The Application Of Interval Analysis In Slope Engineering

In our country, the stability of the slope project is a crucial issue in water utilities, roads, railways and the construction of the mineral resource development, Slope project is very important in various projects. Since the formation of rock is a extremely complex process, As a result it exist substantial fissures, pore, groundwater, so it is a non-continuum of combination lots of medium, Physical characteristics is very complex. Awareness about it by people is a certain ambiguity and limitations, many rock mechanics parameters, often can provide a certain interval scope changes. For analysis of slope stability, the safety factor definition of the existing is established on the basis of certainty parameters. Thus, it is necessary to introduce uncertainty analysis model to analysis them. In this, we made a preliminary study and exploration of the application in the slope stability analysis for interval models .The main elements are as follows:(1) Introduce the basic theory of interval mathematics, the basic principles of interval limited element methods, and now several Interval equations perturbations reconciliation. And make a comparison through Specific cases. In addition to study the perturbations examined several bands, identified reasonable band, to obtain more precise numerical solutions.(2) Combined rigid body limit balanced approach and interval theory, made Bishop slope safety factor expressed in the form of interval, through count cases, calculate slope safety factor interval, can made a assessment of slope safety with the conditions of uncertain parameters.(3) Combined interval theory and limit balanced limited element, by the safety factor be based on the state should definition by Kulkawy, obtained the slope safety. factor derived by interval, similarly through a cases, compared the safety factor interval value and the safety factor of ordinary limited element million minimum value. with the non-linear parameters Issue which interval limit balanced limited element can not solve, Bishop interval models can be used to analysis. Through a combination of both, can better analysis the actual slope works with interval theory.(4) Lancangjian River Nuoza crossing right bank flood carrying hole as an example, made interval limit balanced and interval limited element analysis.