发明名称 |
APPARATUS AND METHOD FOR SUPPORTING A MINE RIB |
摘要 |
A mine rib support for bracing a vertical mine rib disposed between a mine floor and a mine roof. The support includes an elongated upright and continuous telescopically expandable support having a preset curvature. The member is longitudinally expanded for engaging the mine floor and the mine roof under compression with the curvature facing towards the mine rib. A support plate is laterally extended from the support member into compression engagement with the mine rib, thereby prestressing the support for support of the mine rib.
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申请公布号 |
CA2714191(C) |
申请公布日期 |
2013.11.05 |
申请号 |
CA20102714191 |
申请日期 |
2010.08.31 |
申请人 |
HEINTZMANN CORPORATION |
发明人 |
BREEDLOVE, JOHN J.;DENVER, ERIK;STILTNER, HERBERT B. |
分类号 |
E21D15/14 |
主分类号 |
E21D15/14 |
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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