Research on Optimization of Bolt Support for Tilted Strata Roadway in Soft Rock

Liang Tian; Shao Peng Jiao; Wen Feng Zhao; Xian Yong Hao; Cheng Cheng

doi:10.4028/www.scientific.net/AMR.962-965.379

Paper Titles

The Test Analysis of the Bearing Capacity of Foundation
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Surface Characteristics and Flotation Behaviour of Low-Grade Manganese Ore
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Based on Numerical Simulation Study of Rockburst in Roadway Induced by Fault
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Classification of Rock Burst Tendency Based on Uncertainty Measurement Theory
p.375

Research on Optimization of Bolt Support for Tilted Strata Roadway in Soft Rock
p.379

The Research of Blasting Dynamices to Slope Rock Mass Damage
p.384

A Review on Flotation Process of Scheelite
p.388

Experimental Application of TorkBuster Torsion Compactor in Exploration Wells of Junggar Basin
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The Log Interpretation Analysis of the Block A in the South of the Fergana Basin
p.397

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 962-965Research on Optimization of Bolt Support for...

Research on Optimization of Bolt Support for Tilted Strata Roadway in Soft Rock

Abstract:

Bad and asymmetrical deformation occurred in soft tilted strata roadway for the existence of tectonic stress, we carried out the study on geostatic stress character and optimizing bolting support parameters in 2# coalbed of Zijin Colliery. Based on original rock stress measurement, broken rock zone measurement and survey of roadway deformation, characters of original rock stress and range of broken rock zone were given. According to existent problems, a variety of numerical computations were carried out by FLAC3D, failure mechanism of roof is shear-tensile failure. New support methods of bolt installed vertically in tilted roof and strengthening support of sidewalls and corners of roadway are figured out. The research was carried out for 600 meters. The monitoring results prove that the optimized support design is viable and the new bolting parameters are reasonable.

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Periodical:

Advanced Materials Research (Volumes 962-965)

Pages:

379-383

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.962-965.379

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Online since:

June 2014

Authors:

Liang Tian*, Shao Peng Jiao, Wen Feng Zhao, Xian Yong Hao, Cheng Cheng

Keywords:

Bolt Support, Failure Mechanism, Gentle Tilted Strata, Numerical Simulation, Original Rock Stress

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* - Corresponding Author

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