Article
Geosciences, Multidisciplinary
Liang Cheng, Jiang Xu, Shoujian Peng, Lei Qin, Fazhi Yan, Yang Bai, Bin Zhou
Summary: Coal-and-gas outburst (CGO) is a major challenge in coal mining, and the initial gas pressure has a significant influence on the flow characteristics of CGO airflow. The study found that the gas pressure decreases periodically or continuously during the CGO process, and the static pressure in the roadway shows alternating positive-negative pressure transition. The increase in coal seam initial gas pressure leads to higher velocity and longer duration of high-speed airflow in the roadway.
NATURAL RESOURCES RESEARCH
(2022)
Article
Geosciences, Multidisciplinary
Jie Zheng, Gun Huang, Qiang Cheng, Jingkai Jia, Zenghui Cai
Summary: This paper proposes a novel experimental apparatus for evaluating the outburst risk of coal by destructing stressed gas-bearing coal. The apparatus includes symmetrical gas release openings to ensure uniform gas release and provide more accurate results. Testing results showed that the destruction of coal samples in abrupt pressure drop is related to gas adsorbability and structural weakening of gas to coal, with the evolution of axial stress being affected by gas desorption. The reliability of the apparatus in predicting the outburst risk was validated, offering potential for future prevention of coal-and-gas outbursts.
NATURAL RESOURCES RESEARCH
(2022)
Article
Geosciences, Multidisciplinary
Hai Rong, Shiqi Yu, Weihua Song, Guoshui Tang, Yadi Wang, Dequan Sun, Bingjie Huo
Summary: With the increasing of mining depth and intensity, coal and gas outburst has become one of the most destructive and harmful dynamic disasters in coal mines. This study aims to investigate the correlation between coal and gas outburst and natural earthquakes, using the principles of disaster prevention, seismology, statistics, and geophysics. The research results show that natural earthquakes can induce abnormal gas emissions in coal mines, especially in weak plane structures. There is a unified mechanism for the occurrence of natural earthquakes and coal and gas outburst, and there are correlations between space and intensity. The findings provide new insights for predicting these two types of disasters.
FRONTIERS IN EARTH SCIENCE
(2023)
Article
Energy & Fuels
Haijun Guo, Yingjie Yu, Kai Wang, Zhe Yang, Liang Wang, Chao Xu
Summary: The basic physical parameters and gas desorption characteristics of raw coal and tectonic coal composite seams in northern China were tested and analyzed. The results revealed that the tectonic coal had higher adsorption capacity and gas desorption volume, as well as a higher diffusion coefficient compared to raw coal. However, the Protodyakonov's coefficient of tectonic coal was smaller. This study provides important insights for the prevention and control of coal and gas outburst disasters in raw coal and tectonic coal seams, ensuring the safe and efficient mining of coal resources.
Article
Geosciences, Multidisciplinary
Chenghang Fu, Heping Xie, Mingzhong Gao, Fei Wang, Jing Xie, Junjun Liu, Bengao Yang, Ruifeng Tang
Summary: The study revealed that coal in the fracture zone is most strongly affected by roadway excavation, forming effective permeability; coal in the disturbance zone is less affected and forms effective permeability after peak strength; coal in the original rock stress zone is only influenced by coal mining, with the lowest permeability.
GEOMATICS NATURAL HAZARDS & RISK
(2021)
Article
Mining & Mineral Processing
Longyong Shu, Liang Yuan, Qixian Li, Wentao Xue, Nannan Zhu, Zhengshuai Liu
Summary: In this study, the coupling relationship between gas pressure and dynamic load in the coal body ahead of the working face was investigated. It was found that the impact rate of the dynamic load can significantly change the gas pressure, and the faster the impact rate, the speedier the increase in gas pressure. Three models of stress and gas pressure distribution were proposed for different working conditions. The results provide practical guidance for the prevention and early warning of coal and gas outbursts.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Zhuang Lu, Liang Wang, Mingzhe Lv, Yang Lei, Hao Wang, Qingquan Liu
Summary: This study provides new insights into the theoretical study of coal and gas outburst in serious outburst coal seams and the control of coal and gas outburst by hydraulic measures.
FRONTIERS IN EARTH SCIENCE
(2022)
Review
Energy & Fuels
Chenghao Wang, Yuanping Cheng
Summary: This paper systematically reviews the importance of coal deformation energy and gas expansion energy in coal and gas outbursts. It highlights that most literature related to outburst energy overlooks the contribution of coal deformation energy. Experimental results show that the deformation energy of high outburst risk tectonic coal has a power function relationship with stress, and its releasing mode differs from intact coal. The coal deformation energy is proved to have the same order of magnitude with gas expansion energy.
Article
Engineering, Chemical
Bin Zhou, Jiang Xu, Fazhi Yan, Shoujian Peng, Yabin Gao, Qixian Li, Liang Cheng
Summary: A custom-made large-scale test system was used to study the effects of gas pressure on coal-gas outburst (CGO) two-phase flow. Higher initial gas pressure led to higher solid-gas ratio, initial motion speed of CGO coal, and CGO intensity. Severe choking of two-phase flow and intermittent disturbances were observed, with a strong-disturbance zone developing in the middle of the roadway during the CGO process.
