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文章介绍在孙村矿进行的煤巷围岩地应力测量过程，测量获得了三维地应力的大小和方向并且对测量过程中发生的岩芯饼状断裂现象进行了分析。结果表明：测点垂直应力与上覆岩层自重应力基本一致，最大主应力为近水平压应力。岩芯发生饼状断裂是由于垂直于钻孔轴线方向的地应力组合超过岩芯饼状断裂临界应力所致。
This paper introduces the geostrophic stress measurement of coal surrounding rock in Suncun Mine. The size and direction of three-dimensional ground stress are measured and the core cake fracture phenomenon in the process of measurement is analyzed. The results show that the vertical stress at the measuring point is basically consistent with the self-weighting stress of overlying strata, and the maximum principal stress is near-horizontal compressive stress. The occurrence of pie-shaped fracture in the core is due to the combination of the geostress that is perpendicular to the axis of the borehole beyond the critical stress of the core-cake fracture.