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公开(公告)号:US06921232B2
公开(公告)日:2005-07-26
申请号:US10895244
申请日:2004-07-20
CPC分类号: E21D11/006 , E21D11/107
摘要: A truss has a pair of parallel and longitudinally extending chord rods and transverse rods interconnecting the chord rods. First and second slides each have a pair of tubes each fitting over a respective one of the chord rods and slidable longitudinally therealong and a cross member rigidly interconnecting the tubes and formed with a throughgoing hole through which passes a respective anchor member projecting from a tunnel or mine wall. The slides can be longitudinally fixed on the rods.
摘要翻译: 桁架具有一对平行和纵向延伸的弦杆以及互连弦杆的横杆。 第一和第二滑块各自具有一对管,每对管均配合在相应的一个弦杆上并且沿纵向方向可滑动,并且横向构件刚性地互连于管并形成有通孔,通孔穿过相应的锚固构件从隧道突出, 我的墙。 滑块可以纵向固定在杆上。
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公开(公告)号:US20050031420A1
公开(公告)日:2005-02-10
申请号:US10895244
申请日:2004-07-20
CPC分类号: E21D11/006 , E21D11/107
摘要: A truss has a pair of parallel and longitudinally extending chord rods and transverse rods interconnecting the chord rods. First and second slides each have a pair of tubes each fitting over a respective one of the chord rods and slidable longitudinally therealong and a cross member rigidly interconnecting the tubes and formed with a throughgoing hole through which passes a respective anchor member projecting from a tunnel or mine wall. The slides can be longitudinally fixed on the rods.
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