The experimental about the weak surface slop deformation and failure under earthquake effect

摘要

In order to study the law of containing the weak surface slope deformation and failure under earthquake action simulate under earthquake action deformation and failure of the model which is a single weak surface slope. Use the digital speckle correlation method to deal with the experimental results, and obtain displacement and strain of the slope model. From the experimental results: it can be found the displacement and strain are concentrated in the weak surface, with the continuous vibration, eventually leading to the slope failure. The model crack firstly appears in the top of the experiment picture, and extends downward along the weak surface, thus lead to the model slip. By the experiment picture analyze the causes of the cracks.