| 基于孕震物理模式的断层气流动监测网络布设技术 |
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| 引用本文： | 周慧玲,苏鹤军,张慧,李晨桦,王岩鸿.基于孕震物理模式的断层气流动监测网络布设技术[J].西北地震学报,2018,40(5):1052-1060. |
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| 作者姓名： | 周慧玲 苏鹤军 张慧 李晨桦 王岩鸿 |
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| 作者单位： | 中国地震局兰州地震研究所, 甘肃兰州 730000,中国地震局兰州地震研究所, 甘肃兰州 730000;中国地震局地震预测研究所兰州科技创新基地, 甘肃 兰州 730000,中国地震局兰州地震研究所, 甘肃兰州 730000;中国地震局地震预测研究所兰州科技创新基地, 甘肃 兰州 730000,中国地震局兰州地震研究所, 甘肃兰州 730000;中国地震局地震预测研究所兰州科技创新基地, 甘肃 兰州 730000,中国地震局兰州地震研究所, 甘肃兰州 730000 |
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| 基金项目： | 中国地震局地震预测研究所基本科研业务费专项（2017IESLZ01）；中国地震局地震预测研究所基本科研业务费重点项目（2016IES0101） |
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| 摘 要： | 为了解决我国地震地下流体流动监测网络布设中目前存在的一些问题，以“坚固体孕震模式”为理论基础，以西秦岭北缘断裂带为研究对象，通过高密度地下流体背景值探测，结合地壳垂直形变特征以及地震活动性特征，寻找区域活动断裂带流体与形变以及地震活动的耦合段及断层气响应的灵敏点，综合判断断裂带活动分段性。断层形变、地震活动与地下流体活动有着良好的对应性与耦合关系，震源区均表现为“断层闭锁区”特性，发震地点都显示出一种相对平静的状态。基于以上研究，形成从活动断裂带—“坚固体”闭锁段—近震区前兆场地的追踪思路，规划具有一定物理预报思想的标准化断层气流动观测方案，并建立研究区域观测网络的雏形。这对今后全国地震重点危险区流体流动监测台网布设提供技术思路，并为我国地震预报、震情跟踪及防震减灾工作提供重要依据。
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| 关 键 词： | 地下流体 西秦岭北缘断裂带 流动监测 台网布设 |
| 收稿时间： | 2017/8/20 0:00:00 |
Mobile Monitoring Network Layout Technique for FaultGas Based on Seismogenic Mode |
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| ZHOU Huiling,SU Hejun,ZHANG Hui,LI Chenhua and WANG Yanhong.Mobile Monitoring Network Layout Technique for FaultGas Based on Seismogenic Mode[J].Northwestern Seismological Journal,2018,40(5):1052-1060. |
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| Authors: | ZHOU Huiling SU Hejun ZHANG Hui LI Chenhua and WANG Yanhong |
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| Institution: | Lanzhou Institute of Seismology, China Earthquake Agency, Lanzhou 730000, Gansu, China,Lanzhou Institute of Seismology, China Earthquake Agency, Lanzhou 730000, Gansu, China;Lanzhou Base of Institute of Earthquake Science, China Earthquake Agency, Lanzhou 730000, Gansu, China,Lanzhou Institute of Seismology, China Earthquake Agency, Lanzhou 730000, Gansu, China;Lanzhou Base of Institute of Earthquake Science, China Earthquake Agency, Lanzhou 730000, Gansu, China,Lanzhou Institute of Seismology, China Earthquake Agency, Lanzhou 730000, Gansu, China;Lanzhou Base of Institute of Earthquake Science, China Earthquake Agency, Lanzhou 730000, Gansu, China and Lanzhou Institute of Seismology, China Earthquake Agency, Lanzhou 730000, Gansu, China |
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| Abstract: | To solve some problems in the layout of seismic underground fluid monitoring network in China based on the seismogenic mode of hard body, we take the northern margin fault zone of West Qinling as the study area. Through the detection of high-density underground fluid background value as well as the characteristics of vertical crustal deformation and seismicity, we aim to obtain the relationship of fluid, deformation, and seismic activities in the regional active faults to comprehensively analyze the segmental characteristics of the fault zone. The results show that there is a good correspondence and relationship between fault deformation, seismic activity, and underground fluid activity. The seismic source areas always exhibit characteristics of fault blocking, and the seismogenic sites all show a relatively calm state. Based on the above research, we propose a mobile monitoring scheme of fault gas with a physical prediction mechanism and establish a prototype for the observation network in the northern margin fault zone of West Qinling. This study can provide technical ideas for the layout of fluid flow monitoring network in seismic risk areas of China in the future and provide an important basis for earthquake prediction, earthquake tracking, and earthquake prevention and disaster reduction in China. |
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| Keywords: | underground fluid the north margin of West Qinling fault zone mobile monitoring network layout |
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