Abstract
Study on the weathering characteristics of Niche of Sakyamuni Entering Nirvana at Dazu Rock Carvings is the first step of scientific conservation. Based on the in-depth investigation on the weathering characteristics of Niche of Sakyamuni Entering Nirvana, the weathering degree was measured and evaluated by means of the in-situ non-destructive surface hardness test and ultrasonic test. The results reveal that the weathering types of Niche of Sakyamuni Entering Nirvana consist of granular disintegration, salt efflorescence, scaling, blistering, cracking, missing parts, biological colonization, and water seepage. The weathering degree of the head and foot of the statues are higher than that of the chest and abdomen in the horizontal direction, and the weathering degree of the upper parts of the statues and the ground area are higher than that between them in the vertical direction. The results of surface hardness and ultrasonic velocity are in close accordance with the weathering degree of the statues. Sedimentary and structural characteristics of sandstone lay a material foundation for various weathering characteristics and degree. The research results pave the way for condition assessment, intervention decision-making, and preventative conservation of the studied statues.
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References
André MF, Etienne S, Mercier D, Vautier F, Voldoire O (2008) Assessment of sandstone deterioration at Ta Keo temple (Angkor): first results and future prospects. Environ Geol 56(3–4):677–688. https://doi.org/10.1007/s00254-008-1408-8
André MF, Voldoire O, Roussel E, Vautier F, Phalip B, Peou H (2012) Contrasting weathering and climate regimes in forested and cleared sandstone temples of the Angkor region. Earth Surf Process Landf 37(5):519–532. https://doi.org/10.1002/esp.2265
Aoki H, Matsukura Y (2007) A new technique for non-destructive field measurement of rock-surface strength: an application of the Equotip hardness tester to weathering studies. Earth Surf Process Landf 32(12):1759–1769. https://doi.org/10.1002/esp.1492
Casula G, Fais S, Ligas P (2009) An experimental application of a 3D terrestrial laser scanner and acoustic techniques in assessing the quality of the stones used in monumental structures. Int J Microstruct Mater Prop 4(1):45–56. https://doi.org/10.1504/IJMMP.2009.028432
Coombes MA, Feal-Pérez A, Naylor LA, Wilhelm K (2013) A non-destructive tool for detecting changes in the hardness of engineering materials: application of the Equotip durometer in the coastal zone. Eng Geol 167(18):14–19. https://doi.org/10.1016/j.enggeo.2013.10.003
Cuccuru F, Fais S, Ligas P (2014) Dynamic elastic characterization of carbonate rocks used as building materials in the historical city centre of Cagliari (Italy). Q J Eng Geol Hydrogeol 47(3):259–266. https://doi.org/10.1144/qjegh2013-061
Fais S, Casula G (2010) Application of acoustic techniques in the evaluation of heterogeneous building materials. NDT & E Int 43(2):62–69. https://doi.org/10.1016/j.ndteint.2009.10.004
Fais S, Cuccuru F, Ligas P, Casula G, Bianchi MG (2017) Integrated ultrasonic, laser scanning and petrographical characterisation of carbonate building materials on an architectural structure of a historic building. Bull Eng Geol Environ 76:71–84. https://doi.org/10.1007/s10064-015-0815-9
Gao F, Zhou X, Zhou H, Li MY, Tong H, Liu SJ (2016) Characterization and analysis of sandstone substrate, mortar layers, gold foils, and paintings of the Avalokitesvara Statues in Dazu County (China). J Cult Herit 21:881–888. https://doi.org/10.1016/j.culher.2016.03.009
Hatır ME, Korkanç M, Başar ME (2018) Evaluating the deterioration effects of building stones using NDT: the Küçükköy Church, Cappadocia Region, central Turkey. Bull Eng Geol Environ 1:1–14. https://doi.org/10.1007/s10064-018-1339-x
Ilieş M, Irimuş IA, Rus M (2015) Weathering processes and their effects on stone-built cultural heritage. Case study: “Saint Archangels” Church, Deag Village. Studia UBB Geographia 60(1):63–69
İnce İ, Bozdağ A, Tosunlar MB, Hatır ME, Korkanç M (2018) Determination of deterioration of the main facade of the Ferit Paşa Cistern by non-destructive techniques (Konya, Turkey). Environ Earth Sci 77(11):420. https://doi.org/10.1007/s12665-018-7595-z
Jiří W, Tomáš Č, Klára K, Šmidtová M (2016) The effect of degradation processes on the serviceability of building materials of historic buildings. Civil Eng J 3:1–10. https://doi.org/10.14311/CEJ.2016.03.0011
