我国地震地下流体观测台网调整与优化方案探讨

车用太; 鱼金子

doi:10.11939/jass.2015.02.015

我国地震地下流体观测台网调整与优化方案探讨

doi: 10.11939/jass.2015.02.015

车用太^,,
鱼金子

中国北京 100029 中国地震局地质研究所

基金项目: 中国地震局项目(2200404)资助.

详细信息

通讯作者:
车用太, E-mail: che@ies.ac.cn

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- 文章访问数: 506
- HTML全文浏览量: 209
- PDF下载量: 6
- 被引次数: 0
出版历程
- 收稿日期: 2014-11-19
- 修回日期: 2015-01-03
- 刊出日期: 2015-03-01

A discussion about the adjustment and optimization of subsurface fluid monitoring network in China

Che Yongtai^,,
Yu Jinzi

Institute of Geology, China Earthquake Administration, Beijing 100029, China

摘要

摘要: 本文首先简要介绍了我国地震地下流体观测台网的现状，然后针对其存在的主要问题提出了调整与优化的建议： ① 调整布局，重点加强我国中西部地区(105°E以西)的监测； ② 扩大规模，观测井(泉)数要达到1000个左右； ③ 全面提高观测井质量，淘汰不符合规范要求的观测井(泉)，改造不完全符合规范要求的观测井，新建一批完全符合规范的观测井； ④ 优化观测项目的组合，大力发展观测井(泉)水流量观测，强化以H₂、 He、 CO₂等为主测项的断层带土壤气观测，建立断层带土壤气观测网； ⑤ 优化现有的观测模式，开展平面上的台阵式观测与垂向的多层次立体化观测； ⑥ 完善与提升现有数字化观测技术水平.
- 地下流体观测网 /
- 台网布局 /
- 台网规模 /
- 观测网质量 /
- 观测项目 /
- 观测模式 /
- 数字化观测技术
Abstract: The current situation of the earthquake subsurface fluid monitoring network in China is briefly introduced. And then, some suggestion on adjustment and optimization of the network are proposed. ① Change the layout of the existing monitoring network so as to focus on the middle-western China, particularly to the west of 105°E. ② Increase the number of monitoring wells or springs up to approximately 1000. ③ Improve the quality of monitoring network, eliminate and transform those wells or springs that do not meet for the standards and requirements at all. ④ Optimize the monitoring items, focus on the monitoring of the wells or springs flows, the soil vapor in the vicinity of faults (main parameters are H₂, He, CO₂), and construct a soil vapor network. ⑤ Optimize the existing monitoring modes, establish the plane array observation and vertical multi-level three-dimensional observation. ⑥ Improve the existing digital monitoring technology.
- subsurface fluid monitoring network /
- layout of monitoring network /
- scale of monitoring network /
- quality of monitoring network /
- observation program /
- observation mode /
- digital observation technology

HTML全文

表 1 我国地下流体观测井(泉)数统计表(引自冯恩国等，2012)

Table 1. Number of observation wells and springs of China (after Feng et al，2012)

表 2 不同震级地震与前兆场显现区和井间距的关系(引自车用太等，2006)

Table 2. Relationship between different magnitude earthquakes and dimensions of its precursor field region，interval distance of wells (after Che et al，2006)

M_S	孕震断裂理论长度/km	前兆场尺度/km	理论井间距/km	平均井间距/km
5.0	6.45	12.9—19.3	10—20	15
6.0	19.31	38.6—57.9	40—60	50
7.0	57.80	115.6—173.4	110—170	140
8.0	173.02	346.0—519.0	340—520	430

下载: 导出CSV

表 3 一井(泉)地下流体多测项优化组合观测方案

Table 3. Optimized combination scheme for multiple observation items of underground fluid in one well or spring

下载: 导出CSV

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