Research on Prestressing Anchor in Claystone Foundation Pit and its Application

摘要

In this Paper, combining with the engineering examples, the mechanism of action for reinforcing the ultra-deep claystone foundation pit with the piled anchor supporting structure is analyzed and researched.With computer numerical simulation, the supporting effect of the borehole cast-in-place concrete pile together with the prestressing anchor is analyzed;analysis and contrast for and between the calculation result and the foundation pit monitoring data are conducted.The result reveals that,the numerical analysis result and the monitoring data fit fairly better, and the piled anchor supporting structure has fairly great application value in claystone foundation pit.