基于PLAXIS的某深基坑桩锚支护结构的数值分析

Numerical Analysis of Anchored Soldier Pile Supporting System Using PLAXIS

运用Plaxis有限元软件对某深基坑桩锚支护结构进行了开挖过程的模拟,并对围护桩水平位移及锚索内力的计算值与实测值进行比较分析。结果表明:支护结构的位移及内力都处于可控状态,桩锚支护结构用于宽大深基坑是可行的;围护桩水平位移计算值与实测值的变形曲线基本一致,锚索内力的变化趋势基本相同,通过Plaxis进行的基坑开挖模拟计算是可行的。

The performance of the anchored soldier pile supporting system in the deep excavation is numerically investigated by using a commercial software PLAXIS.The analyzed stress in the anchor as well as the horizontal deflection in the soldier pile wall are compared with the observed data.The result indicate that,both the stress in the ground anchor and the horizontal deflection in the soldier pile are acceptable.The anchored soldier pile system can be used in the large deep excavation project.The observed stress and the deflection are consistent with the analytical results.