Study On Danger Zoning And Visualization Of Mined Out Area In Gypsum Mine In Cangshan County

As we all know,the safety production is the key play of the mining enterprises.The control of the goaf is the necessary condition for the safety production of the mining enterprises.This paper mainly studies the zoning and visualization of the risk of the gypsum goaf in Cangshan County,and adds a brick to the treatment of the gypsum mine goaf in Cangshan county.With the passage of time,due to the use of room column mining in gypsum mine,the area of left goaf area is increasing and the degree of risk is getting higher and higher.Although some research achievements have been made in the aspects of monitoring,prediction,and stability evaluation of goaf at home and abroad,there are some factors affecting the formation of the Goaf Collapse.The existing research results have a certain degree of difficulty in the actual prediction application,making the collapse of the goaf in a passive low level regulation state.In the results of the study on the subsidence of the goaf,because the actual research environment of the scholars and experts from various countries is different,they choose the research route,the research method and the core technology from different research angles,and their applicability,practicality and rationality have their advantages.This paper takes into account the characteristics of the uneven distribution and zoning of the collapse of the goaf,as well as the practicality of the plaster mining area to collect available data.These characteristics are more inclined to qualitatively explain the relationship between the collapse of the goaf and the indexes,which are difficult to quantify,and the practical application is not strong.Therefore,this paper wants to seek a qualitative and quantitative comprehensive analysis method to predict and zoning the collapse of the goaf.In this paper,taking the subsidence of the goaf in the gypsum mine in Cangshan County as the research object,through the statistics and Research on the collapse of the gypsum mine in the past years in Cangshan County,this paper analyzes the internal relations between the various influence factors and the danger of the collapse in the goaf,and establishes a comprehensive model of the prediction of the collapse of the goaf,and then the dangerous area of the Goaf Collapse is realized.Regionalization and prediction of domain.The specific contents of the study are as follows:(1)study on the mechanism of surface subsidence in the goaf;through the study of the ground subsidence mechanism of the goaf,it is clear that the depth of the mined out area and the thickness of the mining layer(that is,the height of the mining or the height of the pillar)is an important index to predict the danger of the surface subsidence in the goaf.(2)analysis of the influence factors of the collapse danger of the goaf;through the analysis of the failure mechanics of the roof and pillar,the thickness of the gypsum layer,the area of the goaf,the size of the plaster pillar,the distribution form,the geological structure and the mining conditions are all the important indexes for the collapse of the goaf.(3)the establishment of a comprehensive model for the prediction of the risk of subsidence in the old goaf and the establishment of a comprehensive prediction model,this paper mainly adopts the existing data of the old goaf in Cangshan County,selects the Fischer method for modeling and analysis,and compares it with the actual situation of the old goaf,and confirms the correctness of the comprehensive prediction model.(4)the prediction of the danger of the unknown mined out area collapse,and the prediction and zoning of the risk of the unknown Goaf Collapse by using the comprehensive prediction model built in this paper.(5)research on risk visualization based on GIS technology.With the development of 3S technology,GIS technology has been developed rapidly in many fields.In this paper,the data and risk of goaf are managed by GIS technology.The status and risk level of the goaf on the MAP map are clear,and the government will provide auxiliary decision for the government to control the goaf.