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Video: Ground Freezing and the Hetch Hetchy Water Supply Tunnel

November 6, 2012 rockman Comments Off on Video: Ground Freezing and the Hetch Hetchy Water Supply Tunnel

This is a great video showing the application of ground freezing to deep excavations in unstable soil and high groundwater table.  It’s also a nice overview of the reason the Hetch Hetchy project was undertaken, […]

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