A New Bearing Capacity Calculation Model and Validation of Circular Shallow Foundation
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摘要: 通过假定地基发生整体剪切破坏,给出滑动破坏面,考虑地基土的塑性平衡区随着基础埋置深度的不同而扩展到最大可能的程度,并目计及基础两侧土的抗剪强度对承载力的影响,采用极限平衡法,理论上推导出了圆形浅基础承载力。结合工程实例,并利用有限元程序(ADINA)进行数值模拟,进一步验证了浅基础破坏模式的正确性,以及理论推导的可靠性。Abstract: This article assumes that the overall foundation shear damage happened, the sliding surtace damage is given, the greatest possible expansion extent of the soil plasticity balance area with the variety of foundation embedment is considered, and both sides of the foundation soil shear strength are taken into account. Circular shallow foundation bearing capacity is theoretically derived with Limit equilibrium method. Using practical engineering examples and numerical simulation with finite element program (ADINA), the correctness of shallow foundation damage model and theoretical derivation are further validated.
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Key words:
- limit equilibrium /
- circular shallow foundation /
- bearing capacity /
- finite element
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