矿业科学档案馆 (AMS) 关注矿业科学和能源、土木工程和环境工程的原创研究、新发展和案例研究。该杂志为发表以下领域的高质量研究成果提供了一个国际论坛：采矿技术、矿物加工、矿山作业的稳定性、采矿机械科学、通风系统、岩石力学、热力学、油气地下储存、采矿和工程地质学, 岩土工程, 隧道, 隧道的设计和建造, 矿区的设计和建造, 采矿大地测量学, 采矿中的环境保护, 后工业区的振兴。欢迎所有相关主题的论文，特别是理论发展，分析方法，数值方法、岩石测试、现场调查和案例研究。

The Archives of Mining Sciences focuses on original research, new developments, and case studies in the fields of mining science, energy, civil engineering, and environmental engineering. This journal provides an international forum for high-quality research results in the following areas: mining technology, mineral processing, stability of mining operations, mining machinery science, ventilation systems, rock mechanics, thermodynamics, underground storage of oil and gas, mining and engineering geology, geotechnical engineering, tunnels and their design and construction, design and construction of mining areas, mining geodesy, environmental protection in mining, and revitalization of post-industrial areas. We welcome papers on all relevant topics, especially theoretical developments, analytical methods, numerical methods, rock testing, field investigations, and case studies.

《Archives of Mining Sciences》关注矿业科学、能源、土木工程和环境工程领域的原创研究、新发展和案例研究。该杂志为以下领域的高质量研究成果提供了一个国际论坛：采矿技术、矿物加工、矿山作业的稳定性、采矿机械科学、通风系统、岩石力学、热力学、油气地下储存、采矿和工程地质学、岩土工程、隧道及其设计与建造、矿区的设计与建造、采矿大地测量学、采矿中的环境保护以及后工业区的振兴。我们欢迎所有相关主题的论文，特别是理论发展、分析方法、数值方法、岩石测试、现场调查和案例研究。

Archives of Mining Sciences

Vietnam is currently unable to generate nuclear power, and coal still accounts for 32 percent of national energy production. Therefore, mining coal plays a crucial role in the national economy. On the other hand, all open pit coal mines in Quang Ninh will be closed to give the land back to the other industrial section, so the underground mines will be responsible for supporting the entire amount of coal, which is extremely difficult. Therefore, it must mechanise mining to increase output. The research of applicability has been implemented for a long time. Now, Vietnamese workers can operate domestic equipment. However, most mining plans are established from experience and imposed, so this hardly shows the construction reality in the underground mines. Indicators must be manually adjusted to match the previously established documents. This not only causes administrative risks but also wastes time and human resources in handling paperwork, leading to reduced labour productivity indirectly. The key to a mining plan is time, therefore the article analyses the influence of uncertain mining conditions on the construction time. As a result, different working time parameters are determined suitably for different conditions, space, and construction time. The difference between actual construction time and ideal construction time is also made out. The mentioned results are a scientific basis for mine operators to adjust production plans appropriately to the characteristics of underground mines.

Phi Hung Nguyen

Thi Kim Thanh Nguyen

Duc Hung Pham

Quang Phuc Le

Thai Tien Dung Vu

Solution to Determine the Working Time at the Mechanised Longwall in the Natural Condition of Quangninh Coal Seam, Vietnam

越南广宁煤层自然条件下机械化长壁工作面工作时间的确定方法

Conducting mining operations in fault zones is a very challenging task, both from a technological perspective and also due to the safety of the miners. Therefore, it is essential to determine the impact of mining parameters on the possibility of fault activation, which in many cases leads to high seismic activity. The article presents the results of numerical analyses of the impact of longwall mining in the vicinity of tectonic faults on the state of stress in the rock masses. The authors demonstrated the influence of the advancement of the longwall face and its direction on the risk of rock burst, both for mining conducted in the footwall and hanging wall.

Antoni Tajduś

Jerzy Flisiak

Krzysztof Tajduś

Numerical Insights into Stress Changes Induced by Longwall Mining in Faulted Rock Masses

长壁开采在断层岩体中引起的应力变化的数值分析

The mechanics of a flysch rock mass is determined by its complex discontinuity, heterogeneity, anisotropy, and diverse deformation modes. This study proposes a new methodology to simulate the deformation of Carpathian flysch in the vicinity of tunnels, employing the distinct element method (DEM), global-local modelling approach and a hybrid representation of discontinuities. The methodology enables the simulation of a wide range of structural models and properties of Carpathian flysch and reduces the computational complexity of numerical models. A global model reflects the initial stress field. Local models detail the properties of joint sets separating rock blocks and the properties of the ubiquitous joint model material inside the discrete blocks. Both direct and indirect representations of discontinuities contribute to the model response. The numerical model is addressed as a multiparameter system and examined through statistical design of experiments (DOE). The model is calibrated and validated using field measurements of displacements and convergences. The factors contributing to uncertainty in the simulation results are considered. A parametric analysis was conducted on the deformation of flysch rock mass surrounding a tunnel, evaluating the impact of bedding orientation, depth, and support stiffness. Bedding dip direction explained the asymmetry in sidewall convergence and its changes. Discontinuity stiffness and dilation, rarely studied model parameters, were found to have a significant effect on simulation error.

