Research On Zoning Of Geological Environment Restoration And Management Of A Limestone Mine In Lingui Guilin City

In recent years,the ecological restoration of abandoned mines has been carried out in full swing,but the current mine ecological restoration effect is not ideal.This situation is caused by many aspects,and the key reason is that the actual mine geological environment restoration and management zoning study has not been conducted,resulting in a single,one-sided and blind means of mine treatment and restoration.In view of this,this paper uses UAV oblique photography technology to extract mine geological environment factors by constructing a real mine 3D model,and comprehensively considers mine geological environmental problems,mine geological environmental conditions and the relevance of ecological restoration technology.Arc GIS and analytic hierarchy process were used to carry out comprehensive evaluation of mine governance zoning,and on the basis of collecting,summarizing,summarizing and applicability analysis of mine regreening technology,a convenient system procedure for selecting ecological restoration technology was designed.The main results of this study are as follows:（1）Taking a limestone mine in Lingui,Guilin City as the research object,the three-dimensional solid model of the limestone mine was constructed by using the oblique photography technology of the UAV,and the DOM and DSM data generated.And on this basis,using GIS spatial analysis technology and FLAC^3D numerical simulation,the data of mine geological environmental problems such as dangerous rock,slope stability,slope,height,land occupation and damage,and slope type were extracted.（2）Comprehensively consider the mine geological environment problems,mine geological environment conditions and the relevance of ecological restoration technology,select six factors as dangerous rock,slope stability,slope,height,land occupation and damage,and slope type Evaluation factors.The weights of the evaluation factors were determined by the AHP.Based on the Arc GIS platform,a limestone mine in Lingui was evaluated on the restoration and management of the geological environment of a limestone mine.The result is that the green area of the site is 8.47×10⁴m2,accounting for about 51.15%of the entire mine area.The mine slope restoration green area covers an area of 3.21×10⁴m2,accounting for about19.36%of the entire mine area.The mine slope collaborative management green area covers an area of 4.89×10⁴m2,accounting for about 29.49%of the entire mine area.（3）On the basis of the induction,summary and applicability analysis of mine geological environment restoration and management techniques,using the Java Script programming language and if logic comparison language,a screening system program for mine geological environment restoration and management technologies was developed.Taking a limestone mine in Lingui,the study area as an example,the three-dimensional greening measures of site leveling greening,hanging net guest soil spraying greening and climbing up and down hanging were respectively selected for the three governance subregions of the mine.This paper provides a highly targeted solution ideas and methods for the management of mine geological environment problems and ecological restoration,making the selection of mine ecological restoration programs more scientific and comprehensive,and can provide a basis for mine geological environmental problem governance and ecological restoration.Technical Support.