Due to the special local geological

geomorphological and climatic conditions along NieYou Section of Sino-Nepal highway

the natural hazards

posing potential threats to the highway

mainly including landslide

rock avalanche

debris flow and snowslide

are extremely severe

which are characterized with clusters

high frequency and periodicity and usually form disaster chains.According to the field survey along Nie You Section of Sino-Nepal highway

as well as the features and damages of representative disaster events

a series of control measures have been taken

such as cut-and-cover tunnel and retaining wall for controlling Kang Shan Qiao snowslide

rope bridge for keeping away from Zhang Zang Bu debris flow and 707# landslide

changing locations of the circuitry and also using cut-and-cover tunnel to control Zha Mu La landslide for ensuring smooth running of the road.These measures will be also of great significance to the disposals of geological hazards in other regions of Tibet.