Maweirs anowanzo shandiswa senzira iri nyore uye inoshanda pakuyera kuyerera kwemvura mumigero yakavhurika. Weirs chipingamupinyi chakakomberedza upamhi hwemugero wakavhurika unoyerera mvura. Nekuyera kuyerera kwemvura muweirs, huwandu hwekuyerera kwemvura, inova huwandu hwemvura inopfuura nepakati penzvimbo yakatarwa panguva imwe chete, inogona kuverengerwa. Maitiro ekuverenga kuyerera kwemvura mumigero akakosha pakunzwisisa nekugadzirisa kuyerera kwemvura mumabasa akasiyana-siyana einjiniya uye ezvakatipoteredza.
Nzira yekuverenga mwero wekuyerera kwemvura kuburikidza ne weir yakavakirwa pamisimboti yeBernoulli, iyo inobatanidza kumanikidzwa, kumhanya uye kukwirira kwemvura panzvimbo dzakasiyana dziri pamutsetse wekuyerera. Kune weirs, mwero wekuyerera kwemvura pa crest unogona kuenderana nekukwirira kwemvura pamusoro pe crest, zvichiita kuti mwero wekuyerera kwemvura uverengwe.
Kuyerera kwehuwandu hwemvura kuburikidza negomba kunoverengerwa seizvi:
Q = C * L * H^(3/2)
Kupi:
Q = mwero wekuyerera kwehuwandu (mamita ekubikira pasekondi)
C = chiyero chekubuda kwemvura
L = kureba kwegomo reimba
H = kukwirira kwemvura pamusoro pegomo regungwa
Chiyero chekubuda kwemvura muweir (C) ichiyero chisina chiyero chinotsanangura chimiro, saizi uye hunhu hwekuyerera kwemvura muweir. Chinoonekwa nekuyedza uye chinosiyana zvichienderana nerudzi rweweir nemamiriro ekuyerera kwemvura. Kureba kwenzvimbo yeweir (L) uye kukwirira kwemvura pamusoro penzvimbo yeweir (H) zviyero zvemuviri zvinogona kuyerwa panzvimbo yacho.
Kuti ushandise fomura iyi, kukosha kweC, L, naH kunofanirwa kutariswa nekuyera kana kuverenga. Kana kukosha uku kwazivikanwa, mwero wekuyerera kwehuwandu kuburikidza ne weir unogona kuverengerwa uchishandisa fomura iyi. Zvakakosha kuziva kuti fomura iyi inotora kuyerera kwakafanana kwemvura pamusoro pe weir uye haifuratire chero kurasikirwa kwesimba kunokonzerwa nekuvhiringika kana kukweshana.
Kunzwisisa nzira yekuverenga huwandu hwemvura inoyerera kuburikidza nemaweirs kwakakosha kune mainjiniya, nyanzvi dzemvura, uye masayendisiti ezvakatipoteredza anobatanidzwa mukutarisira zviwanikwa zvemvura, kudzora mafashamo, uye hydraulic engineering. Nekuyera nemazvo uye kuverenga kuyerera kwemvura kuburikidza nemaweirs, sarudzo dzakavakirwa paruzivo dzinogona kuitwa nezvekugoverwa kwemvura, kufanotaura mafashamo uye kuongororwa kwemigumisiro yezvakatipoteredza.
Muchidimbu, mafomula ekuverenga kuyerera kwemvura kuburikidza nemaweirs anopa chishandiso chikuru chekuyera kuyerera kwemvura mumigero yakavhurika. Nekufunga nezvehuwandu hwemvura inobuda mumvura, kureba kwemvura, uye kukwirira kwemvura pamusoro pemvura, huwandu hwemvura inogona kutsanangurwa nemazvo. Kuumbwa kwacho kunoita basa rakakosha mukushandiswa kwakasiyana-siyana kwemainjiniya uye kwezvakatipoteredza, zvichibatsira mukutarisira mvura nenzira inochengetedza nharaunda uye kuchengetedzwa kwezvisikwa.
Nguva yekutumira: Chivabvu-26-2024