煤层顶板岩性特征是影响瓦斯含量产生局部变化的因素之一。
Lithological characteristics of the seam roof are one of factors, which lead gas content to change partially.
结果表明，封闭性李庄断层、煤层分岔、砂岩顶板是该矿瓦斯突出的敏感地质指标。
The result indicated that close Lizhuang fault, coal fork, and sandstone top board was sensitive geology factor influencing gas outburst of the mine.
工作面煤样和顶板冲击倾向性测试结果表明，该煤层属于高冲击倾向性煤层，具有发生冲击矿压的能力。
The testing results of working face coal samples and roof impact tendency indicated that the coal seam belongs to high impact tendency and has pressure bumping possibility.
浅埋煤层薄基岩厚砂土松散层顶板动压灾害和采动水土流失是神东矿区急需解决的重大问题之一。
The vital problems to be solved in Shendong mine are the dynamic pressure damage of thin rock strata roof under thick sandy soil soft stratum and the loss of water and soil under mining.
根据地质构造因素控制煤层顶板稳定性作用的研究，提出煤层顶板稳定性预测评价的矿井地质构造特征解析方法。
Based on the research result of control action of structure to the stability of roof, the author puts out tectonic synthesis method for predicting the stability of roof.
顶板管理是石门揭露突出煤层过程中的管理重点。
Roof control is key management of opening up coal seam with potential outburst in crosscut.
前言：通过对“三软”不稳定煤层采煤工作面瓦斯来源的分析，介绍了采用顶板岩石钻孔抽放解决瓦斯问题的原理和方法。
Based on the analysis of gas source at the working face with "three-soft" unsteady coal seam, the authors introduce the principle and method of gas suction by roof-rock drilling.
得出了煤层倾角、水平分段高度对顶板变形的影响关系曲线，同时，给出了顶板破断的判据。
Relationship curves between seam dip Angle, horizontal section height and roof deformation are derived, at the seam time, the criterion of failure is given in this paper.
通过现场实测，得出了对浅埋煤层高产高效工作面顶板来压特征和不同推进速度的矿压显现规律。
The field investigations show that ground pressure of coal face with high productivity depends on face advance rate.
本文的所得结论对分析浅埋煤层的强烈滑落失稳机理、进一步研究采场“支架—围岩”关系、建立浅埋煤层动态顶板结构理论具有重要的理论意义。
It has important theory meaning of this research to analyze the mechanism of sliding instability, study the relation of "support -rock" and establish dynamic roof structure theory.
煤层开采所引发的上覆岩层导水断裂带高度的计算方法是矿井顶板水害防治中的重要研究课题之一。
It is one of the important research projects in the field of controlling water-inrush from roof that the calculating method of water flowing fracture height caused by coal mining.
针对节理对煤矿生产的影响。本文提出一种预测煤层及其顶板节理频率的新方法。
To counter the effects of joints on the production of coal mine, the paper advances a new method to forecast the frequency of joints in coal bed and its roof.
首先利用相似模拟实验研究了急斜特厚煤层顶煤的冒落特征、顶板的破坏规律，以及地表下沉的特点。
First, based on similar material model test, top coal cave-in characters in steep and thick seam were studied as well as failure law of main roof and features of surface subsiding.
大跨度复合泥岩顶板煤层巷道是围岩变形剧烈且顶板易冒落、极难维护的巷道。
The coal seam tunnel of compound mudstone roof of large span is the tunnel that is violent out of shape, roof is easy falling and safeguard is very difficult.
通过对刘桥矿区6煤层顶板岩层的岩性和岩性组合结构的分析，确定了不同区域的稳定性情况。
Through analysis of lithologic character and composite structure of roof rock of No. 6 coal layer in Liuqiao Coal Mine, the stability of roof rock in different zones are assessed.
煤层顶板的稳定性是影响煤层回采工作安全最重要因素之一。
The stability of seam roof is one of the most important factors that influences the safety of coal extraction.
提出了用“煤层一顶板相关原理”研究预测煤层冲刷带的方法。
The method of coal bed-roof interrelated theory has been first used to study and predict coal bed washout in this paper .
煤层顶板的稳定性是影响煤层回采工作安全最重要因素之一。
The stability of seam roof is one of the most important case that influences the safety of coal extraction.
该评价结果有助于在煤矿开采过程中加强不同区域煤层顶板的管理及科学地指导工作。
The assessment is helpful for improving monitoring and control of roof rock stability during coal exploitation.
研究了大同燕子山煤层顶板岩石的显微空隙、粒度分布的分形特征及其与岩石强度的关系。
The microscopic statistical analyses and the mechanical tests show that the rock microvoid and grains distribution are all fractal in nature, and can be expressed by their fractal dimensions.
阐述了哈拉沟煤矿主采煤层顶板的赋存特征，以现场监测、现场调研为手段，分析了煤层开采、护巷煤柱尺寸及地下水对煤巷顶板稳定性的影响，为今后煤巷顶板稳定性分类及合理支护提供依据。
By taking the on-site monitoring and research as a tool, the influence of coal mining, coal pillar size and underwater on the roof stability of coal roadways is analyzed.
实践应用表明，C4煤层复合顶板得到了有效的控制，解决了复合顶板条件下回采工作面的顶板控制问题。
The practices showed that the complex roof of C4 seam was effectively controlled. Therefore the roof control problem of the coal mining face under the complex roof conditions was solved.
根据大倾角煤层采场矿压显现特点，对采场顶板岩层的运动、破坏形式进行了研究。
Based on the strata behaviors of steep coal seams, the forms of roof breakage and movement were studied.
吕家坨井田西翼部分区域八煤层顶板由正常的粉砂岩变为粗中砂岩，并有煤层变薄现象。
In the part of west flank of Lujiatuo minefield, the normal siltstone roof of coal seam 8 changed into coarse to medium-grained sandstone, and also had phenomenon of coal seam pinch-out.
通过对岱庄煤矿4300采区工作面的顶板结构分析，得出了上部极近距离煤层开采后，下部煤层顶板形成极易漏冒的“块体-散体-梁”结构。
Coalface of Daizhuang Coalmine, the authors believe that the roof in lower seam will form the "block-bulk-beam" structure easy to fall after the mining of top ultra-close seam.
河南登封煤田郜城井田二1煤层顶板为滑动构造形成的构造岩。
The roof of the 2 1 coal seam in Gaocheng area of Dengfeng Coal Field is constitute of tectonite rock formed by gliding.
研究预测的结果与实际采掘揭露的冲刷现象极为一致，说明只要有足够的有关煤层顶板岩性的资料，运用煤层一顶板相关原理的方法研究预测煤层冲刷可以达到简单、准确、定量的目的。
The achievement is consistent with the washout exposed by imining. It shows that the coal bed-roof interrelated theory is a simple, accurate and quantitative method which is used to study and…
研究预测的结果与实际采掘揭露的冲刷现象极为一致，说明只要有足够的有关煤层顶板岩性的资料，运用煤层一顶板相关原理的方法研究预测煤层冲刷可以达到简单、准确、定量的目的。
The achievement is consistent with the washout exposed by imining. It shows that the coal bed-roof interrelated theory is a simple, accurate and quantitative method which is used to study and…
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