22nd China International Trenchless Technology Conference (22nd CSTT annual event), which is supported by China Society for Trenchless Technology(CSTT) , International Society for Trenchless Technology (ISTT), American Society of Civil Engineers (ASCE) - Pipeline Division, Center for Underground Infrastructure Research and Education (CUIRE), and supported by China Association for Engineering Construction Standardization, China Municipal Engineering Association- Pipeline Inspection and Rehabilitation Committee, Zhengzhou University, China University of Geosciences (Wuhan),China University of Geosciences (Beijing), Chengdu University of Technology, Tongji University, College of Civil Engineer, Jilin University, College of Construction Engineering and so on, is going to be held at Zhengzhou International Convention and Exhibition Centre (ZZICEC) during 11st-13th April, 2018.