Abstract

With the rise in the water level of the Three Gorges Project, accurately measuring the shear strength parameters of the Three Gorges Project shore landslide has important implications for the safety of the Three Gorges Project’s surrounding area. Due to the material of reservoir area slope is complex, are mostly loose accumulation, these loose accumulation are mainly composed by landslide deposits, eluvia material, alluvial matter, landslides, strong weathered, and material composition is soil with gravel or fragments stone, the conventional small specimens test has been impossible. Badong County has long rainy season, abundant rainfall, mudslides, landslides and other geological disasters are frequent, so measuring reservoir landslide shear strength of Badong County is particularly important. Therefore, this paper takes the gravel soil of piled crushed landslide of the third senior middle school in Badong County as the research object, through lab large-scale direct shear test to research the gravel soil strength parameters’ variation of the soil samples with different coarse soil content under different moisture conditions.

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