THE PROBLEM AND COUNTERMEASURE IN UNDERWATER. EXPLOSION CONSTRUCTION OF THE NORTH PORT BREAKWATER OF QIONGZHOU STRAIT RAILWAY FERRY PROJECT

In the underwater explosion, silt discharge, backfilling stones of Qingzhou Strait breakwater construction,the backfilling stones can't reach the designed depth. In this paper the properties of underlying soft soil are presented and it is found that the problem resulted from the effect of its structured strength. After that, the settlement and stablitiy of reakwater are evaluated and it is proved that the underlying soft soil fits to the requirement of bearing capacity.