Research and Development of Erosion-control and Pressure Relief Steel Strip and its Application in Rock Burst Roadways
Aiming at the problem that the roadway is easy to explode gang under the condition of high ground pressure in the 311204 working face return air crossheading of Bayangole Coal Mine.A new type of erosion-control and pressure relief steel strip is studied and developed,and room temperature compression tests are conducted.Through methods of theoretical analysis and industrial testing,the mechanical characteristics of the erosion-control and pressure relief steel strip are analyzed,the advantages of high stiffness,pressure relief with increased resistance,high strength and others of the erosion-control and pressure relief steel strip are summarized.The application feasibility of the composite support method of anchor mesh cable+erosion-control and pressure relief steel strip in the rock burst roadway is evaluated,and on-site industrial testing is carried out to reduce the deformation amount of the roadway roof and two sides,alleviate the phenomenon of roadway exploding gang,ensure safe and efficient production,and provide reference for the support design of roadways with high ground pressure and impact hazards.
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