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Key technology of gob-side entry retained by roof cutting without coal pillar for hard main roof: A typical case study
This study results from the authors’ long-term efforts to develop key technology of gob-side entry retained by roof cutting under hard main roof....
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Numerical Simulation Study on Mechanism of Roof Directional Breaking in Gob-Side Entry Formed Automatically Without Coal Pillars
To explore the mechanism of roof directional breaking in gob-side entry formed automatically without coal pillars, the numerical simulation was used...
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Roof control mechanism and partition compensation support technology of gob-side entry formed by N00 mining method in thin coal seam
To achieve scientific and accurate support for the roadway roof in the N00 mining method for thin coal seams, the roof-cutting self-forming roadway...
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Overlying main roof breaking characteristic and its effect on the stability of gob-side entry
In this study, to figure out the deformation mechanism, a particle flow model was used to simulate the deformation of surrounding rock in a deeply...
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Geomechanical Model Experiment Research on the Automatically Formed Roadway Without Pillars in a Kilometer-Deep Coal Mine
The technology of automatically formed roadway without pillars (AFRP) via roof cutting and pressure releasing (RCPR) is a reformatory method for...
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Failure mechanism of gob-side roadway in deep coal mining in the **njie mining area: Theoretical analysis and numerical simulation
In deep coal mining, complex stress and mining conditions often cause large deformation and roof falling of roadway, which seriously threatens the...
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Research on abutment stress distribution of roof-cutting coalface: numerical simulation and field measurement
During the processing of deep mining, revealing the distribution of abutment pressure is significant for controlling stability of the entry. In this...
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Analysis of the EFARC non-pillar mining stope: roof failure and overlying pressure in inclined coal seams
During the process of coal mining, there is a violent appearance of mining stress when the initial weighting occurs. To guarantee the safety of the...
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Stress and deformation evolution characteristics of gob-side entry retained by the N00 mining method
AbstractThe N00 mining method, as a novel coal mining technology, differs greatly in both the mining process and key technologies from traditional...
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Research and application of mechanical models for the whole process of 110 mining method roof structural movement
For the 110 mining method, it is challenging to accurately calculate the support resistance of the roadway due to the lack of understanding of the...
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Research on cooperative control method of comprehensive pressure relief and anchor grouting reinforcement in deep mining roadways
To address the surrounding rock control problems in high-stressed deep mining roadways, we used Suncun Coal Mine with maximum mining depth in China...
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Deformations and failures of goaf-side entries driving adjacent to longwall top coal caving panel
This paper utilizes physical and numerical model experiments to study the deformation and failure mechanisms of goaf-side entries driving adjacent to...
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The identification method for rock strength and joint while drilling based on cutting energy density
Rock strength and joint parameters are the basic parameters reflecting engineering rock quality. The traditional rock strength testing method...
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Stability control of deep-buried roadways using large deformation and increasing resistance anchor cables
A new large deformation and increasing resistance anchor cable was developed. The energy absorption and pressure release were achieved through...
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Spalling Hazard Occurrence in Longwall Excavation: a Case Study
One of the most significant concerns in longwall ground control is the instability and failure mechanism of the coal wall. The current research uses...
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