摘要
用灰色关联分析法分析了冻土爆破性影响因素之间的密切关系，评价了几种冻土的爆破性。变形能系数与抗拉强度关系密切，其次为纵波速度和爆破漏斗体积。试验测出冻结砂土、冻结粘土在－７℃、－１２℃、－１７℃温度条件下爆破性的影响因素，综合评价表明－１７℃的冻结粘土最难爆破。
In this paper, the factors influencing frozensoil blastability and frozensoil blastability are analysed with the grey correlation method. Tensile strength is closely correlated to strain energy factor, secondarily the factors, such as velocity of longitudinal wave, volume of blasting crdter. The factors effecting blastability of frozen sand and clay under the temperature of -7℃,-12℃and-17℃are obtained from the tests.The results have shown that the frozen clay under the temperature of -17℃is the more difficult to be blasted.
出处
《工程爆破》
1996年第2期21-25,共5页
Engineering Blasting
关键词
灰色关联分析
冻土
爆破
关联度
Grey system correlation analysis
Blasting of frozensoil
Correlation degree
