Analysis of Highway Flood Damage of "23·7"in Beijing and Research on Prevention and Control Measures
Being an important transportation infrastructure,highway has been widely used in human social activities and borne the responsibility of public transportation and material circulation.However,due to the frequent occur-rence of extreme weather caused by global warming,especially the highway flood caused by rainstorm in flood sea-son,high flood damage has become an important factor restricting social operation and economic development.Through the investigation of hydrology,meteorology and geology in the western mountain area of Beijing,three im-portant causes of the highway flood damage of "23·7"are found,which are low flood fortification standard,high rainfall intensity and concentrated geological disaster source.According to the different locations of flood damage and the flood damage structures,the highway flood damage can be divided into five types of subgrade and protective structure flood damage,road surface flood damage,drainage facilities flood damage,bridge flood damage and traf-fic safety facilities flood damage.In this paper,the causes of flood damage of related structures are analyzed.In ad-dition,the comprehensive prevention and control measures are put forward to improve the road network planning,optimize the route direction,advance the design scheme,prefer the road construction materials,and enhance the level of highway maintenance and management.
the "23·7"catastrophic flood in the Haihe River BasinBeijingmountain highwayflood damageprevention and control measures
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