摘要
提出了煤巷板裂结构顶板分层绞接拱极限跨距理论，通过对这类结构顶板的极限跨距理论分析，指出了煤巷板裂结构顶板分层绞接拱的稳定性判据，并通过一具体实例说明其理论和应用价值。
Put forward coal roadway pit board fracture structure separated layer hinged arch limited span theory,on the basis of the limited span theory,pointed out and provided stability basis for coal roadway pit board fracture structure separated layer hinged arch in roadway and proof the limited span theory application volume by the actutal examples.
关键词
煤巷
板裂结构
绞接拱
极限跨距
分层绞接拱
coal roadway,pit board fracture strcture,hinged arch,limited span
