1) cave-in mine tremor
冒落矿震
1.
Systematical earth pressure induced by cave-in mine tremor of untreated hollow regions or unknown mine-out regions is a main form of disasterous earth pressure in China's mines.
未处理空区或暗空场冒落矿震触发系统地压是我国矿山灾难地压的主要形式。
2) Cave-in type mining tremor
冒落型矿震
1.
Cave-in type mining tremor is a common disaster in mined-out area.
冒落型矿震是一种普遍发生的采空区灾害,正确确定冒落矿震的能量是准确预报矿震强度的前提。
3) mine tremor due to falling in
顶板冒落矿震
4) ore earthquake triggering accident
冒落矿震触发地区灾变
5) 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
6) 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。
补充资料：爆破落矿
爆破落矿
ore break by blasting
度、单位炸药消耗量、炮孔或药室的布置、装药结构以及爆破技能等。 对于坚硬矿石，落矿费用中凿岩占60%一70%，爆炸材料占20%一30%，装药和爆破占10%一2()味。 (龙凌霄)匕ooPO}LJokLJong爆破落矿(ore break by blasting)通过爆破崩落矿石的作业。根据装药空间不同，落矿爆破分为炬吁L爆破和响室爆破。炮孔爆破按孔的深度分为浅眼爆破、中深孔爆破、深孔爆破。根据药包形状，落矿爆破分为柱状药包爆破和球状药包爆破。根据爆下矿石的碎胀状况，落矿爆破分为自由空间爆破和挤压爆破;自由空间爆破是指供爆下矿石破碎膨胀所需空间(补偿空间)足够大，能满足矿石的自由碎胀。 评价爆破落矿效果的主要指标是:凿岩劳动生产率(即凿岩工或设备每班钻孔长度及相应的崩矿量);矿石损失率;犷石贫化率;大块矿石产出率;单位炸药消耗量等。爆破落矿效果主要取决于矿石的坚固性、节理和裂隙的密度、矿体厚度、自由面数、炸药性能和密
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