Research of Over Load and Over High Temperature's Impact on the Total Thickness Track Test LI Shen hui 1,LIAO Wei dong 2,LI Xiang dong 1,LI Na 1 WU Rui lin 1 (1.School of Civil Engineering and Mechanics,Huazhong University of Science &Technology,Wuhan 430074,China; 2.Hubei Heavy Repairing Headquarters of Wuhuang Expressway,Wuhan 430074,China)The paper introduced the total thickness track test and analyzed over load and over high temperature's impact on dynamic stability in track test.Some reasonable suggestion has been put forward in the end.track test;over load; over high temperature; dynamic stability