Key technologies and risk management of deep tunnel construction at Jinping II hydropower station

The four diversion tunnels at Jinping II hydropower station represent the deepest underground project yet conducted in China, with an overburden depth of 1500–2000 m and a maximum depth of 2525 m. The tunnel structure was subjected to a maximum external water pressure of 10.22 MPa and the maximum si...

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Bibliographic Details
Main Authors: Chunsheng Zhang, Ning Liu, Weijiang Chu
Format: Article
Language:English
Published: Elsevier 2016-08-01
Series:Journal of Rock Mechanics and Geotechnical Engineering
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1674775516300142