Spatial fracturing progresses of surrounding rock masses in longwall face monitored by microseismic monitoring techniques 微地震监测揭示的采场围岩空间破裂形态
Study on microseismic monitoring for spatial structure of overlying strata and mining pressure field in longwall face 采场覆岩空间破裂与采动应力场的微震探测研究
A mircroseismic monitoring system suitable for underground microseismic monitoring based on dsp technology is developed and several important aspect of implementation of this technique are studied in this paper 本文介绍了一种基于dsp技术的井下微地震实时监测系统设计,并对实现这种技术的几个重要环节进行了详细阐述。
It ' s indirectly proved that the oriented method is a reliable and practical . moreover , the natural fracture direction tested by the underground microseismic monitoring system also proved that the orientation technique is correct and comparable . 6 同时,针对该试验区块,对两口开发井进行了地下微地震波监测,测得的人工裂缝方位与实验测得的最大主地应力方向非常吻合,进一步证明了该方法的正确性和可比性。
The hardware mainly consists of three parts : signal pre - amplifying and conditioning circuit is used to amplifying the microseismic signals which have detected , signal processing and target identifying circuit based on singlechip is used to convert the analog signals which have been amplified to digital signals and go through signal analysis , processing to identify the moving target , the sending and receiving setting is used to send the identifying result to the decision - making and he can take relevant action according to the result 硬件主要由三部分组成:信号调理电路对检测到的微弱地震动信号进行放大;基于单片机的信号分析与目标识别电路将放大后的模拟信号进行a d转换,进一步将得出的数字信号分析、处理,实现目标识别;识别结果发射与接收装置将识别结果发射给决策者,由其根据接收结果采取相应的措施。