Analysison the Influence of Half-Cover Excavation on Viscous Soil Layer
Taking the half-cover excavation of Hefei Rail Transit Science Road subway station as the research ob-ject,combined with engineering monitoring data and FLAC3D finite element software numerical simulation,the de-formation differences of soil layers and retaining piles caused by half-cover excavation on both sides of the clay layer are compared and analyzed,and the variation rule of the deflection of the cover plate is simulated by chan-ging the thickness of the cover plate and the distance between the middle columns.The results show that the max-imum deformation of the open-cut side is greater than that of the open-cut side,and the depth of the maximum de-formation of the open-cut side retaining pile is greater than that of the open-cut side.The thickness of the cover plate has little influence on its deflection and shows a linear change.When the distance between the middle col-umns is less than 5m,the influence on the deflection of the cover plate is not obvious.
half-cover excavation foundation pitbiased loadnumerical simulationsettlement deformation
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NSTL
万方数据
