Based on the results of engineering geological investigation

the original design scheme of a reinforced earth retaining wall at a power plant is evaluated

which is found to take no account of the effect of the layer of silty clay including gravel

overestimate the bearing capacity of the ground and fail to satisfy the requirement of safety against deep sliding of the whole reinforced structure. To ensure the safety of the structure

the original design scheme should be modified. Some suggestions are made for the design of reinforced earth structure and the importance is stressed of the engineering geological conditions for the designing. This study will be of some reference value to the application of reinforced earth structures in practice.