期刊文献+

用引潮力进行钻孔的应变一应力的原地标定 预览 被引量:16

BOREHOLE STRAIN--STRESS CALIBRATION IN THE SAME PLACE BY USE OF TIDAL GENERATION FORCE
在线阅读 免费下载
收藏 分享 导出
摘要 本文利用勒夫数将日、月作用于地球的引潮力位计算到潮汐形变引起的水平应力,以此作为原地标定的已知应力,用应变固体潮观测资料进行调和分析计算出面积应变的耦合系数及差应变的耦合系数,利用这些系数和仪器钢简的弹性常数计算出围岩的等效弹性常数。最后导出了求解围岩等效弹性常数的实用公式,并计算了两种钻孔应变仪所在的两个台站钻孔的围岩的等效弹性常数,其结果与实际情况基本相符。 In relative measurement of crustal stress, in ordel to calculate stress value from and strain value observed in a borehole it is necessary to find out the elastic constant of the rock formation where a strainmeter sensor is situated (including the coupling medium).In this paper horizontal stress caused by tidal deformation will be calculated from tidal generation force potential of the sun and the moon acting on the earth by use of Love Numbers. The stress will be regarded as the known stress in calibration of the same place, the coupling coefficients of area strain and differential strain will be calculated through harmonic analysis of observational data of strain tides. The equivalent elastic constant of the surrounding rock will be calculated by use of these coefficients and the elastic constant of the steel shell of the strainmeter sensor.At last the practical formulas for calculating equivalent elastic constant of surrounding rock have been reduced, The equivalent elastic constants of surrounding rock of the boreholes in two stations where two types of strainmeters have been installed have been calculated. The calculated result basically tallies with the actual condition.
作者 骆鸣津 顾梦林 Luo Mingjin Gu Menglin Li Anyin Sui Jianshe (Seismological Bureau of Henan Province)
出处 《地壳形变与地震》 CSCD 1989年第4期 51-62,共12页 Crustal Deformation and Earthquake
  • 相关文献

参考文献1

  • 1王仁编..固体力学基础[M].北京:地质出版社,1979:370.

同被引文献211

引证文献16

二级引证文献124

投稿分析

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部 意见反馈