Study on Strengthening Control Technology in High Ground Pressure and Soft Rock Roadway
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Graphical Abstract
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Abstract
Combined with the engineering example of 6# coal group rise entry in Qinan coal mine,this paper puts forward the strengthening controlling principle route for controlling large deformation in high ground pressure and soft rock roadway.That is strengthening the bearing properties of bolt,strengthening the surrounding rock strength and weakening area reinforcement support by using FLAC2D5.0 numerical simulation software.Combining with the industrial test,the support in high ground pressure and soft rock roadway is designed.Field monitoring results show that the roadway support is in good condition,which successfully resolves the deformation and instability problems in high ground pressure and soft rock roadway of 6# coal group rise entry.
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