Study And Application Of The Comprehensive Decision-making On Slope Treatment

In this paper, several works have been done for the purpose of studying and applying comprehensive decision-making on slope treatment, based on chasm slope of Jing Hu road and combined with usual decision-making method.Firstly, main influence factors to slope stability are analyzed and the usual treatment project of slope are cared. Each treatment project has its advantage, disadvantage, application circumstances and needs of collocation respectively. The paper compared anti-sliding pile with bolt, anchor rope, retaining wall, wall cutting and unloading bolt-shotcrete support in advantage, disadvantage and application circumstances detailedly.Secondly, the paper elicited usual decision-making methods, such as analytic hierarchy process, the integration of fuzzy comprehensive evaluation and analytic hierarchy process and cluster analysis based on fuzzy matter-element. Meanwhile, the paper applied it to project comparison in the treatment of slope. The most outstanding advantage of Analytic Hierarchy Process is to separate complicated problem into some layers and some factors, to carry on simple comparison and calculation between each factor, to get power ratio of different factor and provide basis for the choice of the best project. Fuzzy comprehensive evaluation can assess the object grade based on the value of fuzzy evaluation muster accorded to the maximum membership grade principle. Furthermore, it can endow the only score with the object. Matter, character and quantity is basic unit of the matter-element analysis method when it describes things, it can change qualitative analysis into quantitative index analysis. Matter-element analysis method combined with analytic hierarchy process and fuzzy comprehensive evaluation, which using Analytic Hierarchy Process to ascertain power ratio, using cluster analysis based on fuzzy matter-element to analyze the object grade, using the integration of fuzzy comprehensive evaluation and analytic hierarchy process to make the order of the slope treatment project. It come to a good effect in the project decision-making.Last of all, numerical simulation software are adopted in the test of project effect, when a slope treatment project are made according to analytic hierarchy process, the integration of analytic hierarchy process and fuzzy comprehensive evaluation and cluster analysis based on fuzzy matter-element, it can't intuitionisticly know mechanics effect of that project. Make use of FLAC-3D software to carry on emulation, the effect is very obvious.