Abstract:Aimed at overcoming the disadvantages of the separation between geological information database and 3-D modeling system in hydraulic and hydro-power 3-D geological modeling software

the interactive design method

which combines 3-D geological database and 3-D modeling software

was proposed.And 3-D geological modeling platform

which is appropriate to hydraulic and hydro-power engineering

was developed on CATIA.By using the Microsoft SQL 8.0

3-D geological modeling database

which achieves the functions like data entry

data query

date delete

excel import and export etc

was established.3-D geological modeling platform was built through Visual Basic.net.This platform includes the basic modules like covering layer

geological layer

hydrological layer

and model analysis etc.When 3-D database is embedded into 3-D geological modeling platform

some functions including drill data importing

virtual drilling

and 3-D geological modeling section graphing can be realized.The design idea on the integration of 3-D geological modeling database and 3-D modeling platform comes true.