Development of Fragmentation Simulation System used for Crushing and Leaching In site;

Test and study on blasting crush rate and lump rate distribution;

Based on the fractal characteristics of the blasting fragmentation distribution,the paper derived a relationship between the explosive specific charge and the uniform exponent of the distribution,which is instructive for predicting the fragmentation.

This paper verified with grey correlation analysis method that the explosives unit consumption is the main factor affecting the blasting fragmentation and also demonstrated that the adjustment of pattern parameters in blast design is still very important to the control of blasting fragmentation.

The reflection of adding different kinds of CaCO, and dispersing agent on the mechanical properties of PE layer in Al/plastic pipe was studied, and the hoop tensile force, bursting strength and time resisting the static pressure of the modified Al/Plas-tic pipe were also tested.

The static internal pressure, bursting strength, and hoop tensile strength are 2.

In this article,the cylinder testing pressure and safe factor is researched from controlling its fuzzy reliability range of bursting strength of ultrahigh pressure cylinder during pressure test and normal operation based on the reliability design theory and methods of random-fuzzy probability model.

Application of on artificial neural networks to blasting fragment prediction;

8 detonator as blasting source in deepwater condition which is simulated by explosion vessel,then the blasting fragments are collected and analyzed statistically.

The instantaneous and millisecond blasting crater model experiment of frozen sand is conducted at -17℃, and the blasting fragments are collected and statistically analyzed.