Design & Construction of NATM Scissor Crossover

The construction of underground structures in metro rail projects is always challenging as the
project works normally affect a large number of adjacent surface structures with stringent
settlement criteria and protection requirements. Project implementation becomes even more
complex when the overburden is shallow and the area of the cross-section is comparatively large,
crossover structure had to be constructed between the twin TBM Bored tunnels, for optimized
construction feasibility, construction staging and geotechnical stability of the excavation are
critical, the detailed design of the primary support and modified construction sequence was carried
outin accordance with the principles of NATM design.


Consulting Engineers Association of India

Webinar Details

Date – 10th May 2023

Time – 4.00 PM IST

Webinar Speaker

Mr. Prathap Muniyappa

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