四分量钻孔应变资料的质量评价及拟合分析

针对“十五”期间完成布设的YRY-4型四分量钻孔应变仪的观测数据, 简要分析了气压、 水位与应变观测三者间的相互影响关系, 介绍了几种典型的水位干扰因素影响特点。 在对观测资料进行初步评价的基础上, 利用四分量观测特有的自检功能, 对应变观测资料的质量进行了更深入的评价。 依据资料质量评价结果, 在仪器稳定期内借助包含气压、 水位影响的综合拟合模型, 给出了信度较高观测站的各路分量响应率、 气压系数、 水位系数等参数的分布情况, 可作为今后进一步分析的背景参考。

Quality Evaluation and Fitting Analysis of 4-component Borehole Strainmeter Data

Based on data observed by YRY-4 4-component borehole strainmeters installed during the tenth five-year project of China,this paper makes a brief analysis of how atmospheric pressure,water level,and observation data are interrelated,and introduces some typical features of influences caused by water level interference.After the initial valuation of the data,we conduct a more thorough valuation on quality of the observed data by means of self-checking function specific to 4-component observation.According to t...