Abstract
When a crane is utilized for concrete transport in the dam construction, the process of concrete conveying and placing is simple repeated but long time. So human errors and accidents may be possible. In addition workers are in danger of hit against transfer-car and bucket.
In order to improve safety and efficiency, automatic operation systems of transfer-car and bucket carrier and remote control buckets have been developed. These new systems are not only advantageous in performance but also in cost-saving and safety, and can be applied to most of dam construction sites.
