Taking Da-ning River Bridge in construction as the engineering background,the optimization analysis of cable forces and segmental cambers has been carried out during the process of arch rib segmental installment.

Grand Canal historical and cultural environment conservation support system;

Grand Canal of Ming and Qing Dynasties and Jining Urban Construction;

Recognition of the Holistic Values of The Grand Canal;

Primary Research on Geoengineering Route of Diverting Daning River to Han in the South-North Water Transfer Project;

The modified water complementation scheme from Daning river to Hanjing river,a kind of pumped storage system;

The Impact of Three Gorges Reservoir on Sedimentation of Daning River:Changes in Carbonate and Major Element Contents;

Analysis of tidal water level and tidal resistant discharge in irrigation period of Daliaohe river;

Daliaohe River is a main river which brings pollutants into Liaodong Bay of Bohai Sea.

Samples were analysed with X-ray deffra-ction method to determine mineral compositions for comparison with data from somelarge chinese rivers (Huanghe, Changjiang and Daliaohe Rivers et al.