Article
Thermodynamics
Wei Zhao, Huzi Dong, Kai Wang, Shimin Liu, Zhida Yan
Summary: This study investigates the asynchronous characteristics of gas expansion energy and coal deformation potential energy during coal and gas outburst. The findings reveal that the adsorption-induced expansion process lasts longer, resulting in the asynchronous propagation of gas expansion energy and coal deformation potential energy. The study also uncovers the different components of coal deformation potential energy and their role in the outburst process.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Article
Energy & Fuels
Haidong Wang, Zhiheng Cheng, Quanle Zou, Zhenhua Li, Fulong Sun, Hongwei Yang, Yun Lei
Summary: The proper understanding and utilization of liquid CO2 phase transition fracturing technology is crucial for reducing CO2 emissions and increasing coalbed methane production. By implementing this technology in outburst-prone coal seams, it is possible to improve gas extraction speed, increase gas permeability, and effectively suppress coal seam outbursts.
Article
Green & Sustainable Science & Technology
Jie Zheng, Qinming Liang, Xin Zhang, Jinyong Huang, Wei Yan, Gun Huang, Honglin Liu
Summary: Coal and gas outburst is a pressing problem in coal resource extraction, posing a severe threat to coal mine safety and sustainable production. This study investigates the gas desorption-diffusion behavior of bituminous coal with different particle sizes and its impact on coal breaking during outbursts. The findings reveal that smaller coal blocks have higher gas desorption and diffusion rates, resulting in more rapid coal fragmentation and gas release. These insights contribute significantly to the prevention and control of coal mine disasters and sustainable coal resource production.
Article
Engineering, Chemical
Chaojie Wang, Xiaowei Li, Changhang Xu, Yujia Chen, Zexiang Tang, Chao Zhang, Yang Du, Xiangyang Gao, Chenglin Jiang
Summary: By monitoring gas pressure and temperature, the evolution laws of gas key parameters during initial desorption of tectonically deformed coal and primary-undeformed coal were studied. The results show that tectonically deformed coal is more likely to initiate gas outburst, with increased gas pressure leading to higher temperature change rates and gas expansion energy release, increasing the likelihood of coal mass damage.
Article
Mining & Mineral Processing
Qingyi Tu, Yuanping Cheng, Sheng Xue, Ting Ren, Xiang Cheng
Summary: The research investigated the crushing work ratios and gas desorption properties of intact coal, concluding that high levels of transport work and gas are needed for crushing intact coal, exceeding the transport work significantly. The study also found that the required minimum stress for crushing intact coal exceeds the in-situ stresses available at mining depths of 300-700 meters.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2021)
Article
Energy & Fuels
Qingyi Tu, Sheng Xue, Yuanping Cheng, Wei Zhang, Gaofeng Shi, Guisheng Zhang
Summary: This study analyzed the guiding effect of tectonic coal on outburst by combining typical cases and conducting physical simulation experiments. It was found that the threshold value of critical gas pressure for outburst was lower in groups with local existence of tectonic coal areas. Additionally, the outburst development sequence was altered due to the presence of tectonic coal areas.
Article
Engineering, Industrial
Hao Sun, Haiqing Wang, Ming Yang, Genserik Reniers
Summary: To maintain continuous production, chemical plant operators may choose to ignore or handle faults online rather than shutting down process systems. However, the interaction and interdependence between components in a digitalized process system are significant, and faults can propagate to downstream nodes, potentially leading to risk accumulation and major accidents. This study proposes a dynamic risk assessment method that integrates the system-theoretic accident model and process approach (STAMP) with the cascading failure propagation model (CFPM) to model the risk accumulation process. The proposed method is applied to a Chevron refinery crude unit and demonstrates its effectiveness in quantifying the process of risk accumulation and providing real-time dynamic risk profiles for decision-making.
Article
Engineering, Industrial
M. Rempel
Summary: This article examines a major maritime disaster scenario and explores the evacuation process in such a situation. The study finds that there are various factors that affect the number of lives saved, including the uncertainty of individuals' medical condition, the arrival time of maritime and air assets, and the decision policies used. The authors formulate the multi-domain operation as a sequential decision problem using a modeling framework and provide decision support through a hypothetical case study.
Review
Engineering, Industrial
D. Scorgie, Z. Feng, D. Paes, F. Parisi, T. W. Yiu, R. Lovreglio
Summary: This study investigates the application and effectiveness of VR safety training solutions in various industries such as construction, fire, aviation, and mining. The findings suggest a need for more studies that adopt theories and measure long-term retention. Two meta-analyses demonstrate that VR safety training outperforms traditional training in terms of knowledge acquisition and retention.
Article
Engineering, Industrial
Shital Thekdi, Terje Aven
Summary: This paper examines biases in risk studies and investigates how to identify and address them to ensure high-quality risk analysis. By considering biases related to systematic error, event inclusion, models, and cognitive factors, the paper explores their influence on risk characterization. The insights gained from this exploration can be valuable to risk analysts, policymakers, and other stakeholders involved in risk study applications.
