PDA(PDA (Pile Driving Analyzer) method вася1191; PDA (Pile Driving Analyzer) используется для динамических испытаний целостности свай! Не путать с испытаниями свай статическими вдавливающими нагрузками!!! sega_tarasov)
reaction pile(Reaction Pile: An individual pile which provides the reaction load required to perform the load test on a test pile. During this process the reaction pile can be subjected to either an axial compression load or an axial tension load. Aiduza)