Bibliographic citations
Belizario, M., Condori, R. (2021). Aplicación del método gráfico de estabilidad de mathews en vetas angostas para determinar la dimensión geométrica óptima del tajeo n°1 y controlar su inestabilidad en la U.M. Debra Luz [Tesis, Universidad Peruana de Ciencias Aplicadas (UPC)]. http://hdl.handle.net/10757/659079
Belizario, M., Condori, R. Aplicación del método gráfico de estabilidad de mathews en vetas angostas para determinar la dimensión geométrica óptima del tajeo n°1 y controlar su inestabilidad en la U.M. Debra Luz [Tesis]. PE: Universidad Peruana de Ciencias Aplicadas (UPC); 2021. http://hdl.handle.net/10757/659079
@misc{renati/398610,
title = "Aplicación del método gráfico de estabilidad de mathews en vetas angostas para determinar la dimensión geométrica óptima del tajeo n°1 y controlar su inestabilidad en la U.M. Debra Luz",
author = "Condori Cardenas, Robert Lincol",
publisher = "Universidad Peruana de Ciencias Aplicadas (UPC)",
year = "2021"
}
Mining is considered a high-risk job due to exposure to different hazards, In line with the research work, mention is made of the instability of the stopes that is strictly related to the damage that can be caused to collaborators and, as the MINEM says, between 2015 and 2020, of the total number of mining accidents, 28.7 % relate to accidents related to rock fall, block slip and total landslides. This shows the need for geomechanical assessments at all levels of mining to perform safe work and maintain operational continuity. Therefore, this research paper focuses on determining the optimal geometric dimension of the N°1 stope of Debra Luz Mining Unit, so that the assessment of each stope surface is stable and thus indicate that the stope in general is safe for operation. The research scenario is in narrow veins, a characteristic that raises the level of importance of the contribution because the technique to use has generally been implemented in methods of exploitation of large dimensions. The technique to use will be the Mathews Stability Graph Method that allows to evaluate by two input parameters, Stability Number (N ) and Hydraulic Radius (RH), whether the proposed design is in a stable area or not. N is a factor associated with the rock mass, constant value, and the RH is a variable related to the stope dimensions. In addition, the research involves the use of the Finite Element Numerical Model to determine the maximum induced compression stress and the safety factor associated with the N°1 stope that indicates whether the work is stable or not. The value of the uniaxial compression test of the intact rock of the SE gallery hanging wall is 150.3 MPa. According to Gonzales de Vallejo et al. (2002), this value is in the range considered very hard rock. The constant "k" for the case study was obtained equal to 1.55 which means that the greatest occurrence of failure in the stope could be due to horizontal stresses. The optimal dimension that keeps the stope stable is 1.25 x 25 x 30 m, where each surface of the stope was evaluated using the stability graph. Values of safety factors greater than 1.3 were obtained using the numerical model, being stable.
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