树根桩加固隧道软基的数值分析

Numerical Analysis of Root Pile in Reinforcement Tunnel Basis

针对树根桩加固隧道软基的试验,采用ABAQUS有限元软件进行数值模拟分析,得到加固前后的地基承载力p-s曲线,在加固前的数值模拟接近实测值,加固后的模拟值略大于实测值,数值模拟能较好的反映现场试验,同时为树根桩在隧道工程中的应用提供参考与理论指导.

For root pile of soft ground tunnel test, ABAQUS finite element software was used for nu- merical simulation analysis to get the foundation bearing capacity p-s curves of reinforcement before and after reinfocement. The numerical simulation before reinforcement is close to the measured val- ues, the numerical simulation after reinforcement is slightly larger than the measured values. Numeri- cal simulation can reflect the field test greatly, provide a reference and theoretical guidance for the use of root pile in the tunnel engineering.