Effective Stress and Equilibrium Equation for Soil Mechanics

Dr. Longtan Shao is a professor in the Department of Engineering Mechanics, Dalian University of Technology, Dalian, Liaoning, China. He was born in China, where he obtained his bachelor degree, master degree and Ph.D. from Dalian University of Technology. He has been engaged in the research on the theory of soil mechanics, geotechnical testing technology and equipment development, and stability analysis of soil structures.Dr. Xiaoxia Guo is a Senior Engineer in the Department of Engineering Mechanics, Dalian University of Technology, Dalian, Liaoning, China. She was born in China, and obtained bachelor, master and doctoral degrees from Dalian University of Technology. She has been engaged in the research on soil constitutive model, geotechnical testing technology and equipment, and stability analysis of soil structures.Dr. Shiyi Liu obtained B.S. degree from Jilin University and Ph.D. degree from Dalian University of Technology. He joined the School of Resources and Civil Engineering at Northeastern University (Shenyang, China) as a Lecturer in 2016. His major research interests are slope stability analysis, lateral earth support structures and underground excavation. Guofeng Zheng is a Ph.D. student in the Department of Engineering Mechanics, Dalian University of Technology, Dalian, Liaoning, China. His major research interest is the properties of unsaturated soils.