Analysis and Application of Anchor Support System in Subgrade High Side Slope
Based on the example of Mile to Yuxi Highway project,a calculation model of slope anchor support was established.The effects of different anchor vertical position,lateral spacing and anchor anchorage inclination on the slope support safety coefficient were studied.The results show that the closer the anchor position is to the bottom of the slope,the higher the slope safety coefficient is,and the slippage of soil body due to shear damage can be effectively avoided.The smaller the anchor spacing is,the overlap of the effective support area between the rods increases,and the fluctuation of the support effect within 2 m spacing is small.Anchor length in a certain range can effectively improve slope stability.But after exceeding a certain length,the slope stability is not further improved.The support effect is proportional to the angle when the anchor inclination is less than 30°.The stability decreases at 40°,indicating that there is an optimal anchoring angle.
high slopeanchor supportconfiguration formanchor angle
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