抄録
A new small diameter sampler with two chamber hydraulic pistons (45-mm sampler) was developed, and its applicability is examined through the unconfined compression tests and the standard oedometer tests for samples obtained from both the 45-mm sampler and the 75-mm sampler (75-mmin inner diameter) normally employed in Japan. The samples obtained from the 45-mm and 75-mm samplers have similar strength and consolidationbehaviors for Kasaoka clay deposits.