急倾斜开采

It is a new topic that rule of ground movement in steep coal seam mining, the overlying rock of steep coal seam mining have different homogeneousness in horizontal orientation. Its complexity make the research of this kind of problem process is very inadequate.

急倾斜煤层开采地表沉陷移动规律是地表沉陷研究领域中的一个新课题，急倾斜煤层由于开采上覆岩体在水平向的均质性不同，其复杂性更使这类问题的研究极不充分。

In the previous research, because mining subsidence"s inoculation and developing process is so complex that can"t touch, people give more attention on final result of rock damage; the overlying rock of steep coal seam mining have different homogeneousness in horizontal orientation. It"s complexity make the research of this kind of problem"s time process is very inadequate.

在以往的研究中，因开采沉陷的孕育和发展过程复杂而无法触及，人们将更多的注意力放在岩体破坏的最终结果；而急倾斜煤层开采上覆岩体在水平向的均质性不同，其复杂性更使这类时间过程的研究极不充分。

The feasibility,features,basic principles,craft diagram, key technology and application condition are analyzed and the prevention measures of gas,coal spontaneous combustion and water irruption in gob are also introduced.

介绍了一种在急倾斜厚及中厚煤层中开采的新型采煤方法———掩护支架架后放煤采煤法，并对其可行性、过程、基本原理、工艺流程、技术关键以及适用条件等进行了分析；介绍了瓦斯管理、防治煤层自然发火及老采空区防水措施，该法技术可行、安全可靠、技术经济指标先进，可推广应用。

In the mining of steep dip and narrow vein in Hong-Hua-Gou Gold Mine of Chifeng City by using dry back-filling method, the continuous stoping of multi-block was conducted after the division of stopes according to the occurrence regularity of orebody and specific condition.

赤峰红花沟金矿在用干式充填采矿法开采急倾斜薄矿脉时，根据矿体赋存规律，因地制宜地划分采场，对多矿块进行了连练回采，取得了较好的效果。

The paper discusses surface movement and deformation caused by strip mining with the technique of combining theoretic analysis、 equivalent material simulation and computation.

本文采用理论分析、相似材料模拟实验和数值计算相结合的技术路线，讨论了急倾斜煤层条带开采引起的地表沉陷问题。

At last, taking Xu Gang Mine as an example, the rule of surface movement and deformation caused by strip mining can be gained by computing.

最后以萧县许岗煤矿为例，通过程序计算，得出了该矿急倾斜煤层条带开采地表移动与变形规律。

Because the direct roof of the No.92 ore-body is the backfilling of the No.91orebody which is the cementing materials or non-cementing materials, and there are no-filled mined-areas in someplace. So there are large-scale hidden troubles on the top of the No.92 slowly inclined large and thick ore-body, then we must find a new mining technology which aims at the complex mining condition of the No.92 ore-body. The cutting nature of the No.92 ore-body is very poor, so choosing the rational drilling and blasting parameters and enhancing the overall technological economic benefits are also the urgent problems waiting to be solved in the exploitation of the No.92 ore-body. The No.92 ore-body, thin lodes and the exploitation process of the No.91orebody influence each other, the geo-pressure phenomena aggravates obviously in case of the mined-areas increase constantly, and the geo-pressure problem will be more and more serious when the No.92 ore-body be exploited on a large scale in the next step.

由于它的直接顶板就是开采91号矿体时的胶结或者非胶结的空区充填体，部分地段甚至是未充填的采空区，使92号缓倾斜厚大矿体的上部形成大范围的隐患区，因此，必须针对92号矿体复杂的开采技术条件，寻找新的采矿技术与工艺。92号矿体的可凿性极差，选择合理的凿岩爆破参数，提高凿岩爆破工作的总体技术经济效益，也是92号矿体开采急待解决的问题。92号矿体与细脉带、91号矿体开采相互影响，目前在采空区不断增大的情况下地压显现有明显加剧的趋势，在下一步92号矿体大规模开采时，地压问题将越来越严重。

The method of top coal caving in roadways is a new mining technology in steep seam s.

巷道放顶煤法是改革急倾斜煤层开采技术的1种新采煤方法。

In order to study basic roof's destruction movement that affects working face in horizontal section top coal caving in mining steep seams, this paper analyses tension of roof using elastic and thin board theory and concludes criterion of roof destruction based on long and narrow thin board.

摘要为研究急斜煤层水平分段放顶煤开采过程中基本顶破坏活动对工作面的影响，根据急斜煤层基本顶具有倾斜狭长板的特点，运用弹性薄板理论对基本顶岩层进行了拉应力分析，得出了顶板破断的判别准则，建立了基本顶初次破断后形成的&铰接结构&的力学模型。

Such as adaptation to the hard seam roof conditions resistance to a strong frame, adapted to the big mining thick coal seam mining height and caving hydraulic support, adapted to thin seam mining and steep seam mining and other special stent.

如适应于坚硬煤层顶板条件的商阻力强力支架，适应于厚煤层开采的大采高和放顶煤液压支架，适应于薄煤层开采和急倾斜煤层开采的特种支架等。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。