Research on the quantitative relationship between stress shadow effect of multiple thick and hard key layers and surface subsidence by Jianqiao Luo, Yupeng Shen, Xin Meng, Tuo Yang

“…Abstract For a long time, the management of surface structures such as villages and rivers affected by underground coal mining has been a popular and difficult issue in coal mining. …”
Get full text

Evaluation of coal export from Russia by A. V. Korolyatin, Yu. N. Linnik

“…Dynamics of coal mining in Russia and also export of coal from Russia has been presented. …”
Get full text

Paternalismo industrial y control social. Las experiencias disciplinadoras en la minería del carbón en Chile, Lota y Coronel en la primera mitad del siglo XX by Hernán Venegas Valdebenito

“…The paper focuses on the analysis of extensive control practices in the field of coal mining in Southern Chile. The article examine the transformations of these strategy, particularly those recognized under the concept of patronage and paternalism industrial, and how the latter is characterized by the intensity of control and sense of it all-encompassing. …”
Get full text

Risk Assessments of Water Inrush from Coal Seam Floor during Deep Mining Using a Data Fusion Approach Based on Grey System Theory by Yaru Guo, Shuning Dong, Yonghong Hao, Zaibin Liu, Tian-Chyi Jim Yeh, Wenke Wang, Yaoquan Gao, Pei Li, Ming Zhang

“…For the safety of coal mining, horizontal directional drilling and grouting techniques have been implemented to detect and plug the fractures and conduits that deliver high-pressure groundwater to coal mine. …”
Get full text

Determination of Mining-Induced Changes in Hydrogeological Parameters of Overburden Aquifer in a Coalfield, Northwest China: Approaches Using the Water Level Response to Earth Tide... by Qingyu Xu, Guangcai Wang, Xiangyang Liang, Shen Qu, Zheming Shi, Xianbin Wang

“…., permeability and specific storage) of aquifers disturbed by mining activity is significant to groundwater resource and ecological environment protection in coal mine areas. However, such parameters are difficult to continuously measure in situ using conventional hydrogeological methods, and their temporal changes associated with coal mining are not well understood. …”
Get full text

Study of the Fracture Law of Overlying Strata under Water Based on the Flow-Stress-Damage Model by Zhijie Wen, Suolin Jing, Yujing Jiang, Lei Tian, Jinhao Wen, Zhiguo Cao, Shaoshuai Shi, Yujun Zuo

“…To accurately detect the development height of the water flowing fractured zone (WFFZ) in the overlying strata of the working face after mining under water and to ensure the safety and reliability of coal mining, the coal seam located under Weishanhu Lake in the Jisan coal mine was used as the experimental system. …”
Get full text

A Case Study of Cyclic Top Coal Weakening Process Based on Highly Tough Coal Seam with Partings by Zhaopeng Wu, Junhui Wang, Zhijun Wan, Jingyi Cheng, Luchang Xiong, Lizhu Zhao, Xiaogang Liu

“…In the context of highly tough top coal with partings at working face 110501 for fully mechanized top coal caving mining in Yushutian Coal Mine, effects of parting band and high toughness on top coal breaking were studied in terms of mechanism and extent, a multifunctional compound drilling field integrating blast weakening, water injection weakening, and gas extraction was purposefully designed, and a cyclic top coal weakening process for highly tough coal seams with partings was proposed. …”
Get full text

Research on wireless monitoring system for internal temperature field of coal gangue mountain by Xiaofei Liu, Chunhao Liang, Jifa Qian, Xiaolin Li, Xuemei Li, Baoli Li, Guang Xu, Bin Zhou

“…Simultaneously, field tests were performed in the coal gangue mountain at the coal mine. The laboratory simulation and field test results demonstrate that the system can effectively monitor the internal temperature changes of the gangue mountain, particularly within the horizontal range of 0–0.2 m near the heat source and the vertical range of 0–0.3 m. …”
Get full text

Danos ambientais e subsidência de mineração: lições extraídas de uma revisão sistemática da literatura by Verônica Nascimento Brito Antunes, Michêlda Santana da Silva

“…The results show that China is the country that produces the most research related to the area of study and highlights coal mining as one of the main focuses of investigation. …”
Get full text

STUDY ON FAILURE MODE AND COUNTERMEASURES OF SHEARER PICKS by ZHAO LiJuan, ZHAO MingYang, LIU XuNan

“…In order to improve the efficiency of coal mining and the service life of shearer,the failure mode and the reasons of cutting teeth were analyzed,and the influence caused by cutting tooth failure was described,in view of the selection,research and development design,manufacturing process and use of cutting teeth in different geological conditions,the countermeasures were discussed,and the quality of cutting teeth is improved by means of reasonable selection of the type of cutting tooth,the geometrical parameters,the optimized blade spiral angle,the application of tribology theory,the use of new cutting material,the surface strengthening and the operation of the workers. …”
Get full text

