摘要
本文是以西石门铁矿南区采空区为研究对象 ,依据矿岩的点荷载强度测定与结构面调查 ,对岩体稳定性进行分级。指出南区采空区顶板冒落形式 ,一是以散体形式零星冒落 ,另一是批量冒落。通过对南区地表塌陷坑周围裂纹扩展与井下揭露岩体的观察 ,进一步研究分析采空区的冒落规律。
Based on measurement of rocks point load strength and rocks structural profile,the stability of rockmass is classified into different grades.The roof fall in the southern worked out zone can be forecasted:it will occur in the future mainly in two modes——scattered or batchwise.
出处
《中国矿业》
北大核心
2001年第3期42-44,共3页
China Mining Magazine
关键词
采空区
土表塌陷坑
冒落规律
铁矿
顶板
Worked out zone,Classification of rock stability,Roof fall
