engleski

Arch structure foundations in rock

The solution used for the design of foundations for a wild animal crossing over a deep trench during the construction of a highway in Croatia is presented. The foundation design of the crossing arch structure had to be changed after the excavation works revealed that the foundation rock, consisting of upper Triassic dolomite, was greatly heterogeneous. Several limit equilibrium and stress-strain analyses were carried out after the rock classification resulted in four rock and soil categories. Three different foundation types, satisfying the requirement of uniform rock deformations, were finally chosen. Horizontal displacements measured at the arch abut-ment show very good agreement with predicted values.

rock mechanics; foundation; engineering geology

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