Dam ɗin Wolwedans

Dam ɗin Wolwedans
Wuri
Ƴantacciyar ƙasa	Afirka ta kudu
Province of South Africa (en)	Western Cape (en)
Coordinates	34°01′S 22°13′E
Karatun Gine-gine
Tsawo	70 m
Giciye	Groot Brak River (en)
Service entry (en)	1990

Dam din kankare ne na Afrika na kudu

Dam ɗin Wolwedans, wani dam ɗin kankare ne a Afirka ta Kudu da ke kan babban kogin Brak kusa da Mossel Bay, Western Cape, Afirka ta Kudu . Dam ɗin shi ne babban hanyar samar da ruwa ga ƙaramar hukumar Mossel Bay da kuma matatar gas-zuwa-ruwa PetroSA . Dam ɗin yana aiki ne musamman don samar da ruwan sha na birni da masana'antu.

Zane

Wolwedans Dam

An kammala shi a farkon shekarar 1990, shi ne na farko a cikin duniya guda ɗaya madatsar ruwa mai ƙarfin nauyi da aka yi da simintin abin nadi wanda ya dogara da cikakken aikin baka mai girma uku don samun kwanciyar hankali. Babbar madatsar ruwa mai tsayin mita 70 yana da fuskar sama a tsaye da kuma fuska mai gangara a gangaren 0.5:1 (H:V). Yana da radius extrados akai-akai na 135 m da tsayin crest na 268 m. Ƙarfin da ba ya zubewa yana da faɗin mita 5. An gina dam ɗin ne da siminti mai kauri mai kauri mai tsayin mita 0.25 tare da haɗaɗɗen haɗin gwiwa a tazarar m 10 tare da cire ɗaure kowane Layer na 4. RCC kusan 200,000 cubic metres (260,000 cu yd) an sanya shi a cikin watan Oktoba da Nuwambar 1988 da tsakanin watan Mayu da Nuwambar 1989. Abubuwan haɗin gwiwar da aka haifar an grouted a cikin hunturu, tsakanin Yuli da Nuwambar 1993. An cika tafki mai ƙarfi a cikin shekarar 1992.

Haɗin babban manna RCC

Siminti na Portland	Tashi Ash	Ruwa	M Tari	Tari mai kyau
kg/m 3	kg/m 3	kg/m 3	kg/m 3	kg/m 3
58	136	100	1510	625

Abubuwan haɗin RCC sun kasance:

• Yawan RCC: 2,400 kg/m ³
• Matsakaicin ƙarfin matsi na shekara 1 RCC: 35 megapascals (5,076 psi)

Duba kuma

• Jerin tafki da madatsun ruwa a Afirka ta Kudu
• Jerin sunayen koguna na Afirka ta Kudu

Bayanan kula

• Nadi-Compacted Concrete Dams, ICOLD, Bulletin 126
• Jerin Madatsun Ruwa na Afirka ta Kudu daga Sashen Kula da Ruwa