Construction Method And Application Of Knowledge Base For Highway Karst Geological Route Selection Cases

In the process of road selection,engineering geology problems are often one of the core factors in controlling the course of the route,and are also an important indicator to consider the safety and economy of the route.In recent years,a large number of case selection routes for engineering geology have been accumulated in domestic highway and railway construction,and a wealth of experience in the selection of engineering geology has been summarized.The establishment and application of the karst geological route selection case knowledge base enriches the highway CAD technology theory and methods,and is of great significance for the aiding design personnel to make more scientific decision-making on the geological route selection.The topic of this paper is correct.Based on AutoCAD Map3 D technology platform,this paper takes Access database as knowledge storage space,selects karst geological route selection case knowledge base as research object,collects and summarizes related results of karst geological line selection case,and systematic framework of karst geological route selection case knowledge base and Development and application were studied.The paper collected 103 cases of karst geological line selection by summarizing highway design data,consulting academic works,collecting online materials,and on-site investigations,and summarizing the avoidance and crossing rules for karst geological route selection;on this basis,the selection of karst geology The classification and characteristics of line knowledge were analyzed,and three knowledge sub-banks of the case base,geological knowledge base,and rule base were organized through the expression patterns of graphics,images,and texts,and they were linked with the aid of geological keywords,and were constructed in a reverse inference manner.The system framework of the karst geological route selection case knowledge base;According to the construction theory,the geological line selection knowledge base data model was designed,and the digital geological object with attribute information was established in the method of writing geological information in geological objects in line and planar space.Through the automatic retrieval of the digital geologic objects in the route buffer for spatial knowledge query,the knowledge base of the geological line selection case is queried,and the support for geological information knowledge in the course of highway route design is realized.