【摘要】 本文概括总结了我国近些年来在钻孔应力—应变观测技术方面的新进展及存在的一些困难,讨论了地应力相对测量工作的发展方向及前沿课题。只要继续加强观测方法及仪器性能的基础研究,在重点台站开展对比观测等实验研究,就能使这一前兆手段达到新的水平,取得更有实用意义的成果。更多还原

【Abstract】 The new development and some existing problems concerning the technique of borehole stress-strain observation in recent years in China have been summarized. Tne development trend of relative stress observation and the subjects in front are discussed. So long as the fundamental study of observation methods and property of the instrument’s characteristics are continously strengthened, as well as the experimental research of relative observation at key observatories is carried out, such a precursory monitoring means can reach a higher level and more useful resalts will be obtained.更多还原