Standard Number: DB/T 14-2018(DB/T14-2018)
Chinese:原地应力测量水压致裂法和套芯解除法技术规范
English:Technical Specification for Hydraulic Fracturing and Core Release Methods for In-situ Stress Measurements
Effective Date:2019-01-01
Standard Applicability:This standard applies to the field point measurement for obtaining the original ground stress information in underground engineering, and the two-dimensional measurement of hydraulic fracturing method is used to know the magnitude and direction of the plane stress on the cross-section of borehole axis; the three-dimensional measurement of hydraulic fracturing method and sleeve core lifting method are used to know the magnitude and direction of the three-dimensional principal stress.
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