THE APPLICATION OF TEM AND RESISTIVITY SOUNDING TO THE INVESTIGATION OF GOB AREAS NEAR SHAWU RAILWAY
LI Yao-hua1, YANG Jin1, LI Shi-feng2
1. School of Geophysics and Information Technology, China University of Geosciences, Beijing 100083, China;
2. Resource College, Hebei University of Engineering, Handan 056038, China
The exploitation of iron ore near Shawu Railway (at 40 km+870 m) has led to the overlying rock distortion and collapse above gob areas and the earth surface subsidence. Such a situation not only affects the railway transportation but also endangers the safety of lives and property of the adjacent villagers. In this study, TEM served as the primary technique and IP sounding was used to strengthen the investigation along the railway. The location, limits and spatial characteristics of the gob areas were detected through the combination of the two methods. The accuracy of the investigation was increased and the effect was fine. The exploration results can provide reliable technical support for surface safety and gob treatment, and can also supply protection to railway operation.
李耀华, 杨进, 李世峰. 瞬变电磁与电阻率测深在沙午铁路采空区勘查中的应用[J]. 物探与化探, 2011, 35(2): 274-279.
LI Yao-hua, YANG Jin, LI Shi-feng. THE APPLICATION OF TEM AND RESISTIVITY SOUNDING TO THE INVESTIGATION OF GOB AREAS NEAR SHAWU RAILWAY. Geophysical and Geochemical Exploration, 2011, 35(2): 274-279.