Analysis on Deformation and Stress Characteristics of a Multibraced Pit-in-Pit Excavation in a Subway Transfer Station by Xin Shi, Chuanxin Rong, Hua Cheng, Linzhao Cui, Bin Wang, Shicheng Sun

Get full text

The Mechanism of Rock Mass Crack Propagation of Principal Stress Rotation in the Process of Tunnel Excavation by Guanfeng Chang, Xinzhu Hua, Jie Zhang, Peng Li

Get full text

Comprehensive Evaluation of Blast Casting Results Based on Unascertained Measurement and Intuitionistic Fuzzy Set by Li Ma, Jianguo Zhang, Chen Xu, Xingping Lai, Qiang Luo, Chendong Liu, Kemin Li

“…The measured and processed data of blast casting in Heidaigou Open-Pit Coal Mine were calculated by the evaluation model. …”
Get full text

Study on Reasonable Size of Coal and Rock Pillar in Dynamic Pressure Roadway Segment of Fully Mechanized Face in Deep Shaft by Binyang Sun, Pingsong Zhang, Haifeng Lu

Get full text

POSSIBILITIES OF SELF-ORGANIZATION METHODS IN PREDICTING EMERGENCY SITUATIONS IN MINING by I. S. Bondarenko, V. V. Kupriyanov

“…The article is directed at developing and substantiating one of the approaches to forecasting the individual residual resource of a particular mining equipment in operation in a coal mine clean-up area. The main causes, affecting the accuracy of forecasts, have been identified. …”
Get full text

Study on the Constant Resistance Coupling Support Technology for Rock Column at the Intersection Point of Deep Soft Rock Large Section Roadway: A Case Study in China by Huichen Xu, Yong Zhang, Jinkun Yang, Jiangbing Li, Xiaoming Sun, Cheng Xie

“…In order to solve the problem on the serious deformation and failure of the rock column at the intersection of large cross sections in Shiyakou coal mine, based on field engineering geomechanics analysis, theoretical analysis, and three-dimensional numerical simulation, combined with the mutual coupling between the constant resistance coupling support cable and surrounding rock, a dual-control constant-resistance coupling control technology with high prestressed constant resistance coupling support cable as the core solution is proposed. …”
Get full text

The Principle and Downhole Testing of Water Injection Exploration in Depleted Reservoirs by Jinpeng Xu, Hui Zhao, Bing Dong, Yi Li, Chuang Wang

“…Coal mine water hazards are one of the five major natural disasters in mines, and water in depleted areas is the most serious form of water hazard causing casualties. …”
Get full text

Similar Material Simulation Study on Protection Effect of Steeply Inclined Upper Protective Layer Mining with Varying Interlayer Distances by Zhigang Yuan, Yaohua Shao, Zhuohui Zhu

“…The research results provide a useful guide for layouts of roadway and gas drainage boreholes to prevent gas disaster in Nantong coal mine district.…”
Get full text

Failure Mechanisms and the Control of a Longwall Face with a Large Mining Height within a Shallow-Buried Coal Seam by Haijun Wang, Yingjie Liu, Yuesong Tang, Hao Gong, Guoliang Xu

“…In the present study, the 12401 longwall face of the Shangwan Coal Mine, Inner Mongolia, China, with a mining height of 8.8 m, is taken as an example to study the mechanisms underlying failure phenomena of coal walls and their control methods. …”
Get full text

Pore Structure and Fractal Characteristics of Shale under the Control of Bedding and Size: A Case Study of Shale from the Longmaxi Formation in China by Yao Cheng, Yifeng Xie, Yulin Ma, Yanlin Zhao

Get full text

Influence of Two Cooling Methods on Dynamic Mechanical Properties of High Temperature Sandstone by Qi Ping, Qi Diao, Dezhi Qi, Chen Wang, Chuanliang Zhang

“…To study the influence of different cooling methods on dynamic mechanical properties of high temperature rock, both natural cooling and water cooling were used to cool high temperature (100°C∼1000°C) coal mine sandstone to room temperature (20°C). Basic physical parameters of sandstone were measured, and impact compression tests were carried out by using the SHPB test device. …”
Get full text

