金属矿地下开采过程中，采场顶板稳定是矿山正常、高效回采的前提。
During the process of underground mining, the stabilization of stope roof is the basement of normal and productive mining.
岩石较少有直接拉伸破坏，在巷道和采场顶板中，弯曲变形是重要的变形模式。
The bending deformation was a kind of important deformation mode in the tunnels and roofs of coal mines because direct tensile failure of rock seldom happened.
而采场顶板冒落机理复杂、影响因素多，若缺乏严格的控顶措施，会带来严重危害。
But the declination mechanisms are complex and be many influence factors. It results in serious jeopardize from being lack of strict control measures.
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.
由于胶结充填体作为采场顶板，故胶结体的稳定性研究是矿山生产技术的一项关键工作。
Since the cemented backfill body is to be the top tray, so the research of cemented stability should be the key point of mining production technology.
应用表明，采场顶板长锚索预锚固技术施工安全，成本低，支护效果好，值得推广应用。
The application of this technique shows that it is well worth developing because of its safe construction, low cost and good supporting effects.
运用相似模拟和理论分析相结合的方法，揭示了采场顶板初次破断机理，确定了有关参数。
Based on simulating model test and theoretical analysis, the mechanism of main roof first breaking is revealed, and the asymmetry breaking parameter is determined.
将采场顶板简化为岩梁模型，岩梁的最大拉应力及其极限跨距是采矿工程涉及到的两个重要参数。
The roof in working areas is simplified as rock beam, the maximum tensile stress and limited span of rock beam are important in mining engineering.
现场实践证明，采场顶板发生冒落、矿柱出现开裂或片帮等现象急剧减少，采场整体稳定性得到显著提高。
It is proved that the occurrence of roof caving and ore pillar fracturing is rapidly decreased, and the whole safety of mining stop is significantly improved.
数值模拟结果显示上覆岩层的移动是非线性的，上覆岩层的沉降位移随着距离采场顶板的高度增大而减小。
The numerical results show that the displacement of the overlying strata is nonlinear, and it gets smaller with the increase of the roof height.
优化采场顶板暴露面积形状是控制地压的重要手段之一，采用长条形顶板暴露面，能提高采场生产能力和保证回采的安全性。
The roof shape optimization is one of the important means to control the ground pressure. A long strip of exposed roof surface shape can improve productivity of the stope and ensure mining safety.
上向孔侧向崩矿爆炸应力波对采场项板的破坏比水平落矿爆炸应力波对采场顶板的破坏要小，从而使撬毛工作量减少了58.3％。
The destroy of the roof produced by stress wave of upward hole side blasting is less than that of the level hole blasting. The work of prizing flexible rock decreased by 58. 3%.
针对长壁工作面顶板垮落具有局部、分段、迁移的时空特征，将长壁工作面采场顶板划分成若干个相互铰接的薄板，建立了薄板组力学模型。
Based on the local, migratory and subsection characteristics of main roof fall of longwall face, the main roof was divided into some plate group, and plate group mechanical model was established.
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。
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.
微地震监测技术对确定采场覆岩“两带”高度、预报采场顶板破坏、预测煤与瓦斯突出，从而预防灾害发生、保证煤矿安全生产并提高资源回采率等具有重要意义。
Microseismic monitoring technique is of important meaning for the safety of coal mine, the prediction of the period of mining pressure and the increase of recovery 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.
采场控顶设计是顶板管理的关键因素，而顶板岩层的运动规律是采场控顶设计的依据。
The roof control design in mined field is the key to roof control and the movement rule of roof terrane is the basis of the roof control design.
首次将顶煤的分类与直接顶、老顶的分类结果相结合，弥补了原有顶板分类方案不适合放顶煤采场的不足。
Combine top-coal classification with roof classification for the first time, which make up the inadequate of former classification program.
此外，厚松散层、地表采动程度、工作面推进速度、采煤方法与顶板管理方法、开采程序及时间因素等对采场覆岩空间结构均有一定影响。
Moreover, there are some other influencing factors such as: thick loose bed, surface mining degree, impel speed of working face, coal mining and roof manage methods, mining procedure and time.
得到结论：采场稳定性不仅与顶板暴露面大小有关，暴露面形状对其影响也是至关重要的。
Now a conclusion comes: the stability of stope not only has a relationship with the size of the exposed roof, but the exposed surface shape has a crucial influence on its stability.
说明在月亮田煤矿的具体条件下，所用的分析方法是合理的，对其他采场的顶板来压的预测也具有参考价值。
And calculations of the stress of the roof rock are made with numerical value analytic method. The conclusions tally with what are determinde in practice.
说明在月亮田煤矿的具体条件下，所用的分析方法是合理的，对其他采场的顶板来压的预测也具有参考价值。
And calculations of the stress of the roof rock are made with numerical value analytic method. The conclusions tally with what are determinde in practice.
应用推荐