The Principle And Realization Of The Assistance System Of The Tunnel Construction Progress

The primary theory of tunnels and the concepts related were introduced. The construction methods of tunnels were analyzed and compared. The model block of the assistance system of the tunnel construction progress and the design method of the data base and the core algorithm were suggested. This system is an important part of the intellectualized system of the survey and design of railways and it can be also used for reference for the tunnel construction.The system was developed on the basis of WindowsXP operation system. The Visual C++6.0 was adopted for the developing platform. AutoCAD 2000 was used as the graphic support environment. The Microsoft Access was used as the database management tool. Meanwhile, the ObjectARX 2000, the most powerful development tool, was applied for the system development. The problems on the input, the pretreatment, and the analysis and calculation, graphing, editing, and adjusting of the basic data were solved successfully. A complete system of item management, management of tunnel parameters, calculation and analysis of patterns, local optimization of patterns, marking of graphs, graphing, and output of data and information was established.The software of the assistance system of the tunnel construction progress was put into practice to analyze its running environment, installment, programs loading and using method. The analysis indicated that the design of the assistance system was reliable theoretically. The model block was characterized with multi-functions, logical relationship, reasonable algorithm design, safe system running, friendly and direct-viewing surface, and convenient operation. The system run smoothly after it was used by some design institute concerned. It was really applicable.