Based on FLAC3D Simulation and Parameter Optimization of Advanced Support with Bolts at Different Angles
Anchor rods,as an effective support measure,are widely used in the field of advanced support in tunnels.The quality of design and execution of advanced anchor rods directly affects the performance of tunnel support.Based on FLAC3D finite element software,simulations of advanced support were conducted for graded anchor rods at different angles ranging from 0° to＜50°.By revealing the mechanical effects on the tunnel under the action of advanced support with anchor rods at different angles and the patterns of change with varying anchor rod angles,the support angle was optimized.The optimal support angle was determined.The research results can provide theoretical support for the design,optimization,and construction of advanced support in tunnels,and have certain guiding significance.
tunnel advance supportdifferent angle boltFLAC3Dmechanical effectoptimum support angle
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