| 发明名称 |
PIPELINE CROSSING UNDER ROADWAY |
| 摘要 |
construction engineering; pipeline erection and repairing. SUBSTANCE: pipeline is laid in protective casing (cylindrical sheath). End seals are installed in-between pipes. Metal ledges are joined to cylindrical sheath; length of intermediate ledge is equal to width of roadway. EFFECT: enhanced reliability of crossing. 1 dwg _ |
| 申请公布号 |
RU2179277(C2) |
申请公布日期 |
2002.02.10 |
| 申请号 |
RU19990126101 |
申请日期 |
1999.12.14 |
| 申请人 |
OOO "BASHTRANSGAZ" ROSSIJSKOGO AKTSIONERNOGO OBSHC;HESTVA GAZPROM |
发明人 |
VALEEV M.M.;ASADULLIN M.Z.;ZARIPOV R.V.;USMANOV R.R.;AMINEV F.M.;ASKAROV R.M.;FAJZULLIN S.M. |
| 分类号 |
F16L7/00;F16L1/028 |
主分类号 |
F16L7/00 |
| 代理机构 |
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代理人 |
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