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| THE APPLICATION OF THE INTEGRATED GEOPHYSICAL METHOD TO THE SURVEY OF THE MENGSHAN MINED-OUT AREA OF TAIYUAN |
| LIU Guo-hui1, LIU Zhi-yuan1, LI Da1, ZHANG Xue-juan2 |
1. Shijiazhuang University of Economics, Shijiazhuang 050031, China;
2. Hebei Ren Di Ecological Engineering Co., Ltd., Shijiazhuang 050081, China |
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Abstract In view of the special site conditions of the Mengshan mined-out area in Taiyuan City, i.e., the considerable terrain fluctuation and the need of curved line measurement, the authors propose the integrated geophysical methods that combine the array-form measurement of high-density resistivity method with the single-point measurement of Transient Electomagnetic Method (TEM).The former has relatively high resolution for two-dimensional anomaly inversion, which can remedy the shallow survey blind area of the transient electromagnetic method, whereas the latter has the advantage of detecting greater depth and, by adopting the one-dimensional inversion method,it can make up for the defects of the high-density resistivity method caused by the spread of the section broken line and terrain fluctuation, thus realizing the complementary advantages of the two kinds of geophysical methods. With the integrated geophysical methods, the location and the distribution of the mined-out area are detected, and later drilling verified that the integrated geophysical methods are effective. The combination pattern of integrated geophysical methods provides a meaningful reference for detecting other mined-out areas with similar conditions.
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Received: 30 August 2011
Published: 10 December 2012
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