Gis Technical Support, Evaluation Systems, Slope Stability Analysis Based On Genetic Algorithm

Slope is the soil body or the sock bodies with tilted dome, it's a kind of fundamental geologic environment in mankind engineering activity , Slope destabilization is globality fatal catastrophe, it usually brings disestimated loss to mankind life and property . A slope destabilization is usually the result of multi-factor's combined action. So the people have long studied analysis and evaluation of slope stability for a long time, tried to find more scientific and rational analysis and evaluation methods.People have obtained greatly achievement in slope stability analysis, generated many mature models and methods through the longly hard wok, But there are some problems such as information is very complex, various data can't combine organically and the calculation result is unreasonable in slope stability analysis. So the author generalizes predecessors' experience and uses the existing methods for reference, using a computer language named VB to make out a slope stability analysis evaluation system main for the soil slope based on studying the theory of the slope stability analysis and the technology exploitation of Geographical Information System(GIS).The author introduced GIS technology which has maximal special data management function, established the inner special database by using the GIS secondary exploitation com named MapX, combined graphical data with text data organically, so the system has powerful special functions and proceed various special operation and dynamical management. On the establishment of mathematical model of slope stability analysis, the theory adopted conventional limit equilibrium method -Swedish circle method(Fellenus) as the main analysis model, then simulates organic evolution process, optimizes model with the horizontal, vertical ordinate and radius of slip circle center as search variable based on genetic algorithm, accordingly obtained a kind of slope stability analysis evaluation method that can search the most dangerous sliding surface of slope in global ranger and calculate minimum safety coefficients based on local convergence. At last, this paper verifies rationality andscientificity of the method by engineering example, obtained satisfied effecto The whole system adopts the modularization method to develop by the software engineering <> System interface is amicability and design is rational, and it has some general functions of the general system and expandability except professional analysis function o It makes the system has some definite using value on the stability analysis of slope in facto...