岩体爆破性分级研究进展

分析研究了国内外岩体爆破性分级现状，指出各种矿岩可爆性分级法的主要区别在于判据的选取和处理手段不同。由于岩石的多样性，难以做到全面、精确地评价矿岩可爆性，而且也是不现实的。因此根据矿岩的属性，正确、合理地选择可爆性指标和处理极其重要。弹性波速度作为爆破分极指标，其测试方便，能综合反映岩体、岩石各种力学性质、裂隙性质，具有很大的发展前途。为了有效地进行矿岩可爆性分级并优化爆破参数，应针对不同矿岩性质，采用数学方法，合理地选择矿岩可爆性分级的判据。

ADVANCE IN STUDY ON ROCK BLASTABILITY CLASSIFICATION

In this paper,the present situation of rock blastability classification at home and abroad is studies It is pointed out that the main difference of rock blastability classifications is in the selection and processing means of criteria For the variety of rock characteristics,it is difficult and unpractical to evaluate rock blastability exactly and in an all round way So it is important to select the indexes of rock blastability correctly and reasonably according to the characteristics of rock Taking the elastic wave as the idexes of blastability classification,it is convenient in measurement Such indices can integratedly reflect the rock characteristics such as mechanics,fracture,etc In order to get the rock blastability classification and blasting parameters optimiztion,the criteria of rock blastability classification can be reasonably selected based on the different rock characteristics with the mathematical method This method has a promising future