CAJ | 학술논문

常规的瞬变电磁反演用半空间响应乘以全空间响应系数来拟合观测数据，具有一定的局限性；直接进行全空间反演，瞬变电磁场的空间不可分性会导致反演结果的不稳定。针对以上问题，提出了基于镜像模型的矿井瞬变电磁全空间反演方法，编制了反演程序。对低阻模型、受巷道后方高阻影响的低阻模型、受巷道后方低阻影响的低阻模型进行了反演试算，结果表明：基于镜像模型的全空间反演方法能够准确反演出掘进工作面前方的低阻地质异常体，巷道后方的高阻体不会影响对前方低阻地质异常体的判断。
상규적순변전자반연용반공간향응승이전공간향응계수래의합관측수거，구유일정적국한성；직접진행전공간반연，순변전자장적공간불가분성회도치반연결과적불은정。침대이상문제，제출료기우경상모형적광정순변전자전공간반연방법，편제료반연정서。대저조모형、수항도후방고조영향적저조모형、수항도후방저조영향적저조모형진행료반연시산，결과표명：기우경상모형적전공간반연방법능구준학반연출굴진공작면전방적저조지질이상체，항도후방적고조체불회영향대전방저조지질이상체적판단。
The conventional inversion method based on half -space response multiplied by whole spatial re-sponse factor has some limitations.The direct whole space inversion will lead to instability of the inversion re-sults.To solve the above problem , the paper presents mine transient electromagnetic whole -space inversion method based on mirror model.The inversion of low resistivity model , low resistivity model affected by high resistance and low resistivity model affected by low resistance show that:the method of mine transient electro-magnetic Whole-space inversion based on mirror model can inverse the geological low resistivity anomalies in the front of heading face accurately , and the high resistivity of rear of the roadway will not affect the judgment for geological low resistivity anomalies in the front of the roadway.