With the ongoing development of urban areas, excavation plays a vital role in building construction, requiring careful consideration of safety from a geotechnical standpoint. Tie-backed walls serve as a cost-effective solution for supporting excavations. This study focuses on the geotechnical engineering and stability analysis of tie-backed urban deep excavations. Previous research primarily utilized deterministic methods, overlooking soil strength\\\'s inherent uncertainties. In contrast, this study employs probabilistic analysis to account for uncertainties in cohesion and friction angle. The results underscore the significant impact of soil strength parameter variability on tie-backed urban excavations, emphasizing the necessity of incorporating uncertainty of cohesion and friction angle into design analysis.

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