Investigation and cause of hidden geologial disaster area at Qinghai-Tibet Project Corridor(Kunlun Mountain Pass-Qingshui

Through field investigations,we found that the hidden geological disasters area along Qinghai-Tibet Project Corridor include shifting subgrade,punctured subgrade by ice pings,exposed railway piers;railway embankment piping,foundation cracks barsting and runddy,roads,pipeline deformation,sand deposition at railway slopes;abd exposed pipeline.Through the comprehensive analysis,we hsld the basic causes of the geological disasters risks are active structure and poor hydrogeology conditions.