Baru Chung, Seoul, Seoul, South Korea, Jaehyung Yu, Chungnam National University, Daejeon, South Korea, Sang-Mo Koh, Korea Institute of Geoscience and Mineral Resources,, Daejeon, South Korea, Bum Han Lee, Korea Institute of Geoscience and Mineral Resources, Daejuon, South Korea and Kim Nam-Hoon, Seoul National University, Civil and Environment Engineering, Seoul, Korea, Republic of (South)