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An accessible calculation method of the bearing capacity of shallow foundations on anisotropic rock masses
Computers and Geotechnics ( IF 5.3 ) Pub Date : 2020-12-22 , DOI: 10.1016/j.compgeo.2020.103939
R.A. Galindo , M.A. Millán

Numerical modeling of the bearing capacity of foundations on rock masses having a high degree of anisotropy needs to represent, in most cases, a large number of discontinuities, thus making the numerical analysis difficult and, in most cases, unapproachable.

In this research, a simplified numerical procedure by using the Discontinuity Layout Optimization method (DLO) which proves to be appropriate when studying the limit bearing capacity of foundations involving slip line formation and failure wedges is presented.

A single discontinuity simplified procedure is proposed maintaining the accuracy of the full model. The isolated discontinuity is located in the proper position and has the correct slope to represent the whole family of discontinuities.

DLO models using the proposed procedure can represent the different possible failure mechanisms that may occur in the rock mass. Besides, the ultimate bearing capacity of a particular case is checked against the available analytical solution.



中文翻译:

各向异性岩体上浅层地基承载力的一种简便计算方法

具有高各向异性的岩体上的地基承载力的数值模型在大多数情况下需要表示大量的不连续性,因此使数值分析变得困难,并且在大多数情况下无法进行。

在这项研究中,提出了一种使用不连续性布局优化方法(DLO)的简化数值程序,该方法被证明适用于研究涉及滑移线形成和破坏楔形的地基极限承载力。

提出了一个不连续的简化程序来维持整个模型的准确性。孤立的不连续点位于正确的位置,并且具有正确的坡度以代表整个不连续点族。

使用提出的程序的DLO模型可以代表可能发生在岩体中的不同可能的破坏机制。此外,还会根据可用的分析解决方案来检查特定案例的极限承载力。

更新日期:2020-12-22
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