Research on the relative weathering and spalling depth of rocks on the Gate of Lixian of ancient City Wall at Quzhou

Rocks and stone relics in the Ancient City of Ping Yao exhibit varying degrees of weathering due to differences in mineral composition and structural properties, leading to surface spalling that poses irreversible damage risks. Research on the Gate of Lixian of the ancient city wall quantified weathering and spalling depths using advanced techniques such as three-dimensional laser scanning (Leica Scanstation 2) and plasticine squeeze-film methods. Findings indicate significant variability in weathering resistance among different rock types, including sandstone, siltstone, rhyolite, and slabstone, with measurements also extended to other heritage sites like Yungang Grottoes and the Confucian Temple of Quzhou. This study underscores the importance of quantifying weathering processes for long-term preservation strategies, building on prior assessments conducted in 2008 and subsequent years.

(Ed.). (2015). Research on the relative weathering and spalling depth of rocks on the Gate of Lixian of ancient City Wall at Quzhou. Ancient Underground Opening and Preservation, 227–232. https://doi.org/10.1201/b19169-34