1) leakage risk of top coal
端面漏冒
1.
The law of fracture and instability and leakage risk of top coal in thick coal seam with a stratum of gangue in fully-mechanized mining with top coal caving is obtained aft
本文以涡北煤矿8102工作面的地质条件和生产技术条件为基础,综合运用理论分析、数值模拟和现场实测等方法,对软煤、厚硬顶板、含夹矸厚煤层综放开采围岩运移规律、夹矸层对顶煤冒放的影响及含夹矸层顶煤端面漏冒机理进行了系统研究。
2) roof falling in face area
端面冒顶
3) roof fall at the end-face
端面冒落
1.
9602 coal face at Zhang Ji Colliery in Xu Zhou Area, reasons of roof fall at the end-face are analyzed, which exists at conventional machine mining face in large dip and mining height coal seam, controlling roof fall measures at the end-face are put forward.
根据徐州矿务局张集煤矿9602工作面发生的端面冒落事故和现场实测数据,分析了大倾角“大采高”煤层高档普采工作面端面冒落的原因,提出了控制端面冒落的措施。
4) leakag
漏冒
1.
The leakage type roof cave has two kinds of type,which are big area leaking and partial leaking.
漏冒型冒顶有大面积漏垮型和局部漏冒型两类,它的危害较大,其预防措施主要是支护好直接顶板,防止出现局部漏冒。
5) shaft-end vaporizing
轴端冒汽
6) spill
[英][spɪl] [美][spɪl]
溢漏，跑、冒、滴、漏
补充资料：端面
（～儿）圆柱形工件两端的平面。
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