Establishment of Groundwater Impact Assessment and Classification System for Excavation and Filling Sites in red beds area
In the red beds area of Sichuan Province,the construction of industrial sites will often carry out the field leveling project of digging mountains and filling trenches.After backfilling the drainage channel,the non-(semi-)consolidated soil site is formed and the groundwater discharge base level is raised locally,and various engineering geological problems are generated.This paper selects 9 impact factors from four aspects of natural geographic information,topographic and geomorphic information,geological information and hydrogeological information,using analytic hierarchy process to calculate the weight of impact factors,and classifies the evaluation factors.The comprehensive index method is used to quantitatively evaluate the influence of excavation and filling sites on groundwater,and finally the classification system of excavation and filling sites in the red beds area of Sichuan Province is established.
red beds areaexcavation and filling sitesgroundwater impactclassification system
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