Research On The Stability And The Comprehensive Regionalization Of The Geologic Disasters In TongChuan

Being situated in the loess plateau area, TongChuan is greatly influenced by natural factors and artificial factors and all kinds of geologic disasters have happened, which severely restrict the sustainable development of regional society, economy and environment of TongChuan. This article applies geology engineering mechanics and the science of mining subsidence to analysis the deformation mechanism of the slope geologic disaster and the mining subsidence in TongChuan district. It explores the main factors that influence the process of the disasters. Based on the above-mentioned research, it uses the fuzzy pattern recognition theory and rate integral calculus method to research the stability of them. The results help people to adopt reasonable prevention measures; at the same time, they are used to study the comprehensive regionalization of geologic disasters.In TongChuan the study about geologic disasters is very limited. It mainly studied the mineral area. In order to meet the need of the disastrous prevention for the whole region, this article adopts the disastrous indexes which are the population, the buildings, the tillable field endangered by the disasters and the direct economy loses and utilizes grey clustering theory to divide the region into three areas. This article uses the growth density index of the unstable geologic disasters in all the counties to distinguish the two heavy disaster areas. The study results are satisfied with the real disastrous conditions of the each county. At last, it offers some suggestions about technology and management that prevent geologic disasters and they would be helpful for the decrease of the geologic disastrous loss. The importance of this article is the quantitative analysis principle during evaluation process based on the qualitative analysis. It puts a series of mathematical theories into practice. This paper has some theoretical value and practical value.