Base on the back ground of Dafosi mine project, the key strata theory and cusp catastrophe theory was applied to analyze the mine water inrush mechanism from roof.
以大佛寺煤矿工程为背景，运用关键层理论与尖点突变理论分析了采场顶板透水的发生机理，认为基岩关键层突发性破断失稳是顶板突水的诱因。
Based on the key strata theory of the ground control and analyzing the condition of geology and mine in the shallow coal seam, the characteristic parameters of the key strata are educed.
基于岩层控制关键层理论，在分析浅埋煤层地质采矿等条件下，得出了浅埋煤层关键层的特征参数。
On the basis of key rock strata theory, transferring rock beam structure and the law of the overlying strata displacement and the surface subsidence theory, we deduced offset error formula.
以关键层理论、传递岩梁理论以及采场上覆岩层及地表移动规律理论为基础，推导出岩梁抗弯刚度的误差补偿公式。
He was responsible for the the recognition of geological strata, and the theory that successive layers of geological formations (strata) contained a fossil record of life in chronological order.
地层的发现以及连续的地质构造(地层)包含的化石记录了按时间顺序出现的生命的理论都有他的功劳。
Hence, strata control theory can be used in gas extraction and control of coal and gas outburst.
因此，可以利用岩层控制理论指导瓦斯抽采和预防煤与瓦斯突出的发生。
The strata in Devonian period of Shuangwang area was divided in detail, going by new mapping theory and method of the regional geological survey.
本文采用新的区调填图理论和方法，详细划分了双王地区的泥盆纪地层，论述了岩相古地理特征。
The strata in Devonian period of Shuangwang area was divided in detail, going by new mapping theory and method of the regional geological survey.
本文采用新的区调填图理论和方法，详细划分了双王地区的泥盆纪地层，论述了岩相古地理特征。
Under the guidance of key layer theory in strata control, the conditions of stiffness and strength for key layer are established by using elastic slab theory.
以岩层控制中的关键层理论为指导，应用弹性板理论建立了关键层的刚度条件和强度条件。
The theory of key strata in ground control provide a theory foundation for the green coal mining research.
岩层控制的关键层理论为绿色开采研究提供了一个理论平台。
Through studying the influence of piping water on strata temperature, a continuous line-heat-resource model is proposed by using the heat resource theory.
堤坝的管涌渗漏通道可看作是一个持续作用的线热源，通过研究管涌渗漏水对地层温度的影响，利用热源法的原理建立了管涌渗漏的持续线热源模型。
Based on the theory of rock mechanics and the principle of drifting, the author proposed the suspension arch method of drifting in unstable strata.
本文在总结先拱后墙平巷掘进经验的基础上，根据岩石力学理论和平巷掘进原理，提出了平巷掘进的悬拱法。
Fractal theory was used in this paper, and fractal feature of grain distribution of sandstone in coal-bearing strata in Permo Carboniferous System was studied.
应用分形的思路和方法研究了石炭-二叠系含煤地层砂岩粒度分布的分形特征。
The theory of anisotropic formations shows that the natural deviation deponds on anisotropic character. This paper describes the effect on the well path by anisotropic strata.
各向异性地层理论指出，地层的自然造斜能力是由地层的各向异性特性引起的。
The effect of the differential strata in half-space on the damping is analyzed by theory of wave scattering, and the practical calculation method is presented.
并由波的散射原理，分析了土层差异对半空间阻尼的影响效应，提出了工程实用计算方法。
Based on the key stratum theory, the structure characteristics and movement laws of overlying strata with different mining height are studied.
运用关键层理论研究了采场覆岩结构特征及运动规律。
Based on the model of mechanics, some functional formulae of strata and surface movement above longwall mining goaf are derived by using the displacement method of theory of elasticity.
本文在力学模型的基础上，利用弹性理论的位移函数法导出了长壁采煤法采空区上方岩层及地表移动的函数表达式，同时给出了岩层及地表最大移动值的计算公式。
The theory and control technology for migration of roof strata and surface subsidence caused by mining operation are a part of the study of natural calamity all over the world.
煤矿开采引起覆岩及地表沉陷的控制理论与技术研究是涉及全球性灾害学科的研究内容之一。
The late Paleozoic-early Mesozoic strata in the Western Kunlun-Karakorum area are main research object and the accreting orogenic theory is used for structural analysis in this paper.
本文系统研究了西昆仑-喀喇昆仑地区晚古生代-早中生代地层的岩石组合及其分布特征，结合所含的生物组合特征绘制了研究区泥盆纪、石炭纪、早中二叠世及三叠纪的岩相古地理略图。
The late Paleozoic-early Mesozoic strata in the Western Kunlun-Karakorum area are main research object and the accreting orogenic theory is used for structural analysis in this paper.
本文系统研究了西昆仑-喀喇昆仑地区晚古生代-早中生代地层的岩石组合及其分布特征，结合所含的生物组合特征绘制了研究区泥盆纪、石炭纪、早中二叠世及三叠纪的岩相古地理略图。
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