Application of Bottom Dump Hopper Barge for Rock Dumping Construction among Piles in Narrow Spacing Filled with Riprap Mound at High Pile Jetty

The high pile jetty consisting of general berths of Changxing Island Public Port Zone in Dalian is a linking shore structure with riprap mound in quantity among the piles in a narrow pile-to-pile spacing,a self-manufactured bottom hopper barge shall be adopted since the riprap barges with neither belt conveyor nor backhoe excavator are able to meet the requirements of the whole duration;Riprap-filling activities shall be executed by reasonable layers and different distributions;Further their track,survey,supervision and control shall be carried out to adjust the construction parameters in due course.All of the above practices ensure the location deviation of piles within permissible tolerance specified in the Specification(caused by no application of pile clamping method),greatly improve the working efficiency,effectively resolve the difficulties in rock dumping works and also provide the successful experiences for construction of the similar jetties.