发明名称 |
ANCHOR FOR SUPPORTING OF UNDERGROUND WORKINGS |
摘要 |
FIELD: mining industry. SUBSTANCE: anchor has screw-type rod turned in blast-hole. Tail-piece of anchor carries supporting member, spring, and additional rod. Coils of lower end of spring are located at face end of screw-type rod and are engaged with stop fastened between adjacent coils of screw-type rod. Enclosed between stop of screw-type rod and blast-hole face is stabilizing solution. Additional rod is located at side of face end of screw-type rod and is rigidly connected with some coils of upper end of spring turned towards blast-hole face. Spring coils are compressed with possibility of future extension under action of loads at side of rock matter. This allows for increasing load-carrying capacity of anchored roof of underground working. EFFECT: higher efficiency. 3 dwgi
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申请公布号 |
RU2112883(C1) |
申请公布日期 |
1998.06.10 |
申请号 |
RU19960120272 |
申请日期 |
1996.10.08 |
申请人 |
GOSUDARSTVENNYJ NAUCHNO-ISSLEDOVATEL'SKIJ, PROEKTN;GNI SKIJ P;EHKSPERIMENTAL NYM Z PECHORNII |
发明人 |
POGUDIN JU.M.;DOLOTKIN JU.N.;SHURKO V.I.;SOKOLOV A.B.;KANEV V.I.;LEVITIN L.L. |
分类号 |
E21D21/00;E21D20/02;(IPC1-7):E21D21/00 |
主分类号 |
E21D21/00 |
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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