It is very crucial to arrange the wreck strip.To accurately cut and disassemble the sunken ship and ensure the success of explosive cutting;through the comparison between the original hull design drawings and the actual hull,the cutting explosive strips are accurately arranged at the weak points of the hull,and the detonator detonator initiation network is adopted.In order to ensure that all explosive strips are detonated,double detonators are used in each group of detonating explosive packages; It shall be wrapped with double-layer waterproof cloth and bound and fixed with hemp rope every 1m to ensure that the medicine strip is not easy to be impacted and scattered by seawater after being lowered.It has proved that through the deep-water test and initiation experiment of the detonator detonator,the detonator detonator used in the sea area with a depth of 30m can detonate safely and resist the stray current on the ship.To ensure the full disassembly of the ship′s bottom plate,the detonating cord is used to increase the initiation energy during the processing of the bottom explosive strip.The explosive amount per meter of the explosive strip in the original similar engineering example is optimized,Through the analysis of salvage after blasting,it is feasible to cut the 2~ 3 cm thick steel plate into joints with a charge of 30.24 kg per meter;It is safe and reliable to detonate with double detonators; Hemp rope binding and double-layer waterproof measures are adopted to effectively prevent seawater impact;it is effective to adopt the staggered strip layout method;the actual theoretical calculation will not produce surge,which is consistent with the measured results; The instant of blasting has little impact on seabed organisms;the explosion cutting of the sunken ship meets the design requirements and provides certain reference for the cutting and disassembly of similar underwater sunken ships.