Plastic Mechanics of Geomaterial

YuanXue Liu has long been engaged in teaching and research in the field of constitutive relation of geomaterial and underground engineering. He has won 11 scientific awards at the provincial level, has published over 100 papers, and more than 40 indexed by SCI/EI, and has authorized 5 national invention patents. He has held 15 academic positions, such as the Standing Director of the Chinese Society of Information Technology and Application of Geotechnical Engineering, and editorial board member of Modern Tunnel Technology. He was adviser to two Chongqing outstanding thesis. He was selected for the Chongqing “322 Talents Project” in 2005, and received the young science silver medal of Chinese Society for Rock Mechanics & Engineering in 2006. In 2008, he was awarded the education silver medal, new star of science and technology, outstanding teachers at provincial level, and academic leaders in Chongqing. In 2014, he was elected as the Director of Chongqing Key Laboratory of Geomechanics and Geological Environmental Protection.   Yingren Zheng, Academician of Chinese Academy of Engineering, is a famous expert in geotechnical engineering. Abundant achievements have been acquired in the fields of underground engineering, slope engineering, Rock Mechanics, Plastic Mechanics of Geomaterial, limit analysis of geomaterial, regional soil and so on. He is the adviser of Chinese Society for Rock Mechanics & Engineering, Special Committee of Rock and Soil Mechanics of Chinese Society of Theoretical and Applied Mechanics, Chinese Industry Association of Geological Disaster Prevention and Control Engineering, etc. He is also the member of the National Emergency response team of Geological Disaster.

Introduction.- Stress and strain and its basic equations.- The basic mechanical characteristics of the geomaterial.- The elastic model of geomaterial.- Classical Plasticity Theory.- The development of the plastic theory of geomaterial.- The static elastoplastic model for geomaterial.- Generalized plastic mechanics considering the rotation of principal axis of stress.- The dynamic constitutive model of geomaterial .- Limit analysis for geotechnical engineering.