Academic research projects undertaken by Zheng Junjie in recent five years

Subject Name Subject Category Source Year Participated in Identification Study on Interaction Mechanism of Loose and Bonded Variable Stiffness Composite Reinforced Cushion-Pile-Soil-Embankment 20 13-20 16, Project Leader of National Natural Science Foundation, is studying the interaction mechanism and design theory of bi-directional reinforced composite foundation. On October 20, 200912, the project leader of the National Natural Science Foundation completed the research on the interaction mechanism and design theory of multi-element composite foundation. The person in charge completed the research on the integration technology of design and construction of shallow-buried tunnel (Pingshan tunnel) with weak swelling surrounding rock. The person in charge of Nanjing Traffic Science and Technology Project Nanjing Traffic Bureau 20 13-20 14 is studying the working mechanism of a new type of three-dimensional grid in CFG pile-net structure to strengthen foundation. The person in charge of the 20 13-20 14 science and technology development project of the Railway Bureau of the Fourth Railway Institute is in Yanning Anke. Study on the deformation characteristics and action mechanism of low compressibility soil foundation in secondary specialized schools: 20 1 1-20 14, head of the science and technology development project of the Ministry of Railways, Tiesi Institute, is studying the fatigue damage characteristics and anti-fatigue control standards of ancient buildings in Xi 'an area under vibration load; The scientific research project of Xi 'an Rail Transit Co., Ltd. is under the responsibility of Shaanxi Provincial Communications Department 20 12-20 13. People are studying the deformation characteristics of highway subgrade in loess area. Analysis and Research on Mechanical Mechanism of Tunnel in Complex Environment 20 10-20 13, Head of Shanxi Provincial Communications Department. Design Theory and Construction Monitoring The person in charge of the Ministry of Education's Support Program for Excellent Talents in the New Century from 2007 to 2009 summarized the application of parametric variational principle in the analysis of multi-element composite foundation. In 2002-2004, the project leader of the Natural Science Foundation of Hubei Province completed the 200 key scientific and technological project of Hubei Province "Research and Development of Complete Equipment for Prestressed Pipe Piles in Soft Soil Area". 2-2005 Head of Theoretical Research on Reliability Analysis and Design of International Advanced Underground Engineering; Head of Hubei Provincial Natural Science Foundation 2005-2007 Key Project of Foundation Treatment Technology Research and Application of Mountain Expressway in Hubei Province; Head of Hubei Provincial Communications Department 2005-2008 Key Project of Comprehensive Construction Technology Research of International Advanced Complex Environment Shield Tunnel Project CCCC 2008-20 10 mainly participated in the closed project.