ERT技术在生活垃圾填埋场堆填量分析应用研究

Analysis on Storage Capacity of MSW Landfill Using ERT Technology

非规范建设的存量垃圾填埋场往往采取钻孔方式进行填埋区堆填量测算,存在成本高、工期长、作业复杂、精度不足等缺点,不利于该类型项目整治工程的实施。为此,以生活垃圾卫生填埋场为研究对象,利用高密度电阻率法(MEM)结合电阻率层析成像(ERT)技术,对生活垃圾卫生填埋场的库容进行分析,并与AutoCAD Civil 3D模型构建数据进行比对。研究发现,与AutoCAD Civil 3D模型相比,基于ERT技术测算的填埋场库容估算值的差异为4.48%,数据偏差较低。同时利用ERT技术对生活垃圾堆体渗滤液积存量、垃圾沉降密度进行初步探究。探索出一种可替代钻探和测绘估算生活垃圾填埋库区垃圾堆体体量的高效技术方案,为后续非正规建设的存量垃圾填埋场项目开挖整治提供有效技术参数。

The traditional method of analyzing the storage capacity of non-standard municipal solid waste(MSW)landill is calculated by drilling,which has some shortcomings such as high cost,long construction period,complicated operation and insufficient accuracy.It is not conducive to the implementation of this type of project renovation project.In this paper,the standard MSW landfll was taken as the research object,and the multi-electrodes resistivity method(MEM)combined with the electrical resistivity tomography(ERT)technology were used to analyze the storage capacity of MSW landfill.It is found that compared with the AutoCAD Civil 3D model,the difference of landfllstorage capacity calculated based on the ERT technology was 4.48%,and the data deviation was less.What's more,the ERT technology was used to conduct preliminary research on the leachate accumulation and refuse settlement density of domestic garbage dump.An efficient technical scheme was explored,which can estimate the storage capacity of MSW landfill,replacing drilling and mapping and providing effective technical parameters for the subsequent excavation and restoration of non-standard waste landfll.