抛支撑支点承载力和刚度特性的研究及应用

抛支撑支点承载力和刚度特性的研究及应用 English Version

详细信息

(Shanghai Geotechnical Investigations & Design Institute Co., Ltd., Shanghai 200070, China)

摘要: 总结了上海地区常用的抛支撑支点的型式。通过对抛支撑支点传力路径、承载力及变形模式的分析，探讨了支点与周围土体共同作用的机理。基于支点为“刚体”的假定，提出了计算支点水平承载力和刚度的简化计算方法。介绍了采用此方法设计的某抛支撑工程案例。工程实践表明，采用建议的方法进行设计是基本可行的。
- 基坑 /
- 抛支撑 /
- 支点 /
- 承载力 /
- 刚度 /
- 简化计算方法
Abstract: The common styles of supporting point of slop strut used in Shanghai are introduced. Based on the analysis of its force transfer path, bearing capacity and deformation mode, the mechanism of interaction between soil and supporting point is discussed. A simplified method for calculating the horizontal bearing capacity and stiffness of supporting point of slop strut is proposed based on the assumption of rigid supporting point. A case is employed to validate the above method. The engineering practices prove the reasonableness of the proposed method.
- excavation /
- slop strut /
- supporting point /
- bearing capacity /
- stiffness /
- simplified calculation method

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