Scholarly record
ELECTRICAL RESISTIVITY MEASUREMENT FOR COUNTRY ROCK DISTURBANCE OF SHALLOW RAILWAY TUNNEL
Abstract
The roof of the tunnel and sidewalls are especially influenced by the tunnels shape and dimension. Rock engineering mostly concentrates the reasons of these disturbances to decide if they are stress induced or discontinuity governing deformations. In this study, it has been concentrated on two shallow tunnels which are 35-90 meters below the ground surface. They were opened in limestone rock mass containing lamination and cavities as well. Electrical resistivity measurements were used to determine the weakness zones around these tunnels. Extension of the weakness zone demonstrated that the disturbance around the tunnels were rock mass controlled instate of stress induced fracturing.
Publication details
References5
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