Results 51 to 60 of about 1,800 (220)

A geological fence diagram for England and Wales [PDF]

, 2012
This report contains a brief description of the data and methodology used to compile the National Geological Fence Diagram (NGFD). The NGFD comprises a network of intersecting geological cross-sections covering England and Wales, to a minimum depth of
Ambrose, K., Barron, A.J.M., Hopson, P.M., Mathers, S.J., Myers, A.H., Schofield, D.I., Terrington, R.L., Waters, C.N.   +7 more
core  

Experimental and Theoretical Investigation on the Progressive Breaking Law of Thick and Hard Rock Strata in Deep Mining

Energy Science &Engineering, EarlyView.
This work reveals the “C‐Y,” double “Y,” “π,” and “Y” fracture modes of thick, hard strata and their progressive breaking process (O‐F‐R/S mode), providing a theoretical basis for controlling strong ground pressure in deep mining. ABSTRACT In response to the dynamic hazards caused by the fracture of thick‐hard strata in deep mining, this study ...
Meilu Yu, Jianping Zuo
wiley   +1 more source

groundwater, drainage experiment, evolution of flow field, hydrogeological parameters, steady flow,

Meikuang Anquan, 2020
The first mining face 122106 in Caojiatan Coal Mine was taken as the research object. The main water filling sources and water filling channels during the mining period of the working face are determined.
HUANG Hao, FANG Gang, LIANG Xiangyang, LIU Yang, HUA Zhaolai, LYU Yang
doaj   +1 more source

Water‐Inrush Risk Assessment of Roof‐Confined Aquifer Strata Based on FAHP–RF Model in the Arid–Semiarid Ecotone: A Case Study of Zhuanlongwan Coal Mine

Geofluids, Volume 2026, Issue 1, 2026.
Water inrush poses a serious threat to the safety and sustainability of coal mining operations, particularly in arid–semiarid regions where confined aquifers overlie coal seams. Therefore, an accurate assessment of roof water inrush risk is essential to prevent water hazards on the roof.
Sen Xue, Qichen Guo, Qiqing Wang, Yun Wu, Menglong Zhang, Zhen Song, Wenping Li, He Yongliang   +7 more
wiley   +1 more source

Distribution and controlled geological factors of oil-rich coal in shaanxi province

Meitan kexue jishu, 2023
The green, clean and efficient utilization of coal is an important way for the sustainable development of coal industry. Shaanxi province is rich in coal resources, which are mainly distributed in the five coal fields in the north of Shaanxi province ...
YANG Fu, DUAN Zhonghui, MA Li, FU Deliang, TIAN Tao, HE Dan, YUE Mingjuan   +6 more
doaj   +1 more source

User guide for the BGS Methane and Carbon Dioxide from Natural Sources and Coal Mining Dataset for Great Britain [PDF]

, 2011
This report presents a description and review of the methodology developed by the British Geological Survey (BGS) to produce an assessment of the potential hazard from Methane and Carbon Dioxide from Natural Sources and Coal Mining in Great Britain.
Appleton, J.D.
core  

Research on formation mechanism of the mining-induced horizontal fractures in rock strata separation in the Jurassic coalfield, Huang long, Shaanxi, China

Energy Reports, 2022
To analyze the mining-induced mechanism of the horizontal fractures due to bed separation in Jurassic coalfield, China, the mineral composition identification test, triaxial compression tests, and overburden response were performed in this study.
Luyuan Wu, Jianwei Zhang, Zifa Wang, Dan Ma, Guangjin Wang   +4 more
openaire   +2 more sources

Deformation and Fracture Behavior of Argillaceous Weakly Cemented Rock Under Hydromechanical Interaction: Experimental Study and UDEC‐Trigon Simulation

Geofluids, Volume 2026, Issue 1, 2026.
This study investigates innovative methods to address the stability issues of roadways with argillaceous weakly cemented surrounding rock (AWCR) in western China′s coal mining regions. The research focuses on the hydromechanical properties of AWCR, analyzing its mineral composition, pore structure, and microstructure, which reveal high porosity and ...
Zhijiang Lun, Zizheng Zhang, Weiguang Zhang, Honglei Wei, Shuaigang Liu, Tianshou Ma   +5 more
wiley   +1 more source

How many species of fossil arachnids are there? [PDF]

, 2008
The species-level diversity of fossil Chelicerata is summarized for each order. 1952 valid species of fossil\ud chelicerates are currently recognized, of which 1593 are arachnids.
Anderson, L. I., Dunlop, J. A., Penney, D., Tetlie, O. E.   +3 more
core   +1 more source

Distribution, Occurrence and Enrichment Causes of Sodium in Middle Jurassic Coal from Zhundong Coalfield, Xinjiang

Minerals
The coal found in the Zhundong Coalfield is highly suitable for power generation and gasification. However, the high sodium content within the coal leads to severe boiler slagging and contamination. Additionally, sodium disperses into the gaseous phase to form haze, adversely affecting the local atmospheric environment.
Yulong Wang, Wenfeng Wang, Wenlong Wang, Piaopiao Duan, Xin He, Qingfeng Lu   +5 more
openaire   +1 more source