Abstract：Rock embedded foundation is a new kind of environmental protection foundation in transmission line. Field prototype tests about the rock embedded foundation have been carried out for a 750 kV electric power transmission line in Gansu Province. The uplift loading-displacement curves and horizontal load-displacement curves have been obtained. The loading characteristics and failure pattern of foundation are analyzed based on test data. The rock¢s equivalent ultimate shear strength is determined by calculation. Limit equilibrium theory is used to calculate foundation stability. The load transfer characteristics of anchor bolts are analyzed. It is shown that the rock embedded foundation can be used for weathering rock foundation in mountain transmission line. The economical benefit and performance of environmental protection of rock embedded foundation are pointed out according to comprehensive cost analysis.
