TY JOUR TI EVALUATION OF EFFORT INDENTATION OF PREFABRICATED REINFORSED CONCRETE PILES IN CLAY SOILS KW prefabricated concrete piles KW pile indentation equip - ment KW finding of effort indentation KW load-bearing capacity of piles JO Construction and Architecture AU Polischuk, A.I. AU Nuykin, S.S. PY 2018 IS 6 PB Publishing Center RIOR