Cov av sib txawv muaj qhov sib txawv ntawm kev hnav ntawm qhov chaw dredging, thiab cov ntaub ntawv ntawm kev hnav ntawm ntau hom dredging chaw kuj txawv.
Nyob rau hauv kev xyaum ntawm kev kawm thiab tshawb xyuas cov nyhuv ntawm dredging av ntawm hnav ntawm dredging chaw, nws tau lees paub tias lub cev thiab mechanical zog ntawm dredging av yuav tsum yog lub hauv paus ntsiab lus. Feem ntau, qhov luaj li cas thiab hardness ntawm cov av hais yog qhov tseem ceeb rau kev hnav ntawm qhov chaw dredging, nrog pob zeb yog qhov tseem ceeb tshaj plaws, tom qab ntawd pob zeb, xuab zeb, xoob av, thiab av nkos, thiab txo qis raws li.
Hauv kev kawm txog qhov loj me ntawm cov av xuab zeb, nws tau pom tias feem ntau, cov khoom tsis zoo ntawm polygonal coarse particles (coarse xuab zeb particle loj dua 2 hli) muaj qhov hnyav tshaj plaws hnav ntawm qhov chaw dredging.
Lwm yam uas ua rau hnav thiab tsim kua muag ntawm qhov chaw yog qhov ceev ntawm cov av nkos los ntawm cov kav dej. Kev hnav ntawm lub luj tshib yog ntau dua li cov kav dej hauv av. Yog vim li cas rau qhov no yog tias lub zos yang quab yuam ntawm cov av nkos ua rau hnav thiab tsim kua muag ntawm qhov chaw dredging los ntawm cov av dredging. Kev hnav thiab tsim kua muag ntawm ntau hom dredgers kuj txawv ntawm qhov chaw thiab daim ntawv.
Cov khoom hnav ntawm tus kheej-propelled rake suction dredger yog tshwm sim nyob rau hauv qhov chaw xws li lub taub hau rake, av nkos twj tso kua mis (xws li lub impeller, hauv ob sab phlu, lub plhaub twj tso kua mis), suction thiab tso cov kav dej, thiab av nkos chute hauv cov av nkos tank; Cov khoom siv ntawm lub tshuab nqus tsev twj tso kua mis tau tshwm sim nyob rau hauv cov chaw xws li lub tshuab txiav, av nkos twj tso kua mis (lub tog raj kheej, lub tog raj kheej, thiab lub twj tso kua mis), lub tshuab nqus dej thiab cov kav dej tawm (xws li cov kav dej thiab cov kav dej hauv av), thiab lwm yam; Kev hnav thiab tsim kua muag ntawm cov saw thoob khib nyiab tau tshwm sim hauv cov chaw xws li cov thoob av nkos, cov npoo thoob, thiab cov av nkos; Kev hnav thiab tsim kua muag ntawm lub rub thiab lub thoob dredger feem ntau tshwm sim hauv lub thoob lub cev thiab lwm qhov chaw.
Lub degree ntawm hnav thiab tsim kua muag ntawm dredged av ntawm ntau hom dredger chaw kuj txawv. Kev hnav thiab tsim kua muag ntawm lub cutter suction dredger yog qhov hnyav tshaj plaws, thiab lwm yam dredgers yog teem rau hauv kev txiav txim ntawm tus kheej-propelled rake suction dredger, saw thoob dredger, thiab lob thiab thoob dredger.
