Study on calculation method of surface subsidence about the dewatering concretion of clay influenced by mining

• 来源期刊: 煤炭学报（英文版）
• 年，卷（期）: 2007,（4）
• 页码范围: 512-515
• 页数: 4页
• 语种: 英文

摘要

Under the condition of thick alluvia, there is biggish declination in predicting the coal mining subsidence by commonly strip design method compared with the practical observation, the sinkage is much smaller. Based on the method of the probability integral about coal mining subsidence calculation, discussed the surface subsidence calculation and deduced the formulas caused by the clay with dewatering. The results show that the clay dewatering has great impact on surface subsidence. Therefore, the clay dewatering on surface subsidence should not be overlooked.