中文摘要：

采用岩石直剪流变仪对重庆武隆鸡尾山滑坡滑带（炭质泥质灰岩）进行了岩石饱水直接剪切流变试验。通过分析流变试验结果，从而得出滑带炭质泥质灰岩的剪应力－剪切位移曲线，进而得到软岩的长期强度。结果表明：炭质泥质灰岩饱水条件下与自然状况下流变强度和瞬时剪切强度参数相比，饱水状况下的长期强度有明显降低，饱水状况下炭质泥质灰岩摩擦系数比自然流变降低13.87％，比瞬时剪切的摩擦系数低40.91％；饱水状况下炭质泥质灰岩黏聚力比自然流变降低13.81％，比瞬时剪切获取的黏聚力降低36.67％。因裂隙损伤扩展，饱水条件下长期抗剪强度比自然状况下长期抗剪强度有所降低，但是没有直剪流变试验长期抗剪强度与瞬时抗剪强度相比降低显著，为深入认识和分析鸡尾山滑坡滑带软岩的流变力学特性提供重要的试验和依据。

英文摘要：

The water-saturated direct shear rock rheological test is carried out on the carbonaceous argillaceous limestone at the slip zone of Jiweishan landslide,Wulong,Chongqing.A rock direct shear rheometer is used.The rheological test results give the shear stress-shear displacement time-history curves of the slip zone and the long-term strength parameters of the rock.The results show that:the long-term strength in the water-saturated conditions significantly decreases,comparing to the rheological strength in the natural conditions and the instantaneous shear strength parameters.The internal frictional coefficient of the carbonaceous argillaceous limestone in the water-saturated conditions is lower than that of natural rheology 13.87%,and lower than that of the instantaneous shear 40.91%.The cohesion of the carbonaceous argillaceous limestone in the water-saturated conditions is lower than that of natural rheology 13.81%,and lower than that of the instantaneous shear 36.67%.Because of the crack damage propagation,the long-term shear strength in the water-saturated conditions decreases,comparing to that in the natural conditions,but does not decrease significantly,comparing to the long-term shear strength of the direct shear rheological test and the instantaneous shear strength.These findings can provide the important experimental and theoretical basis for in-depth understanding and analysis of the rheological mechanical properties of the slip zone soft rock in Jiweishan landslide.