摘要
基于采动覆岩中的关键层理论，深入分析了相邻坚硬岩层所产生的复合效应。
On the basis of the research of theory of key strata in the m ining rocks, the com pound effectcaused by hard strata is studied in detail. The fracture span of com pound key strata is calculated by F E M .
出处
《岩土力学》
EI
CAS
CSCD
1999年第2期1-4,共4页
Rock and Soil Mechanics
基金
国家自然科学基金
煤炭科学基金
关键词
采动覆岩
采场来压
复合关键层
断裂跨距
key strata theory , mining rocks , roof w eighting , compound key strata , strata control
