Research on Automatic Detection Technology for Coal Seam Floor Failure Features

Abstract:

By the impact of coal mining, coal floor will produce distortion and damage, and make the damage zone which may result in water inrush from the floor of coal seam. CT technology with DC electricity is used to analyze two-dimensional point source current field by employing the forward calculation, inverse iteration, model correction and other methods. On the basis, inverted resistivity image of the detecting zone is obtained, which can help to determine damage law and damage depth of coal seam floor. And then the possibility of water inrush from the coal floor is analyzed. Industry practice shows that the research results are credible and can play an important guiding role in the controlling of water inrush.

• Periodical: Key Engineering Materials (Volumes 467-469)
• Pages: 1870-1875
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.467-469.1870
• Online since: February 2011
• Authors: Guang Ming Zhao, Xiang Rui Meng
• Keywords: DC Resistivity, Geophysical, Mining Damage, Water Inrush

References

[1] Cheng Jiulong, Li Wen, Wang Yuhe: Journal of China Coal Society, Vol. 33(2008),P. 59-62.

[2] Wu Xiaoping, Wang Tongtong: Chinese Journal of Geophysics, Vol. 46(2003),P. 428-432.

[3] Zhang Pingsong, Liu Shengdong, Wu Rongxin: Chinese Journal of Rock Mechanics and Engineering, Vol. 23(2004), P. 2510-2513.

[4] Zhang Hongri, Zhang Wenquan, Wen Xinglin: Mining Research and Development, Vol. 20(2000), P. 1-4.

[5] Liu Shengdong, Wu Rongxin, Zhang Pingsong: Journal of China Coal Society, Vol. 34(2009),P. 927-932.

[6] M H Loke, R D Baker: Geophysics Prospecting, Vol. 44(1996), P. 131-152.