发明名称 |
SHAFT LAGGING FOR FRAME SUPPORTS MADE OF SPECIAL PROFILE |
摘要 |
FIELD: mining, particularly mines lined with frame supports made of special profile. ^ SUBSTANCE: shaft lagging comprises panel 1 having curvilinear cross-section and main reinforcement made of profiles 2 integrally connected with the panel 1. Lower side 3 of panel 1 extends along curvature radius R of support frame top 4. Upper panel side 5 is spaced equal distance from lower side 3 thereof. Side panel 1 surfaces have bevels 6 directed towards center of said support frame top curvature radius R so that extensions thereof define imaginary angle alpha in-between. Angle alpha magnitude corresponds to length of opposite circular arc defined by support frame top curvature radius R. Said opposite circular arc length is equal to lower panel side 3 width. Main reinforcement profiles 2 are located as close to upper panel side 5 as possible so that main cross-section areas thereof are spaced maximal possible distance from neutral line of shaft lagging. Panel 1 is made of material having specific weight less than that of concrete, namely of polymeric material having strength exceeding that of concrete. ^ EFFECT: improved performance characteristics along with increased safety of maintenance staff operation. ^ 3 cl, 4 dwg |
申请公布号 |
RU2312220(C1) |
申请公布日期 |
2007.12.10 |
申请号 |
RU20060117674 |
申请日期 |
2006.05.22 |
申请人 |
OBSHCHESTVO S OGRANICHENNOJ OTVETSTVENNOST'JU "INNOVATSIONNYE TEKHNOLOGII "SEVERNAJA RUS'" |
发明人 |
DOBROMELOV VLADIMIR GRIGOR'EVICH;GRISHIN NIKOLAJ PAVLOVICH |
分类号 |
E21D11/15 |
主分类号 |
E21D11/15 |
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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