Study on the Effect of Soil Nail Wall Support for Foundation Pit Slopes Considering the Effect of Groundwater
[Purposes]In order to verify the reasonableness of the foundation pit slope support scheme and ensure the construction safety,taking a foundation pit slope in Jinjiang as an example,the slope sup-port effect is studied and analyzed.[Methods]The three-dimensional grid model of the foundation pit slope and the groundwater level model were established,and the stability coefficient and displacement distribution of the foundation pit slope under the influence of groundwater were simulated by finite differ-ence method under the natural and rainstorm conditions when the foundation pit slope was unsupported and supported by soil nail wall.[Findings]The results show that the stability coefficients of the slope un-der natural and rainstorm conditions with soil nail wall support are 2.85 and 2.6 respectively,which are greatly improved compared with 2.35 and 1.51 in the unsupported condition,and the displacements are also significantly reduced.[Conclusions]The soil nail wall support obviously improved the overall stabil-ity of the slope,and changed the displacement distribution pattern of the foundation pit slope,reducing the risk of slope collapse.This study has certain reference value for similar foundation pit slope stability analysis and support scheme design and verification.
foundation pit slopefinite difference methodgroundwater levelpit bottom upliftslope dis-placement
万方数据
维普
