CALCULATION OF THE CORRUGATED METAL STRUCTURES DEFLECTED MODE UNDER INTERACTION WITH SOIL BACKFILL
Multivariate analysis calculations of testing conditions of yield hinge at the top of the arch tubes showed that the origin of the yield hinge, which takes place in the vault of CIM is performed only on the condition of the simultaneous, the adverse effects of the two factors (reasons): the assumption of inequality way beyond the permissible values without performing measures to eliminate or limit its speed train (first cause); reducing soil compaction of backfill below 90% (the second reason). In the absence of a cause of the origin of the yield hinge will not happen.