Byung-Gon Chae

TL;DR: In this article, the authors reviewed the recent advances and the state-of-the-art in the essential components of the landslide hazard assessment, such as landslide susceptibility analysis, runout modeling, landslide monitoring and early warning, were reviewed.

TL;DR: In this paper, the microstructural evolution and hydraulic conductivity of bentonite in NaCl solution were investigated by in situ laser scanning microscopy (LSM) upon exposure to saline solution, the bentonite aggregate swells rapidly, followed by a longer period of more gradual swelling The expansion ratio of an aggregate reached a steady state 15 min after initial exposure to the solution.

TL;DR: In this article, the fracture roughness of rock specimens is observed by a new confocal laser scanning microscope (CLSM; Olympus OLS1100), where the wavelength of the laser is 488 nm and laser scanning is managed by a light polarization method using two galvano-meter scanner mirrors.

TL;DR: In this paper, a real-time monitoring system was used to observe physical property changes in soils in a valley during rainfall events, which was compared with the results of laboratory flume tests to identify landslide indicators in the soils.

TL;DR: In this paper, a modified equation of infinite slope stability analysis based on the concept of the saturation depth ratio was presented to analyze the slope stability change associated with the rainfall on a slope.