Site C: 2 million cubic metres of concrete is a lot of stability

Site C: 2 million cubic metres of concrete is a lot of stability


(rhythmic guitar music) – [Narrator] For decades leading up to the start of construction
of the Site C Project, BC Hydro has conducted
extensive geo-technical studies. These investigations
helped us to learn more about the shale bedrock near the dam site. And this was important in informing our design of the project. We decided to build an Earth Fill dam, which is well suited to
the geology at Site C. Building an Earth Fill
dam on similar foundations has been done in Canada,
and many other countries around the world. A supporting buttress
or foundation is used to ensure dam stability in all situations, including the unlikely
event of a major earthquake. At Site C, we’re currently
building the buttress that will provide a stable foundation for the powerhouse, the
spillways and the dam itself. The buttress is made using
roller compacted concrete. A special kind of concrete
with unique properties, that make it perfect for dam construction. This concrete is created onsite
then transported by trucks and conveyor belts, to the buttress. Once complete, the buttress will be approximately 800 meters
long, up to 70 meters high, and made up of approximately
two million cubic meters of roller compacted concrete. That’s six times the
volume of concrete used to build the Burj Khalifa tower, in Dubai. The buttress is part of our
commitment to international and Canadian dam safety practices. This work, along with work
in all the project areas, is constantly being monitored and overseen by engineers and international
dam safety experts. The concrete buttress will
provide a strong foundation, ensuring the Site C dam operates safely, for more than 100 years. (guitar cadence strum)

Author: Kevin Mason

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