发明名称 |
Soil compaction system |
摘要 |
A method of compacting granular material with continuously vibrating a hollow pipe. The vibrating pipe is lowered into the material to be compacted with a crane type apparatus, maintained in a lowered position for a period of time and then withdrawn from the material. The vibration imparted to the material is increased by a number of annular rings located along the outer surface of the vibrating pipe.
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申请公布号 |
US4080792(A) |
申请公布日期 |
1978.03.28 |
申请号 |
US19770808300 |
申请日期 |
1977.06.20 |
申请人 |
SIMMONS, WILLIAM D. |
发明人 |
ANDERSON, LOWELL M.;SIMMONS, WILLIAM D. |
分类号 |
E02D3/054;(IPC1-7):E02F1/00 |
主分类号 |
E02D3/054 |
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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