1) top-coal caving characteristic
冒落性
1.
Based on the characteristic of steep coal seam by roadway caving mining method and layered fracture theory of coal containing pressurized gas, nine sensitive factors affecting top-coal caving characteristic were analysized.
以巷道放顶煤采煤法的特征及含气煤层层裂理论为基础提出了 9个影响顶煤冒落的因素 ;用工效表征顶煤冒落性 ,借助灰色理论中的关联分析方法 ,研究了各种因素对顶煤冒落性的影响程度 ;结论表明 :因素的重要程度依次为瓦斯含量、采深、煤层厚度、直接顶、倾角、坚固性系数、老顶、底板、夹矸系数 ;坚固性系数的影响受气体场作用而减小 ;这些结论为进一步研究巷道放顶煤采煤法顶煤冒落判据以及对策奠定了理论基础 表 3 ,参
2) fall
[英][fɔ:l] [美][fɔl]
冒落
1.
The hing girder assorting with π type steel used in broken caving roof in Nanshan Coal Mine,Hegang Mining Bureau can not only solve the roof fall accident but also meet the needs of section mining support.
鹤岗矿务局南山煤矿在破碎易冒落顶板中 ,铰接顶梁与π型钢梁配套使用 ,不仅解决了顶板易发生的抽漏冒顶事故 ,而且满足了分层开采各分层顶板支护的要
2.
Through observing and analyzing to roof and wall of spot in 6114 workface,this paper sum up rules and features of rib spalling and roof fall under complicated geology condition in sub-level caving mining workface,it raises a series of roof control measures and gets good result.
通过对 6 114工作面顶板、煤壁现状的现场观测和理论分析 ,总结出了复杂地质条件下综放工作面煤壁片帮、端面顶板冒落的规律和特点 ,提出了一系列复杂地质条件下综放工作面顶板控制措施 ,现场应用后取得了较好的效
3) Roof fall
冒落
1.
The roof falling types of worked out area in south mining district are pointed out, which are scattered falling and batch falling.
指出南区采空区顶板冒落形式 ,一是以散体形式零星冒落 ,另一是批量冒落。
4) roof falling
冒落
1.
To predict roof falling,AE field tests have been conducted and AE monitor holes are laid out based on the block analysis.
为了预报冒落事故，开展了声发射（ＡＥ）现场试验，并在块体分析的基础上布置了ＡＥ监测孔。
2.
To predict roof falling) AE field tests have been conducted and AE monitor holes are laid out based on the block analysis.
为了预报冒落事故,开展了声发射(AE)现场试验,并在块体分析的基础上布置了AE监测孔。
5) cover rock caving
覆岩冒落
1.
Mechanism and protection on subsidence and cover rock caving of mining;
开采引起的覆岩冒落及地表沉陷的机理与防护
补充资料：连续性与非连续性(见间断性与不间断性)
连续性与非连续性(见间断性与不间断性)
continuity and discontinuity
11an父ux泊g四f“山。麻以角g、.连续性与非连续性(c。nt，n琳t:nuity一)_见间断性与不间断性。and diseo红ti-
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