With the rapid development of the national economy, the rapid growth of the volume oftraffic, the vehicle showing a large, heavy, coupled by the environment, climate conditions,structural design limit, the highway in the operating process all kinds of diseases, reducing thequality of road use andlife, seriously affected the normal road operators, trunk roads in recentyears, large and medium-sized heavy repair task, but because of the large and medium-sizedpatch of asphalt pavement a strong structural layer design, often by virtue of experience, thelack of a scientific basis for some of the pavement design is too conservative, resulting inmorematerial and waste of money, and some of the pavement design is the opposite, andcause premature failure, also caused great economic losses due to unreasonable or thicknessof the pavement structure design small.Problems Disease Investigation through representative paragraph16Baoji Route4highway asphalt pavement analysis summarizes the typical disease type, from design,construction, materials, transportation,, axle load characteristics analysisthe disease causesand influencing factors, measures of prevention and disposal of asphalt Pavement request forthe formulation of the overhaul design. Backtrack through theoretical analysis, researchmilling around the table after the original pavement deflection and milling equivalentmodulus variation, to provide a basis for the formulation of the the pavement large andmedium-sized repair design program. Combined with the characteristics of the surveysections of typical disease recommended the typical diseases reasonable Treatment methodsand pavement overhaul program of the perfect pavement overhaul technology to improve thelevel of the Baoji ground trunk roads large and medium repair has a very important practicalsignificance. |