Uniaxial compression and tension experiments have been done with rock and soil samples taken from Huangniba landslide Chongqing.In the process of fracture of rock and soil

acoustic emission signals have been recorded and the characteristics of acoustic emission of rock and soil in the failure process are displayed.In the process of uniaxial compression loading

acoustic emission energy signals increase with the increase of pressure

and in main fracture acoustic emission signals become stronger.In the process of creep loading

acoustic emission signals become stronger under the stage of pressure increasing

and become weaker and then tend to be unchanged under the stage of constant pressure.In tension test

two modes of failure of rock and soil are observed

referred to as main shock type and swarm shock type

respectively.Acoustic emission signals can reflect the loading process of rock and soil.The maxium acoustic emission energy is in positive correlation with the strengths of rock and soil.The acoustic emission energy signals become stronger with the increase of loading rate.