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- The prerequisite of rock burst occurrence is that the elastic energy in coal and rock mass around coal mine roadway and stope has accumulated enough. 冲击地压发生的前提是矿山井巷和采场周围的煤岩体中储存了足够的弹性能。
- By similarity simulation experiment, we analysis the mining-induced fracture distribution and permeability of coal and rock mass near protective layer mined by speckle method. 阐述了含瓦斯煤的力学特性:通过相似模拟实验,用散斑法对保护层开采过程中来动裂隙分布规律及煤岩体的渗透性进行了分析。
- Coal and rock oil, or petroleum, are of great value as fuels. 煤和石油或汽油,作为燃料,价值极大。
- Finite Element Analysis for the Distribution of Elastic Specific Energy in Coal and Rock Mass 煤岩体中弹性比能分布的有限元计算分析
- Research of energy storing and gestation mechanism and forecasting of rockburst in the coal and rock mass 煤岩体中储存能量与冲击地压孕育机理及预测方法的研究
- coal and rock mass 煤岩体
- coal and rock mass strength 煤岩体强度
- A mass of snow and rock break away and fall on the climber. 一堆积雪和岩石突然崩落到登山者的身上。
- According to the index of bump proneness of coal and rock,weak bump proneness existed in . 煤岩冲击倾向性是煤岩的固有属性,是决定其产生冲击破坏的能力和发生冲击地压的必要条件。
- The test simulated truthfully ground deformation and rock mass movement at different mine level. 该试验逼真地模拟地下不同的开采水平引起的地表变形和围岩移动过程。
- EME of coal and rock is a kind of phenomenon during the deformation and fractur... 顶板稳定性异常区域电磁辐射脉冲数明显增多,可以应用电磁辐射技术非接触监测评价矿山顶板的稳定性。
- The numerical model of roof bolting and rock mass collaboration was based on Hoek Brown's strength criterion. 基于虎克-布朗强度准则给出了岩体及顶板锚固的数值模型。
- Under the explosive load,shotcrete and rock bolt support and integral lining structures are usually used for chambers in rock mass. 在爆炸荷载作用下,岩体洞室通常采用喷锚支护结构和整体被复结构。
- The damage speed of coal and rock is EME impulse, the release energy in an instant (EME amplitude value) and the deformation speed. 煤岩体的损伤速度与电磁辐射脉冲数成正比,与瞬间释放的能量(幅值)、变形速度成正比;
- Coal and oil are natural products. 煤和石油是天然物产。
- The weathering of rock are zoned in terms of the ratio of wave speed, integrality index of rock mass and rock quality index. 运用岩体波速比、岩体的完整性系数、岩石质量指标分别对岩体风化进行了分带;
- A mass of snow and rock broke away and fell on the climbers. 一堆积雪和岩石突然崩落到登山者的身上。
- A dispatching decision method that integrates the allocating goods-current of coal and rock with computer simulation is supplied. 提出了用“煤岩货流量分配”与计算机模拟相结合的一种调度决策方法。
- The geometrically combined relation of the syncline stucture with the pit controls the mechanical effect of the stuctural plane and rock mass structure. 向斜构造与采场的几何组合关系控制着结构面和岩体结构的力学效应。