Abstract
Loose deposit is widely distributed along the south route of Sichuan-Tibet highway (in Tibet). Slope disasters often occur because of the broken loose deposit and the low grade highway without complete safeguards for the slope. The paper proposed the integrated treatment technology with micro steel pipe piles and soil nailing frame beam and its work theory and structure design. The slope stability was simulated numerically with Midas-GTS on typical sections to verify the effectiveness of the technology. During simulation, the stable coefficient of slope with or without the integrated treatment technology was calculated. Results showed that the technology with micro steel pipe piles and soil nailing frame beam can improve the stability of loose deposit cutting slopes greatly.
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