Analysis And Counter-measures Of Expressway Abutment Jump

Abutment jump is generated by road and bridge uneven settlement, it wouldhappen wheel vibration when vehicle passed by. It not only influenced ride comfort,reduced road service level, but also added fuel consumption, aggravate pavementsurface distress, serious abutment even can led to accidents.This paper mainly aiming at analysis the cause of abutment jump, Through theinvestigation that vehicle speed change before the bridge research it influence totraffic flow, analysis and summary the influence to the driver through driver heart ratechanges,and the influence to the traffic safety explored the harm of abutment jump.Analysis ice snow condition influence to the abutment, analysis the causes ofAbutment jump in our country, put forward the principle to handle Abutment jump,and according to different degree of Abutment jump put forward different engineeringimprovement measures. And through subgrade and pavement two aspects researchedengineering treatment scheme aimed at abutment jump phenomenon, introduce theengineering treatment method to the Abutment jump in our country now.This paper put forward the safety countermeasures system to the sections whichhappen Abutment jump, and puts forward the improvement measures of safetymanagement. For instance, set the warning signs, road speed hump, prevention andcontrol of the Abutment jump phenomenon positively, to ensure the safety of the roadtraffic.