摘要
分析比较4处不同形状水体气枪激发信号的主要特征,得到水体形状对气枪激发波形影响的关系,并利用数值方法模拟不同陆地水体中气枪激发的过程。研究结果表明:不同水体形状对气枪信号存在一定程度的影响,并且对高频信号成分影响较强,对低频信号成分影响较弱。在进行的4组实验中,马刨泉实验信号气枪能量转化为低频能量的效率高,所激发信号波形尖锐。
We analyzed the data of four airgun experiments in different water shapes to obtain the influence relation ship of different water shapes on wavefrom of airgun and carried out corresponding numerical simulations to simulate the process of airgun exciting in different water shapes We find that water shape has an influence on airgun triggered signals The influence on high frequency is strong but on low frequency is weak Among our four experiments,the MPQ Pool experiment has highest energy transform efficiency and a sharp waveform
作者
胡久鹏
王宝善
陈颙
HU Jiupeng;WANG Baoshan;CHEN Yong(Key laboratory of Seismic Observation and Geophysical Imaging,Institute of Geophysics,China Earthquake Administration,Beijing 100081,China;School of Earth Sciences and Engineering,Nanjing University,Nanjing 210023,Jiangsu,China)
出处
《地震研究》
CSCD
北大核心
2017年第4期543-549,共7页
Journal of Seismological Research
基金
中央公益类科研院所基本科研业务专项(DQJB16A01)
国家自然基金国家自然科学基金资助项目(41674058)
地震行业专项(201508008)
云南省陈颙院士工作站(2014IC007)联合资助
关键词
水体形状
气枪震源
数值模拟
water shape
airgun source
numerical simulation
