采空区

The above research results provide a solid basis for prediction and control of large-scale destabilization in the mine.

研究结果为6m厚煤层一次采全厚形成的大尺度采空区大范围失稳的预报与最终安全控制提供了定性和定量化依据。

Because of the influence of mining , the permeability of footwall strata varies obviously.

由于受采动的影响，煤层岩层的渗透能力会发生明显的变化，有时会导致承压水突入采空区。

To some extent, the paper is of instructive significance for the research, promotion and application of gas extraction technology in the goaf.

文章对采空区瓦斯抽采技术的研究和推广应用具有一定的指导意义。

Owing to the monotonic mapping of fuzzy structured element established the homeomorphic property between fuzzy number space and the family of standard bounded monotone function, so, we can transform the study of any properties in fuzzy number space to the corresponding one in the family of standard bounded monotone function, e.g.

本项目针对矿井下采空区岩石陷落形成的多孔隙介质空间的极度不规则性，建立一种以模糊值函数分析学为基础的、更接近于刻划采空区内气体流动实际状况的模糊微分方程及各种边值问题，进而得出解算复杂采场气体模糊渗流问题的数学方法。

Using upwind finite method with the technology of grapy display the artile, solves the leak air seepage and air movement diffusec equation and seepage dissipation equation of oxygen concentration variation process.

结合实例，用迎风有限元方法求解了回采采空区漏风渗流方程和氧气渗流耗散方程，从理论上说明采空区氧浓度分布的不均衡性。

Also the mechanism about the top even angle gas" effusing is analyzed. The 3-D seepage equation of the wind flow in gob area is put forward on the basis of analyzing the mine"s wind flowing rule and the gob areas collapse mode.

随后分析了上隅角瓦斯涌出的机理，并在研究矿井风流流动规律和采空区垮落形态的基础上，提出了采空区内风流三维渗流方程。

By using of dynamic fuzzy group method, the top coal cavability was evaluated according to the following seven factors, such as coal seam strength, mining depth, crack developing extent's features, dirt band height, filling situation of goaf, classification of main roof and the ratio of mining and caving height etc.

运用动态模糊聚类方法，以煤层强度、赋存深度、节理裂隙发育程度、夹矸厚度、采空区充满程度、老顶级别、采放比等7个因素按模糊最大隶属度原则综合评价顶煤冒放性。建立了模糊聚分析方法的数学模型，以上述7个指标为基础，对顶煤冒放性的模糊聚类分析进行运算，给出分类的实施过程。潞安矿区顶煤冒放性分类结果表明， 5对主要生产矿井主采3号煤层，其顶煤冒放性皆为好和较好，经潞安矿区综放开采实践证实，分类合理

In the process of draining gas in gob area of a coal mine, the stability of surface drilling well and gas drainage effect were improved by studying different factors affecting the drainage effect and the term of service with the method of numerical simulation of computational fluid dynamics and field test.

在应用地面钻井抽采矿井采空区瓦斯的过程中，为了提高地面钻孔的稳定性及瓦斯抽采效果，采用CFD数值模拟和考察试验的方法研究了影响地面钻孔抽采效果和服务期限的不同因素。

Considering the current state of gas drainage in goafs of highly gassy mine in China, the "draining while mining" gas drainage method during open region movement behind working faces was emphasized to raise the resource recovery, decrease atmosphere pollution and implement gas control.

针对我国高瓦斯矿井采空区瓦斯抽放的现状，强调了在工作面后方&边采边抽&的开区移动瓦斯抽放方法，以提高资源回收减少大气污染与瓦斯治理的双重效益。

The paper introduces roof control methods of goaf of large mining height fully-mechanized face by artificial forced caving with deep-hole blasting at seam 14 of Silaogou Mine and analyzes the effect.

介绍大同煤矿集团公司四老沟矿14#层404盘区8402大采高综采工作面人工强制深孔爆破处理采空区顶板的技术，并对其效果进行了分析。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