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- The characters of deep mine are larger raw rock pressure,larger ore body plasticize,mine pressure severe appearance. 深矿井的特征是原岩压力大、矿体塑性大及矿山压力显现剧烈。
- deep mine pressure 深井矿压
- This author proposes to force roof carving to prevent shear failure by observing the mine pressure. 通过矿压观测,判断顶板来压方式,采取强制放顶,防止顶板剪切破坏。
- Deep mining first blighted the West Virginia landscape. 深挖矿井首先使弗吉尼亚州的风景遭到破坏。
- The extraction of coal from these deep mines is expensive. 从这些深矿中取得煤是很昂贵的。
- With application and dissemination of bolt supporting technique,the importance and necessary of mine pressure monitoring are recognized. 随着锚杆支护技术的不断推广应用,人们已经认识到矿压监测的重要性和必要性。
- Underground test showed that this system can control large do formation of deep mine to keep stability of its surrounding cock. 井下试验表明,高预应力、强力锚杆支护系统能有效控制深部巷道强烈变形,保持围岩稳定。
- Rock-bursting is a special underground pressure behavior in deep mining in China currently and it intimidates seriously the safe mining. 冲击矿压是当前我国煤矿深部开采出现的一种特殊的矿山压力现象,它严重威胁井下安全生产。
- To Prevent the phenomena of mine shaft power (mine pressure,shock earth pressure,coal and gas burst.carbon dioxide burst,efc.) ,and ensure mine safety,we must distribution in mine shafts. 为了防止矿井动力现象(矿山压力、冲击地压、煤与瓦斯突出、二氧化碳突出等),保障矿井安全生产,必须全面了解矿区地应力分布规律。
- After entering deep mining in Fujia mine, the orebody becomed small, stope layer transition increased, and productive capacity decreased. 富家矿转入深部开采以后,矿体变小,采场转层次数频繁,生产能力降低。
- In the end, the roles of holing-plate in the strata or ground moving, local mining, mine pressure, separated strata grouting technique etc. are analyzed. 还分析了托板在岩层与地表移动、局部开采、矿山压力以及离层注浆技术中的作用等内容。
- Test research on ground pressure control for deep mine roadway 深井巷道地压控制的试验研究
- With mining capacity continuous increase and with mine entering into deep mining stage,the grade of crude ore and the grindability of ore decrease that raise the cost of grinding. 随着矿山规模的不断扩大和进入深部开采,矿石的原矿品位和相对可磨度逐渐降低,磨矿成本随之升高。
- Most of large and middle scale open-pit mines in China have reached deep mining. 摘要我国的大多数大中型露天矿山已经或即将进入深部开采。
- The cast and working capacity of driving and supporting tunnel increase several times over in mining deep mine.The subterranean heat problem gradually appears in the deep mine. 在深矿井开采中,巷道的开掘和支护成本、工作量都要成倍地增加,并且在深矿井中地热问题也逐渐显现。
- The paper states a method of handling mining pressure data,which consists oftwo steps, variance analysis and regressive analysis,it can reduce a lot of work to analyze the da-ta. 介绍了一种矿压数据处理方法,该方法分二步走,第一步为方差分析,第二步为回归分析。该法可以大幅度地减少数据分析量。
- This paper introduces the relationship between spatial structure of overlying strata and mining pressure field in longwall face revealed by microseismic monitoring techniques. 介绍了用微地震定位监测技术揭示的采场覆岩空间破裂与采动应力场的关系。
- JIANG Yaodong, ZHAO Yixin, LIU Wengang, et al.Investigation on three-dimensional model of instability of translatory coal bumps in deep mining[J]. 刘文岗;姜耀东;周宏伟;等.;冲击倾向性煤体的细观特征与裂纹失稳的试验研究[J]
- The influencing factors relating to chamber stability of deep mining stope were fully analyzed, and the factors were divided into 4 types. 摘要对影响深井采场凿岩硐室稳定性的因素进行了全面分析,并将影响因素分为4类。
- Mine Pressure and Strata Control 矿山压力与岩层控制