In recent years, he has been responsible for and participated in more than one scientific research project 10. Sponsors include the Federal Highway Administration (FHWA) and the National Cooperative Highway Research Program (NCHRP). Texas Department of Transportation (TXDOT), Southwest University Transportation Center (SWUTC), etc. The research content covers the properties of asphalt mixture, asphalt pavement design, flexible base design, three-dimensional contact pressure between tire and pavement, prevention and treatment of reflective cracks on asphalt overlay, treatment of expansive soil subgrade, prevention and treatment of cracks on expansive soil subgrade pavement, and design of retaining wall on expansive soil subgrade. In recent years, more than 20 English papers have been published in top English magazines in the international civil field, all of which have been included in SCI or EI or both. One of the papers won the Best Paper Award in Soil Mechanics of Transportation Research Committee (TRB) in 2009.