1) plentiful water aquifer top layer elevation
富水岩层顶板
2) roof strata
顶板岩层
1.
Dynamic events in roof strata-occurrence and prevention;
顶板岩层动力事件发生机理与防治方法
2.
Instability behavior for roof strata in shallow seam longwall mining;
浅埋煤层长壁开采顶板岩层的不稳定性态
3.
The instability of the gob roof will cause slow or catastrophic damage to the cover rock in strip mining, the instability and failure mechanism of the gob roof strata can be studied by catastrophic theory.
采空区顶板的失稳会导致条带开采覆岩系统缓慢或突变性的破坏,采用突变理论可以揭示采空区顶板岩层破坏失稳机理。
3) roof stratum
顶板岩层
1.
The effects of roof stratum\'s physical properties,geometry parameters and movement states on rock burst danger were analyzed by numerical simulation with UDEC4.
0对煤层上覆顶板岩层的物理、几何属性及运动状态对煤体冲击矿压危险性的影响规律进行了模拟研究。
2.
Aiming at the influence effects of roof stratum on rock burst,the research methods of physical simulation experiment in laboratory,UDEC 4.
针对顶板岩层对煤体冲击的影响作用机理,采用实验室物理模拟试验、UDEC 4。
4) water-rich coal and rock seams
富水煤岩层
5) sandstone water from roof
顶板砂岩水
6) water-resisting roof layer
顶板隔水层
补充资料：地下水水资源评价(见水资源评价)
地下水水资源评价(见水资源评价)
d ixiashui shuiziyuan Ping】ia地下水水资源评价见水资源评价。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条