |
发明人 |
JOHN ANTHONY COETZEE;ERNEST EDWARD CRANKO;ROGER KEITH MOORE |
分类号 |
E04C5/12;E04G21/12;E21D;E21D20/00;E21D20/02;E21D21/00;E21D23/00 |
主分类号 |
E04C5/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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