摘要
根据从诸多濒临带压开采威胁的煤矿中得到大量的第一手资料,运用多元统计分析方法,揭示出了煤层底板突水这种地质现象的演化和特征的内在联系和规律,建立了矿压对煤层底板破坏深度的计算式。通过对以往煤层底板突水系数计算公式进行对比、分析、推理和总结,克服了以往计算公式的不足,继承和发展了公式的优点,得出了考虑因素较全面和较科学的突水系数计算式,从而为解决煤层底板隔水岩柱薄弱地带或断裂陷落柱薄弱地带的煤矿安全生产提供了一套行之有效的解决方法。这套公式在太原西峪煤矿和晋城矿务局(西区)得到了应用,证明是一种行之有效的方法。
A lot of practical data were collected from many coal mines that faced with danger of mining under safe water pressure of aquifer, and use the method of polynomial statistics analysis and calculate with the aid of electronic computer, reveal the internal relations and laws of the evolution and characteristics of the geology phenomenon of water bursting from coal seam floor and build the calculation formula of effective depth of floorbreak. By contrasting analyzing reasoning and summing. Author complemented old calculation formula's shortcoming inherited and developed the advantages of old calculation formula. Last, a new calculation formula of the water bursting coefficient was obtained, that submitted a useful way of mining under safe water pressure of aquifer for coal mine, especially in the fragile zone of impermeable rock pillar of bottom or structural broken zone of fracture collapse column. There is dangers karst into mining pit. The calculation formula was used in Xiyu coal Mine of Taiyuan City and the west District Mine of Jincheng and had proved that is useful way.
出处
《水文地质工程地质》
CAS
CSCD
2003年第1期96-99,共4页
Hydrogeology & Engineering Geology
关键词
突水系数
矿压
破坏深度
导升高度
等效厚度
煤层
底板
water bursting coefficient
rock thrust
depth of floor-break
hight of water goes up
equivalent thickness.
