摘要
Abstract
In the Shanghai Region,shallow soil layers consist mainly of mixed silt-clay,mixed clay,and clay soils.These types of soil are characterized by certain qualities,including having a large void ratio,high water content,high compressibility,and low shear strength.These soils and their geotechnical qualities therefore influence construction and engineering considerations.This paper investigates the shearing properties of these three remoulded soils by using both consolidated quick shearing and slow shearing tests.During the tests,shearing displacement,vertical compression,and water content on the failure plane,were all measured.The results show that all soils hardened in the consolidated quick test using a vertical compression of 6 mm.The same was true using the consolidated slow test and a vertical compression of 0.2 mm,with the exception of the silt-clay soil.Through the study,relationships between shearing stress,shearing displacement,the amount of deformation,and the parameters of shearing strength were investigated.The results of the test were combined and differences in shearing properties of the soils were analyzed and discussed.These results provide useful information regarding the structural and mechanical characteristics of remoulded soil in the Shanghai region.关键词
粘性土/重塑土/直剪试验/结构性/剪切特性Key words
clayey soil/remoulded soil/direct shear test/structural characteristic/shearing characteristic分类
天文与地球科学
