单体液压支柱四四排管理方法的研究

Research on Four-Four Line Arrangement of Single Hydraulic Supports

单体液压支柱四四排管理方法是在三四排、四五排控顶的基础上发展起来的一种新的顶板管理方法。它集中了三四排、四五排控项方法的优点，是回采工艺方式的一项改革。经近十年的实践，实现了安全高效、减化回采工序方式、降低成本的目的。

The four-four line arrangement of single hydraulic supports represellts a newly developed roof arrangement based on three-four line and four-five line arrangement. The arrangement combining the advantages of three-four and four-five line arrangements marks a reform centered on cutting technique. Many years' practices have proved that the arrangement can afford greater safety,higher efficiency, less cutting operation and lower costs.