摘要
介绍了处理综采工作面坚硬顶板的两种方法:强制放顶法和压力注水弱化顶板法,分析了两种方法的效果及优缺点,论述了两巷断顶法的工艺方法和深孔爆破参数的选择,探讨了压力注水弱化顶板的机理和注水孔的布置及压力注水工艺。
Introduces two methods of treating hard roof of fully mechanized mining face ： enforced top coal caving method and pressure water injection weaken roof method, analyses the effects and the advantages and disadvantages of the two methods, elaborates the technique and selection of the deep hole blasting parameters of two roadways break tip roof method, discusses the mechanism of pressure water injection weaken roof and the arrangement water injection hole as well as the process of pressure water injection.
出处
《山西焦煤科技》
2009年第2期25-27,共3页
Shanxi Coking Coal Science & Technology
关键词
坚硬顶板
爆破放顶
压力注水弱化
工艺
分析
效果
Hard roof
Blasting top coal caving
Pressure water injection weaken
Process
Analysis
Effect
