Several Problems of Dam Construction by Directional Blasting

摘要

In China dam construction by directional blasting method started in 1958. Until now a lot of dams have been completed for various developmental purposes, such as storage dam, mudflow protection dam, tailings storage dam, fly-ash storage dam, cofferdam, etc. According to the practical experience of building dams by directional blasting in China, the study of the following problems is of great importance. Planning and arrangement of charges; Effects on tunnel due to explosion and its safety criterion; Problems of vibration due to blasting in rock; The deformation characteristics of dams.