| 发明名称 |
Method of roof control in an underground mine |
| 摘要 |
Stresses in an underground mine are determined by analyzing mechanical properties of mine site stratum including Young's modulus. The mechanical properties are combined with the physical layout of the mine. From the application of the mechanical properties, stresses in the mine are determined.
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| 申请公布号 |
US5824912(A) |
申请公布日期 |
1998.10.20 |
| 申请号 |
US19970967220 |
申请日期 |
1997.10.29 |
| 申请人 |
JENNMAR CORPORATION |
发明人 |
STANKUS, JOHN C.;GUO, SONG |
| 分类号 |
E21C39/00;E21D9/14;E21D20/00;E21F17/18;(IPC1-7):G01B5/30;G01M5/00 |
主分类号 |
E21C39/00 |
| 代理机构 |
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