Article
Engineering, Industrial
Maryam Lari
Summary: Occupational health and safety (OHS) are crucial for employee well-being and productivity. This study examines the impact of OHS practices on employee productivity in a UAE Fire and Security company, finding that OHS interventions can enhance workplace ambiance and significantly boost employee productivity.
Review
Engineering, Industrial
Elleke Ketelaars, Cyrille Gaudin, Simon Flandin, Germain Poizat
Summary: This systematic literature review examines the literature on resilience training (RT), specifically focusing on the effectiveness of RT interventions in preparing professionals to effectively respond to critical situations. The review identifies five types of RT and suggests the need for conceptual advancements, vocational education and training perspectives, and a cross-disciplinary approach in future research to enhance resilience in safety-related domains.
Article
Engineering, Industrial
Meng Shi, Zhichao Zhang, Wenke Zhang, Yi Ma, Hanbo Li, Eric Wai Ming Lee
Summary: This study investigates pedestrian behaviours and evacuation processes in both fire and non-fire conditions using Minecraft. The results demonstrate the potential of Minecraft for realistically simulating evacuation processes, as the behaviours and flow patterns of pedestrians in virtual experiments fit well with real-life experiments. The study also shows that pedestrians exhibit fire avoidance behaviours and orderly queuing during a fire emergency, resulting in faster evacuation.
Article
Engineering, Industrial
Andrea Bikfalvi, Esperanza Villar Hoz, Gerusa Gimenez Leal, Monica Gonzalez-Carrasco, Nuria Mancebo
Summary: This paper proposes a solution for integrating occupational safety and health (OSH) into education, combining theoretical foundations and empirical evidence. The findings include analysis of teachers as stakeholders, barriers and facilitators of OSH integration, and the development of an ICT tool for interaction and sharing in this field. The main contribution lies in envisioning, orchestrating, and validating a solution to integrate OSH into schools and ultimately contribute to sustainable development goals.
Article
Engineering, Industrial
David Rehak, Alena Splichalova, Martin Hromada, Neil Walker, Heidi Janeckova, Josef Ristvej
Summary: This article discusses the adoption of a new directive on the resilience of critical entities and emphasizes the importance of assessing their level of resilience in relation to current security threats. The authors have developed a tool, known as the CERFI Tool, which uses a probabilistic algorithm to predict the failure point of critical entity resilience based on the relationship between threat intensity and protection. The tool is important for increasing the safety of technically oriented infrastructures, particularly in the energy and transport sectors.
Review
Engineering, Industrial
Leonardo Leoni, Ahmad Bahootoroody, Mohammad Mahdi Abaei, Alessandra Cantini, Farshad Bahootoroody, Filippo De Carlo
Summary: This paper presents a systematic bibliometric analysis (SBA) on the research of machine learning and deep learning in the field of safety. The main research areas, application fields, relevant authors and studies, and temporal evolution are investigated. It is found that rotating equipment, structural health monitoring, batteries, aeroengines, and turbines are popular fields, and there is an increase in popularity of deep learning and new approaches such as deep reinforcement learning.
Article
Engineering, Industrial
Tom Becker, Peter Ayton
Summary: By analyzing global civil aviation data, we found that there is a significant increase in the number of accidents and safety critical incidents, as well as the fatalities, when the Pilot-in-Command acts as the Pilot Flying instead of the Pilot Monitoring. Most of these events occurred in technically airworthy aircraft without any emergencies, and the flight crew assessed them as preventable. These findings align with the crew assignment effect, suggesting that role-dependent status hierarchy and cognitive overload contribute to ineffective flight crew teamwork. The measures implemented to enhance flight crew teamwork, such as Crew Resource Management training, have not been successful in preventing these issues.
Article
Engineering, Industrial
Ben Hutchinson, Sidney Dekker, Andrew Rae
Summary: This study found that health and safety audits often fail to identify critical deficiencies, with corrective actions mainly focusing on superficial fixes rather than addressing significant operational risks.
Review
Engineering, Industrial
Sina Rasouli, Yaghoub Alipouri, Shahin Chamanzad
Summary: Construction projects are risky environments, but the development of Personal Protective Equipment (PPE) and comprehensive safety management can effectively control the number of accidents.
Article
Engineering, Industrial
Laura Mills, Verity Truelove
Summary: This study investigated the use of police location communities (PLCs) for obtaining information about roadside drug testing (RDT) among drivers, and found that drivers who used PLCs were more concerned about being caught for drug driving, had a better understanding of the related penalties and procedures, and knew others who also used PLCs to avoid detection for drug driving. Furthermore, the study found that the use of PLCs was associated with choosing back roads for driving, which may reduce the risk of detection for drug driving.
Review
Engineering, Industrial
Chao Wu, Xi Huang, Bing Wang
Summary: After decades of development, the safety discipline in China has made remarkable progress. The project led by the Safety & Security Theory Innovation and Promotion Center of Central South University has filled the gaps in safety science education by creating textbooks and courses for postgraduate students. These achievements have played an important role in the development of safety science and can serve as a reference for basic research and talent training in safety science globally.