Study on the hydro-mechanical characterization of the calcareous concretion

Shinji Takeuchi, Hidekazu Yoshida, Sachiko Nakamura

Presentation information

[J] Oral

H (Human Geosciences ) » H-CG Complex & General

[H-CG23] Nuclear Energy and Geoscience

Sat. Jun 5, 2021 9:00 AM - 10:30 AM Ch.17 (Zoom Room 17)

convener:Eiji Sasao(Tono Geoscience Center, Japan Atomic Energy Agency), Shinji Takeuchi(Department of Earth and Environmental Sciences, College of Humanities & Sciences, Nihon University), Takuma HASEGAWA(Central Research Institute of Electric Power Industry), Chairperson:Takuma HASEGAWA(Central Research Institute of Electric Power Industry)

10:00 AM - 10:15 AM

[HCG23-05] Study on the hydro-mechanical characterization of the calcareous concretion

*Shinji Takeuchi¹, Hidekazu Yoshida², Sachiko Nakamura¹ (1.Department of Earth and Environmental Sciences, College of Humanities & Sciences, Nihon University, 2.Nagoya University Museum)

Keywords:Concretion, Hydraulic property, Mechanical property, Sealing, Geological disposal

Porosity distribution, hydraulic conductivity, and hardness distribution of concretions were measured in the Neogene Hayama Group to clarify the hydraulic-mechanical properties of concretions. As a result, it has been confirmed that the concretion has been lower permeable and harder than the surrounding host rock.