Research Article
Study on Roadway Layout and Supporting Method of High Intensity Mining Disturbance Bottom Coal Recovery Working Face (A Case Study in Xiagou Mine)
Yuqing Duan*
,
Gang Han,
Xiaoqi Hao
Issue:
Volume 12, Issue 3, June 2024
Pages:
63-74
Received:
22 July 2024
Accepted:
12 September 2024
Published:
10 October 2024
Abstract: After more than ten years of mining, the subsequent replacement resources of 4 # coal in Xiagou Mine are insufficient. In order to ensure the normal production of the mine, Xiagou Coal Mine needs to recycle the lower layer resources of 4 # coal seam. The design issue of the roadway layout and support mode for the bottom coal recovery left by the strong disturbance in the Xiagou Mine has to be resolved. Through theoretical evaluation and computer simulation, this study investigates the appropriate staggered distance of the roadway layout following upper slicing mining as well as the distributed stress law of the roadway under various staggered distances. Finally, the reasonable external offset is determined. Based on the actual working condition of 404 mining area in Xiagou Mine, the matching roadway support design is put forward. Finally, the roadway layout and support design are validated through the use of computer modeling and field monitoring. The findings demonstrate that when there is a significant disruption in the upper layer, the roadway layout of bottom coal recovery should adopt the external staggered layout and the reasonable external staggered distance is 6 m. At this time, the fluctuation degree of nearby rock stress, the non-uniformity of stress distribution and the uniformity of the roadway's deformation under disturbance meet the production needs. It shows that 6m layout and roadway supporting method are more reasonable, which has reference significance for roadway arrangement and support under similar engineering conditions.
Abstract: After more than ten years of mining, the subsequent replacement resources of 4 # coal in Xiagou Mine are insufficient. In order to ensure the normal production of the mine, Xiagou Coal Mine needs to recycle the lower layer resources of 4 # coal seam. The design issue of the roadway layout and support mode for the bottom coal recovery left by the st...
Show More
Research Article
Advancements in Real-Time Monitoring to Reduce Non-Productive Time in Oil Exploration in Nigeria
Issue:
Volume 12, Issue 3, June 2024
Pages:
75-82
Received:
20 September 2024
Accepted:
11 October 2024
Published:
31 October 2024
Abstract: The study investigated the advancements in real-time monitoring technologies aimed at reducing Non-Productive Time (NPT) in oil exploration in Nigeria, employing systematic content analysis as the research design. Given Nigeria's status as Africa's largest oil producer, the sector faces significant challenges related to aging infrastructure, frequent equipment failures, and operational inefficiencies. The study synthesized findings from recent literature on emerging digital technologies, including Artificial Intelligence (AI) and the Internet of Things (IoT), and their impact on operational efficiency. The systematic content analysis revealed that the integration of AI and IoT in real-time monitoring can effectively enhance predictive maintenance, optimize drilling parameters, and facilitate immediate responses to operational anomalies. Findings indicated that these technologies have the potential to reduce NPT by up to 30%, leading to improved productivity and cost savings. Additionally, the study highlighted the economic and environmental implications of adopting these technologies in Nigeria’s oil sector. The research underscores the necessity for investment in digital infrastructure and training, advocating for a strategic approach to modernize Nigeria's oil exploration practices in alignment with global best practices. Overall, this study contributes to the discourse on technological innovations in the oil and gas industry, providing actionable insights for stakeholders aiming to enhance operational efficiency in Nigeria's exploration activities.
Abstract: The study investigated the advancements in real-time monitoring technologies aimed at reducing Non-Productive Time (NPT) in oil exploration in Nigeria, employing systematic content analysis as the research design. Given Nigeria's status as Africa's largest oil producer, the sector faces significant challenges related to aging infrastructure, freque...
Show More
