BC Hydro has now completed work on stage 1 of the Elsie dam upgrade in Vancouver lsland, Canada.The dam, part of the 27MW Ash river hydroelectric facility built in 1958, is being upgraded to resists major seismic even...BC Hydro has now completed work on stage 1 of the Elsie dam upgrade in Vancouver lsland, Canada.The dam, part of the 27MW Ash river hydroelectric facility built in 1958, is being upgraded to resists major seismic events. Darn safety investigations had shown that a thin layer of saturated loose material in the main dam at approximately el 326m would liquefy during a major earthquake.展开更多
文摘BC Hydro has now completed work on stage 1 of the Elsie dam upgrade in Vancouver lsland, Canada.The dam, part of the 27MW Ash river hydroelectric facility built in 1958, is being upgraded to resists major seismic events. Darn safety investigations had shown that a thin layer of saturated loose material in the main dam at approximately el 326m would liquefy during a major earthquake.
