露天采矿技术OpencastMiningTechnologyVol.38No.3June.2023第38卷第3期2023年6月基于高密度电阻率法的多层采空区探测研究张忠政1，闫迪2（1.鞍钢集团矿业弓长岭有限公司露采分公司,辽宁辽阳111007；2.东北大学资源与土木工程学院，辽宁沈阳110819）摘要：针对露天金属矿山在规模化开发利用中遇到的多层充水型采空区精准探测的技术难题，选取鞍山-本溪地区某典型的BIF型深凹露天铁矿为对象，以识别其内发育的多层充水型采空区异常为出发点，以多层充水型采空区的地球物理特征为依据，采用高密度电阻率法为探测技术手段，选用抗干扰能力较强的温纳装置，在露天铁矿+128m采矿平台开展探测应用研究。研究成果表明：高密度电阻率法识别出了2处由采空区引起的地球物理异常，根据工程资料，其异常埋深分别在10~30m和21~43m之间，并确定为充水型采空区；高密度电阻率法对一定深度空间内的多层充水型采空区引起的异常具有较好的识别精度，对采空区顶板的裂隙发育程度也具有较好的识别效果。关键词：露天铁矿；多层采空区；高密度电阻率法；温纳装置；探测中图分类号：P631.3文献标志码：B文章编号：员远苑员原怨愿员远（圆园23）03原园园06原园4Researchondetectionofmulti-layergoafbasedonhigh-densityresistivitymethodZHANGZhongzheng1,YANDi2（1.Open-pitMiningBranch,AnsteelGroupMiningGongchanglingCo.,Ltd.,Liaoyang111007,China;2.SchoolofResourceandCivilEngineering,NortheasternUniversity,Shenyang110819,China）Abstract:Aimingatthetechnicaldifficultiesofaccuratedetectionofmulti-layerwater-filledgoafencounteredinthelarge-scaledevelopmentandutilizationofopen-pitmetalmines,atypicalBIF-typedeep-concaveopen-pitironoreinAnbenareawasselectedastheobjecttoidentifytheabnormalityofthelayeredwater-filledgoafasthestartingpoint.Basedonthegeophysicalcharacteristicsofthemulti-layerwater-filledgoaf,thehigh-densityresistivitymethodisusedasthedetectiontechnology,andtheWennerdevicewithstronganti-interferenceabilityisselected.Inopen-pitironmine+128mminingplatform,wecarryoutdetectionapplicationresearch.Theresearchresultsshowthatthehigh-densityresistivitymethodhasidentifiedtwogeophysicalanomaliescausedbythegoaf.Accordingtotheengineeringdata,theabnormalburialdepthsarebetween10耀30mand21耀43m...
