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high mining
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  大采高
     Parameters determination and structure design of high mining height hydraulic support
     大采高强力液压支架的参数确定及结构设计
短句来源
     Parameters Determination of High Mining Height Hydraulic Support in Shangwan Coal Mine
     上湾煤矿大采高液压支架的参数确定
短句来源
     Study and Practice of High Output,High Efficiency and High Mining Height Longwall Mining Techniques
     高产高效大采高综采技术的研究与实践
短句来源
     Analysis of Optimization Design to High Mining Height Workface of Sihe Coal Mine
     对寺河矿大采高综采优化设计的分析
短句来源
     Analysis Adaptability and Stability of High Mining Height Support
     大采高支架的适应性与稳定性分析
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  高开采
     For example, when mining the manganese nodule which is of very high mining value and dispersed on the 5000m depth ocean floor, in order to reduce the effect of the mining ship on the lifting pipe, it is necessary to install a HCS between the lifting pipe and the mining ship to reduce the axial stress and deformation of the lifting pipe and avoid its fatigue damage.
     例如,当用水力流体提升式采矿系统开采分布在5000m左右深海海底具有很高开采价值的锰结核时,为减小海浪所引起的采矿船升沉运动对扬矿管的影响,有必要在扬矿管与采矿船之间安装一套升沉补偿系统,以减小扬矿管的轴向应力和变形,防止疲劳损坏。
短句来源
     According to the concrete features of Xiaoguanzhuang Iron Mine's ore body, the deep-midd1e deep ho1e sublevel-combined stoping with low preparation ratio and high mining intensity has been applied successfully in the first-ore seam mining.
     本文针对小官庄铁矿矿体赋存的具体特点,在首层开采中成功地采用了低采准比、高开采强度的深孔、中深孔并段回采技术。
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  “high mining”译为未确定词的双语例句
     Stress Transfer Technique of Controlling Chamber's Floor Heave Under High Mining Stress
     高应力硐室底鼓控制的应力转移技术
短句来源
     Determination of support parameters for mining gateway under high mining dynamic pressure
     大采深动态压力下回采巷道支护参数确定
短句来源
     According to the situation of mining and the faced problems in Huangfengling open pit, it was proposed to use in-situ leaching after explosion to recover uranium in order to overcome the difficulties with open mining of the deposit and high mining cost.
     根据我矿黄峰岭露天矿开采现状及面临的问题,拟改用原地爆破浸出采铀方法,以解决该矿床露天开采难和成本高的问题。
短句来源
     High mining tax has negative influence on investment to mining industry.
     1994年我国矿山企业税费负担突然加重了许多 ,主要原因 :一是由于产品税改成了增值税 ,二是由于资源税征收方式的改变。
短句来源
     According to the practice of the first phase output of 600,000t/a in Xinqiao Pyrite Mine and high mining costs,and the issues of optimum technical plan in first phase extend engineering,the measures of reducing production costs,and improving comprehensive utilization of mineral resource are provided in this paper.
     结合新桥硫铁矿一期坑采 6 0万t/a生产中存在的采矿成本高 ,一期延深工程需要进一步优化技术方案等问题 ,提出了如何通过加强技术管理降低生产成本 ,提高矿产资源综合利用的措施
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  high mining
Aerodynamic characteristics of currents in a high mining-out area confined by support pillars
      
High concentrations of metals are caused by the river contribution of sediments from areas with a high mining activity and from the industrial activity carried out on the estuary banks.
      


The conventional longwall mining system has been now widely adopted in underground mining of mildly dipping and thin orebodies with feeble immediate roofs in China and abroad, however, this method has defects inherent in its geomechanical properties. For instance, it suffers a comparatively higher mining cost due to large consumption of fine grade timber; moreover, the production output in tons per manshift decreases noticeably with the increase in roof pressure. With the view of overcoming...

