| In this article, idealized elastic plastic model and three-dimension finite elements programs have applied to analyzing and researching the stress and displacement distribution of 4 high-steep slopes excavated on the Wan-Liang expressway, and the relationship has been gained between the stress existing in excavated rock slopes and stability coefficient with depth change through the self-made FORTRAIN program's application to the computation of slopes' stability coefficient; at the same time, through the analysis of the slopes' stability coefficient, such conclusion has been gotten that cohesion in the slipping zone has important effect on slopes' stability and some proposals have been presented to improve the anti-shearing ability of the slipping body through enhancement of the cohesion in the slipping body.In the second part of this article, with analysis of the system engineering , software requirement and acceptability for the management information system , author has finished definition structure design , logical structure design and physical structure design of the database with ASA6.0 of Sybase company , and got the corresponding definition structure and logical structure models . In the environment of PB7.0 , designed the relation of models , detail of every model and coding them , completed the interface of this system and the function of every model . This system can provide timely and effective information to support decision making and other necessary management function . At the same time , the procedure of design in this system completely comply software engineering method , and every models obeys database design certification . So this system has reference and guide function to later similar engineering database . |
PDF Full Text Request