Application of Three-Dimensional Seismic Exploration Technology in the Mining Area of Loess Plateau

Abstract:

Based on the first panel of some coal mine in the western loess tableland, this thesis has carried out three-dimensional exploration. The emphasis of experiment is shooting factor(well depth、dynamite), at the same time, the experiment of instrument factor and receiving factor has been carried out to choose the best shooting factor and receiving parameter. By proper layout observation system, elaborate static correction and comparison about various methods of static correction, this thesis has drawn the following conclusions: (1) From the experiment of well depth, interference wave is mainly composed of multiple refraction wave and surface wave, in general, the greater of the well depth, the smaller of the interference of refraction wave, and the interference of surface wave has dropped. Refraction wave energy is related to excitation horizons; (2)From receiving profile during the process of the experiment, the wave detector of dominant frequency being 25Hz has little difference with the wave detector of dominant frequency being 60Hz, so each has its advantages. The levels of reflection wave groups in coal seam of 60Hz profile are relatively abundant, and the continuity of the bottom reflection wave in coal seam of 60Hz profile is greater than 25Hz profile, and it is easier to trace, compare and explain. (3) From the process of the experiment, the complexity of surface conditions has little influence on data, on condition that being constructed strictly and completing static correction, it is absolutely possible to finish geological exploration.

• Periodical: Applied Mechanics and Materials (Volume 709)
• Pages: 491-495
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.709.491
• Online since: December 2014
• Authors: Xin Feng, Nian Qin Wang, Jing He, Qing Tao Wang*, Xing Chen Jiang
• Keywords: Loess Plateau Area, Mining Area, Three-Dimensional Seismic Exploration

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