The abutment slope at Dagangshan Hydropower Project has complex geological conditions with faults, dikes, unloading crack intensive belt, deep unloading belt and developed joint fissures.
大岗山水电站坝肩边坡地质条件复杂，断层、岩脉、卸荷裂隙密集带、深部卸荷带及节理裂隙发育。
2
The vehicles jumping at the joint of bridge abutment and the approach will increase the traffic danger, and cause the annual maintenance cost higher than 100 million us dollars.