摘要
在煤巷超前探测灾害性含、导水构造双频激电法解析的数学模型基础上,分析了双频激电法超前探测灾害性含、导水体时的二极、三极跑极的不同布极方式的优劣。对不同布极方式理论地分析了关键目标参数——含、导水体的侧偏角、厚度及其到掘进断面的距离,以及对fs-R正演曲线影响。理论研究表明:相同条件下二极跑极与三极跑极相比,前者探测效率高,不易丢失反演信息,而后者对关键目标参数的探测分辨率较高。
Based on the analytic mathematic model of dual-frequency induced polarization(IP) method,which is applied in mining water-bearing or water-conducting structures ' advanced detection,analyzed advantages and disadvantages of the double-electrode and triple-electrode arrangement. For different electrode arrangement,the relationship between parameters and the fs-R forward modeling curve are detailed. The theoretical research shows that,the detecting efficiency of the double-electrode arrangement is high and the inversion information is well,meanwhile,the triple-electrode arrangement has better detecting resolution of target parameters.
引文
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