摘要
本文研究了水压致裂法地应力测量的破裂准则,主张采用三轴载荷条件下的霍克和布朗破坏准则置代经典理论的最大单轴拉应力破坏准则,提出了对经典理论的修正公式,并举有实例。
In this paper,the breaking criterion of geostress measurement by hydraulic fracturing tech-nique is explored。The author suggests the substitution of the breaking criterion proposed by Hock andBrown under the triaxial loading condition for that of maximum uniaxial tension stress.Some calcula-ting formulas for modification to the classical theory are given。