Ryota Hashimoto

The construction of infrastructure and buildings is an endeavor that creates safe spaces for human activity. During this process, there are many instances where soil is manipulated, such as digging the ground, piling soil to create structures with height, and establishing the foundations of buildings. The field of soil mechanics aims to elucidate the mechanical phenomena of soil that appear in these situations, thereby contributing to the construction of robust structures and disaster prevention. In particular, my research focuses on the development of numerical analysis techniques for assessing the mechanical behavior of soil and rock masses and applying these techniques to practical problems.
Specifically, I am developing simulators for deformation and failure of soils, which are multiphase mixtures consisting of solid particles (soil), liquid (water), and gas (air), as well as rock masses that contain internal cracks. Additionally, I am working on research topics that involve collaboration beyond the field of civil engineering. These include the development of countermeasures against dike breaches during floods, repair and preservation of heritage structures (cultural properties) that deteriorate due to soil failure, and the assessment of efficient soil cutting/excavation by construction machinery.