ABSTRACT
The Hybridnamic testing is a kind of falling-mass type rapid load test (RLT), by which several blows on a pile can be conducted easily and quickly. Hence, static load-displacement curve is constructed by connecting UnLoading Point (ULP) loads. This procedure is called UnLoading Point Connection (ULPC) method. ULP method or ULPC method is employed for cases of the relative loading duration T r = t L/(2L/c) greater than 5, where t L is loading duration, L is pile length and c is bar wave velocity. Segmental ULPC (SULPC) is proposed so that RLT can be employed even in cases of T r less than 5. A case study was carried out to demonstrate the applicability of SULPC. Load-displacement curve from RLT with the SULPC method was comparable to that from the conventional static load tests.
