1) control caving
控制放顶
1.
Based on the characteristic of large primary bestraddle distancel,ong periodic fracture hanging roof and serious threaten to mine safety in hard roof long working face,three control caving methods of the primary fracture and the reasonable hanging roof length of periodic fracture are studied systematically.
基于坚硬顶板长壁工作面初次跨落步距大、周期断裂悬顶长,对采场安全危害严重的特点,系统研究工作面顶板初次断裂的3种控制放顶方式和周期断裂的合理悬顶长度。
2) control on top coal caving
顶煤放出控制
3) overhead caving
强制放顶
1.
Experimental research on non-hard overhead caving in shallow buried coal seam;
浅埋煤层非坚硬顶板强制放顶实验研究
4) the grooving top-caving method/local grooving top-caving technique with controlled explosion
切槽放顶法/控制爆破局部切槽放顶技术
5) Roof control
顶板控制
1.
Discussion about roof control technology development of China in future;
对我国今后顶板控制技术发展的探讨
2.
The roof control technology of combined machinery island face in Jining No.2 Coal Mine;
济宁二号煤矿综放孤岛工作面的顶板控制技术
3.
The selecting type of the support and roof control in soft rock coal seam floor
软岩底板煤层支架选型及顶板控制研究
6) roof caving control
控制冒顶
补充资料：综采放顶煤
综采放顶煤：厚煤层煤炭开采技术之一。把原来分层开采的煤炭，一次采完。方法是，在煤层底部按传统方法开采，使上面的煤炭在矿压的作用下，自动落下来。
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