Based on the geologic and hydrogeologic conditions of the upper reservoir of the Pushihe pumped-storage power station, a 3-D numerical simulation model of fractured rock was established to calculate and analyze the groundwater movement regularity of the reservoir-rock system, and the leakage volume and distribution characteristics of the flow field under various operating conditions.

The external water pressure of Xiamen Subsea Tunnel is analysed,and a leakage computation schema of crack lining is advised in this paper.

This paper emphatically discusses on the stratigraphic lithology, hydrogeological conditions relative to the leakage of channel water delivery section on North Trunk Line of Yellow River Delivery Project (YRDP) of Wanjiazhai, Shanxi Province, makes quantitative calculation of the leakage, and evaluates the loss caused by the channel leakage.

To study man-made lake s leakage in national forest park,the seepage experiment on site is accomplished.

With low storage water level,the seepage was less than 30 L/s.

The model has been used to predict the seepage and the results were compared with the regulating calculation results.

Some questions such as disqualification dam,many cracks in developing dam body,disperse-impregnation in the downstream slope of dam,forming ascending spring owing to marshization in dam back,wadding educts coming from drainage ditch and rearing pond and a lot of seepage amount were occurred.

Through analysis of the hydrological geology condition of the city proper section in Taiyuan Fenhe River water storage project, this paper probes into the effect of calculating water storage and seepage amount in Taiyuan Fenhe River water storage project on Lancun fountain domain water resources and puts forward rationalize proposal.