CHECK AND MODIFICATION FOR GEOSTRESS MEASUREMENT BY HYDRAULIC FRACTURING TECHNIQUE
水压致裂法地应力测量的校核和修正

The classieal theory of geostress measurement by hydraulic ftacturins techniqueis further explored. A thorough study is made for the assumption of borehole directionconsistent with principal stress direction and the breaking criterion of maximum uniaxialtension stress, which doesn't accord entirely with practice. The suggestions are made tocheck and modifiy the measured data of geostress and the specific calculation formulas arederived with some examples for illustration.