科罗拉多矿业大学Ning Lu教授开展“非饱和土力学前沿科学问题”系列云讲座

9月16日至11月18日，应建筑与土木工程学院邀请，美国科罗拉多矿业大学Ning Lu（卢宁）教授开展了“非饱和土力学前沿科学问题”系列云讲座，来自中国科学院地质与地球物理所、中国科学院武汉岩土所、中国科学院成都山地所、上海交通大学、南京大学、北京交通大学、西北农林科技大学、长安大学、合肥工业大学、宁波大学、湖北工业大学、桂林理工大学、台州学院、北京双杰特公司和我校共15家单位的同行专家、博士后、博士生、硕士生共同聆听了该系列讲座。

该系列讲座聚焦于非饱和土力学前沿领域，围绕土的吸附势（Soil sorptive potential）与土的有效应力（Soil effective stress）2大主题，Unsaturated Soil Mechanics: fundamental challenges, breakthroughs, and opportunities；Linking soil water adsorption to geotechnical engineering properties I: physics laws；Linking soil water adsorption to geotechnical engineering properties II: physics principles；Linking soil water adsorption to geotechnical engineering properties III: physicochemical and geotechnical properties；Soil sorptive potential: concept, theory, and verification；Soil sorptive potential: experimental validation and determination；Soil sorptive potential: vapor sorption isotherm theory: BET theory；Soil sorptive potential: vapor sorption isotherm theory: augmented BET theory；Soil physicochemical properties: specific surface area；Soil physicochemical properties: cation exchange capacity；General soil water retention curve: capillary vs adsorption；Soil sorptive potential: soil water sorption hysteresis mechanism；Soil effective stress: classical theories of Terzhaghi, Bishop, and Fredlund and Morgenstein；Soil effective stress: contemporary theory of Lu et al.-suction stress characteristics curve；Soil effective stress: unified theory for capillary and adsorption；Soil effective stress: determination by shear and tensile strength, by soil water retention, and by soil shrinkage behavior；Soil effective stress: soil shrinkage behavior；Soil water potential: concepts, physical basis, general forms, and challenges18讲内容，听完讲座后，大家各抒己见展开了热烈讨论。