Engineering Geological Information System Analysis And Programming Based On GIS

GIS-based Shandong Provincial highway Engineering Geological Information System using computer data processing of high accuracy, high operational speed characteristics, with geographic information systems in the graphics output, spatial analysis, the great advantage to achieve Shandong Province highway engineering geological information management. This paper is traffic technology projects in Shandong Province, "based on 3S's Shandong Provincial Expressway Engineering Geological Information System" based on the purpose of the project geological data analysis, application of GIS projects to the regional geological information management approach, Modern technology in geological information update, query, the corresponding development of computer software systems.Primarily by the data management, graphics and image management and highway route selection decision analysis of three subsystems composed of interconnected subsystems, form an integral whole, and in the systematic and standardized information roadbed engineering geology at the same time, effectively Highway provide a basis for decision-making of the election.And, the data message management subsystem uses use Access database powerful database management capabilities, the SQL standardization query language, realizes the drill hole data, the standard penetration empirical datum and the earthwork empirical datum input, the editing, the inquiry function, and can be an effective solution to manage and update the information. The graph image management subsystem, using the MAPGIS formidable image management function, saved Shandong Province graphic documents and so on administration regionalization, hydrology geology, geological type; it Entrusts with the only identification code spatial databases's in entity (ID), and connected it with the corresponding attribute database's attribute data, realized the graph and the related attribute information edition, the renewal, the linkage inquiry function; the reaserch carried on the re-development in the MAPGIS platform, realized the drill hole on the Shandong Province background chart the exhibition as well as the stick plot automatic production, achieved the achievement demonstration the diversification. Highway route selection decision analysis subsystem to Visual Basic 6.0 development language for procedures using superposition of DTM analysis of spatial analysis technologies have been realized on the basis of scientific research Highway route selection phase of the situation and earth-line information such as the automatic volume Analysis.Thesis research projects for the realization of regional geological data information management and application of new ideas and engineering application examples show that the system set up reasonable, correct result, users can easily manage and analysis has been built along the highway engineering geological information, and its long-term maintenance. Save a lot of manpower, material and management costs for the realization of the school resource sharing, support for the planning and construction of scientific decision-making, and improve individual engineering investigations, as well as on geology provide the basic data are very important significance.