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The Study On The Deformation Mechanism Of Roadway At Depth Base On Numerical Simulation

Posted on:2007-07-09Degree:MasterType:Thesis
Country:ChinaCandidate:B Y ZhaoFull Text:PDF
GTID:2121360182973356Subject:Engineering Mechanics
Abstract/Summary:PDF Full Text Request
Under the foundation of referencing massive articles, the deformation features of high stressed soft rock are analyzed considering all the influence factors. Base on the engineering background of Lv Jia Tuo Coal Mine, the roadway numerical model of the mine is established, the deformation features of high stressed soft rock tunnel at depth mining is simulated personally under different press coefficient, various cross-section of tunnel and tunneling by using FLAC3D, and the mechanism of deformation and failure of high stressed surrounding rocks of roadways are studied through the numerical modeling. The cable-mesh-anchor coupling support theory is advanced which adapts to the high soft rock roadway deformation's control, utilizing the coupling support theory and considering the deformation features of high soft rock roadways, the support design schemes are promoted to the main two surrounding rocks at depth of Lv Jia Tuo Coal Mine. And the modeling of the support design scheme's effect also performed, the modeling results prove the rationality and the validity of the coupling support design schemes, and the results also provide directive conclusion to the continuative field engineering experiment.
Keywords/Search Tags:high soft rock, mechanics of deformation, numerical simulation, coupling support, support design
PDF Full Text Request
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