林颖孜
    （福建省建筑设计研究院  福州 350001）

[提要]  以福州银河大厦工程为实例，阐述了在复杂条件下高层建筑软土深坑支护结构的设计与实践，提出对这一类支护结构方案除按常规设计外，还需依据工程的特殊条件，对工程的薄弱环节进行评估、补充设计与监测，以确保工程安全可靠。
[关键词]  深坑支护  围护桩 钢管支撑 有限元分析 弹性支承 高压旋喷

Taking Fuzhou Yinhe Mansion as an example, the design and practice of deep braced excavation in soft soil for high buildings under complicated condition are elaborated. Except for macroscopic routine design, the week link of the project must be evaluated, and additional design and measurement must be done according to the special condition of the project to guarantee the softy and reliability of the project.
Keywords:  bracing structure; foundation pit; excavation pile; steel pipe support; finite element analysis; elastic-support; high pressure; jet grouting