光面爆破和预裂爆破破裂机理的研究

A Study on the Fracture Mechanism of Smooth Blasting and Pre-split Blasting

本文提出了光面爆破和预裂爆破的断裂力学模型,分析了应力波、爆生气体准静态压力在爆破破裂过程中的作用。通过有限元计算,研究了光面爆破和预裂爆破的断裂特征,阐述了光面爆破和预裂爆破的破裂机理。

This paper presents a fracture mechanics model of smooth blasting and pre-split blast-ing, analyzes the function of stress waves and quasi-static pressure of explosion in blasting process. By means of finite element calculation the fracture features of smooth blasting and pre-split blasting have been studied, and their fracture mechanism has been expounded.