摘要
为了提高矿山地震定位精度,在分析定位误差产生原因的基础上,研究了矿震监测台站的空间分布,提出了台站空间分布准则。研究表明,定位误差主要来自于随机定位误差和系统偏差。在给定速度模型时,随机误差由地震波到时准确性和震中与观测站间的几何图形来决定。通过在北京昊华能源有限公司木城涧煤矿的实际应用表明,该方法有效地提高了矿震定位的精度。
In order to increase the orientation precision,studied spatial distribution of monitoring stations and interrogated the theory through analysis the reason of causing orientation bias.Research indicates that the orientation error might be considered to consist of two components：random orientation scatters and systematic bias.For a given velocity model,random errors depend upon the accuracy of seismic wave arrivals determination and the geometry between the hypocenter and seismic stations.Through application of Muchengjian Coal Mine of Beijing Haohua Energy Resource Co.,Ltd.,practice prove that the method effectually increases precision of mines seismic monitoring.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2010年第12期2045-2048,共4页
Journal of China Coal Society
基金
国家重点基础研究发展计划(973)资助项目(2010CB226803)
关键词
矿震
监测台站
空间分布
定位
误差
mines seismic
monitoring stations
spatial distribution
orientation
error
