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《地震研究》[ISSN:1000-0666/CN:53-1062/P]

卷:

40

期数:

2017年04期

页码:

514-524

栏目:

主动源专栏

出版日期:

2017-09-20

文章信息/Info

Title:

A Perspective Review of Seismological Investigation on the Crust at Regional Scale Using the Active Airgun Source

作者:

王伟涛¹; 王宝善¹; 蒋生淼¹; 胡久鹏¹; 张元生²

(1.中国地震局地球物理研究所 地震观测与地球物理成像重点实验室,北京 100081; 2.中国地震局兰州地震研究所,甘肃 兰州 730000)

Author(s):

WANG Weitao¹; WANG Baoshan¹; JIANG Shengmiao¹; HU Jiupeng¹; ZHANG Yuansheng²

(1.Key Laboratory of Seismic Observation and Geophysical Imaging,Institute of Geophysics,China Earthquake Administration,Beijing 100081,China)(2.Lanzhou Institute of Seismology,China Earthquake Administration,Lanzhou 730000,GanSu,China)

关键词:

气枪震源;  浅部探测;  波速变化

Keywords:

airgun sources;  crust velocity structure detection;  wave velocity variation

分类号:

P315.3

DOI:

-

摘要:

气枪震源在大陆浅部探测中的应用日益广泛。首先描述了大容量气枪震源在陆地水体内的激发特征,分析了其由海洋转入陆内水体激发实现的激发模式、激发环境和探测方法的转变; 然后介绍了气枪震源在探测大陆浅部速度结构及监测弹性波速随时间变化当中的应用; 最后简述了气枪震源在地震学研究中的潜在应用及面临的挑战。实践证明,陆地水体内激发的气枪震源是一种绿色、环保、高效的人工重复震源,其激发的信号可用于区域尺度的地壳结构成像,在一定程度上可替代传统炸药震源。同时,其激发的高度重复的信号可用于弹性波速随时间变化的监测,测量精度

Abstract:

The application of airgun source in the shallow exploration of the continent is more and more widely. Firstly,we described the excitation characteristics of large volume airgun source in the land water are,and analyzed the transform of excitation mode,excitation environment and detection method of the excitation from marine airgun source to in on-land water bodies. Secondly,we briefly introduced the application of airgun source in detecting the shallow velocity structure of the continent and monitoring the elastic wave velocity variation with time. Finally,we briefly described the potential applications and challenges of airgun source in seismology are. The practice proves that the airgun source excited in on-land water bodies is a kind of green,environmental protection and efficient artificial repetition source. The excited signal of airgun source can be applied to the regional crustal structural imaging,and can partly replace the traditional explosive source. Meanwhile,the highly repetitive signals exited by it can be used to monitor the elastic wave velocity variation,and the detecting precision reached 10^-4. Overall,the airgun source is a new and developing source,and it is necessary to study its source characteristics and signal processing technology to extend its application in seismology.

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备注/Memo

备注/Memo:

收稿日期:2017-04-11
基金项目:国家自然科学基金(41374070,41674061,41474048)共同资助,第一作者受云南省陈颙院士工作站(2014IC007)部分资助.

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更新日期/Last Update: 2017-09-20