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goafs相关的网络例句

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与 goafs 相关的网络例句 [注:此内容来源于网络,仅供参考]

The stability of the goafs of Liangshi gypsum deposit is mainly influenced by the small thickness,water-absorption and low strengths of compression and shear of the upper walls of the orebodies;and by the clearages and bedding ;as well as the undergraound water activity and irregular mining.

两市镇缓倾斜石膏矿床采空区稳定性的影响因素,主要有矿体顶板硬壳——青膏层的厚度薄,易吸水软化,抗压抗剪强度低;区内局部节理发育、层理密集;地下水活动以及开采不规范等。

It indicated that mining technique in the condition of floor failure used above Longwall Goafs in Baijiazhuang Mining is totally feasible.

这表明,挖掘技术条件下的地板上面使用失败的实验Baijiazhuang矿区采空区完全可行。

The ground deformation computing problem of goafs of highways is one of the difficult problems in highway construction, and until now there is no perfect computation methods to settle with.

采空区地面变形计算问题是一直困扰通过采空区高速公路建设的难题,之前尚无良好的理论计算方法。

A brief survey is given about the principles of structural design and lectotype of buildings on goafs, and related suggestions are presented for the walling construction measures.

阐述了采空区建筑结构设计与选型的原则,并就墙体构造措施提出了有关建议。

Targeting at the coal seam with useful value discarded above goafs, attempted to explore the feasibility of "mining technique in the condition of floor failure" from theoretical point of view, and predicted.

针对在废弃煤层采空区上方和实用价值,试图探讨&挖掘技术的可行性条件下的地板上失败&理论的观点,并预测。

Combined with in-situ cases, the seepage flow patterns of air leakage in goafs with complicated shapes are described, and an accurate graph distribution solution of flow pattern is given.

结合现场实例,从宏观上描绘了复杂几何形状采空区的漏风流态(风压分布等值线和流函数线),给出更准确的流态图形分布解。

A high amount of time is spent on the reliability evaluation of buildings above goafs for its complex and multidisciplinary influencing factors. Consequently how to evaluate the required buildings rapidly and exactly is an important theme.

由于采动区建筑物的可靠性评估涉及多个学科,影响因素复杂、评估所需时间长、受主观因素影响大,如何对在役建筑物可靠性进行快速、准确的评估是一个的重要课题。

Prospecting metal mine goafs by Rayleigh wave method is introduced.

介绍用瑞雷波法检测金属矿山采空区。

The computation model had 5 parameters, which could be identified by displacement inverse algorithm. At the same time, the ground deformation limits of highways to determine the engineering treatment scope of goafs were provided. On such a basis, the problem could be solved. Finally, a case of Lei-Yi highway was given. The computed results showed that the present method could successfully solve the ground deformation problems of goafs.

用编制的计算程序对来宜高速公路下覆典型的两种采煤形成的采空区坍塌后地面变形进行了计算分析,计算分析结果表明:随机介质理论计算模型应用比较成功,能反映地面移动规律;该处采空区对高速公路的正常使用产生威胁,宜进行适当的工程处理,并确定了工程处理范围。

In orde to obtain system optimization in high efficiency production and operation safety, the microcosmic problem of goaf treatment was brought into the creative design of mining method and the synergism of two problems was studied. Firstly, in view of the occurrence characteristics and mining conditions of catacalstic ore section of orebody No. 105 in Gaofeng mine in Guangxi province, considering the adaptability to different scale goafs in the ore section, based on mining environment reconstructing idea and continuous mining mode, a new mining method (mining environment reconstructing non-pillar sublevel-strip continuous mining method) was put forward. Then, some repr, esentative goafs were selected and their stabilities were calculated by discrete element method on the basis of differences of goaf scale, surrounding conditions and situ stress field. At last, the mining layout was adjusted on the basis of goafs stability analysis and the goafs were adjusted as a part of cutting engineering, blasting space or stope, so as to determine all kinds of goafs treatment schemes.

摘 要:为在生产高效和作业安全上取得系统整体最优,将碎裂矿段的空区处理微观问题纳入采矿方法创新设计宏观问题中,开展2种问题的协同研究:首先,针对广西高峰矿105号矿体碎裂矿段的赋存特点和开采技术条件,考虑对各种规模空区适应性,基于采矿环境再造和连续采矿理论,提出采矿环境再造无底柱分段分条连续采矿法;然后,根据采空区规模、围岩状况和原岩应力场等条件的差异,在所有采空区中选择具有代表性的空区,运用离散元程序对其稳定性进行计算分析;最后,在稳定性分析的基础上,灵活调整开采布局,将采空区调整为部分切割工程、自由爆破空间或采场,从而确定出各种规模空区的处理方案。

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