Ukunemba kwamamitha okugeleza kwerada kuthinteka kakhulu yizici ezilandelayo: Okokuqala, izimo zokufakwa—inzwa kumele iqonde ngqo ebusweni bamanzi futhi ifakwe engxenyeni yesiteshi esiqondile (akukho zithiyo okungenani izikhathi ezi-5 ububanzi besiteshi phezulu kanye neziphindwe kabili ububanzi besiteshi phansi) ukuze kugwenywe amasimu okugeleza aguquguqukayo (njengezikhukhula kanye nokugeleza emuva). Okwesibili, ukunemba kwamapharamitha anqamulayo—amaphutha ekufakeni usayizi nesimo sengxenye yesiteshi (isb., unxande, i-trapezoidal) kuthinta ngqo imiphumela yokubala ukugeleza. Okwesithathu, ukuphazamiseka kwemvelo—imisebe enamandla kagesi kagesi, imvula enkulu, inkungu eningi, kanye nenani elikhulu lezinto ezintantayo ebusweni bamanzi kungaphazamisa izimpawu zerada. Okwesine, uhlobo lwemishini—amamitha okugeleza erada ahlanganisiwe alinganisa ijubane kanye nezinga lamanzi ngokuvamile anokunemba okuphezulu kunalawo alinganisa izinga lamanzi kuphela. Ngaphansi kwezimo ezifanele (ingxenye evamile, insimu yokugeleza ezinzile, futhi afaniswe nama-weirs/flumes ajwayelekile), ukunemba kungafinyelela ngaphakathi kuka-±3%; ezimweni eziyinkimbinkimbi njengemifula yemvelo, ukunemba ngokuvamile kuphakathi kuka-±5% kuya ku-±10%.
Isikhathi sokuthunyelwe: Septhemba-28-2025