Research On Construction Schemes For The Highway Bridge Of Mountain Areas Where There Are High Water Head And Large Discharge

The economical of investment and the convenience of construction were the primaryconsiderations in highway construction before. Route selections usually selected the plan ofthe flat terrain and location, less tunnels and less bridges. Guided by this ideology, highwayswere often built in cultivated land and urban areas with dense population. Engineeringconstruction tied up a great deal of cultivated land and cause many disadvantage influences tolocal residents.But with the enhancement of economic strength of society and improvement onconstruction workmanship, the idea of highway construction also has changed greatly. Nowthe main factors on highway construction are less cultivated land, less demolition, lessinterference to local and driving safety and comfortable. The roads are most walking acrossthe mountains where the terrain is high drop height. For this reason it must be high proportionof bridges and tunnels, the construction organization difficulties and high construction plan.Based on Wujiang Bridge T2contract section Guangzhou-Lechang highway, This paperstudies the construction plan of the highway bridge of mountain area where the terrain is highdrop height, large discharge and large flow velocities during the flood season.Wujiang river is in the north mountainous area of Guangdong Province. Because it’s nocovering on the riverbed, so construction of auxiliary bridge and main piers pile in the waterare much more difficult. But for the common form, construction of the supporting structure iseasy.Main Superstructure of Wujiang Bridge is the (62+100+62)m three-span prestressedconcrete continuous box girder bridge. The construction with guyed travelers are certaintechnical difficulties.Through expatiation on construction plan and design calculation of Wujiang steel auxiliarybridge, construction plan of main piers pile in the water, construction plan and designcalculation of guyed traveler and construction plan of closure Segments, this thesis mainlyresearch the key technical scheme of the highway bridge of mountain area.This research can be reference for the same bridge construction. It can also be an importantfoundation for further studies.