Based on expatiating the dynamic characters of groundwater level,we analyzed the period of groundwater level variation by the spectrum analysis method,also made the optimization on observation frequency of groundwater monitoring network in the plain of Shiyanghe River Basin.

Study on Environmental Sanitary Quality of Underground Public Place and its Effects on Employees' Health in Yangzhou;

Design and Construction of Underground Vertical Oiltanks;

Research on Development of City Underground Transportation Space——Trial on how to solve the traffic problem in downtown area by using underground vehicle channels;