Some criterions for choosen navigation channel in dismembered river flow

Abstract

     The submembered river are one in four general rivers in quite large rivers in North, South and Middle of Vietnam, especially in Northern Delta, Mekong Delta in Vietnam. Flow processing in rivers are very complex because usual happenning for settlement flow within two invulets. Seldom case exits two invulets are also depth, to be used for transportation. Others, the main and auxiliary rivulet play an important part in season, this mean main and auxiliary role alternately. Therefore, choose rivulet for transportation is important subject, if choose is right then cannal flow shall to be stable longly and reduce invest capital for building trainning works, if choose cannal flow not right shall cause serious effects for waterway transportation in particular and exploit total rivers of concerned economic brand generically.