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481
Analysis of Energy Dissipation Characteristics of Damaged Sandstone under Impact Load
Published 2021-01-01Get full text
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484
The Stability of Gob-Side Entry Retaining in a High-Gas-Risk Mine
Published 2019-01-01“…There are series of problems faced by most of the coal mines in China, ranging from low-coal recovery rate and strained replacement of working faces to gas accumulation in the upper corner of coalfaces. …”
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485
A GIS Based Unsteady Network Model and System Applications for Intelligent Mine Ventilation
Published 2020-01-01“…The study is potential and is expected to guide the real-time coal mine safety production.…”
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486
Variation Pattern of the Stress-Strain Curve of Concrete under Multifactor Coupling
Published 2022-01-01“…The air shafts of coal mines contain solid, liquid, and gaseous substances that corrode concrete under conditions of relatively high temperature and humidity. …”
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487
Experimental Study on Mechanical Properties and Acoustic Emission Characteristics of Water Bearing Sandstone under Stable Cyclic Loading and Unloading
Published 2020-01-01“…Furthermore, considering the long-term effects of repeated pumping and drainage and hydrodynamic pressure on the surrounding rock in coal mines, a large amount of sandstone was collected from the Ruineng coal mine in Yan’an city to carry out a series of laboratory tests. …”
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488
Experimental Analyses of the Major Parameters Affecting the Intensity of Outbursts of Coal and Gas
Published 2014-01-01Get full text
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489
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Multistage identification method for real-time abnormal events of streaming data
Published 2019-12-01“…Coal mine micro-seismic signal is of great importance in the investigation of vibration characteristic, attenuation law, and disaster assessment of coal mine disasters. …”
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Mechanical-Chemical-Mineralogical Controls on Permeability Evolution of Shale Fractures
Published 2018-01-01Get full text
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494
Experimental Study of Reinforcing Broken Gangues by Colloid Cement Slurry
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495
New type of hot spot cluster centered positioning algorithm and its application
Published 2012-05-01“…Considering the facts that the personnel orientation in the coal mine was difficult,and the existing algorithm is of high fixed position error,a new algorithm of hot spot cluster centered positioning for terrain underground in the coal mine was designed.The locations of moving nodes in po ion area were classified by using the RSSI,and the blind spots problems of positioning,which was not explained by the locating method mentioned in the existing literatures,was solved efficiently by means of new algorithm.Besides,the algorithm improved the real time performance and the accuracy of positioning.The validity of new algorithm was verified by the result of numerical simulation and experiment.…”
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496
Mechanical Behavior and Impact Resistance Tendency of Coal Mass with Different Water Content
Published 2022-01-01“…As a major hidden danger of mine safety production, the impact resistance tendency of rock seriously restricts the safety and high yield of coal mine. At the same time, as one of the puzzles of rock mechanics, it has been perplexing many domestic and foreign scholars since the recorded rock burst in South Stafford coal mine in 1738. …”
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497
Risk assessment of gas explosion based on fuzzy Bayesian network improved by entropy weight method
Published 2025-01-01“…In order to accurately and effectively evaluate the risk of gas explosion in coal mines, an improved fuzzy Bayesian network gas explosion risk assessment model based on entropy weight method is proposed. …”
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498
New Insights into the Drill Cutting Characteristics and Fault Distribution in Gas-Containing Coal Seams
Published 2022-01-01“…With coal seams of different buried depths in Luling Coal Mine, Yuenan Coal Mine, and Sihe Coal Mine with obvious difference in hardness and outburst hazards selected as the research objects, the morphological characteristics of a sample particle size such as the Rosin-Rammler distribution function, average particle size, cumulative mass distribution, and mechanical parameters such as particle strength and F value were statistically analyzed through drill cuttings related to sampling points at different positions of faults already known. …”
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499
Study on the Support System Mechanism of Entry Roof with Roof Cutting Pressure Releasing Gob-Side Entry Retaining Technology
Published 2022-01-01“…Then, taking 8304 working face of Tashan Coal Mine as an example, the stress distribution characteristics of the surrounding rock in different entry retaining stages are simulated by numerical simulation, which provides an important reference for the field support design and puts forward an idea of hierarchical support. …”
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500