The paper introduced the application of chamber blasting and deep hole presplitting blasting to slope cut construction for reference.

Numerical simulation of improving permeability by deep-hole presplitting explosion in loose-soft and low permeability coal seam;

In this dissertation, several researching methods, such as theory analysis and numerical simulation and on-field experiment as well as practical engineering application, are used to systematically study the promoting permeability effect of deep-hole presplitting explosion as well as action mechanism of promoting gas drainage and preventing coal-gas outburst.

The vibration testing analysis of blasting in Tai-Chang freeway show that it is chamber & deep-hole pre-splitting blasting that can strikingly drop the seismic effect of chamber blasting,so it effectively solves some problems of slope stability,slope quality and safety of building & structure that blasting vibration brings about.

The vibration testing analysis of blasting in Tai Chang Exprassway shows that chamber & deep-hole pre-splitting blasting can strikingly drop the seismic effect of chamber blasting,so it effectively solves some problems of slop stability,slop quality and safety of building structures caused by blasting vibration.

The vibration testing analysis of blasting in Tai Chang Exprassway shows that chamber & deep-hole pre-splitting blasting can strikingly drop the seismic effect of chamber blasting,so it effectively solves some problems of slop stability,slop quality and safety of building structures caused by blasting vibration.