简介：-Thisarticlebriefshowtoimprovetheholdingpowerofadrillingvessel’sanchorandtoremovethoseunreasonablestructuresbysuchatechnology-underwater-explosiontechnology.Thearticlegivesdetailsofthestructure,characteristicsandapplicationsofarocket-launchedanchor;aswellastheprinciple,properties,applicationsofdirectionalexplosioncutting.

简介：Owingtotheexistenceoftheflowfieldboundary,theshockwaveloadneartheboundaryisdifferentfromthefreefieldshockwaveload.Inthepresentpaper,thehullplateloadsubjectedtounderwatershockwaveisinvestigatedbasedonwavemotiontheories;inaddition,theexperimentalstudyofthehullplateloadiscarriedout.Accordingtothetheoreticalanalysisofthehullplatepressure,wefindthatthehullplatepressureoscillatesrepeatedlyanddecaysrapidlywithtimepassing,themaximumhullplatepressureis2/（1＋n）timesthemaximumfreefieldpressure,wherenistheratioofimpedance,andtheimpulseismuchsmallerthanthefreefieldimpulse.Comparedwiththeexperimentalstudy,thetheoreticalresultsagreewellwiththeexperimentaldata.

简介：ExplosionforthetreatmentofunderwatersoftfoundationisatechniquenewlydevelopedinChina.ThispaperdescribestheapplicationofthemethodofexplosiontounderwatersoftfoundationtreatmentoftheGreat-WestDyke,LianyungangPort,includingthetechnicalcharacteristicsandtheeffect,selectionofexplosionparameters,workmanshipofconstruction,requirementsofqualityandinspection,andthelike.