摘要
利用SY-40B型单体液压支柱工作阻力检验仪及钢卷尺对红旗煤矿12200放顶煤工作面进行了全面矿压观测和研究,掌握了顶板运动规律、工作面矿压显现特征和顶板控制特征。对12200采面使用的支护设备的可靠性和适应性进行了评价,为工作面设备的改进与更新提供了参考;探索了采动影响范围及支承压力分布规律,为合理选择工作面支护方式提供了参考依据。
By using SY-40B individual hydraulic prop yield load inspection instrument and steel tape to proceed full measuring of rock pressure in 12200 sub-level caving mining of the Hongqi Coal Mine, the character of roof movement laws, presentation laws of rock pres- sure and roof control are grasped. The assessment of the reliability and adaptability of support equipment which is used in 12200 working face gives reference for improving and refreshing of equipment. It also difines the picked movement incidence and distribution rule of supporting pressure, choosing reasonable support way.
出处
《中州煤炭》
2009年第1期1-3,共3页
Zhongzhou Coal
关键词
支承压力
放顶煤开采
矿山压力
周期来压
supporting pressure
sub-level caving mining
rock pressure
periodic weighting
