欢迎访问《地震》,

地震 ›› 2000, Vol. 20 ›› Issue (2): 101-106.

• • 上一篇    下一篇

地应力观测井中元件标定及应力场计算方法

石耀霖, 范桃园   

  1. 中国科学院中国科技大学研究生院, 北京 100039
  • 收稿日期:1999-06-07 修回日期:1999-10-09 出版日期:2000-04-30 发布日期:2022-09-26
  • 作者简介:石耀霖(1944-), 男, 教授, 1986年获美国加州伯克利大学博士学位, 1993年博士生导师,主要从事地球动力学定量化模拟及多学科综合研究工作。

Borehole in situ calibration of stress sensors and calculation of variation of stress field during long term observation

SHI Yao-lin, FAN Tao-yuan   

  1. Graduate Scholl at Beijing, University of Science and Tech nology of China, Beijing 100039, China
  • Received:1999-06-07 Revised:1999-10-09 Online:2000-04-30 Published:2022-09-26

摘要: 在地应力长期观测中,对井下现场标定观测元件的布设以及计算应力的相对变化是一个困难的问题。针对这个问题,提出了在钻孔内布设四个应力测量元件,而非传统三个元件的测量方法。在井下其中一个元件大体标定的情况下,对其他元件进行了相对精密标定,并给出了应力变化以及实现应力观测数据可靠性自校的计算公式。

关键词: 地应力, 地震前兆, 地应力元件标定

Abstract: It is an important and difficult problem to calibrate the borehole stress sensors in situ and calculate the relativ evariation of stress during long term observation. Conventio nally, three measuring compo nents are installed in measurement of the ground stress. Now we sug gest a new method that there are four stress measuring compo nents to be laid in the borehole. When one of the four measuring components is roughly calibrated, the others can be calibrated precisely relative to the calibrated one. In this article we present the variation of stress and the equation of self-check of the reliability of the bserved data.

Key words: Ground stress, Earthquake precursor, Calibration of stress sensor

中图分类号: