Analysis Floor Failure Characteristics of 7122 Working Face in the Qinan Coal Mine Based on the Plasticity Theory

Lei Han; Xiang Rui Meng

doi:10.4028/www.scientific.net/AMM.275-277.999

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 275-277Analysis Floor Failure Characteristics of 7122...

Analysis Floor Failure Characteristics of 7122 Working Face in the Qinan Coal Mine Based on the Plasticity Theory

Abstract:

In order to study the floor damage depth of 7122 working face in the Qinan Coal Mine, we used Key strata theory and elastic-plastic theory to analyze the activities mechanisms and characteristics of the surrounding rock. By theoretical calculation obtained floor strata failure depth 8.79m of 7122 Face Mining; The horizontal distance of from the greatest floor damage depth to the coal wall is about 5.71m; The goaf floor failure distance is about 25.44m. Combined with the results of plasticity theory, we had drawn floor damage feature maps of 7122 working face in Qinan Coal Mine.

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Periodical:

Applied Mechanics and Materials (Volumes 275-277)

Pages:

999-1002

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.275-277.999

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Online since:

January 2013

Authors:

Lei Han, Xiang Rui Meng

Keywords:

Elastic-Plastic Theory, Failure Dept, Mining Floor, Qinan Coal Mine

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References

[1] LIN Yuan-dong, TU Min. Resolution and analysis on failure depth of face end floor in coal mining face[J]. Coal Science and Technology, 2011, 39(3): 25~28.

Google Scholar

[2] ZANG Simao, ZHANG Denghui, LI Gang. Failure characteristics of floor result from mine and preventive treatment technology of mine water disaster[J]. Journal of Liaoning Technical University(Natural Science), 2011, 30(3): 341~344.

Google Scholar

[3] LI Shen-ju, WANG Xin. Coal floor failure characteristic of the working face 10409 in Xinzhi coal mine[J]. Journal of Xi'an University of science and technical, 2012, 32(2): 176~179.

Google Scholar

[4] LI Gang, WANG Haiping, SU Junhui. Destruction features in floor caused by mining activity: with Tuanbai mine as example[J]. Coal geology & exploration, 2012, 40(2): 59~62.

Google Scholar

[5] DUAN Hong-fei, JIANG Zhen-quan, ZHANG Rui, ZHU Shu-yun. Field measurement and simulation research on failure depth of fully mechanized thin coal seam floor in Yangcun Coal Mine[J]. Journal of China Coal Society, 2011, 36(Supp. 1) : 13 ~17.

Google Scholar

[6] ZHANG Wen-bin. Analysis on floor stress and failure depth of fully mechanized top coal caving mining face[J]. Coal Science and Technology, 2010, 38(12): 17~21.

Google Scholar