The law of deformation and the breakage of coal floor vary with coal mining are discussed.
重点讨论了煤层底板的应力、位移随工作面开采的变化规律；
The expert system will be of some values for controlling and preventing water inrush from coal floor.
底板突水危险性评价专家系统将对矿井底板水害防治具有一定的实用价值。
The mechanism of water inrush from coal floor in longwall face is simulated by the similar material tests.
利用相似材料模拟试验，模拟了采场底板突水机理。
The influence to the coal floor and the overlying rock with different coal-pillar width is analyzed and compared;
通过理论和数值模拟的综合比较，得出合理的煤柱宽度。
Abstract: in the process of coal mining, fissure water and gas enrichment, storage, transport, water-inrush from coal floor and gas outburst is induced.
摘要：在煤矿开采过程中，裂隙是水及瓦斯富集、存储、运移的场所，是诱发煤层底板突水和瓦斯突出的重要因素。
This paper reviewed the theories and methods on water inrush from coal floor from two facets that is the theories of water inrush and methods of coal floor destroy.
本文从煤层底板突水研究理论、煤层底板破坏研究方法两个方面对煤层底板突水研究的理论和方法进行评述。
Research results for further research on crack Angle on the influence of creep and water-inrush from coal floor and gas outburst prevention provide a theoretical basis.
研究成果为深入研究裂隙角度对蠕变的影响以及预防煤层底板突水和瓦斯突出提供了理论依据。
This paper considers comprehensively water source, water pressure, impedance water strata, and fault ectal factors to establish a ANN forecast model for water-inrush from coal floor.
本文综合考虑水源、水压、隔水层、断层等因素对煤层底板突水的影响，建立了煤层底板突水人工神经网络预测模型。
The numerical simulation reveals the formation principle of water inrush channel in coal floor with fault structure as well as influential rule of fault dip on water inrush in coal floor.
模拟结果在一定程度上揭示含断层构造底板突水通道的形成机制及断层倾角对底板突水的影响规律。
Nelson picked his way along the tunnel, stepping around piles of broken stone and lumps of coal tumbled like black dice across the dusty floor.
Nelson沿着隧道小心前行，绕过成堆的碎石和许多块像黒骰子般滚落到粉尘地上的煤炭。
A carbon floor price, announced in late 2010, makes dirty coal-generation more expensive.
2010年底宣布的碳最低保证价，使煤电生产成本更高。
Finally, we have presented some opinions for Water inrush mechanism at the floor of Coal Seam and have proposed a new method for strengthening the resistivity against dynamic load.
最后，对煤层底板的突水机理提出了一些见解，并且，提出了一种加强底板抗动载能力的新方法。
Rockmass structure is one of the controlling factors to coal seam floor's stabilization, and it has an important influence on the mining effect of coal seam floor.
底板岩体结构是煤层底板岩体稳定的主控因素之一，对煤层底板采动效应有着重要影响。
Therefore, study on the deformation and breakage law of upper and down floor of coal layer, the character of formation, each fault factor are the key problem for prevention the water inrush.
因此，对煤层顶底板的变形破坏规律、构造特征以及断层各要素的研究都是防治奥灰岩含水层突水的关键问题。
For a long time, the safe mining of our country's coal resources has been seriously affected by a primary factor which is water inrush from coal seam floor.
长期以来，煤层底板突水一直是严重影响我国煤矿资源安全开采的一个主要因素。
The water-inrush from floor inundates Working face 51101W in Liangzhuang coal mine, Xinwen Mining Group.
新汶矿业集团良庄煤矿51101W工作面因底板突水导致工作面被淹。
Artificial neural network technology is applied to water inrush forecast of coal seam floor of Feicheng mine area.
将人工神经网络技术应用于肥城煤矿区煤层底板突水预报中，并且开发研制成突水预报人工神经网络系统。
In the high scale seismic profile after the wavelet transform the roof and floor reflection events of the coal bed can be distinguished clearly, Which is invigorative in coal thickness interpretation.
在小波处理后的高尺度地震剖面上可以清晰地分辨煤层顶、底板反射波，对于煤层厚度的解释具有重要的参考价值。
The contour map of coal-floor is the most important geological map in the production of coal-mine. It is the base of design, production and reserve-counting of coal-mine.
煤层底板等高线图是煤矿生产中最重要的地质图件，是煤矿设计、生产、储量计算的基础。
This paper analyzed the influence of mining depth, coal seam dip, mining height and face length on depth of floor water-conductive fissure zone.
综合分析了开采深度、煤层倾角、煤层开采厚度、工作面斜长等地质采矿条件对底板采动导水破坏带深度的影响。
It is necessary to research into the burst failure and rock burst tendency of combined sample which is made up of roof, coal and floor.
研究顶板-煤体-底板所构成的组合煤岩体试样变形破裂规律及冲击倾向性对于预测冲击矿压具有非常重要的实践意义。
This paper puts forward support plan through analyzing strata behavior regularity of coal roadway in seam with soft roof, soft coal and soft floor.
文章通过对永华煤矿“三软煤层”煤巷矿压规律进行分析，提出了支护方案。
It expounds various mining methods and steps, including the bench demarcated, plan mining bench top and bottom floor, the coal and overburden amount of plan mining, and coal quality indicators.
阐述编制露天矿的各种开采计划的方法和步骤，以及其台阶划分、计划台阶顶底板的控制、编制剥离量和采矿量及其煤质指标等；
The ground floor there are oil, natural gas, coal, geothermal, limestone, dolomite, hard iron bauxite and other mineral resources, rich reserves, the exploitation of high value.
地下蕴藏着石油、天然气、煤炭、地热、石灰岩、白云石、硬铁矾土等矿产资源，储量丰富，具有较高的开采价值。
This paper introduces the floor detection at 103 working face in Wolonghu Coal Mine by the parallel electrical survey system.
介绍应用并行电法采集系统，在卧龙湖矿井103工作面进行底板探测。
Put focal point on coal seam roof and floor engineering geological characters.
重点阐述了煤层顶底板工程地质特性；
In the meantime, from the basic viewpoints of rock fracture mechanics, an insight is made into the mechanism of floor heave water in coal mines.
同时，用岩石断裂力学的基本观点对煤矿底鼓水的机理进行了探索性研究。
The horizontal distance X between roadway and the edge of its upper pillar is an important parameter for roadway layout in floor strata and adjacent coal seams.
巷道与上部煤柱边缘之间的水平距离X，是底板岩巷和邻近煤层巷道布置的重要参数。
The horizontal distance X between roadway and the edge of its upper pillar is an important parameter for roadway layout in floor strata and adjacent coal seams.
巷道与上部煤柱边缘之间的水平距离X，是底板岩巷和邻近煤层巷道布置的重要参数。
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