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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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Research on Novel Method of Gob-Side Entry Retaining Under the Synergistic Effect of Roof Cutting and Roadside Filling in Thick Coal Seams
With the increase of coal seam mining thickness, the caving height of stope roof, the mining-induced stress increase, and the control difficulty of...
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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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Study on the formation of gangue wall and the stress distribution of surrounding rock in gob side entry with roof cutting
To study the formation mechanism of gangue wall and the stress distribution of surrounding rock in gob-side entry with roof cutting at different...
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Mechanism and surrounding rock control of gob-side entry formation passing through normal fault: a case study
Geological faults are widely distributed in stratum and have an important influence on underground mining. To increase the mining rate of coal...
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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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Study on characteristics of pressure relief by roof cutting under nonpillar-mining approach
Study on characteristics of pressure relief by roof cutting provides useful underground stope stability information under the nonpillar-mining...
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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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Evaluation of roof cutting by directionally single cracking technique in automatic roadway formation for thick coal seam mining
Automatic roadway formation by roof cutting is a sustainable nonpillar mining method that has the potential to increase coal recovery, reduce roadway...
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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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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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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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Stability control measures for roof cutting and NPR supporting of mining roadways in fault areas of kilometre-deep coal mine
The study focuses on the stability control measures for mining roadways in fault zones of deep mines, using Daqiang Coal Mine as a case study. The...
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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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Control mechanism of roof fracture in no-pillar roadways automatically formed by roof cutting and pressure releasing
The technology of automatically forming a no-pillar gob-side entry retaining by roof cutting and pressure releasing (RCPR) effectively cuts off the...
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Instability mechanism of mining roadway passing through fault at different angles in kilometre-deep mine and control measures of roof cutting and NPR cables
The angle α between the fault strike and the axial direction of the roadway produces different damage characteristics. In this paper, the research...
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Research on Deformation Characteristic and Stability Control of Surrounding Rock During Gob-Side Entry Retaining
In order to reveal the deformation characteristic of surrounding rock in gob-side entry retaining formed automatically, this paper compares 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...
