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THE APPLIED RESEARCH OF THE BEARING CAPACITY OF FOUNDATION OF THE THREE STRENGTH CRITERION

机译：三种强度准则的地基承载力的应用研究

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摘要

To research the difference of three strength criterion,the unified equation of the Mohr-Coulomb、SMP、LadeDuncan was derived based on the plane strength theory.The difference of plastic interface and the laws of internal friction angle,stick and over consolidation ratio to the plastic load and the critical load were also researched.By compared the results,the plastic load when considering k0 was very small,but the critical load was very big.The results of plastic and critical load by using the M-C failure criterion were similar with the results by using SMP failure criterion which considered the impact of the K0 and intermediate principal stress only if the internal friction angle was small.Similarly,The results of the plastic load by considering the over consolidation ratio or not were almost consistent,but the OCR had a greater influence of the critical load.The method by deriving from this paper is practical for plane strain condition such as retaining wall,slope and other similar engineering.
机译：为了研究三种强度判据的差异，基于平面强度理论推导了Mohr-Coulomb，SMP，LadeDuncan的统一方程。塑性界面的差异以及内摩擦角，粘滞和超固结比的规律。通过比较结果，考虑k0时的塑性载荷很小，但是临界载荷很大。使用MC破坏准则的塑性和临界载荷结果与试验结果相似。使用SMP破坏准则得出的结果仅在内部摩擦角较小时才考虑K0和中间主应力的影响。类似地，考虑到是否存在超固结比，塑性载荷的结果几乎是一致的，但是OCR却是本文推导的方法适用于平面应变条件，如挡土墙，边坡及其他类似工程。鼓舞人心。

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