Abstract
Simulation test for the process from sampling to unconfined and triaxial compression tests on undisturbed highly organic soil are performed with different anisotropic consolidation stress condition. The influence of anisotropy of consolidation stress on residual effective stress and unconfined compressive strengths are examined. From the test results, it is found that the unconfined compressive strengths decrease with the degree of consolidation stress anisotropy. It is also found that the unconfined compressive strengths of highly organic soil obtained from the tests of different anisotropic consolidation stress can be reasonably corrected by applying a simplified method which is formerly proposed by the authors.
