The paper presents the design of bridge blasting demolition scheme. methods has become preferred method for not only in war period but also where service life is exceeded. Compared with other method, evince more advantages as higher demolishing progress, lower cost and easier construction safety control. scheme contents position, parameters protections.

The research aims to investigate the failure characteristics of rock caused by blasting under high stress, explore energy generation and its transfer release in effects blasting. Physical experiments numerical simulations were performed. results showed that, as with AE time-series data, attenuation time activity increases number events, thereby decreasing overall stability samples. In terms spa...