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- Part roof fall accident cause is analyzed in flase top mining in No.5 Coal Seam of Pinggang Coal Mine.The prevention and cure measures are pointed out. 通过对平岗煤矿5%23煤在托伪顶回采时发生的局部冒顶事故原因的分析,提出了解决该问题的防治措施。
- Through contrastive analysis for several roof falling accident in bolting tunnel,obtains some objective and subjective factors of the accident. 通过对几起锚杆支护巷道冒顶事故的对比分析,得出了发生事故的一些客观和主观影响因素。
- The Cause Analyses on Heavy Roof Fall Accident and its Preventive Measures 单体液压支柱工作面顶板事故的原因与防治
- Roof Fall Accident Cause and Cure Measures in Top Grade Average Coal Mining Face with False Top Mining 高档普采工作面托伪顶开采冒顶事故原因与防治措施
- Technology Analysis on Roof Fall Accident when Stope Face Crossing Fault and Prevention Measurement 回采工作面平推硬过断层冒顶事故的技术分析及防范
- Grouting Technology Applied to Water Inrush and Roof Falling Accident in FA Fault of Mao Khe Coal Mine, Vietnam 注浆技术在处理越南冒溪煤矿FA断层涌水冒落事故中的应用
- An Analysis of the Cause for Face Roof Fall Accidents and Preventive Countermeasures 工作面冒顶事故的原因分析和防范对策
- The Mechanism Analyses and Control Countermeasure About Two Coal Laneways Roof Fall Accidents 两起煤巷冒顶事故机理分析与控制对策
- The roof fell before he had time to rush out. 他还没有来得及跑出来,房顶就塌了。
- roof fall accidents 冒顶事故
- The miners were entombed in the cave when the roof fell in. 塌顶时矿工们被埋在坑内。
- Some Solutions to Prevention of Roof Falling Accidents of Dust Collector of Concrete Powder Storehouse 解决水泥粉仓除尘器冒顶事故的几点措施
- Abstract: A fall accident of three staffs going by cage at an auxiliary shaft of a mine is analyzed, and the preventive countermeasures are put forward. 文摘:对某矿副井发生的一起3名乘罐人员坠井事故进行了分析,并提出了预防措施。
- On the basis of spot investigation,the reason of sloughing and roof fall is analyzed,the technology measure is pointed out. 根据对工作面地质条件和现场的实际观察研究,对工作面片帮、冒顶现象的发生原因进行了分析,提出了预防片帮、冒顶的技术措施。
- The II3123 face is a light type caving face of three-soft coal seam.the roof is cracked,sloughing and roof fall often occur. 石台煤矿II3123工作面为"三软"煤层轻放工作面,顶板破碎易掉,片帮、冒顶时常发生。
- The roof fell about my ears. 层顶就在我的身旁坍下来。
- The roof fell beforehe had time to dash into the room to save his baby. 他还没来得及冲进房间把孩子救出来,房顶就塌了。
- The roof fell in. 屋顶塌陷了。
- She and I can't live under the same roof. 她和我不能住在一起。
- Therefore we can provide the preanalysis and treatment plans for similar drill string falling accident,so as to shorten accident-losing tim... 为现场处理类似的钻柱落井事故提供预先的分析和处理方案,以缩短事故处理时间,减少经济损失。