发明名称 |
MINE STOPPING, METHOD OF CONSTRUCTING SAME AND PANELS THEREOF |
摘要 |
A permanent mine stopping comprising two spaced-apart metal walls with a filling in the space therebetween keyed or adhesively bonded to the walls and having sufficient strength in tension to constitute the walls and the filling as a permanently integrated composite structure in which the walls act as flanges in conjunction with the filling as a web. Also, a method of constructing the stopping using extensible panels to construct the walls, and an extensible panel for use in constructing a stopping with said keying.
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申请公布号 |
CA2292117(C) |
申请公布日期 |
2007.08.14 |
申请号 |
CA19992292117 |
申请日期 |
1999.12.13 |
申请人 |
JACK KENNEDY METAL PRODUCTS & BUILDINGS, INC. |
发明人 |
KENNEDY, WILLIAM R.;KENNEDY, JOHN M. |
分类号 |
E21D9/14;E21F5/00;E21F17/103 |
主分类号 |
E21D9/14 |
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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