drill-and-blast method

the drill-and-blast method possesses greater flexibility and adaptability than the tunnel boring machine method due to its ability to accommodate various tunnel cross-sectional shapes and geological conditions. Consequently, it is more widely applied. Moreover, benefiting from the rapid advancement

In recent years, with the intensification of population aging and increasingly harsh tunnel construction environments, the replacement of human labor with machines has become an inevitable trend in the current development of tunnel construction. As one of the two mainstream tunnel construction

The construction of the Sichuan-Tibet railway faces numerous challenges such as significant terrain elevation differences, complex geological characteristics, and a harsh climatic environment, among which the high altitude has particularly significant effects on the Sichuan-Tibet railway