| 分量式钻孔应变观测的最佳方案 |
| |
| 引用本文： | 张永庆,赵树贤,邱泽华,唐磊.分量式钻孔应变观测的最佳方案[J].大地测量与地球动力学,2022,42(6):650-654. |
| |
| 作者姓名： | 张永庆 赵树贤 邱泽华 唐磊 |
| |
| 作者单位： | 应急管理部国家自然灾害防治研究院,北京市安宁庄路 1 号,100085 |
| |
| 基金项目： | 中央级公益性科研院所基本科研业务费专项;国家自然科学基金 |
| |
| 摘 要： | 针对现有四分量钻孔应变仪观测准确性自检不完整的问题，着眼于钻孔应变仪的未来发展，在理论上推导出n≥3分量水平等间隔钻孔应变观测方案的面应变、N向差应变和N向剪应变的一般化公式，并定性评价其准确性自检能力。若仅考虑面应变观测的准确性自检，现有的四分量钻孔应变仪是最佳方案；若考虑观测准确性的全面自检，即同时进行面应变和剪应变的准确性自检，那么六分量是最佳方案。针对六分量方案，给出面应变和剪应变的准确性自检公式。
|
| 关 键 词： | 钻孔应变仪 面应变 剪应变 自检 |
Optimal Solution for Component-Type Borehole Strain Observation |
| |
| ZHANG Yongqing,ZHAO Shuxian,QIU Zehua,TANG Lei.Optimal Solution for Component-Type Borehole Strain Observation[J].Journal of Geodesy and Geodynamics,2022,42(6):650-654. |
| |
| Authors: | ZHANG Yongqing ZHAO Shuxian QIU Zehua TANG Lei |
| |
| Abstract: | In view of the incompleteness of the existing component-type borehole strainmeters and the future development of borehole strainmeters, we theoretically derive generalized formulas for surface strain, north-directional differential strain, and north-directional shear strain for the n≥3-component horizontally equally spaced borehole strain observation scheme. We qualitatively evaluate their accuracy self-verification capabilities. If only the accuracy self-verification of areal strain observation is considered, the existing four-component borehole strainmeter in China is the best solution; if the comprehensive self-verification of observation accuracy is considered, i.e., the accuracy self-verification of both areal strain and shear strain, then the six-component is the best solution. For the six-component scheme, we give formulas for accuracy self-verification of areal strain and shear strain. |
| |
| Keywords: | borehole strainmeter areal strain shear strain self-verification |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《大地测量与地球动力学》浏览原始摘要信息 |
| 点击此处可从《大地测量与地球动力学》下载免费的PDF全文 |
