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A New Rock Fracture Reconstruction Method Under the Constraints of Microseismic Location and Focal Mechanism by Yong Zhao; Tianhong Yang; Junxu Hou; Seokwon Jeon; Penghai Zhang; Shuhong Wang; Peng Jia; Qianbai Zhao is a Engineering article available to read on EtoBox.
What is A New Rock Fracture Reconstruction Method Under the Constraints of Microseismic Location and Focal Mechanism about?
Under mining conditions, rock masses can experience progressive damage that leads to fracture initiation, propagation and coalescence and thus trigger fracture-controlled disasters, which are dynamic and complex. Therefore, the dynamic characterization of three-dimensional (3D) fractures is critical for revealing disaster-causing mechanisms of rock masses and preventing disasters and has become one of the important problems in the engineering rock mass. This paper proposes a new 3D rock discrete fractures reconstruction method that incorporates microseismic (MS) event location and focal mechanism constraints. The proposed method incorporates a statistical outlier removal (SOR) algorithm, a Gaussian mixed model with expectation maximization (GMM-EM) algorithm for MS events clustering, an intensity-weighted total least square (IWTLS) algorithm for fracture fitting, and moment tensor inversion (MTI) method for fracture orientation optimization. In addition, laboratory uniaxial compression tests with acoustic emission (AE) monitoring were conducted to verify the applicability of the proposed method. Finally, the proposed method was applied to an iron mine with water inrush disasters. T
Who reads A New Rock Fracture Reconstruction Method Under the Constraints of Microseismic Location and Focal Mechanism?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Yong Zhao; Tianhong Yang; Junxu Hou; Seokwon Jeon; Penghai Zhang; Shuhong Wang; Peng Jia; Qianbai Zhao
- Publisher
- Elsevier BV
- Published
- 2023
- Language
- EN
- Field
- Engineering (Physical Sciences)