空心包体式钻孔三向应变计地应力测量的研究

RESEARCH ON HOLLOW INCLUSION TRIAXIAL STRAIN GAUGE FOR GEOSTRESS MEASLJREMENT

对空心包体式钻孔三向应变计的地应力测量方法进行了系统的研究，推导了资料整理的计算公式。对应变片并非直接粘贴在钻孔岩壁上而引入的修正系数Ｋｉ和各因素对它的影响以及由它的误差所导致的测量误差，进行了分析。

The principle of geostress measurement by hollow inclusion triaxial strain gauge is systematically studied, and the calculation formulas for processs of measured data are derived. The correcting factors Ki, used to correct the error caused by the strain gauges not cemented directly to the surface of rock in the borehole, is discussed. It is also analyzed that the errors of assumed values of correcting factors Ki lead to the errors of geostress measurement.