Abstract
Due to severe harms of goaf collapse, the goaf exploration and governance has become an urgent issue for protecting the normal life of local people. According to the coal mine geology, different geo-electrical model s have been employed for the purpose of discovering the goaf s . However, most existing methods require a large amount of computation consumption. In order to address this issue, a forward numerical simulation using the borehole electromagnetic method has been developed in this work to explore the coal mining goaf s . The innovation of this method is that the computation consuming can be saved significantly. N umerical simulation demonstrates high effectiveness of the borehole electromagnetic method in coal mining goaf exploration. Therefore, this research provide s a new idea for exploring the coal mine goaf s by geophysical method . DOI: http://dx.doi.org/10.5755/j01.eie.22.4.15913
Highlights
1Abstract—Due to severe harms of goaf collapse, the goaf exploration and governance has become an urgent issue for protecting the normal life of local people
In order to address this issue, a forward numerical simulation using the borehole electromagnetic method has been developed in this work to explore the coal mining goafs
Since it is difficult to explore multilayer goafs by common geophysical method, a borehole electromagnetic method is developed in this work to address this issue
Summary
These collapses of mining goafs led to a great economic loss [1] and casualties as well as environmental deterioration [2]. A borehole electromagnetic method is developed to explore the coal mining goafs. To date, quite limited work has addressed the issue that using the borehole electromagnetic method to solve the problem of exploring the goafs. In order to solve this problem, a practical approach using staggered grid finite difference method is presented in this paper. The contribution of this work is that a borehole electromagnetic method has been developed to prospect coal mining goafs. Numerical simulations have been carried out to verify the effectiveness of the proposed method
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