长江专用抛石工作船取、抛石系统的研究与开发

为实现航道整治工程中石料的定点抛投及精确抛投，比较分析桥式抓斗起重机和回转式抓斗起重机、升降料斗抛石装置和多节式石料输送管的特点和效率，确定长江专用抛石工作船采用桥式抓斗起重机和升降料斗抛石装置组成取、抛石系统。

Research and Development of the Fetching and Casting Stone System for the Barge Used for Casting Stone

In order to cast stone at the given point and cast stone precisely during waterway renovating, the characteristic and efficiency of the bridge grab crane and rotating grab crane, as well as the lifting and falling grab device and section type stone pipeline device were compared. The fetching and casting stone system made up of bridge grab crane and lifting and falling grab device was adopted on the barge for casting stone in Changjiang.