Kahraman S, Ulker U, Delibalta MS (2007) A quality classification of building stones from P-wave velocity and its application to stone cutting with gang saws. J South Afr Inst Min Metall 107(7):427–430
Korkanç M, İnce İ, Hatır ME, Tosunlar MB (2018) Historical granaries at Taskale (Turkey) under risk: a geotechnical analysis. Mediterr Archaeol Archaeom 18(1):149–162. https://doi.org/10.5281/zenodo.1161353
Li HS (2014) Character and evaluation method of historical rock deterioration. Cultural Relic Press, Beijing (in Chinese)
Li ZY, Zhang XG, Li HS (1995) A study on the weathering disease of stone cultural relics in Zhongxian, Sichuan. Earth Sci J China Univ Geosci 20(4):378–382 (in Chinese)
Liu CY, He MC (2008) Method of determining weathering depth of rock ancient building. J Earth Sci Environ 30(1):69–73 (in Chinese)
McCabe S, Smith BJ, Mcalister JJ, Gomez-Heras M, Mcallister D, Warke PA et al (2013) Changing climate, changing process: implications for salt transportation and weathering within building sandstones in the UK. Environ Earth Sci 69(4):1225–1235. https://doi.org/10.1007/s12665-013-2278-2
Mol L, Preston PR (2010) The writing’s in the wall: a review of new preliminary applications of electrical resistivity tomography within archaeology. Archaeometry 52(6):1079–1095. https://doi.org/10.1111/j.1475-4754.2010.00516.x
Sabbioni C, Zappia G (1992) Decay of sandstone in urban areas correlated with atmospheric aerosol. Water Air Soil Pollut 63(3–4):305–316. https://doi.org/10.1007/BF00475497
Shao MS, Zhang ZJ, Li L (2015) Properties and deterrioration mechanism of sandstone blocks in Chengde royal buildings between 1703 and 1792. J Eng Geol 23(3):533–538 (in Chinese)
Siedel H (2010) Historic building stones and flooding: changes of physical properties due to water saturation. J Perform Constr Facil 24(5):452–461. https://doi.org/10.1061/(ASCE)CF.1943-5509.0000066
Siedel H, Pfefferkorn S, von Plehwe-Leisen E, Leisen H (2010) Sandstone weathering in tropical climate: results of low-destructive investigations at the temple of Angkor Wat, Cambodia. Eng Geol 115(3–4):182–192. https://doi.org/10.1016/j.enggeo.2009.07.003
Siedel H, Siegesmund S, Sterflinger K (2011) Characterisation of stone deterioration on buildings. In: Siegesmund S, Snethlage R (eds) Stone in architecture. Springer, Berlin, Heidelberg, pp 347–410. https://doi.org/10.1007/978-3-642-14475-2_6
Wang JH (1999) Seepage treatment of the sleeping Buddha in Chongqing. Sci Conserv Archaeol 11(1):36–39 (in Chinese)
Wang S (2010) The characteristic of surface deterioration and mechanism study on West Yellow Temple stone heritage. China University of Geoscience, Beijing (in Chinese)
Wang DY, Zhang ZX, Fu LS, Yao JS (1992) Seepage water’s erosion of the rock cut Sleeping Buddha in Baodingshan, Dazu, Sichuan. Hydrogeol Eng Geol 19(3):25–28 (in Chinese)
Wang DY, Zhang ZX, Xie BL (1994) Reasons for the destruction of the Buddha in Baodingshan. Sichuan Archit 14(2):19–20 (in Chinese)
Wang GL, Wang DY, Zhang ZX (1999) Study on seepage model of rock mass in Baodingshan Grotto area of Dazu County. J Chongqing Jianzhu Univ 21(2):49–52 (in Chinese)
Wilhelm K, Viles H, Burke O, Mayaud J (2016) Surface hardness as a proxy for weathering behaviour of limestone heritage: a case study on dated headstones on the Isle of Portland, UK. Environ Earth Sci 75(10):1–16. https://doi.org/10.1007/s12665-016-5661-y
Zhang XX, Ren WZ, Wu XW, Liu HK, Fu GJ (2017) Microscopic and mechanical characteristics of rocks near Big Buddha Bay Rock Carvings in Dazu. J Wuhan Univ Sci Technol 40(4):314–320 (in Chinese)
Acknowledgements
This work was supported by Sichuan and Chongqing Grottoes protection demonstration project (Dazu Rock Carving Niche of Sakyamuni Entering Nirvana and Small Fowan statues conservation and restoration project) undertaken by the Chinese Academy of Cultural Heritage, as well as by the basic scientific research service fee of the Chinese Academy of Cultural Heritage (2016-JBKY-06). The authors would also like to thank Huili Chen, Tao Yang, Xingzhou Liang, Junjie Zhang, Yuantao Li, and Ziyi Wang for their kind assistance during the field work.
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Zhang, J., Huang, J., Liu, J. et al. Surface weathering characteristics and degree of Niche of Sakyamuni Entering Nirvana at Dazu Rock Carvings, China. Bull Eng Geol Environ 78, 3891–3899 (2019). https://doi.org/10.1007/s10064-018-1424-1
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DOI: https://doi.org/10.1007/s10064-018-1424-1