BACKGROUND
According to the data analysis of a 20years long monitoring work, the Locality 1Archaeological Site of Zhoukoudian has been threatened by severe hazards as wind and rain erosions, weathering, crumbling and instability, etc. After the severe rain storm on 21st July 2012， water catchment was discovered at the bottom and the west section of the cave and soon disappeared. Through geophysical prospecting, large fissures and fracture zones were found at the bottom of the cave, which endangered the overall stability of the site.
.jpg?1594270918 "The Protective Shelter of Locality 1 Archaeological Site of Zhoukoudian Peking Man Cave / THAD")
