助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   mining depth 的翻译结果: 查询用时:0.193秒
图标索引 在分类学科中查询
所有学科
矿业工程
安全科学与灾害防治
地质学
更多类别查询

图标索引 历史查询
 

mining depth
相关语句
  开采深度
     The distributing rule of the third mine section ground stress value: while the mining depth is less than 780m, the level maximum principal stress is 15~19MPa, moreover the coal bed motherboard is bigger than roof, but around the fault the size and orientation of ground stress change a lot;
     三采区地应力值大小的分布规律:在开采深度小于780m时,水平最大主应力为15~19MPa,且煤层底板比顶板大一些,但断层附近地应力大小和方向变化较大;
短句来源
     while the mining depth is more than 780m, the normal principal stress is more than level maximum principal stress.
     在开采深度大于780m时,垂直主应力大于水平方向最大主应力。
短句来源
     while the mining depth is 780m about, the normal principal stress almost amount the level maximum principal stress;
     在开采深度达到780m左右时,垂直主应力近似等于水平最大主应力;
短句来源
     The Amount of Deformation of Roadway and Mining Depth
     巷道围岩变形量与开采深度的关系
短句来源
     With the increase of mining depth in mine, the instability mechanics and control technology in deep mining and high pressure, soft rock, big deformation roadway are still crucial in underground engineering.
     随着矿井开采深度的不断增加,深井高地压、软岩、大变形巷道的失稳机理及控制技术仍然是地下开采的关键问题。
短句来源
更多       
  采深
     Discussion on ZY5000 - 25/50 type support deep mining depth butt technology
     ZY5000-25/50型支架大采深对接工艺的探讨
短句来源
     Phased Analysis of Large Mining Depth Rock Mass Movement Observation
     大采深岩移观测阶段性分析
短句来源
     if the mining depth H≥300m, the strip line method with safety coefficient 1.8-2.0 should be used;
     若采深较大,可采用安全系数为1.8~2.0的滑移线法;
短句来源
     On the guantitative analysis to study the related parameters of roof consolidated by water injection in high seam and to simulate the regenerated roof in mining field with strength experiment of rock mechanics in house, the law among the cohesive strength, angle of internal friction, water ratio of the regenerated roof, the mining depth and other factors is obtained, and are determined the telated parameters,such as water injection height, water volume and thickness of consolidated roof.
     基于定量分析研究厚煤层注水固结顶板的相关参数,以室内岩石力学强度试验模拟采场顶板再生情况,从而得出再生顶板的粘聚力、内摩擦角,含水率、采深及其它因素相互之间的规律,确定了注水高度、注水量及固结顶板厚度等有关参数。
短句来源
     The thesis analyzes the effect of the increase of mining depth on the floor heave, discusses the laws that gravity stress, tectonic stress, the strength of surrounding rock, terrestrial heat and imbibition water change with the increase of mining depth.
     分析了采深对巷道底鼓的影响,以及自重应力、构造应力、围岩强度、地温、水随开采深度变化的规律。
短句来源
更多       
  “mining depth”译为未确定词的双语例句
     The influence of mining depth to country rock stability of roadway intersections
     埋深对巷道交岔点围岩稳定性的影响
短句来源
     When mining depth is z_0, the surface subsidence unit basin expression is,The methods for calculating surface subsidence in semi-infinite and finite mining conditions are given.
     给出了采深为z_0时地表下沉单元盆地表达式为并以此给出了半无限开采和有限开采条件下地表下沉的计算方法。
短句来源
     The constant parameters of prediction model of mining subsidence for the 3_下 coal seam were solved by coupling the survey results of actual mining subsidence of two working faces with different mining depth and face length.
     利用不同深度、不同工作面长度的两个工作面的开采沉陷实测结果耦合,解决了济三煤矿3下煤层开采沉陷预测模型中有关“常数”的确定问题。
短句来源
     With the increase of mining depth and augmentation of gold requiring quantity by civil economy, it's more and more needed to exploit secure high-efficient mining methods.
     虽然在迄今为止的采矿方法理论研究与矿山生产实践中,对岩金矿床高效开采领域进行了许多研究,但一直忽视了无底柱分段崩落法,使这一安全高效采矿方法未能在岩金矿床得到实际应用。
短句来源
     In recent years, with the lengthways development of mining depth on coal seam, the geological condition is more and more complexity, and the problem of mining gas is more serious.
     近年来,随着煤层开采向纵向深度逐步发展,煤矿地质条件越趋复杂,矿井瓦斯问题日益严重。
短句来源
更多       
查询“mining depth”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  mining depth
The height of the fractured zone decreases as the size of the outcrop pillar or mining depth decreases.
      
Below a mining depth of 300-500?m, this type passes over a short distance downwards into stibnite-poor gold-bearing veins.
      
With ramp and shaft entry, a main shop is required underground when the mean mining depth reaches 500m below surface.
      
With ramp entry, a satellite shop is required when the mean mining depth reaches 200m below surface.
      
This information will help with determining mining depth at the wetland site.
      


