Study On The Characteristic Of Stress And The Sensitivity Of Parameters In Rockmass Slope

The rockmass slope is very familiar in mountain area high-grade highway construction. Under the influence of the natural function and human activity, the inner part of the rockmass slope will carry on the adjustment of equilibrium, the stabilization state will also change accordingly. Nowadays, the monitoring mostly control the losing stabilization process of the slope with the displacement as parameter, not to consider the breakage characteristic of the highway rockmass slope. This kind of monitoring method that aims at the mature coast can't overcome the time-lagging blemish for rockmass slope. Therefore, in order to master and forecast the safety trend of slope as early as possible, there is necessary to study the stress change characteristic inner part of slope during the process of slope construction and balance adjustment.Combining with the characteristics of highway rockmass slope, the dissertation study the characteristic, variety regulation of stress field and the sensitive part during the process of load, the change of safety state from the angle of stress. In this foundation, take the proportion of the biggest shearing stress in the toe of the slope as the appraisal target, discuss the stability of rockmass slope which is influenced by the change of the various parameters, and analysis the sensitive degree of the stability to various parameters. Have made it clear that the cohesiveness has obvious effect to the stability of slope, and it is the governing factor for the stability of slope, and, the effect of inner friction angle is also obvious.