高印立
    （中国建筑科学研究院地基所 北京 100013）

[提要]  支护结构圈梁的空间效应对支护桩的变形和内力有着重要影响。根据圈梁对支护桩的约束和变形协调，给出一种考虑圈梁协同作用的支护桩的简化计算方法，并结合实测资料进行了对比分析。
[关键词]  支护桩  圈梁 空间效应 弹性地基梁

It is proved that the spatial effect of ring beam has significant influence on the deformation and stresses of retaining piles. Based on the deformation coordination of ring beam and piles, a simplified method considering the spatial effect of ring beam is presented to analyse retaining piles. The calculation results are also comparied with the measured ones.
Keywords: retaining pile; ring beam; spatial  effect. beam; elastic  foundation