7+452 and ZK47+507~ZK47+388,The two rock engineering properties is plex, including Ⅲ, Ⅳ, Ⅴ level of surrounding rock, based on the TSP of 2D reflective surface figure and rock physical parameters, and the rock elastic p-wave velocity, judge the surrounding rock of discri- minant indicators: Hard rock, rock integrity and the qualitative quantitative numerical groundwater status, after the level classification equation, combined with the actual tunnel excavation pared, the results show that the grade of surrounding rock and the classification method of engineering information construction has the direc- tivity, can effectively save the budget. Key words:Tunnel;TSP Advance Prediction System;rock sub-classification Graded index;Quantification theoryⅡ;Monitoring and Measurement 万方数据
全文预览
