The Influence Of Over-loaded Vehicles On Performance Of Bituminous Highway

With the fact that the national economy fleetness develops the step-by-step rise with highway grade, has also drive development of highway carrying trade, the heavy type automobile running on the highway is more and more many , the automobile overloads that the phenomenon is also more and more grave , this will to the life time now having the highway road surface may produce an adverse effect. Especially the vehicle over-load, is harmful for vehicle self's the safety, moreover road surface that can bear vehicle load face to face running to produce unexpected destroying not only. Cause the highway road surface to appear untimely to lathe a track gravely , possess the bag , pit slot , turning thick fluid over and being full of cracks and so on, reduce road bridge life time greatly. The earlier stage road surface that the besides , in recent years advanced level highway builds in large amount designs job middle.The project has studied the axis is loaded with a fair amount of confidence by actual admeasurement , has analysed the result that bituminous pavement Mechanics calculates after the automobile overloads , has taken this as evidence, have calculated an impact of transfinite over-load over bituminous pavement structure usage function, correct road surface life time effect, testifying transfinite over-load is that the main cause that the current bituminous pavement damages, should control according to law strictly. Take this as premise, on keeping the road surface design procedures currently in effect basis, revising suggesting that to design procedures currently in effect after considering over-loaded suggests.