Study on Simulation Test and Survey Technology of Working Square Subsidence and Shaft Damage
Mine working squares are important fields for mining activities. Shaft likes a throat in a mine. If it was damaged that will be threaten the mine safety. Because some reasons, such as illegitimate coal pillar, underground mining effect, drain off water and so on, the square may be subsidence or slippage follow the flabby rock formations. So the shaft and some ground buildings may be damaged in the effected bound. In this paper, take the data of a mine in the northeast of our country for instance, and by means of the test study of similar material simulation, the ground subsidence, the movement of coal pillar and the damaged mechanism of the shaft were analyzed. It put forwards the theoretical basis and analytic method according to the survey data to determine the pattern of the subsidence and movement of the square. Using the way to analyze the survey data made from many times observations, the change rule of equivalent rotation axis of the square subsidence or movement can be acquired and some simulation test results can be verified. It provides a scientific basis for the deformation analysis and damage precaution to the shaft and its accessories.
working square subsidence pattern simulation test survey and analysis
Sui Huiquan
Department of Architecture & Civil Engineering, Dalian National Minorities University, Dalian Liaoning, 116600, China
国际会议
The 3rd International Symposium on Modern Mining & Safety Technology Proceedings(第三届现代采矿与安全技术国际学术会议)
辽宁阜新
英文
624-627
2008-08-04（万方平台首次上网日期，不代表论文的发表时间）