Technical Model Evaluation Of Ecological Restoration Engineering Of Soil(Gangue) Field In Wuhai And Lingwu Coal Mining Areas

In this paper,located in the northwest arid desert in wuhai,Ling Wu coal mining area as the study area,in the mining area ecological restoration engineering of soil has governance(bottles)as the research object,using the principal component analysis,analytic hierarchy process(ahp)and aerial drones,quadrat investigation method,the displacement in the studied area(bottles)field site investigation and classification,and from the engineering measures,stability,adaptability and economy three aspects screening evaluation index and index standard,establish a set of suitable for northwest arid desert in wuhai,Ling Wu coal mining area of dump(bottles)evaluation system of ecological restoration engineering technology pattern;Finally,the evaluation system is used to evaluate the effect of the ecological restoration engineering technology model that has been managed in the local soil disposal(gangue)field,and to select the applicable ecological restoration technology model that can be popularized in the local area.The main findings are as follows.(1)13 site types and 8 typical technical models of soil discharge(gangue)field in mining area were proposed.Fourteen evaluation indexes were selected and criteria were determined to construct the evaluation system of technical model for ecological restoration engineering of soil(gangue)field in wuhai and lingwu mining areas.(2)no.11(ecological planting blanket slope protection + soil bag drainage + soil bag retaining wall + sprinkling irrigation)in wuhai city conveyor field,the ecological restoration effect of the slope is at a good level;8(brick frame frame framework slope protection + geotechnical cloth cover + drip irrigation),2(hedgerow slope protection + drip irrigation),9(direct seeding grass slope protection + drip irrigation),1(direct seeding grass slope protection + drip irrigation)the ecological restoration effect of the slope was at a poor level.Ecological vegetation bag slope protection + soil bag drainage + soil bag retaining wall + drip irrigation and ecological planting blanket slope protection + soil bag drainage + soil bag retaining wall + spray irrigation technology model is suitable for promotion in wuhai region.(3)the ecological restoration effect of the slope was at a good level in lingwu city's conveyor field no.7(direct broadcast irrigation grass slope protection + sprinkling irrigation),no.9(direct broadcast irrigation grass slope protection + sprinkling irrigation)and no.8(direct broadcast irrigation grass slope protection + sprinkling irrigation).6(live broadcast irrigated grass slope protection + grass grid sand barrier + drip irrigation),2(live broadcast irrigated grass slope protection + drip irrigation),3(live broadcast irrigated grass slope protection + drip irrigation)no.Direct broadcast irrigation grass slope protection + concrete retaining wall + intercepting drainage + drip irrigation technology model is suitable for promotion in lingwu area.