采用高速环剪试验机对滑带土环剪特性的研究

Research on using high-speed ring shear test machine to soil slip ring shear characteristics

以泾阳南塬黄土滑坡滑带土为研究对象,采用高速环剪试验机进行环剪试验,研究了不同含水率、剪切速率对滑带土环剪特性的影响,结果表明:土样强度参数内聚力和内摩擦角均随含水率的增加而降低;随着剪切速率的增加而增加;土样的环剪强度随有效法向应力的增大而增大,呈现出较强的近线性关系。

Taking the sliding zone in South Jingyang plateau loess landslide as the research object,using the high-speed ring shear test machine made ring shear test,researched the influence of different water content,shear rate to sliding zone ring shear characteristics,the results showed that the soil strength parameters cohesion and internal friction angle increased with the increase of moisture content decreased,increased with the shear rate increased,the soil ring shear strength increased with the increase of effective normal stress,showed stronger linear relationship.