【作者】 钟飞； 张伟； 刘铁鑫； 钟约先；

【Author】 ZHONG Fei, ZHANG Wei, LIU Tie-xin, ZHONG Yue-xian (Department of Mechanical Engineering, Tsinghua University, Key Laboratory for Advanced Materials Processing Technology, Ministry of Education, Beijing 100084, China)

【机构】 清华大学机械系,教育部先进成形制造重点实验室；

【摘要】 本文应用自行研制的声波地质雷达系统进行了野外试验,对实验数据进行了时频分析,计算了相关系数,延时及波速。分析表明,所研制的声波地质雷达系统采用可控震源发射扫描声波,即在比较长的时间内分散地把能量传人到地下,等效于短时冲击震源发射的声波。实验表明,采用该系统和方法进行浅层地震勘探是可行的。测试计算得平均波速为119.52m/s。更多还原

【Abstract】 Field experimentations are carried out with sonic geological radar system developed by NDT Lab of Tsinghua University. Time and frequency analyses are conducted for experiment datum, and correlation coefficient, time delay and wave velocity are also calculated. The analyses indicate that the sweep wave emitted by vibroseis of sonic geological radar system, namely the energy being sent into ground dispersedly in long time, equals to wave emitted by impulse source. Field experimentations show that this system and method is useful for shallow seismic exploration. The calculated average wave velocity is 119.52m/s.更多还原