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Field test of rock burst danger based on drilling pulverized coal parameters
Rock burst is one of the worst natural disasters in coal mining. Drilling cuttings method is an effective way of identifying rock burst danger degree by testing discharged pulverized coal quantity,Expand
Numerical Investigation on Factors Affecting Stability of Roadway Surrounding Rock with Fractured Roof
Based on the feature of roadway surrounding rock with fractured roof, the influencing factors on the stability of roadway surrounding rock with fractured roof were analyzed. It was found that theExpand
Multi-Index Monitoring and Evaluation on Rock Burst in Yangcheng Mine
Based on the foreboding information monitoring of the energy released in the developing process of rock burst, prediction system for rock burst can be established. By using microseismic method,Expand
Failure Mechanism Analysis and Support Design for Deep Composite Soft Rock Roadway: A Case Study of the Yangcheng Coal Mine in China
This paper presented a case study of the failure mechanisms and support design for deep composite soft rock roadway in the Yangcheng Coal Mine of China. Many experiments and field tests wereExpand
Bending Moment Characteristics of Hard Roof before First Breaking of Roof Beam Considering Coal Seam Hardening
The mechanical properties of a coal seam affect the distribution of support pressure. Considering the strain hardening effect of coal seam, the support pressure relationship of three zones—softened,Expand
Occurrence Mechanism of Roof-Fall Accidents in Large-Section Coal Seam Roadways and Related Support Design for Bayangaole Coal Mine, China
This study focused on large-scale roof-fall accidents occurred in large-section coal seam roadways of Bayangaole Coal Mine, Inner Mongolia, China, and investigated the occurrence mechanism ofExpand
Rock burst trend research and burst hazard assessment of complex structure coal seam in deep mining
As a kind of common and very serious natural disasters, rock burst was greatly caused by large mining depth and geological structures. Based on the experimental study of dynamic damage time, elasticExpand
Risk in Deep Strip Mining
State Key Laboratory of Mining Disaster Prevention and Control Co-Founded by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, QingdaoExpand
Rock Burst Danger Warning and Large Diameter Drilling Pressure–relief Technology in Fully Mechanized Caving Island Coal Face
According to the appeared incident dynamic pressure of 1304 working face in a mine, the characteristics of electromagnetic emission signal were analyzed before the dynamic pressure occurred; FLAC3DExpand
Study on the Regularity of Ore Pressure in Overburden Hard Rock Working Face of Overburden Mining on Reverse Faults
In order to study the mining pressure on the upper coal seam in the fault, the working pressure of the working face with a hard rock roof is based on the production geological conditions of the 3301Expand
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