Monitoring And Analysis Of Slope Stability Based On Digital Image Measurement

In recent years,with the rapid development of China's urban transformation,real estate,highways and railways,as well as the expansion of industrial and mining enterprises a large number of slopes has emerged.The stability of the slope is related to the safety of the buildings,structures,transportation facilities,people and property.In order to minimize the damage caused by slope instability,many scholars began to study the real-time monitoring and forecasting of slope safety,in which a great many results have been achieved.With the rapid development of digital image measurement technology,digital image measurement technology has been applied to slope stability monitoring.The main work of this paper is as follows:1.the slope stability monitoring technology has been deeply investigated,and the advantages and disadvantages of different slope deformation monitoring techniques are summarized,and the stability evaluation method of slope is summarized.2.Based on the digital image measurement technology,a complete slope deformation monitoring system is established.The monitoring system includes CCD camera,signboard,measuring instrument,optical transceiver and measurement software.And the error analysis iscarried out.3.The geological data of the slope for this study were collected and the monitoring system of slope was installed on the slope;The finite element model of the slope is established by ANSYS finite element software to analyze the properties of the slope subjected to different damage.According to the failure characteristics of the slope,the warning value is set for the displacement when the slope damage reaches 50%,and the alarm value is set when the slope damage reaches 80%.4.The effects on stability factors of slope was analyzed and calculated by ABAQUS software,the stability of slope safety factor increases with the increase of inner friction angle and cohesion,and decreases with the increase of the slope angle,and the slope safety coefficient is independent to elastic modulus and Poisson's ratio.