Cross Passage :

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The Metro Tunnel cross passages will be constructed from below ground within the tunnels after the tunnel boring machines (TBM) have passed through. Provided to serve two primary purposes namely, emergency escape and maintenance work. In this paper, design, construction methodology and problem encountered during construction of one such structure has been described by analyzing case of a Cross-passage being constructed by client Instructions.

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The cross passages are generally constructed using traditional mining techniques to create a link between the two tunnels. These techniques typically include the use of ground treatment measures, excavators, rock breakers, rock bolting and shotcrete lining from within the tunnels.

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• Safe servicing for challenging situations.

• Ensuring the best quality results by a dust-free approach.

• Specializes in providing unique solutions to various issues.

• Guaranteeing a safe and clean environment from start to finish.

• All equipment are tested, tagged and serviced regularly.