Analisis critico- Articulo Centifico.pptx

Análisis critico de la extracción de carbón en China

1. “Current stress field and its relationship to tectonism in a coal mining district , central China, for underground coal energy exploration”. SEMINARIO I Marilia Foitzick Arenas MET485 Peng Li, Meifeng Cai, Qifeng Guo, Fenhua Ren, Shengjun Miao

2. TESIS TESIS Abstract Results Opinion MET485 Bibliography Profesora Guía Adeline Delonca Profesores Co-Guía Rodolfo Morales Luis Felipe Orellana Tema “Modelación del rebote flexural y su influencia en la sismicidad profunda, evaluando su impacto en minería subterránea”. Problemática La sismicidad inducida origina peligros en el proceso de explotación minero, por lo que se requiere de una mejor comprensión de sus fuentes, para generar planes de mitigación que reduzcan su impacto sobre la seguridad de la operación y el negocio minero. Palabras Claves Rebote flexural/ Flexural Rebound , sismicidad profunda/ deep seismicity, Activación de estructuras/ S tructure activation.

3. MET485 Exploitation– Depth ( z >1000 m) Conditions –Stress in situ Abstract-Context Abstract TESIS Results Opinion Bibliography

4. MET485 Exploitation– Depth ( z >1000 m) Conditions –Stress in situ Abstract-Context Abstract TESIS Results Opinion Bibliography Investigate stress distribution : Geologic structures Mining conditions secure y stable

5. In situ stress measurement campaing MET485 Abstract-Paper Abstract TESIS Results Opinion Bibliography Overcoring method 47 in situ stress measurement data ( z = 417 to 1123 m).

6. σ H, σ h y σ v  positive correlation, linear. MET485 Results-stress field distribution Results TESIS Abstract Bibliography Opinion Reverse faults Strike-slip faults

7. Stress directions, variations 3 movements Indosiniano/Yanshan/ Himalaya. Regional stress  Stress horizontal, orientation E-W. MET485 Results-correlation between stress field and tectonism Results TESIS Abstract Bibliography Opinion

8. 0.2 – 1 ( μ _m) Faults present  frictional slip Warning seismic activity MET485 Results-Degree of stress Accumulation Results TESIS Abstract Bibliography Opinion P0:Pore pressure μ : Coefficient of friction σ 1 : Major principal Stress σ 3 : Minor principal Stress

9. The paper presents a normal context with respect to the stress field. Introduction to the concept of “structure activation” Power seismic activity alerts MET485 Opinion Results TESIS Abstract Bibliography Opinion Suggestions Mining operations  topographic changesseismicity Stress heterogeneity

10. Flexural Rebound “Uplift of the rock mass due to topographic change caused by mining (mining operations, production phase)”. MET485 Tesis-Paper Results TESIS Abstract Bibliography Opinion Hypothesis Flexural Rebound  Seismicity  S tructure activation

11. Flexural Rebound “Uplift of the rock mass due to topographic change caused by mining (mining operations, production phase)”. MET485 Tesis-Paper Results TESIS Abstract Bibliography Opinion Hypothesis Flexural Rebound  Seismicity  S tructure activation IMPACT ON THE MINING PLAN

12. Li, P., Cai, M., Guo, Q., Ren, F., & Miao, S. (2022). Current stress field and its relationship to tectonism in a coal mining district, central China, for underground coal energy exploration.  Energy Reports ,  8 , 5313-5328. https://www.sciencedirect.com/science/article/pii/S2352484722007715 MET485 Results TESIS Abstract Bibliography Opinion Bibliography

13. “ Current stress field and its relationship to tectonism in a coal mining district , central China, for underground coal energy exploration ”. SEMINARIO I Marilia Foitzick Arenas MET485 Peng Li, Meifeng Cai, Qifeng Guo, Fenhua Ren, Shengjun Miao