Detection method for soil shear strength index

• Main Authors: DU YONG, ZENG GUOHONG, HE BIN, HE WUBIN, MA FULI, LIU JIANPING, BAI XIAOHONG, CHEN YOUJIA, DONG XIAOQIANG, HAN PENGJU
• Format: Patent
• Language: English
• Published: 20.05.2015
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention relates to a detection method for a soil shear strength index, and particularly relates to extension of a traditional direct shear test method. The detection method is characterized in that the overall stress characteristics of soil are adequately considered, and the overall sliding situation of a soil slope is further analyzed, so that the sliding damage of the soil slope can be relatively comprehensively reflected. An angle between large main stress and a damaged surface is controlled when the soil is damaged, and maximum shear force on the soil along a damaged surface can be quantitatively analyzed when the soil is damaged, so that the shear strength of the soil can be obtained. By changing an oblique angle of a soil test sample box in the test for multiple times, the anisotropism of the soil is adequately considered, and the uncertainty of the instability of the soil slope can be reflected.