Original ResearchPublished 2 October 2026Stability analysis of surrounding rock during excavation unloading-reloading based on the Hoek-Brown criterionXu-Hai Feng · Zeng-Lun Guan · Hou-Wei Sun · Zhi-Qiang Liu · Hai-Yang Huang · Pin-Qiang MoFrontiers in Materialsdoi 10.3389/fmats.2026.1927109