The focal mechanism and field investigations of mining-induced earthquake by super-thick and weak cementation overburden strata fracturing by Xianxi Bai, Anye Cao, Changbin Wang, Yaoqi Liu, Chengchun Xue, Xu Yang, Yao Yang, Songwei Wang, Qi Hao

“…During mining along goafs, the seismic sources displayed a tendency of upward expansion and the shear slip ruptures were more than that in the solid coal mining stage. The focal mechanism of the MIEs in Shilawusu Coal mine was caused by the primary and periodic tension rupture of the STWCS and shear slip rupture. …”
Get full text

A Life Lived in Class by Diane Reay

“…I am going to focus on two fields: the working-class coal-mining community of my childhood and youth, and the educational system. …”
Get full text

Precisely positioning method for roadheaders and robotic roadheader system by Xinming LU, Changqing YAN, Zhaoping YUAN

“…To overcome the problems faced in underground positioning,the robotic roadheader mine Internet of things (IoT) was designed which connected multi sensors,surveying devices and industrial computers,and a novel positioning method was developed,based on which a robotic roadheader system was built.The robotic roadheader system was employed for real-world tunnel cutting.The experimental results verifies the high accuracy of the positioning method,which achieves an RMSE error less than 5 cm,and the robust running of the robotic roadheader indicates that the robotic roadheader system can precisely perceive the surrounding environment and make precise interaction with the working environment,which yield a safety,high efficiency,and precisely underground tunnel building and coal mining and an unmanned working surface.…”
Get full text

Outburst mechanism and hazard prevention technique of limestone aquifer under isolated island panels by Wei Wang, Wei Wang, Wei Wang, Yanjun Wu, Yanjun Wu, Yanjun Wu, Yongli Shi, Yongli Shi, Yongli Shi, Jingzhong Zhu

“…The theoretical results and engineering application in this study have significant implications for coal mining on other isolated islands affected by panel floor water damage.…”
Get full text

Insight into influence of degradation metabolism of Firmicutes on the microstructure of anthracite coal by Yuewu Wang, Bingjun Liu, Sheng Xue, Yang Yang, Jian Chen, Jingbei Zhang, Chunshan Zheng, Tianyao Zhou

“…This will help improve the efficiency of gas extraction and ensure the safety of coal mine production.…”
Get full text

Mechanism of Coal Bump among Mine Group under the Control of Large Geological Body: A Case Study of Yima Mining Area, China by Yizhe Li, Shankun Zhao, Qingxin Qi, Pengzhi Pan, Xiangzhi Wei, Yin Wang, Ningbo Zhang, Yang Zhao, Haitao Chai, Qilin Hao

“…Coal bump often occurs in coal mining among many working faces in mine group under the control of large geological bodies. …”
Get full text

Valuation method for sub-indicators of rock burst risk based on mining depth and tectonic stress by Zhen LI, Guanyang WU, Shangjin SI, Xin GAO, Xun LIU, Dongdong ZHANG, Chengxiang ZHANG, Jiachen LIU

“…Rock burst disasters are often induced under the disturbance of coal mining. The rock burst risk assessment plays an important role in the prevention of dynamic disasters. …”
Get full text

As estratégias da logística contemporânea como instrumento de ordenamento territorial na reconversão em Nord e Pas-de-Calais (França) by Mauricio Aquilante Policarpo, Rita de Cássia Martins de Souza

“…Reconversion, as a geostrategy, seeks to change the expertise of the area from the crisis of the traditional industries (coal mining and textiles) and the consequent problem of unemployment and economic atony. …”
Get full text

Photobooks dedicated to Gunkanjima: Random Personal Memories or Strategical Publications? by Cecile Laly

“…The publications were released mainly over the last two decades, around the time Japan began the UNESCO application proceedings for the Tentative List of “Sites of Japan’s Meiji Industrial Revolution: Iron and Steel, Shipbuilding and Coal Mining”, which includes a total of twenty-three sites, among which is Hashima. …”
Get full text

Mechanism Kinematics Analysis of Two-leg Shield Hydraulic Support by Wang Hongwei, Dong Zhifeng

“…As a multi-linkage mechanism with multi-degree of freedom,the two-leg shield hydraulic support is comprised of beams,fore and rear links and hydraulic cylinders.It can realize supporting roof,protecting coal wall and moving forward under the function of hydraulic power,and plays an important role in coal mining.According to structure and operating characteristics of the two-leg shield hydraulic support,the geometrical relationship and calculations about rear link angle and shield beam angle for the supporting height,head distance,leg length and balance cylinder length are deduced.The differential equation of motion for the hydraulic support is established by the Lagrangian theory,and the support type of ZY17300/32/70 is calculated and analyzed.The relationship between angle displacement and velocity for the rear link angle and shield beam angle along with the motion characteristic of supporting height is obtained.The response characteristics of motion velocity and acceleration for top beam are discussed during the working process of lifting up and down.…”
Get full text