Research on the Effect of Soil Nail Wall Support for Pit Slopes
[Purposes]Since it is easy to cause damage during the excavation of foundation pit slope,to support the foundation pit slope is of great importance to ensure the safe construction of the project.Therefore,it is necessary to study the effect of soil nailing wall support on slope stability.[Methods]Tak-ing a foundation pit project in Fuzhou as the research object,this paper constructed a three-dimensional grid model of the slope of the foundation pit,and used the finite difference method to calculate the stabil-ity and displacement of the slope without soil nail support and with soil nail support.[Findings]The sta-bility coefficients of the slope under natural condition and rainstorm condition were 0.85 and 0.73,and the maximum slope displacements were 112.5 mm and 125.8 mm,respectively,without soil nail wall sup-port;the stability coefficients of the slope under soil nail wall support were 1.31 and 1.24,and the maxi-mum displacements were 27.8 mm and 28.0 mm,respectively.[Conclusions]Soil nail wall support sig-nificantly reduces the slope displacement and improves the overall stability of the slope.
foundation pit slopesoil nail wall supportslope stabilityslope displacement
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