门架式围护结构优化设计
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摘要
门架式围护结构是一种新型的支挡结构。这种结构刚度较大,可以有效地限制支挡结构的变形,具有桩顶位移小、抵抗力大的特点。提出了门架式围护结构计算模型,模型中将桩受到的地基土抗力简化为弹性支撑;并对双排SMW桩门架式围护的桩间距进行了优化分析,兼顾安全经济原则,得出较为合理的设计方案。
As a new bracing structure,the portal piles have some advantages such as larger rigidity,which can restrict piles' deformation.A calculation model is proposed,simplifying the resistance forces from the soils for the piles into an elastic bearing.For the sake of safety and economy,the distance between SMW piles is optimized and reasonable design proposal is obtained.
引文
[1]周翠英,刘祚秋,尚伟,等.门架式双排抗滑桩设计计算新模式[J].岩石力学,2005,26(3):441-449
    [2]龚晓南,高有潮.深基坑工程设计施工手册[M].北京:中国建筑工业出版社,1998:438-450
    [3]王湛,刘冰花.双排桩计算方法探讨[J].东北地震研究,2001,17(2):64-68

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