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冒落采空区
相关语句
  caving goaf
     STUDY ON OXYGEN CONCENTRATION NONEQUILIBRIUM IN CAVING GOAF
     冒落采空区氧浓度分布非均衡性研究
短句来源
     In order to analyze air leakage strength and oxygen concentration distribution characteristics of stoping goaf,finite element model of caving goaf air leakage flow pattern and oxygen concentration variation is established with heterogeneous air leakage seepage equation and oxygen concentration dissipation equation and resolved against observed data,and the flow field near working face is treated as two-flow layer flow between caving medium and caving slack.
     为分析回采采空区漏风强度与氧浓度分布特征,用非均质漏风渗流方程和氧浓度耗散方程建立了冒落采空区漏风流态和氧浓度变化的有限元数值模型,结合观测数据进行了求解; 工作面附近流场按冒落介质和冒落空隙间的双流层问题处理。
短句来源
  相似匹配句对
     The prediction of the hazard caused by weighting over great extent of top layer in mine worked-out section area
     采空区顶板大面积冒落危害预测
短句来源
     Study on the Technical Measures for Controlling the Roof-fall in Mined Area
     采空区顶板冒落防治技术措施的研究
短句来源
     Managemen of Spontaneous Combustion Fire in Goaf
     采空区火灾的治理
短句来源
     Analysis on the Heat Dissipating Capacity of Goaf Heat Flow
     采空区热风散热量的解析
短句来源
     MONITORING AND FORECASTING OF STRATA CAVING IN MINES
     矿山岩层冒落的监测预报
短句来源
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In consideration with the practical conditions of the underground mined area in TAOCHONG,the possibility of caving in with the hanging wall and the potential damages are analyzed.A new technique about expanding the ceiling area of mined area and inducing the hanging wall to cave in itself is used.The technique is eventually proved successful as no accident happened during the caving in and the remnant ore in the mined area is recovered safely. Hanging wall foot wal mined area property mined area underground...

In consideration with the practical conditions of the underground mined area in TAOCHONG,the possibility of caving in with the hanging wall and the potential damages are analyzed.A new technique about expanding the ceiling area of mined area and inducing the hanging wall to cave in itself is used.The technique is eventually proved successful as no accident happened during the caving in and the remnant ore in the mined area is recovered safely. Hanging wall foot wal mined area property mined area underground the oreing.In combination with the pratical conditions of Taochong mine,the dangerous factors and degree have been analyzed.A new method of entrapping rockfall was put forward.The practice show that the method have better safty,and the iron ores have been fully mined in pratice.

结合桃冲铁矿井下空区赋存状态,分析了顶板围岩的可冒性以及冒落危害的程度,提出并实施了扩展采空区顶部面积、诱导采空区顶板围岩自然冒落的采空区处理技术,实现了井下空区冒落无事故、空区残留矿量得到安全回收的良好效果

The uneven metnane emission of the 88203 coal mining face in kangjiatan mine is investigated and analyzed in this paper,the study outcome shows that the barometric change,roof fall over great extent,gob air leak and near seam methane emission are the impact factors.Thereinto,the barometric change is the most important factor.at last,we raised the aimed techno-measure to prevent the uneven methane emisson.

通过对康家滩矿88203回采工作面尾巷瓦斯异常涌出的考察、分析,分析结果表明大气压变化、顶板大面积冒落、采空区漏风和邻近层瓦斯涌出是回采工作面尾巷瓦斯异常涌出的原因,其中大气压的变化是最主要的原因。提出了针对性的防治回采工作面尾巷瓦斯异常涌出的技术措施。

Investigation and analysis on the abnormal methane emission in 88203 coal face in Kangjiatan Mine were made in this paper, the study results showed that the barometric change, roof fall over great extent, the air leakage in the gob and the methane emission in the adjacent seam are all impact factors of abnormal gas emission in the tailgate of coal face. Of which the barometric change is the most important factor. On the basis of the analyzing results, the authors put forward the aimed techno-measures for the...

Investigation and analysis on the abnormal methane emission in 88203 coal face in Kangjiatan Mine were made in this paper, the study results showed that the barometric change, roof fall over great extent, the air leakage in the gob and the methane emission in the adjacent seam are all impact factors of abnormal gas emission in the tailgate of coal face. Of which the barometric change is the most important factor. On the basis of the analyzing results, the authors put forward the aimed techno-measures for the prevention and control of abnormal gasemission.

通过对康家滩矿88203回采工作面尾巷瓦斯异常涌出进行考察、分析,表明大气压变化、顶板大面积冒落、采空区漏风和邻近层瓦斯涌出是回采工作面尾巷瓦斯异常涌出的原因,其中大气压的变化是最主要的原因。在分析结果的基础上提出了针对性的防治瓦斯异常涌出的技术措施。

 
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