Enhancement of Load-Bearing Capacity of Earth Anchors with Flexible Tendon
A. A. KRAMADZHYAN, E. P. RUSIN, S. B. STAZHEVSKY, G. N. KHAN
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Krasnyi pr. 54, Novosibirsk, 630091 Russia
Keywords: earth anchor, flexible tendon, interaction with support, friction force, Euler formula, discrete element method
Abstract
Under tension of cable interacting with ground, implementation of the effect described by the Euler formula for a tensile cable that envelops a fixed support is experimentally proved. Model and field experiments show essential rise in the load-bearing capacity of earth anchors with flexible tendon-E-anchors, owing to this effect. Equipment for installation of the anchors is designed and trialed. Using DEM, a 2D problem on the efficiency of the new anchors as a function of direction of uplift force applied to the tendon is solved. The article illustrates application areas of E-anchors in construction and operation of engineering structures.
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