环保疏浚联合土工管袋用于湖库底泥的脱水减容

檲檲檲檲檲檲檲檲檲檲檲檲檲檲檲檲檲檲檲檲檲檲殘殘殘殘300051、、、、。。X703．1C1000－4602201108－0047－05Environment-friendlyDredgingwithGeotextileTubesforDewateringandVolumeReductionofSedimentsinLakeandReservoirWANGSongWEIXin-qingWANGLi-tongTianjinMunicipalEngineeringDesignandResearchInstituteTianjin300051ChinaAbstractTheengineeringcaseofusingenvironment-friendlydredgingwithgeotextiletubesfordredgingdewateringandvolumereductionofsedimentsinHanguSewageReservoirisintroduced．Itmainlyincludesdesignofenvironment-friendlydredgingpreparationofdewateringandvolumereductionsiteselectionofthegeotextiletubesfillingofgeotextiletubesdosingoftheflocculantandsoon．Throughthedesignandwholeprocesspracticeofthisengineeringthedesignparametersandprocessofenvironment-friendlydredgingwithgeotextiletubesfordewateringandvolumereductionofsedimentsinlakeandreservoirarefoundtolaythefoundationforitslarge-scaleapplicationinthefuture．Keywordssedimentenvironment-friendlydredginggeotextiletubesflocculantdewa-teringandvolumereduction2．56km230、。2008、。。11.1384．9×104m3。217①·74·27820114CHINAWATER＆WASTEWATERVol．27No．8Apr．2011。0．2～1．5m90%②。0．3～1．2m、5～11μm85%③。80%6～9μm。、120m×120m1m1．5×104m3。1.2PPPET。1。1PPPETTab．1Parametersofpolypropyleneandpolyesterproducts/kN·m－1/kN·m－1/kN·m－1/%/%/kN/mmPP709550151070．3PET70105502016160．425、2265。30．5m27．5m2．6m750m321．5m27．5m2．6m530m327150m3。1.3、。。100m92m×52m4．2m。3．0～3．5m1%1．5m0．5m2Q=150m3/hH=200kPa1。1Fig．1Pictureofcompleteddewateringandvolumereductionsite300mm、600g/m2、2mmHDPE、600g/m2、500mmDN250HDPE5m。1.4①2。2Tab．2Computationparametersofdredgerγ0/kN·m－3γ/kN·m－3γs/kN·m－3ds/mm/m/%/%9．817．1525．970．0055．01010②W=Q×P1W———m3/hQ———m3/hP———%300m3/h10%30m3/h。③·84·278．watergasheat．com30m3/h＞70%1m1．0km。DGPS。1、1、。④。3m/s150mm700m。。。1.5①。PAM0．2%～0．3%90kg/h0．1%。②312m3211。0．4%10．1%。③。15mDN150。1.6①2。2Fig．2Geotexiletubesindesignposition2a．b．。。②、、。4①21。②。③。·94·．watergasheat．com278。35～8h。3Fig．3Fillinganddewateringofgeotextiletubes④、2。8～10。22.1、、。。。2.2①10mg/L。②15d40%～50%4。7000m3700m3。4Fig．4Apparentpropertiesofsedimentwhengeotextiletubesbeingbroken。。2.3、、、。①“”。“”。②50kPa。·05·278．watergasheat．com③。④。3、、。、。50%。。1．M．2003．2．J．20072816－8．3．J．20051275－77．4MarkJSharrerKataRishelStevenSummerfelt．Evalua-tionofgeotextilefiltrationapplyingcoagulantandfloccu-lantamendmentsforaquaculturebiosolidsdewateringandphosphorusremovalJ．AquaculEng2009401－10．5MuthukumaranAEIlamparuthiK．LaboratorystudiesongeotextilefiltersasusedingeotextiletubedewateringJ．GeotextilesGeomembranes200624210－219．02227815311×[e-mail]櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵2010－12－2946。④SS。520105BOD5＜10mg/L、COD＜42mg/L、SS＜10mg/L、TP＜0．45mg/L、TN＜10mg/L。1．J．201026223－27．2．J．2010261233－35[e-mail]2010－12－16·15·．watergasheat．com278