Statistical Analysis Of Local Monitored Seismic Data And Acoustic Emission Simulation Experiment

The strong earthquakes happened on the Earth many times every year and they brought great disaster to human beings,but accurate prediction of the earthquake was still in the stage of half experience and half theory.Therefore,the earthquake prediction is one of the significant scientific problems in the world.To study the evolution law of earthquake gestation and development process and new earthquake monitoring method can provide scientific basis for earthquake prediction and quantitative criterion and has very important practical significance and application value.This paper dealt with the collection of data statistical analysis and experimental research based on the geological structure characteristics of Zoucheng city in shandong province and the dynamic testing methods such as water level monitoring and micro vibration meter.The real-time information acquisition system of local earthquake and mine seismic activity was preliminaryly built in order to provide important experimental and theoretical basis for short forecast of earthquake and the local mine seismic activity.The full waveform acoustic emission instrument was also used to test simulating seismic wave in water based on the water with voice coupling principle in order to build a new acoustic emission dynamic detection of local real-time monitoring seismic wave,The results showed that:1,According to the groundwater level monitoring statistical data analysis from the YueZhuang seismic stations deep well in Zoucheng city,the water level occurring continued rapid decline before some strong earthquakes and then rebounded after the earthquakes happen were showed.Therefore,the groundwater level changes of this deep well had better remember ability for earthquake,especially it had sensitive response for shallow source earthquakes.Also it had better space directional remember ability for earthquake and strong earthquakes were often happened in March to April and October to November every year.The most coseismic response characteristics belonged to the two kinds of ladder and oscillation type.2,The statistical data by using a micro vibration meter to monitor mine earthquakes showed that there was certain regularity of time distribution for the regional mine seismic activity.The spatial distribution of the mine earthquakes had the characteristics of clustering.Through the analysis of waveform and spectrum diagrams,the distinguishes between mine seismic,blasting and earthquake can be done easierly.The positioning of these mine seismic activities and their time,location and vibration intensity could be determined accurately by this way.3,Based on the water with voice coupling principle,the transmission features of the simulating seismic wave in the water and the conducting characteristics of wave conductors made by different materials were tested by means of an acoustic emission meter in order to provide a new earthquake monitoring method.