The Law of Fracture Evolution of Overlying Strata and Gas Emission in Goaf under the Influence of Mining by Cheng Cheng, Xiaoyu Cheng, Rui Yu, Wenping Yue, Chao Liu

“…The aim of this study was to explore a case study of the Wangjialing coal mine 12322 working face in Shanxi, China, through physical simulation and field observation. …”
Get full text

Study on Permeability Improvement Technology by Injecting Air into the Gas Drainage Borehole in Low-Permeability Coal Seam by Li Hui, Guo Chengwei, Sun Yuanfang, Guo Shaoshuai

“…The results indicate that the best condition is a negative pressure drainage at 26 kPa and a gas injection pressure at 0.6 MPa in the vertical direction and in the horizontal direction of the injection hole. In Shanxi Daping Coal Mine 3113 working face, the field test is implemented. …”
Get full text

Improvement of the technology of flame arrester manufacturing by K. N. Pantyukhova, O. Yu. Bourgonova, Yu. O. Filippov, G. P. Ulyasheva

“…Methane emissions occur in coal mines during the development of gasbearing seams. …”
Get full text

Study on Factors Influencing the Viscosity of Sodium Carboxymethyl Cellulose Used in Capsule-Mucous Sealers by Fakai Wang, Zhongguang Sun, Xuelong Li, Kequan Wang, Deyou Chen, Zhen Li

“…The best solution for stabilizing the viscosity was determined and effectively applied at a coal mine site, where an overall improvement in the viscosity behaviour was observed.…”
Get full text

THE CONCEPT OF THE SIMULATION MODEL OF THE DECISION SUPPORT SYSTEM OF THE COAL ENTERPRISE by I. S. Bondarenko

“…In addition, the article presents the structure and description of the implemented simulation model of the main production process of the experimental coal mine. The paper indicates the role of the user-manager in the decision-making process based on the results of modeling. …”
Get full text

The Importance of Physiochemical Processes in Decarbonisation Technology Applications Utilizing the Subsurface: A Review by Ieva Kaminskaite, Sandra Piazolo, Andy R. Emery, Nicholas Shaw, Quentin J. Fisher

“…For example, geothermal energy may be extracted from hot water contained or injected into deep reservoirs and disused coal mines; CO2 may be stored within depleted petroleum reservoirs and deep saline aquifers; nuclear waste may be disposed of within mechanically stable impermeable strata; surplus heat may be stored within shallow aquifers or disused coal mines. …”
Get full text

Control and Application of Terrain Curvature on Dynamic Disasters: A Case Study of Coal and Gas Outbursts in the Pingdingshan Mining Area, China by Dequan Sun, Ying Chen, Xiaoyan Li, Chunhui Huang, Huairui Su, Rujiao Chen

“…By using the N-shaped landform in the Pingdingshan coal mine as a case study, an area having strong tectonic activity and coal and gas outbursts was recorded to occur where terrain curvature changed, notably occurring where the positive curvature radius was 80.21% of the total. …”
Get full text

The Materialization Characteristics and Ratio of a New Soil Paste Filling Material by Zhi Wang, Weijian Yu, Fangfang Liu

“…The test results show that the optimal ratio of the new paste filling material in the coal mine is the quality ratio of coal zircon: red soil: cement as 6 : 2 : 1, and the slurry concentration is 80%, which can not only meet the transportation requirements required by the filling process but also reduce the cost of filling, and with the extension of the maintenance age, the filling material produces more gel products, and the overall structure is more encrypted.…”
Get full text

Novel Energy-Efficient Miner Monitoring System with Duty-Cycled Wireless Sensor Networks by Peng Guo, Tao Jiang, Kui Zhang

“…In this paper, we propose a localization-MAC codesign approach for the monitoring system under the environment of coal mine. With the proposed approach, the system can achieve higher localization accuracy with low energy consumption and transmission delay, compared with existing range-free localization methods for sensor nodes.…”
Get full text