Strain softening shear constitutive model and displacement change based structural plane control slope stability dynamic evaluation method

Abstract

The invention provides a strain softening shear constitutive model and displacement change based structural plane control slope stability dynamic elevation method, including landslide survey, stress analysis, building of an anti-skating force computing model, calculating of free face removal load, determining of structural plane shear constitutive equation, building of structural plane control slope body motion equation, calculating curves of displacement process of a potential slip mass and the like. Real-time stability status of the structural plane control slope can be judged dynamically bythe method according to field deformation monitoring documents. Long-term stability of the structural plane control slope of rock can be predicted to a certain degree according to the calculated convergence of the displacement of the slip mass.

Description

technical field [0001] The invention relates to the technical field of geological disaster prediction and forecasting, in particular to a rock slope stability evaluation method based on displacement development process. Background technique [0002] The current design of geological disaster control for slopes generally adopts the static design based on norms. Its obvious deficiency is that the geological body is regarded as a rigid body, and the deformation and failure mechanism of the geological body and the process of geological disasters are not fully considered. Although the catastrophe evolution process and mechanism of high rocky slopes are very complex, the macroscopic manifestation must be that the slope body deforms, and the location and amount of deformation change continuously with the development of the catastrophe process. The instability process of rock slope has time-varying effect, that is, the whole deformation process shows obvious time-dependent deformatio...

AI Technical Summary

Problems solved by technology

However, in my country, on the one hand, landslide disasters are widely distributed, and problems such as engineering prevention, mechanism research, and prediction and forecasting need to be solved urgently, and almost all work depends on the monitoring data of landslides. The lack of theoretical calculation methods for slope protection slope deformation, a small number of studies focused on engineering numerical methods or empirical estimation based on measured values, the reliability is also low, and there are large differences between them and the actual situation

Images