Change your cover photoUpload Change your cover photoUpload Change your cover photo Chenghan Zhang This user account status is Approved followers0 following1 Follow About About Posts Posts Comments Comments This user has not added any information to their profile yet.Company / Institutionuniversity of science and technology BeijingMajor Projects / Publicationsgeomechanics CountryChinaRegistration DateJoined 15.11.2020User LocationBeijing, China Only fill in if you are not human