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在各向同性介质中,计算出因静水压力(hydrostatic)和剪切变形引起钻孔应变仪的响应因子很重要,它可以优化钻孔应变仪的设计和生产,仪器安装后也会遇到应变响应因子等参数。本文首次把空钻孔的结果与钻孔仪器和围岩紧密接触的结果进行比较,分析了钻孔仪器浇注水泥浆后的效果。通过对各个图件的分析,就可以得到在已知弹性参数的环境下给出典型仪器的优化设计思路。另外,本文的一些结论也可被用来对未知应变测量的结果进行分析、校正仪器的响应因子,或者利用已有的应变观测资料、数据反过来估算观测地点的岩石弹性参数。
In isotropic media, it is important to calculate the response factor of a drilled hole strain gauge due to hydrostatic and shear deformation, which optimizes the design and manufacture of a borehole strain gauge, and encounters strain after installation Response factor and other parameters. In this paper, the result of the empty hole is compared with the result of the close contact between the hole drilling instrument and the surrounding rock for the first time, and the effect of the drilling instrument pouring the cement slurry is analyzed. Through the analysis of each figure, we can get the optimal design ideas of typical instruments under the known elastic parameters. In addition, some conclusions in this paper can also be used to analyze the results of unknown strain measurements, calibrate the response factors of the instruments, or use the existing strain observation data to inversely estimate the rock elastic parameters of the observed sites.