Publicomos

Réf.

41688

Type

conference item

Titre

Distinctive setting and underground conservation zone of Yungang Grottoes, Datong, China

Langues

English

Auteurs

Fanxing, Meng

Date

2005

Pagination de section

1-11

Titre de conférence

15th ICOMOS General Assembly and International Symposium: ‘Monuments and sites in their setting - conserving cultural heritage in changing townscapes and landscapes’

Lieu de conférence

Xi'an, China

Date de conférence

17 – 21 oct 2005

Mots-clés

World Heritage List / grottoes / setting / protection / conservation measures / vibration measurements and instruments / consolidation / Buddhism / cave art / conservation of historic sites / World Heritage

Pays mentionnés

China

Monuments et sites

Yungang Grottoes, Datong City, China

N° Patrimoine mondial

1039

Résumé en anglais

World Cultural Heritage Datong Yungan Grottoes excavated from easily weathered rock layers since 5 century AD with quality coal bed underground is situated in an area of 57.4 square kilometers around Wuzhoushan. Under the northern geographical and climate conditions, coal mining has been the major way to bring local habitants economic benefits. 16 mining zones distributed surrounding the site had their tunnels gradually approaching to the underground support of the property. Managing organ has estimated the tremors caused by underground mining, quarrying, trains and motor vehicles by using single-direction tromometry, and confirmed that Large-scale collapse of the exhausted mining areas had become the most hazards on the site that possibly lead to destructive human-caused disasters.The author proposed and will introduce with this paper a technical protection measure as delimiting a hopper-shaped tridimensional security zone of 300-meter depth underground, so called security pillar, which goes top down along the boundary of key distribution area taking the natural rock collapse angle of 70°, while the bottom boundary extends with the downward expansion of the mining operation..
The technique has been proved efficient during 30 years of practice. It provided a security model for the conservation of heritage in similar situation.

Document joint

2-24.pdf

Licence

Creative Commons Attribution-Non Commercial-No Derivatives (BY-NC-ND)