The conventional longwall mining system has been now widely adopted in underground mining of mildly dipping and thin orebodies with feeble immediate roofs in China and abroad, however, this method has defects inherent in its geomechanical properties. For instance, it suffers a comparatively higher mining cost due to large consumption of fine grade timber; moreover, the production output in tons per manshift decreases noticeably with the increase in roof pressure. With the view of overcoming of these shortcomings, the author proposes a new conception of improvement in the filling in rooms and pillars method. A structural layout is shown to give clear idea of the methodology. Size of rooms and pillars is determined chiefly by roof characteristics. Roofs subjected to tremendous gravitational force require larger pillars with smaller rooms and vice versa. In mining process, ore is blasted and mucked out at first, then the immediate roof is shot off by retreating blast to fill the emptied rooms. Haulage of broken ore is performed by either scrapers or LHD machines depending on the dip inclination of the orebodies. Mechanical loaders are suitable to the dip less than 15°, while scrapers may be used for dip steeper than 15°. The advantages of the new method are: (1) no timber consumption, (2) higher productivity at lower cost, and (3) further improvement in ore recovery.

目前国内外一般将长壁崩落法应用于不稳直接顶板缓倾斜薄矿体。此法的缺点是:(1)由于要消耗大量的优质木材,促使矿石成本增高;(2)随着直接顶板压力增加,生产工效急剧下降。针对这一情况,笔者提出房柱分采充填法新方案的建议。直接顶板的特性影响着房柱尺寸。在此法中,一般直接顶板压力大,需要保留较小矿房和较大矿柱;相反,则可以加大矿房尺寸和缩小矿柱尺寸。在房柱中首先回采矿体,再后退崩落直接顶板,以充填空区。矿房内运搬一般根据矿体倾角不同,选用大型电耙或装载机;装载机适用于15°以下,大型电耙适用于15°以上。这种新方法的优点是:(1)不需坑木支护;(2)高产低耗;(3)矿石回采率高。

A main mine shaft in Taiji Mine is one of the deep mine shafts in Chinese coal mineS.From the year of 1971, totally 1550 times of minequake have been occured in the mine. Mine-quakes mostly occured at geological structural belts and the sections where have high mining activities. The mine quakes are low in quake source, high in intensity, more concentration in quake source and in other natures. There is a certain time circle for a mine-quake occured. The mine quakes are closeiy related to the earth-quake...

A main mine shaft in Taiji Mine is one of the deep mine shafts in Chinese coal mineS.From the year of 1971, totally 1550 times of minequake have been occured in the mine. Mine-quakes mostly occured at geological structural belts and the sections where have high mining activities. The mine quakes are low in quake source, high in intensity, more concentration in quake source and in other natures. There is a certain time circle for a mine-quake occured. The mine quakes are closeiy related to the earth-quake activities in the local area and the mining activities. After a study on the natures of the mine-quakes and the geological structures, earth stress and mining conditions,and other related reiatioens, it held that the mine-quake occuring in Taiji Mine is one of the earth-quakes which is initaiated by minings under an effect of a stress field in local area.

探讨了台吉煤矿矿震成因,认为矿震是在区域应力场的作用下,由采矿活动而诱发的一种地震。

In order to dispel the accidents of roof falls and facespalling, caused by lift up, jostle with, upside down ofcanopy and incline or support, the support-surroundingrock monitoring system in fully mechanized mining faceof high mining height coal seam is performed. Based onactual measurement in the field, simulated test with simi-lar material, simulative calculation by computer and theo-retical analysis, the independent indexes for moniteringare: maximum height of roof caving, the ratio of cavinginterval...

In order to dispel the accidents of roof falls and facespalling, caused by lift up, jostle with, upside down ofcanopy and incline or support, the support-surroundingrock monitoring system in fully mechanized mining faceof high mining height coal seam is performed. Based onactual measurement in the field, simulated test with simi-lar material, simulative calculation by computer and theo-retical analysis, the independent indexes for moniteringare: maximum height of roof caving, the ratio of cavinginterval and face length, initial working resistance, bar-tip-to-face distance etc.. The reasonable range of indexis determined by computer processing thc monitoring dataand combined with actual conditions. Then, the roof dy-namica and supporting state in coal face are presented bydaily report, and finally, it will be evaluated and themeasures needed to be taken will be suggested. For a re-sult, accident rate in supporting-surrounding rock systemwas efficiently decreased, the goal that raise of capacityof utilized machine and productivity per face werereached.

介绍了邢台东庞矿大采高综采面以顶板最大冒高、冒长/面长、初撑力、端面距为独立指标,对支架——围岩系统进行监控的方法。该法有效地降低了支架——围岩系统的事故率,大幅度地提高了工作面产量。

 
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