发明名称 Method for repairing pipes
摘要 The invention concerns a method for repairing a pressurized fluid supply pipeline ( 1 ) comprising a series of buried prestressed concrete pipe segments ( 2, 3, 4 ) which consists in: providing excavations in the trench, beneath suitably set portions ( 6, 7 ) of the pipe ( 1 ), cleaning up said pipe portions, installing and tensioning the prestressed reinforcements ( 12 ) around said portions of the pipe and filling up the excavations with earth material by compacting said material.
申请公布号 US7174920(B2) 申请公布日期 2007.02.13
申请号 US20040486063 申请日期 2004.02.05
申请人 FREYSSINET INTERNATIONAL (STUP) 发明人 STUBLER JEROME;DE MELO FERNAND;LECINQ BENOIT
分类号 F16L55/16;F16L55/18 主分类号 F16L55/16
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