Ground control problems in subievel caving become evident as the rock pressure increases with depth. Recently, a finite element analysis of the stability problems of the sublevel caving method was completed by the authors. This paper summarizes the results of stress analysis in sublevel extraction drifts under different stress field conditions by using linear elastic and nonlinear elasto-plastic finite element modeling techniques. A critical stress concentration will occur in the uppermost sublevel drifts beneath...

Ground control problems in subievel caving become evident as the rock pressure increases with depth. Recently, a finite element analysis of the stability problems of the sublevel caving method was completed by the authors. This paper summarizes the results of stress analysis in sublevel extraction drifts under different stress field conditions by using linear elastic and nonlinear elasto-plastic finite element modeling techniques. A critical stress concentration will occur in the uppermost sublevel drifts beneath the caved area or blasted ore area. During the blasting and drawing cycle, a tensile and shear failure condition could develop in the central extraction drift when it would be mined last. Under a high horizontal stress field condition, almost all tensile stress in the back of the extraction drifts will be eliminated and only slight yield can be seen in the floor of the extraction drifts. Compared to the cases under the gravitational stress field condition, the total yielding zone will be grtly reduced because of the increase of horizontal confining stress with depth. However, it is predicted that the centre of each ore column side will experience excessive shear stress that probably will result in ore failure.The two major conclusions drawn from this study to improve the overall stability of sublevel caving are: (1) the width of extraction drifts must be carefully controlled and an appropriate stoping sequence selected; and (2) the sublevel caving method can be used in deep mining if the pillar width is increased correspondingly with mining depth.

本文归纳了用线弹性和非线性的弹-塑性有限元法对于在不同应力场条件下的分段回采巷道的应力分析的结果。从分析中发现,在废石已崩落的分段水平或崩矿的分段水平下面的分段回采巷道将出现临界应力集中。在爆破和放矿的循环中,如果中央回采巷道开采滞后时,将在该进路巷道出现拉伸和剪切破坏。在水平应力场条件下,回采巷道顶板的所有拉伸破坏都不再出现,只有在回采巷道底板上将出现轻微的屈服。与在重力应力场下的分析结果互相比较,当水平应力随着深度增加以后,在分段回采巷道附近的屈服破坏带将会大大变小。然而,预料将有另一种破坏出现,这就是在矿石柱体的测面的中部可能出现过分大的剪应力而导致的剪切破坏。从分段崩落法稳定性的研究中,可以得出两个主要结论:(1)回采巷道的宽度必须仔细地控制在一定的范围内,并且要选择好恰当地回采顺序;(2)分段崩落法可以用于开采深部矿体,如果将矿柱宽度随开采深度而作相应的增加的话。

In this paper the finite element method is used to analyze the effect of supporting parameters(including the elastic modulus of the fallen rock in the goaf, the setting load and rigidity of support) and the mining depth on roof behaviour in longwall face. The study indicates that elastic modulus of the fallen rock in the goaf, the rigidity and setting load of support are the major factors that affect roof behaviour. The optimal parameters of the hydraulic supports and the approaches for improving roof...

In this paper the finite element method is used to analyze the effect of supporting parameters(including the elastic modulus of the fallen rock in the goaf, the setting load and rigidity of support) and the mining depth on roof behaviour in longwall face. The study indicates that elastic modulus of the fallen rock in the goaf, the rigidity and setting load of support are the major factors that affect roof behaviour. The optimal parameters of the hydraulic supports and the approaches for improving roof control are also involved. It is pointed out that stress concentration in front roof is the main factor causing the roof failure. It is suggested that support with high rigidity. and adequate setting force and low rate of opening of relief valves in the long-wall face could improve the roof condition.

本文用平面有限元法计算分析长壁工作面顶板动态(应力、位移)与支撑参数(采空区冒落矸石弹性模数、支架初阻力与刚度等)及开采深度的关系。研究表明,采空区矸石弹性模数、支架刚度及初阻力是影响顶板动态的主要因素。提出顶板控制的改善途径及支架合理参数的选择依据。指出端面顶板应力集中是机道上方顶板破坏的基本原因;液压支架应有较高的刚度、较低的工作面支架安全阀开启率。

in the future with the increase of the mining depth the surface land will be mostly in the sub-critical conditions. Under such conditions, it is inevitable that the value of movement angle obtained by surface observations for calculating safety pillars is too small, and of no importance. Based on probability integration method and the data obtained from rock movement observations, the paper has made a mathematic deduction, and a formula for claculating the movement angle values at any conditions is given....

in the future with the increase of the mining depth the surface land will be mostly in the sub-critical conditions. Under such conditions, it is inevitable that the value of movement angle obtained by surface observations for calculating safety pillars is too small, and of no importance. Based on probability integration method and the data obtained from rock movement observations, the paper has made a mathematic deduction, and a formula for claculating the movement angle values at any conditions is given. And it is changed into an expression for calculating the movement angle under critical condition, which is of practical meaning.For the ease of calculation, corresponding graphs are plotted which are fit to the measured data.

该文应用岩层移动随机介值理论和概率积分法,推得任意采动程度移动角值的计算公式,对留设煤柱时有实用意义。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关mining depth的内容
在知识搜索中查有关mining depth的内容
在数字搜索中查有关mining depth的内容
在概念知识元中查有关mining depth的内容
在学术趋势中查有关mining depth的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社