Trending Tunneling Discussions

What is the impact of strike direction in Tunnels with Class 5 rock ?‎

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What will be the suitable pressure of contact grouting for a Headrace tunnel of 11m height?‎

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What does "SN Rock Bolt" means?‎

Full definition of "SN".‎

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What is the main influencing factor in the selection of tunnel cross section?‎

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What are the design specifications for shallow and deep tunnels?‎

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What is the criteria for choosing best tunnel route and tunnel alignment?‎

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Which "failure mode" is most effective on tunnel stability?‎

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Does the use of the rock mass classification systems have expired?‎

This question has been raised for open discussion about; "deficiencies of rock mass classification systems about properly explanation of rock mass behavior".‎

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Which cases can we use "yielding elements" as a tunnel support?‎

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When rock bolts should be tightened? What is the criteria for tunneling?‎

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