摘要
根据现场观测和工程实践,论述了风氧化带内煤层开采时,覆岩破坏移动特征,风化带岩石属性和风氧化带内煤层安全开采机理的定性、定量分析.提出了风氧化带煤层开采无垮落带;受采动影响后,具阻水和抑制导水裂隙带继续发展的双重作用以及适当加大开采厚度等新观点.对两淮煤田浅部煤层安全开采和老矿挖潜具有重要的参考价值.
Based on testing data in worksite and engineering practice, the strata damage movement characteristics, rock properties of weathered zone and qualitative and quantitative analysis of the mechanism of coal layer safety extraction in efflorescent oxygenized belts were discussed. The following new opinions: without caving zone coal layer extraction in efflorescent oxygenized belts; two effects of blocking water and preventing water flowing fractured zone from going on developing after mining effect; appropriately enlarging the extraction thickness were presented. It has important reference value to safety extraction of shallow coal layer and using the old coal mine in the coalfield of South and North of the Huaihe river in Anhui.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
2004年第1期50-54,共5页
Journal of China University of Mining & Technology
