Research on Ultrasonic Detection Stone Sculptures of Qian Mausoleum-Tang dynasty

Abstract eng:
Qian mausoleum is the only tomb that a couple buried together, who both were emperors of Tang dynasty, the only empress in Chinese history, Wu Zetian and her husband Gaozong, Li Zhi. The mausoleum has a history of more than 1300 years. Around the mausoleum there are four gates, just traces of gates being left now, respectively eastern, southern, western and northern gates. On both side of roads outside four gates, totally more than 120 large-scale stone sculptures are distributed, which occupies an important position in the Chinese art history due to their art aesthetic characteristics. Of them, 108 sculptures are still standing on both side of the road outside the southern gate even now. They are all exposed in the open air. All the sculptures are of limestone. This paper takes the Wuzibei (Tablet without any words) for Wu Zetian with the regular shape of cube and a stone-man figure with irregular shape as examples in order to introduce the ultrasonic detection technology, the nondestructive method, to make an investigation inside the stone sculptures. The detections were done with the method of gridding for the tablets with regular shape, and the method of Ultrasonic CT(Computed Tomography) for that with irregular shape. The results of the detection give the positions and the trend of the cracks inside sculptures, which are the basis for evaluation of the conservation state and preventive preservation.

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