Analysis on the mechanism of the face-contacted blocks structure in overlying strata above the longwall face

作者：Feng Guo Rui^*; Wang Xian Xia; Kang Li Xun

来源：Journal of China Coal Society, 2008, 33(1): 33-37.

• Dayangquan Mine
• Face contacted blocks structure
• Instability
• Overlying strata

The model of the face-contacted blocks structure was established through observation on the spot, its mechanics substance was analyzed and its mechanics definition was proposed. The key contacted-face was founded in the structure of face-contacted blocks by the vector analysis in block theory and mechanics analysis on the face-contacted blocks structure was executed and its mechanical properties was particular studied. As a result, the solution on the squeezing force and the friction for the structure were got. At the same time, an example was calculated and the solution was proved. In a word, the mechanism of the face-contacted blocks structure was put forward in macro, the theory accordance to further study the instability and the effection of the structure of the face-contacted blocks was provided. Calculation example was executed in Dayangquan Mine No. 8113 fully mechanized working-face, the results and observations are basically anastomosis.

• 出版日期2008
• 单位太原理工大学