Research on endurance of prestressed anchorage cables in TGP shiplock’s high slope

There are 229 bundles of 1 000 kN prestressed anchorage cables, 3 975 bundles of 3 000 kN prestressed anchorage cables, 97 000 roots of 400 kN high-tensile anchors and 1 054 wedge-shaped blocks of reinforced rock slopes mounted in the high slope project of the TGP's double line fifth-grade shiplock, in which the mounts of slope anchoring and rock block support are the maximum in the world. As the prestressed anchorage cables's key role in shiplock high slope, during design and construction the shiplock's prestressed anchorage cables, systematic research on antiseptic technique of anchorage cables is completed. In addition with the interior and oversea newest-researches on anchorage cables's endurance are collected; at the same time considering its underground surroundings anchorage cables's endurance is studied roundly. Those researches show that prestressed anchorage cables’ aseptic measures and endurance are reliable in the high slope of the TGP shiplock.