Jacek Jakubowski

Tuan Anh Phan

Distinct Element Simulation of Rock Mass Deformation Near Tunnels in Complex Geological Conditions, Guided by Statistical Experimental Design

基于统计实验设计的复杂地质条件下隧道附近岩体变形的离散元模拟

Atmospheric methane emissions from the energy sector, particularly coal mines, are a component of total global methane emissions. Its presence causes climate changes that contribute to global warming. Methane is a potent greenhouse gas (GHG) with a global warming potential (GWP) approximately 30 times greater than that of carbon dioxide over a 100-year period. The estimation of methane emissions from both underground hard coal mines and open-pit lignite mines is performed based on guidelines that follow the methods recommended in the core publications of the International Panel on Climate Change (IPCC). The methane emission rate determination method developed by scientific institutions is allowed. This article focuses on the analysis and formulation of guidelines for determining the potential methane emissions from open-pit lignite mines, which are determined based on the emission factor and coal production. Coalbed methane content was tested using two methods to determine the methane emission factor. Results of sorption tests were also presented. The results obtained can be used for the development of new solutions or the improvement of current solutions for the determination of the methane emission rate in open-pit lignite mines.

Marcin Karbownik

Henryk Koptoń

Robert Hildebrandt

Determination and Analysis of Methane Emission Factor for Open-Pit Lignite Mines

露天褐煤矿甲烷排放因子的测定与分析

In the extremely close distance of lower coal seam mining, affected by secondary mining, the fractures expand through the layer in the composite roof, and this process is complex and diverse. In this paper, a three-point bending load test of different strength rocks and their combinations is conducted by combining acoustic emission. The results indicate that the overall deflection angle in the lower roof is approximately 8° smaller than that in the upper roof. When the fracture extends from the brittle roof to the plastic roof, the deflection angle in both types of roofs increases. When the plastic roof extends to the brittle roof, the deflection angle of the brittle roof increases while that of the plastic roof decreases. The damage degree of the composite rock mass during the failure process lies between the two single rock masses that make up the composite rock mass. The damage is dense at the initial expansion moment of the fracture in the rock mass, but weak when the interface expands through the layer. The energy evolution of the composite roof mainly depends on the high-strength roof, and the horizontal migration process of the fracture at the interface does not release energy.

Abbreviation	Arch. Min. Sci.
Journal Impact	1.00
Quartiles(Global)	MINING & MINERAL PROCESSING(Q3)

ISSN	0860-7001, 1689-0469
h-index	26

Publication Information	Publisher: Polska Akademia Nauk，Publishing cycle: Quarterly，Journal Type: journal，Open Access Journals: No
Basic data	Year of publication: 2008，Proportion of original research papers: 100.00%，Self Citation Rate:25.00%， Gold OA Rate: 1.64%
Average review cycle	网友分享经验：较慢,6-12周
Average recruitment ratio	网友分享经验：容易

Archives of Mining Sciences

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Solution to Determine the Working Time at the Mechanised Longwall in the Natural Condition of Quangninh Coal Seam, Vietnam

Numerical Insights into Stress Changes Induced by Longwall Mining in Faulted Rock Masses

Distinct Element Simulation of Rock Mass Deformation Near Tunnels in Complex Geological Conditions, Guided by Statistical Experimental Design

Determination and Analysis of Methane Emission Factor for Open-Pit Lignite Mines

Mechanical Behaviour of Fracture Layer Failure in Secondary Mining Composite Roof Strata

Solution to Determine the Working Time at the Mechanised Longwall in the Natural Condition of Quangninh Coal Seam, Vietnam

Numerical Insights into Stress Changes Induced by Longwall Mining in Faulted Rock Masses

Distinct Element Simulation of Rock Mass Deformation Near Tunnels in Complex Geological Conditions, Guided by Statistical Experimental Design

Determination and Analysis of Methane Emission Factor for Open-Pit Lignite Mines

Mechanical Behaviour of Fracture Layer Failure in Secondary Mining Composite Roof Strata