HYPERBARIC INTERVENTION FOR INSPECTION OF CUTTER WHEEL OF A TBM: NUMERICAL ANALYSIS

Publication: Revista Obras Públicas (2013)

Authors: Ángel Del Amo, Carlos Herranz, Alberto González and Ángel Silvestre

Summary: The Spanish engineering firm INTECSA-INARSA is part of the design team of the SR99 tunnel in the United States, the largest diameter tunnel ever executed to date (17.56 m). The numerical analysis proposal is to define the dimensions and characteristics for treatment of the terrain to accommodate hyperbaric intervention.

 

The numerical analysis was centred on the variation of the pressures within the excavation chamber for the purpose of obtaining a minimum value which would guarantee good balance in relation to (1) the flow of water, (2) the earth movements and (3) the stability of the working face.

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