Calculation method of urban embankment protection range based on stress diffusion method

With the increasing number of high-fill embankments, multi-level platform embankments, and embankment reinforcement projects, the stress diffusion effect of embankment loads may pose a serious threat to surrounding buildings. In traditional design schemes, due to insufficient consideration of the stress diffusion effect of embankment loads, the additional stress in the top area of the embankment is often overestimated, while the horizontal diffusion effect is underestimated, resulting in insufficient evaluation of the potential threat of embankment loads to surrounding buildings in the design. The law of one high and one low in the diffusion of embankment loads has brought great difficulties to engineering design and analysis judgment, and also provided new ideas for optimizing design schemes. Based on the stress diffusion angle method, this article divides the embankment load into slope area load and embankment top area load, quantifies the influence of stress diffusion effect on the distribution range and magnitude of base pressure, and provides a new tool for enhancing safety in embankment design. By comparison, this method can more accurately reflect the actual distribution of base pressure compared to traditional methods. After analysis, its diffusion degree is related to the geometric dimensions of the embankment section. In addition, the uneven settlement in the diffusion area outside the embankment based on engineering measurement data was quantified. The results show that the diffusion effect poses a potential threat to the stability of surrounding residential buildings, which may cause structural safety issues such as tilting and cracks. In view of this, setting up settlement observation points at important locations around large-scale projects to monitor in real time and take timely preventive measures is suggested.