锚网支护下矿井瞬变电磁响应特征及处理技术研究  

Study of Mine Transient Electromagnetic Response Characteristics and Correction Method under Support Using Bolt and Wire Mesh

作　　者：周嗣辉[1] 于景邨[1,2] 常江浩[1] 苏本玉[1,2] 蒋宗霖 邢修举[1] 周璇[1] 

机构地区：[1]中国矿业大学资源与地球科学学院,江苏徐州221116 [2]深部岩土力学与地下工程国家重点实验室,江苏徐州221008 [3]中煤科工集团西安研究院有限公司,陕西西安710077

出　　处：《矿业安全与环保》2014年第3期17-19,23,共4页Mining Safety & Environmental Protection

基　　金：国家重大科学仪器设备开发专项基金项目(2011YQ03013307);江苏省自然科学基金资助项目(BK20130180);国家级大学创新训练项目(201310290027)

摘　　要：为了研究锚网支护对矿井瞬变电磁法探测造成的影响,利用物理模拟相似性准则,进行物理模拟实验和矿井试验,研究锚网支护的瞬变电磁响应特征,并提出处理方法。实际应用结果表明:受到锚网金属支护的影响,测得的二次感应电位数值明显增大,反演出来的视电阻率值明显变小,且对感应信号前期的影响大于后期。建立了锚网支护校正的数学模型,并提出新的数据处理方法,可有效剔除假异常,提高反演解释的精度。In order to study the influence of the support using bolt and wire mesh on the mine transient electromagneticdetection, physical simulation experiment and mine test were carried out according to the similarity criterion of physicalsimulation, the transient electromagnetic response characteristics and law under support using bolt and wire mesh were studied,and the correction method was proposed. The actual application results indicated that under the influence of the support using boltand wire mesh, the measured secondary induction potential value increased obviously, the inverted apparent resistivity valuedecreased significantly, and its influence on the induction signal at the early stage was greater than that at the later stage. Inaddition, mathematical model for transient electromagnetic detection correction under support using bolt and wire mesh was builtand a new data processing method was proposed, which can effectively remove the false anomalous and improve the accuracy ofdata inversion interpretation.

关 键 词：锚网支护 矿井瞬变电磁响应特征 物理模拟 数据处理 

分 类 号：TD35[矿业工程—矿井建设] P631.325[天文地球—地质矿产勘探]