Abstract
Two types of model tests have been performed on ground anchorages using coned disk springs to determine the applicability of this prestress-maintaining technique. One type was a reduction model test of anchorage load and the other was a slope model test with anchorages. This paper also proposes a long term anchorage working load prediction method using a visco-elastic model.
The reduction in anchorage working load with coned disk springs is one half to one third of the reduction in anchorage working load without coned disk springs. Long term anchorage working loads are obtained by the prediction method with and without coned disk springs.
