Open AccessInfluence of silt content on shear strength of sandy soil
Author(s) -
Jinbu Li,
Hao Geng,
Guorong Zhang,
Guangri Jin
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 - 10.1088/1755-1315/768/1/012088
Subject(s) - cohesion (chemistry) , silt , friction angle , water content , geotechnical engineering , internal friction , saturation (graph theory) , direct shear test , materials science , shear strength (soil) , geology , mineralogy , soil water , soil science , shear (geology) , composite material , chemistry , mathematics , geomorphology , organic chemistry , combinatorics
Direct shear tests were carried out on silt standard sand specimens with four silt contents of 0%, 5%, 10%, 20% under three conditions of average maximum dry density, optimal moisture content and saturation, respectively. The effects of different contents and different states on internal friction angle and cohesion of sand specimens were studied. It is found that the internal friction angle and cohesion increase with the increase of silt content under the condition of average maximum dry density and optimal water content, and with the increase of silt content, the internal friction angle decreases and the cohesion increases in saturated state.