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without pillar
相关语句
  无煤柱
     Technology of mining without pillar for level entry in much thicker inclined coal seam
     浅谈特厚易燃煤层水平布置巷道无煤柱开采技术
短句来源
     Repair of roadway without pillar mining.
     无煤柱开采其巷道的维护
短句来源
     Mining Technology without Pillar in Raise Direction of Close and Overlapping Inclined Coal Seams
     上山近距离压覆倾斜煤层无煤柱开采技术
短句来源
     According to the theory of subsidence prediction by probability integral method, the feasibility of the strip mining method without pillar, the coal mining method of filled up with waste rock and the strip mining method with pillar were analyzed in this paper.
     本文根据概率积分法预计地表沉降的理论 ,分析了无煤柱条带开采法、矸石充填法和煤柱条带开采法开采某镇建筑物下压煤的可行性。
短句来源
  “without pillar”译为未确定词的双语例句
     According to the thin shell theory,using large common finite element ANSYS software,the stress and deformation of Wiggins gasholder under static loads are calculated with parameterization modeling method,compared with the stress calculation result of the gasholder without pillar structure.
     根据薄壳理论,应用大型通用有限元ANSYS软件,采用参数化建模的方法对威金斯储气罐在静力荷载作用下的应力和变形进行计算,并与无立柱结构形式储气罐的应力计算结果进行比较。
短句来源
     The direct exchange of active components with clay to form hydroxy-aluminium crogslinked montmorillonite without pillar damage is possible, which is characterized by XRD, IR and activity evaluation.
     在对相应产物的XRD、IR测定以及活性评定的基础上,提出了一种把活性组分引入羟基铝交联蒙脱土的有效方法——直接交换法。
短句来源
     and to adopt colored metal arch with ripple in workshop without pillar in 25 m.
     车间25m跨度内不设柱子,采用彩色金属拱形波汶屋面.
短句来源
  相似匹配句对
     Repair of roadway without pillar mining.
     无煤柱开采其巷道的维护
短句来源
     Improvement of sublevel caving without sill pillar
     无底柱分段崩落法的改进
短句来源
     , without network.
     我们在这里主要研究的是网络安全监控系统。
短句来源
     Travel Without
     第六代选择 没有风景的旅行
短句来源
     Pave Pillar
     (宝石柱)
短句来源
查询“without pillar”译词为用户自定义的双语例句

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In this paper, we give one example for shing that: there exists a complete Boolean lattice without pillar.

本文证明了备Boole格可以是没有支柱的。

The preparation conditions of polyhydroxy-aluminium cations were Studied and some Specially prepared samples were found of higher reactivity. The direct exchange of active components with clay to form hydroxy-aluminium crogslinked montmorillonite without pillar damage is possible, which is characterized by XRD, IR and activity evaluation. The hydroxy-aluminium pillared clay zeolite prepared by this way gives high catalytic activity and Selectivity for 1-hexene cracking. The catalytic activity is enhanced...

The preparation conditions of polyhydroxy-aluminium cations were Studied and some Specially prepared samples were found of higher reactivity. The direct exchange of active components with clay to form hydroxy-aluminium crogslinked montmorillonite without pillar damage is possible, which is characterized by XRD, IR and activity evaluation. The hydroxy-aluminium pillared clay zeolite prepared by this way gives high catalytic activity and Selectivity for 1-hexene cracking. The catalytic activity is enhanced after further exchange with La3 + or NH4+ ion. The cracking and isomerization of 1-hexene take place competitively. High temperature favors the Clacking of 1-hexene, so the propene content in the products increases with increasing the temperature, and at 500℃ propene becomes the main cracking product. At lower temperature, isomerization of 1-hexene predominates.

通过改进羟基铝的形成条件,制备出活性较高的羟基铝。在对相应产物的XRD、IR测定以及活性评定的基础上,提出了一种把活性组分引入羟基铝交联蒙脱土的有效方法——直接交换法。用该法制备的羟基铝交联蒙脱土对己烯-1的催化裂化反应具有较高的活性及选择性。引入活性组分La~(3+)、NH_4~+后,其活性更好,且呈规律性的变化。

In No. 2 Mining Area of Jinchuan Nickel Mine, mining operation has been down to deeper position, and undercut-and-fill stoping method is used. In the original design, there were a series of separating pillars which werc 20m wide and spaced at 80m along the orebody's strike. Due to inefficlency and difficulty ofmining excavation according to this design, an alternative design without pillars is suggested. This paper usesnonlinear FEM modeling to study stability status of stoping areas. Through systcmatical...

In No. 2 Mining Area of Jinchuan Nickel Mine, mining operation has been down to deeper position, and undercut-and-fill stoping method is used. In the original design, there were a series of separating pillars which werc 20m wide and spaced at 80m along the orebody's strike. Due to inefficlency and difficulty ofmining excavation according to this design, an alternative design without pillars is suggested. This paper usesnonlinear FEM modeling to study stability status of stoping areas. Through systcmatical comparison of stress,displacement and plastic zones in surrounding rock of the stoping areas, it is proved that the mining methodwithout pillars is reasonable and feasible. The analysis results provide a scientific basis for optimization of miningdesign.

金川二矿区已进入深部开采。在采用下向胶结充填法的条件下,能不能实现无矿柱连续回采,对矿山的产量和效益影响极大。本文使用非线性有限元对预留间隔矿柱和不预留间隔矿柱两种方案的围岩应力、位移和塑性区分布以及采场的稳定性状态进行了系统的分析和比较,论证了二矿区深部实施无矿柱连续回采的合理性和可行性,为二矿区深部采矿设计优化提供了依据。

 
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