数字化气氡观测干扰因素的分析研究

地震地质 ›› 2003, Vol. 25 ›› Issue (4): 640-646.

数字化气氡观测干扰因素的分析研究

张朝明¹, 陈华静², 朱方保³, 李罡风¹, 陶月潮³, 罗志春⁴, 束克明³

1. 安徽省地震局, 合肥, 230031;
2. 中国地震局分析预报中心, 北京, 100036;
3. 安徽省地震局庐江台, 庐江, 231511;
4. 安徽省和县香泉台, 和县, 238254

收稿日期:2002-07-28 修回日期:2003-07-06 出版日期:2003-12-03 发布日期:2009-10-26
作者简介:张朝明,男,1945年出生,南京大学生物化学专业毕业,高级工程师,主要从事地下流体的地震预报、监测方法、技术及其地震前兆机理的研究,电话:0551-5561093,E-mail:ZCM@eq-ah.cn.
基金资助:
中国地震局2001年三结合合同项目资助.

STUDY ON INTERFERENCE FACTORS OF THE DIGITAL MEASUREMENT OF ESCAPED RADON

ZHANG Chao-ming¹, CHEN Hua-jing², ZHU Fang-bao³, LI Gang-feng¹, TAO Yen-chao³, LUO Zhi-chun⁴, SHU Ke-ming³

1. Seismological Bureau of Anhui Provine, Hefei 230031, China;
2. Center for Analysis and Prediction, China Seismological Bureau, Beijing 100036, China;
3. Deformation Observatory of Lujiang, Anhui Province, Lujiang 231511, China;
4. Deformation Observatory of Xiang quan, Hexian County, Anhui Province 238254, China

Received:2002-07-28 Revised:2003-07-06 Online:2003-12-03 Published:2009-10-26

摘要/Abstract

摘要： 在进行地下流体数字化气氡观测及将观测资料应用于震情分析的过程中,发现某些干扰因素对数字化气氡观测和水氡的影响不同。在目前所用观测仪器和方法的条件下,气温对气氡值的影响系数为-0.4%/℃;气压对气氡测值的影响系数为0.1%/hPa;不同类型的气水分离装置对气氡观测的影响很显著;同一含水层的井(泉)出水量的短期变化可引起观测水井流量的变化,但对气氡测值影响不显著;气氡测值对逸出气流量的变化反映不明显;逸出气含有杂质及气路泄漏等均会引起测值的下降。结合仪器的工作原理,对干扰产生的机制以及排除的方法进行了讨论。

关键词: 数字化观测, 逸出氡, 资料处理, 干扰因素

Abstract: In digital measurement of radon gas from subsurface fluid and the use of the obtained data in earthquake prediction, we found that some interference factors have different effects on digital measurement of radon gas. In this paper, the effects of some interference factors, such as atmospheric pressure, atmospheric temperature, discharge of escaped gases, impurity in escaped gases, discharge of well water, leakage of gas-pipe and different gas-extraction systems on digital measurement of escaped radon gas are discussed in detail. The study shows that under the present conditions of measurement devices and method, the influence coefficient of atmospheric temperature on digital measurement of escaped radon is -0.4%/℃, and that of the atmospheric pressure is 0.1%/hpa. Different types of gas-extracting devices have great influence on radon measurement. The change of the discharge of the observation well caused by short-term variation of the discharge of well or spring of the same aquifer has less effect on radon measurement, and the discharge of escaped gases has little influence on radon measurement. However, the impurity in the escaped gasses and the leakage of gas-pipe may cause the decrease of measured value of escaped radon. Taken the working principle of the measurement apparatus into account, the mechanism of the interferences and the eliminating method are discussed. The results of this study are of actual significance to the application of digital measurement of escaped radon to earthquake prediction.

Key words: digital measurement, escaped radon, data processing, interference factors

中图分类号:

P315.72⁺4

张朝明, 陈华静, 朱方保, 李罡风, 陶月潮, 罗志春, 束克明. 数字化气氡观测干扰因素的分析研究[J]. 地震地质, 2003, 25(4): 640-646.

ZHANG Chao-ming, CHEN Hua-jing, ZHU Fang-bao, LI Gang-feng, TAO Yen-chao, LUO Zhi-chun, SHU Ke-ming. STUDY ON INTERFERENCE FACTORS OF THE DIGITAL MEASUREMENT OF ESCAPED RADON[J]. SEISMOLOGY AND GEOLOGY, 2003, 25(4): 640-646.