水下工程施工的风险分析与化解

RiskAnalysisofUnderwa2terWorksConstructionanditsSolutionFENGYi,HUANGCun2xian,ZHAOHong2zhi(NanningWaterwayAdministration,Nan2ning,Guangxi530031)Abstract:Theauthorsintroducedthenecessitiesofriskanalysisforunderwaterprojectconstructionbasedonanunderwa2terprojectconstructionexample,andpro2posedthetechnologicalmeasurestomini2mizeandsolveconstructionaldifficultiesandrisks.Keywords:Water2relatedProject,Riskanalysis,riskresolution:16734874(2006)02006307,,(,530031):,,:;;:U698:A,,,,,,,,1,(1),(5m);;,,2m/s,015m,,(2),,(3),,,,36WaterwaysTransport,22111987,760mDN300mm,25,:(1),,215m,,,(2),,215m,,«37cm«5080cm(700kg),12m,,(3)55,NKK60,25,,:760m3,760m,,,,300kg,,,,215t2,12:12,100215t400t(1000)20t,,,,,,:;;,,;;,;,(3):346,,2122#19921994,(),,,,2#:,1113m,,,,,6m,,1719m,,2#,,6m,11,,,,;199310,,,19941,2,2m,,20m,,,,,,2/3,,,,,,(4)4213B21311B72KW,,13m4560,:d818m,h4165m,l4114m;h4110m,d5101m,132t,,,,,,:67m,42m,25m,4560,,,30m,,,,21312,,,:(1),,56WaterwaysTransport(2)132t,(3),,,5t,,,,,,,,,(4),,,,(5),,(6),,,,,,(5)521313,,19984,,:(1)(),:,30m,5m,20m,1015,60m,:20m15m60m=18000m3,1500/m3,2700,()400,,2000,(2),,(3),(4)B,,,,,,,,,2142141120012002,10m3,,1815m1416m(ld),13m66,«DN1000mm,,,:(1),01215m,,2153m,,,,,,(2)l60mDN1000mm,11m(915m),,,,,,21412,:(1),175kW8,,40100m3/h,,;,:,,,,,,(2)60mDN1000mm,,(6):6:,,,,;,45,,,(016m),,,L,,L=D/tg,:L(m)D(m),:300,L=D/tg=110/tg30=117m:(1)60mDN1000mm,,,,,,,,,,,1400t,,(2),76WaterwaysTransport:(),,(),,,;,()(016m);,,;23m,,136mDN1000mm20020318,20020420,240m20020408,20020421,,,,21521511200587m+610m,-118m,,(7)7,,d41455110m,,,11:,,,,,1999,,,,,,,20012002,10t,,,,,,::K=G-BLHR+F:K,K1;G(t);B,,B=0;L(m)H(m)R(t/m2),R,:R=215510t/m2,R=110112t/m2(:,,R115t/m2,12mR215t/m2)F,F=1035t/m2,,F=0:86K1(,),115t/m2,K1=1133,K2(,,R=115t/m2)K2=01731,K3(,,,R=215t/m2)K3=0181,,,,,,,11,21512,:,,,2m,,,2m,+3m,+217m013m,,(8)8()21513::,10:,,,2m,160t,,1115m,012014m,,,2m160t,,,,,,,23m,,,2m,(217m)013m,3,,,,,,,,,,[1][Z].:,1980.[2][Z].:,1985.[3][Z].:,1997.:20060227:(1932),,,96