Title: STUDY ON INFLUENCE FACTORS OF SHEAR STRENGTH INDICES OF FINE GRAINED SOIL IN THE CONDICTION OF SLOW SHEAR TEST
Abstract: Shear strength indices of soil is a significant calculation parameters in engineering design,which influence the success and failure of engineering directly.Fine grained soil which is of poor engineering properties distributes largely and widely in practice,and its shear strength indices is affected by multiple factors.Because it varies complicatly,it is difficult to determinate precisely.On the basis of the actual investigation,void ratio,water content and plastic index are considered in this paper as mainly influence factors.Influence factors of shear strength indicators of fine grained soil is studied utilizing the orthogonal design approach and direct shear test.According to testing result,sensitivity coefficient of shear strength indices for every factor is calculated.And sensitivity degree of shear strength index is analyzed.Regression equation between cohesion and internal friction angle and void ratio,water content and plastic indicators are created by use of multiple regression method.Because their correlation coefficient are 0.96 and 0.99,it is showed that there are excellent correlative.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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