| 摘要 |
PROBLEM TO BE SOLVED: To provide an anchorage with threads and nuts which can be mounted easily and securely to anchoring cables at a working site, and to provide also an ideal tension control which is conducted by imposing uniform loads on the anchoring cables of different length. SOLUTION: Anchor cables 10, 20, 30 being inserted through an anchorage with threads and nuts 60, tip-ends of the anchoring cables are given in tension in order to impose uniform loads to the anchor cables of different length by using a differential tensioning device 70 till the end of the operation. Being kept in this state of tension, the anchoring cables are tentatively held to a temporary plate 78 which is accompanied to the differential tensioning device. Then the anchoring cables are adhered to the anchorage by injecting epoxy resin between them. After secure adhesion of the anchor cables, by fastening a fixing nut 80 screwed in the anchorage, the anchor cables are firmly anchored to an anchor plate 50.
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