Analysis and control of hydraulic support stability in fully- mechanized longwall face to the dip with great mining height

• Published in: Journal of coal science & engineering, China Vol. 14; no. 3; pp. 399 - 402
• Main Author: 华心祝 王家臣
• Format: Journal Article
• Language: English
• Published: Heidelberg China Coal Society 01.09.2008
• Subjects: Earth and Environmental Science; Earth Sciences; Geochemistry; Geology; Geophysics/Geodesy; Geotechnical Engineering & Applied Earth Sciences; Mechanical Engineering; 倾斜煤层; 水力开采; 煤层高度; 煤炭开采; fully-mechanized working face with great mining height; longwall face to the dip; supports stability control
• ISSN: 1006-9097; 1866-6566
• DOI: 10.1007/s12404-008-0088-z

The working condition of the hydraulic support in working face can be divided into three kinds of situations in the following： roof fall and col,lapse with cavity, advancing support and supporting. Took single support with four-pole in Iongwall face to the dip as research object, control method was studied to avoid support instability in three situations mentioned above. Based on these researches, the major factors of influencing on support stability and its controlling measures were put forward. According to specific conditions of working face 1215（3）, which is fully-mechanized and Iongwall face to the dip with great mining height in Zhangji Coal Mine, Huainan Mining Group, the effective measures was taken to control supports stability..