摘要
以某煤矿SOS微震监测系统的监测数据为基础,运用数理统计和线形拟合的方法分类统计不同开采速度下不同能量级别的矿震的次数、震动能量,研究了综放工作面开采活动和矿震活动的相关性。研究结果表明:矿山震动是矿山开采的直接产物,低能量矿震的次数、能量与开采速度呈近线性正相关,而高能量矿震与开采速度呈非线性关系。开采速度越快,低能量矿震的震动次数和能量越高,而且相对高的能量成分所占比例显著增加。从而提出控制开采速度可以控制低能量矿震发生次数和释放能量,慢匀速开采能有效地减少矿震发生的次数。
Based on monitoring data of SOS seismic monitoring system from a colliery, this paper made statistic analysis of shock frequency and energy under different mining speeds. It researched correlation relationship of mining activity and shock bump. Results showed that shock bump was direct result of mining activity. The number and energy of shock bump with low energy was proximate linear positive correlation with mining speed, but those with high energy was nonlinear relate with mining speed. Mining speed was quicker, number and energy of shock bump with low energy was larger and the proportion of relative high energy was obvious higher. This paper put forward that reducing mining speed might control number and energy of shock bump with low energy and that mining with slow constant speed might reduce number of shock bump.
出处
《煤矿开采》
北大核心
2010年第1期11-14,共4页
Coal Mining Technology
基金
国家重点基础研究发展规划(973)资助项目(2010CB26805
2005cb221501-03)
国家"十一五"科技支撑计划资助项目(2006BAK03B06
2006BAK04B02)
国家自然科学基金资助项目(50490273
50474068)
关键词
综放开采
开采活动
矿震规律
相关关系
full-mechanized caving mining
mining activity
rule of shock bump
correlation relationship
