| 简介 |
PROBLEM TO BE SOLVED : To provide a ground anchor enabling the smooth re-tensioning operation of a tendon. ?SOLUTION : The head-side end of a tendon 1 inserted to a water stop pipe 11 formed of an elastic material which is disposed in a fixing member 5 is fixed to the fixing member 5 composed of an anchor head superposed on the ground or a pressure receiving member 3 through a bearing plate 4. A re-tensioning maintaining shim 13 is engaged with a space a between the fixing member 5 and the bearing plate 4 which is formed when the tendon 1 is re-tensioned by pulling the fixing member 5 by a jack. The shim 13 is formed of a segmental ring body which has an inside diameter allowing the fitting of the water stop pipe 11 to the inside, and an opening width between both circumferentially opposed ends narrower than the outside diameter of the water stop pipe 11. ?COPYRIGHT : (C)2009, JPO&INPIT ? |
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