Construction of residential and commercial buildings on the slope face is very commonly noted in the North-eastern and other mountainous terrains of India. Closely spaced buildings and the foundation elements located on such slope faces interact with each other, thereby influencing the stability of the slopes, which, in turn, affects the failure mechanism and bearing capacity estimation of such foundation systems. Several literatures are available highlighting the response of foundation located on the slope crest, while those elucidating the response of foundation located directly on the slope face are scanty. Among them, there are extremely few literatures available showcasing the interaction of footings located on slope face. Hence, considering the practical importance of the issue, this paper reports a numerical two-dimensional finite element-based study that is conducted to determine the failure mechanism and bearing capacity of interfering strip footings located on the face of a slope. The study aptly demonstrates that the response of interfering footings is governed by the soil type, footing width, slope inclination, and the relative elevation between the footings. It is observed that upon increasing the footing width by two times, the bearing capacity of interfering footing increases by 33%, even though the interfering mechanism remains the same. It was also noted that with each successive increase in the slope inclination by 5°, the interfering bearing capacity gets reduced by 37 %. Under any parametric circumstances, maximum interference between the strip footings is noted when their relative height of separation (in terms of footing width) remains close to 2, while the interference is found to be completely disappearing when the relative height of separation is 8 or more. This finding should aid in the decision making about the proper choice of inclusion of interference effect during the analysis and design of foundations on slope face.

在印度的东北部和其他山区，通常在坡面上建造住宅和商业建筑。间隔较近的建筑物和位于此类斜坡面上的地基元素会相互影响，从而影响斜坡的稳定性，进而影响此类地基系统的破坏机理和承载力估算。有几篇文献着重介绍了位于斜坡顶上的地基的响应，而阐明直接位于斜坡上的地基的响应的文献很少。在这些文献中，很少有文献显示斜坡表面的地基相互作用。因此，考虑到该问题的实际重要性，本文报告了基于数值二维有限元的研究，该研究旨在确定位于斜坡面上的条形基础的破坏机理和承载力。该研究恰当地表明，干扰基础的响应受土壤类型，基础宽度，坡度和基础之间的相对高程的控制。可以看到，在增加了两倍的基础宽度之后，即使基础机制相同，干扰基础的承载能力也会增加33％。还应注意的是，随着倾斜度每次连续增加5°，干扰承载力将降低37％。在任何参数情况下，当带状基础之间的相对分离高度（根据基础宽度）保持接近2时，会注意到最大的干扰，而当分离的相对高度为8或更大时，发现干扰完全消失。这一发现应该在分析过程中大约包含的干扰作用的恰当选择的决策帮助与设计坡面基础。