Research methods: Based on the system theory and control theory, the rational survey program is worked out, the rational survey method is selected, and many methods are adapted for the important objects to snake comparisons. In this paper, the method and technologies used for surveying geological conditions in this section are summed up.
Research results: The surveying work was complete in 2005 and the survey achievement has been appraised.
Research conclusions: The construction of about two years shows the result of geological survey conforms to the real geological conditions.