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401
An Automatic Recognition Method of Microseismic Signals Based on S Transformation and Improved Gaussian Mixture Model
Published 2020-01-01“…Firstly, the time-frequency characteristics of microseismic signals in coal mine are extracted by ST analysis. It is found that there are obvious time-frequency differences between rock-fracturing signals and blast vibration signals. …”
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402
Experimental and Numerical Evaluation of Rock Dynamic Test with Split-Hopkinson Pressure Bar
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403
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404
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405
Microseismic Response Characteristics Induced by Mining Activities: A Case Study
Published 2021-01-01“…For deep coal mines, geological disturbances or mining activities can cause damage to coal and rock masses, easily inducing dynamic disasters such as rock bursts or coal and gas outbursts, which seriously threaten the safety production of coal mine. …”
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406
Overlying strata movement law and rockburst prevention & control for fully mechanized top coal caving face in extra-thick coal seams
Published 2025-02-01“…Taking the 12,240 working face of Gengcun Coal Mine as the engineering background, initially, the calculation formula for the collaborative deformation load of hard rock strata and the formula for the instability scale of hard rock strata are employed to precisely ascertain the position and instability scale of the key strata. …”
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407
Evolution characteristics of overburden structure in inclined fully mechanized caving under residual coal pillars of the upper layer
Published 2024-12-01“…Based on the 250203 lower fully mechanized caving face at Yanbei Coal Mine of Gansu Huating Coal Power Co., Ltd., methods of physical similarity simulation experiments, numerical modeling, and field measurements were applied to study the overburden movement and stress distribution evolution characteristics under residual coal pillars of the upper layer during inclined fully mechanized caving. …”
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408
Experimental Study on Compaction Characteristics and Mechanical Behavior of Crushed Rock Masses
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409
Analysis of the Occurrence Mechanism for Coal and Gas Outburst Based on Multiple Discriminant Indices
Published 2019-01-01“…In order to reveal the occurrence mechanism of coal and gas outburst and optimize the measures to prevent the disaster, a coal mine in Henan Province was undertaken as the research background. …”
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410
A Novel Design of Rescue Capsule considering the Pressure Characteristics and Thermal Dynamic Response with Thermomechanical Coupling Action Subjected to Gas Explosion Load
Published 2017-01-01“…The design method presented in this work provides a new thought for design of coal mine rescue capsule.…”
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411
Analysis on Rock Burst Risks and Prevention of a 54 m-Wide Coal Pillar for Roadway Protection in a Fully Mechanized Top-Coal Caving Face
Published 2021-01-01“…A case study based on the 401103 fully mechanized caving face in the Hujiahe Coal Mine was carried out in this research to analyze the rock burst risks in a 54 m-wide coal pillar for roadway protection. …”
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412
Mechanical Mechanism of Water Injection to Enhance the Stability of Soft Coal
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413
Cocompetitive Characteristics and Quantitative Design of Engineering Parameters for Coal Gas Predrainage Boreholes
Published 2022-01-01“…Finally, Comsol With Matlab is used to solve the multiconstraint nonlinear optimization problem of gas drainage engineering parameters along coal seam in 18401 working face of Tunlan Coal Mine. The effect of actual gas extraction investigation is very remarkable, which provides a quantitative calculation basis for scientific gas extraction in coal mine.…”
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414
A Control Approach of the Roof in No-Pillar Roadway Formed by Roof Cutting and Pressure Releasing
Published 2021-01-01“…Based on the Qiuji coal mine’s background, the numerical and field test study is conducted to verify the theoretical analysis, and the allowable variation range of roof cutting distance is obtained. …”
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415
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416
Probabilistic Prediction of Mine Dynamic Disaster Risk Based on Multiple Factor Pattern Recognition
Published 2018-01-01“…Rock burst and coal and gas outburst are the most serious dynamic disasters in coal mine and are affected by many factors, such as mining engineering environment. …”
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417
Intelligent Robust Control of Roadheader Based on Disturbance Observer
Published 2025-01-01“…The formation of a coal mine roadway cross-section is a primary task of the boom-type roadheader. …”
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418
Study on Stability Control of Retained Gob-Side Entry by Blasting Fracturing Roof Technology in Thick Immediate Roof
Published 2021-01-01“…A retained gob-side entry technique is popular in longwall mining coal mines, because the excavation of an entry is reduced for the next panel. …”
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419
Research on Optimization of a Solid Filling Mining Face Layout Based on a Combined Clamped Beam Model
Published 2021-01-01“…The maximum width of the mining face is 105 m in Tangshan Coal Mine. When the mining width increases from 66 to 105 m, the increasing percentage of roof subsidence is 15–18%. …”
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420
State Judgement Model of the Coal and Rock Medium and Its Engineering Application
Published 2020-01-01“…This provided a new approach to evaluate the damaging failure extent of the coal and rock medium in the Chenjiagou Coal Mine.…”
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