Open AccessDetermination and Application of Microscopic Index Rca in Evaluating the Mechanical Properties of Soils
Author(s) -
Riqing Xu,
Jiaqing Jiang,
Yujiang Hua
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/690/1/012008
Subject(s) - soil water , porosity , macro , index (typography) , materials science , geotechnical engineering , foundation (evidence) , void ratio , soil science , environmental science , geology , computer science , law , world wide web , programming language , political science
This paper presents an elaborated discussion on a soil microstructural index: the contact area ratio R ca , including its determination method and potential applications. Starting from the calculation of 3D porosity, a reliable threshold is obtained by introducing the connection between macro and micro properties of soils. and then the contact area ratio R ca could be well determined. Next triaxial compression test and SEM test are conducted and combined to investigate the evolution law of the microscopic contact area ratio R ca during the compression process. Finally, the application value of this micro index in the evaluation of soil mechanical properties is demonstrated by introducing two potential application, which lays the foundation for further research in this field.