The Detection Research of Roadway Roof Strata Structure in Coal Seam

Abstract:

Through the structure instability theory analysis of the coal roadway roof ,the author concluded that mechanical properties of rock, location, thickness and thickness ratio is the main factor affecting the instability and failure of rock structure. Capitalize on the roof caving hidden danger detector developed by the China university of mining and technology to synchronize, continuous and intensive monitor the rotational speed, thrust for synchronization and thrust. Based on the record ,the author inferred the coal seam roof lithology and rock structures of the different drilling location. Engineering practice shows that the use of roof caving hidden danger detector to identify lithology of strata and structure is in good agreement with the core test values. Coincidence rate reached 95.14% and the recognition effect is quite good.

• Periodical: Advanced Materials Research (Volumes 734-737)
• Pages: 677-681
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.734-737.677
• Online since: August 2013
• Authors: Qing Xiang Zhang*, Hou Sheng Jia, Long Fan, Xi Dong Zhao, Zhi Gang Wang, Jun Long Xing
• Keywords: Rock Structure, Roof Lithology

References

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