摘要
采用理论分析、实验测试和数值研究相结合的方法,对高压水射流冲蚀煤体机理进行了研究,为适用于煤层钻孔的高压水射流喷嘴及射流参数的选择奠定了一定的理论基础。同时论述了高压水射流对煤体的破坏作用、前期应力波的破坏作用及后期射流准静态压力和滞止压力梯度的破坏作用。
Study on erosive mechanism of coal by water jet was conducted with the method combining the theoretical analysis, experimental test and numerical research, which laid a theoretical foundation for the selection of high-pressure water jet nozzle and jet parameters suitable for seam boreholes. The paper simultaneously discussed the destructive effect of high-pressured water jet to the coal body, the destructive effect of the earlier stress wave as well as the destructive effect of the static pressure of the later water jet and the stagnation pressure gradient.
出处
《矿业安全与环保》
北大核心
2006年第B06期4-6,共3页
Mining Safety & Environmental Protection
基金
国家"十五"科技攻关项目(2004BA803B0109)
