A5069250141- Geotechnical and Geomechanical Engineering
- Geomechanics and Mining Engineering
- Mining and Gasification Technologies
- Geoscience and Mining Technology
- Engineering and Environmental Studies
- Mining Techniques and Economics
Hanoi University of Mining and Geology
2023
Mong Duong mine's output objective is 1.5 million tons, which requires approximately 10,000 m of tunnel excavation each year. Because the complicated geological features, actual work vastly different, necessitating regular changes in design and technical approaches, as well plans for material supply, money, staff. On other hand, office personnel visit construction site to update status after report, department head board directors make choices on development execution. This process takes...
Purpose. Coal mining activities by underground method will disrupt the equilibrium of surrounding rock mass. In mining, determining influence zone exploiting longwall on topographic surface is extremely important.Through analyzing displacement and deformation mass when 21103 in Seam 11 at Nui Beo Mine, to be determined this order forecast boundary that may affect works, ensuring safety such works. Methodology. To achieve research results, actual field survey methods, data analysis numerical...
Vietnam is currently unable to generate nuclear power, and coal still accounts for 32 percent of national energy production. Therefore, mining plays a crucial role in the economy. On other hand, all open pit mines Quang Ninh will be closed give land back industrial section, so underground responsible supporting entire amount coal, which extremely difficult. it must mechanise increase output. The research applicability has been implemented long time. Now, Vietnamese workers can operate...