Joint inversion of TEM and CT by local cross-gradient in full space

Yi Dong; Jingrui Li; Kunhong Zhou; Chunyu Liu; Mailong Xian

doi:10.1117/12.2692868

23 August 2023 Joint inversion of TEM and CT by local cross-gradient in full space

Yi Dong, Jingrui Li, Kunhong Zhou, Chunyu Liu, Mailong Xian

Proceedings Volume 12784, Second International Conference on Applied Statistics, Computational Mathematics, and Software Engineering (ASCMSE 2023); 127840B (2023) https://doi.org/10.1117/12.2692868
Event: 2023 2nd International Conference on Applied Statistics, Computational Mathematics and Software Engineering (ASCMSE 2023), 2023, Kaifeng, China

Abstract

In order to improve the exploration accuracy of the development range and water abundance of the geological body inside the working face by the mine transient electromagnetic method ('MTEM') under the condition of full space. The joint inversion method of MTEM and radio wave penetration ('CT') is adopted, in which TEM adopts quasi-two-dimensional inversion and discards the CT forward term in the objective function of joint inversion. Through numerical simulation, combined with least square algorithm and cross gradient algorithm, the effect of MTEM and CT joint inversion on detecting the development range and water abundance of geological bodies in working face is studied. The research shows that the joint inversion of MTEM and CT can locate the boundary of geological body finely and identify the water richness of geological body.

Citation Download Citation

Yi Dong, Jingrui Li, Kunhong Zhou, Chunyu Liu, and Mailong Xian "Joint inversion of TEM and CT by local cross-gradient in full space", Proc. SPIE 12784, Second International Conference on Applied Statistics, Computational Mathematics, and Software Engineering (ASCMSE 2023), 127840B (23 August 2023); https://doi.org/10.1117/12.2692868

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