Stability Study of Low Bond Stone Masonry Walls: A Case Study of the Royal City Platform Wall at the Shimao Site

Low bond stone masonry walls overturning damage mode Royal City platform wall sliding damage mode stability
["Qin, Like","Zhou, Ruixin","Kong, Deyi","Wang, Lei","Wei, Kun","Hu, Mengling"] 2025-03-02 期刊论文
Masonry walls represent a significant architectural heritage that continues to be prevalent in various regions. Ancient masonry walls are typically constructed using mortar composed of soil and water and are characterised by low adhesion. Presently, research on the factors affecting the stability of low-bond stone masonry walls is still in the preliminary stage and lacks a unified understanding. This study investigates the factors influencing the stability of low-bond stone masonry walls, focusing on the Royal City platform wall at Shimao Site in China. A scaled-down model was constructed based on the actual conditions of the Royal City platform wall, and Schneebeli rods were loaded into the experimental model. This study examines the effects of height-to-width ratio, retaining wall inclination angle, masonry method, and mortar joint strength on wall stability. The results indicate that as the height-to-width ratio and inclination angle of the retaining wall increase, its stability decreases, and the angle between the failure surface and the horizontal direction increases. While the masonry method has a relatively minor influence on wall stability, variations in the mortar joint strength significantly impact the stability of the retaining wall. Based on the experimental results, which revealed two failure modes of overturning and sliding, a stability calculation method for low-bond stone masonry walls was derived using the limit equilibrium method. The proposed method was applied to analyse the Royal City platform wall. The findings provide valuable insights into the restoration and preservation of low-bond stone masonry walls.
来源平台:INTERNATIONAL JOURNAL OF ARCHITECTURAL HERITAGE