摘要
为深入研究充填开采顶板断裂带发育规律和破坏范围,采用理论分析和现场实测相结合的方法进行了研究。采用板壳理论分析顶板岩层断裂破坏的实质和整个破坏演变的过程,并建立起了充填开采顶板断裂带高度的计算方法。并以红阳四矿为研究对象,应用建立的充填开采断裂带高度计算方法,计算该矿井1326工作面的断裂带高度为8.0m。在现场采用岩层窥测孔对顶板的破坏情况进行了观测,观测结果显示断裂带高度的范围是7.7m至8.2m之间。经过现场实测的验证,板壳理论分析充填开采覆岩变形破坏规律方法可行,该断裂带高度计算方法的精度符合现场实践需要。
To study the development rule and range of roof fault zone in stowing mining, theoretical analysis and field measurement were carried out. The quiddity and process of stratum broken in roof were analyzed by plate theory and the calculation method of height of roof fault zone of roof in stowing mining was established. Then we took Hongyang No. 4 Mine as a research object, and the calculated height of water conducted zone of 1326 working face was 8m. By measuring the broken condition of eyelet hole in stratum on site, it showed the measured height of fault zone is between 7. 7m and 8. 2m, which was consistent to the calculation result, and accuracy of the proposed calculation method met the requirement for field practice.
出处
《煤炭工程》
北大核心
2017年第11期81-84,共4页
Coal Engineering
基金
国家自然科学基金资助项目(51174109
51074086)
关键词
板壳理论
充填开采
断裂带高度
岩层窥测孔
坚硬岩层
plate theory
stowing mining
height of fault zone
eyelet hole in stratum
hard stratum
