In this paper, laws of mining pressure appearance are discussed.
论述了回采巷道的矿压显现规律。
According to the field observation data, mining pressure and rock burst tendency in deep mining condition are studied.
根据现场观测数据,对深部开采条件下工作面采动压力和冲击矿压倾向进行了研究。
The practice of bolt support in reserved coal drift in mining pressure area is introduced, helpful conclusion is obtained through observation and analyse.
介绍了煤巷锚杆支护在动压区留巷的实践,并通过观测及数据分析,得出了有借鉴意义的结论。
Microseismic monitoring technique is of important meaning for the safety of coal mine, the prediction of the period of mining pressure and the increase of recovery rate.
微地震监测技术对确定采场覆岩“两带”高度、预报采场顶板破坏、预测煤与瓦斯突出,从而预防灾害发生、保证煤矿安全生产并提高资源回采率等具有重要意义。
By analysing the geologic conditions and appear law of mining pressure for tunnel, combine support theory with practice, points out the reasonable and science support forms.
通过对巷道的地质情况、矿压显现规律进行了详细分析,结合支护理论和现场实践,提出了科学合理的支护方式。
This paper, based on studies of the wall rock motion and mining pressure in the mining area, combines the two subjects of the mining rock stratum and the mining pressure into one theory.
本文根据对采场围岩运动、矿山压力研究的实践,把“矿山岩层移动”和“矿山压力”两门学科融为一体。
BHP Billiton tumbled to pressure the broad market in Sydney after the mining giant's bid for Canada's Potash Corp. of Saskatchewan was rejected.
采矿业巨头必和必拓对加拿大萨斯喀彻温省的Potash公司的收购失败后,压制了悉尼股市。
A severe challenge of radiation control and high water pressure dealing is faced during mining this kind of deposit.
开采这类矿床在辐射控制和高压水力处理方面面临着严峻的挑战。
The result indicated That the abutment pressure distribution form was similar to that of slicing mining method but its magnitude and affecting range changed.
结果表明,放顶煤采煤法其支承压力分布形式与分层开采法类似,但在量值及影响范围上有增减。
In addition to charts and tables which are meaningful to control surface subsidence and rock pressure in mining engineering, examples are also provided.
文中除给出对采矿工程中控制地表沉陷与矿山压力有意义的图表外,还提供了几个实例。
Many mines or mining city in China are faced with many problems, such as severe environment pressure and exhausting resources etc.
我国许多矿山或矿业城市面临严重的环境破坏和资源枯竭问题。
A digital simulation is made to the rock pressure distribution of faces with large mining height when crossing gob, which may guide engineering practice.
针对大采高工作面过空巷时的矿山压力分布进行了数值模拟,以掌握其分布规律,从而对工程实践提出指导性意见。
High pressure ring-shaped DTH drills are key equipment for underground high level large diameter long hole mining.
高气压环形潜孔钻机是地下矿山高阶段大直径深孔采矿的关键设备。
The paper reviews state of the art ground pressure theory of thin slab in coal mining such as scientific concepts, foundation argumentation, theoretical development and the field application.
文章阐述了采场薄板矿压理论建模的基本思想、立论依据、理论成果及其在煤层的普通开采和放顶煤开采中的实际应用情况;
System in mining field pressure-blasting machine site, widely used in grinding anterior process, it can produce a lot of powder grinding, reduce the high cost of grinding the load.
制砂机现场在矿业领域,广泛地应用于磨矿前段工艺,它能产生大量的粉矿,减少高成本的磨矿负荷。
The lag distance of abutment pressure behind working face increases, but the convergence coefficient of vertical stress doesn't change obviously with the increase of mining height.
分层开采与综放开采工作面滞后支承压力变化规律是,随着采高的增大,工作面滞后支承力的距离加大,垂直应力集中系数差别不大。
Finally a plan of coal mining under pressure is put forward, and the feasibility of the plan is demonstrated as well.
提出了带压开采煤层的方案,并对该方案的可行性进行了论证。
On the basis of model's results, effects in top-coal smash, and changes of peak value of abutment pressure within mining range are analyzed.
根据模拟结果,分析了开采范围内支承压力峰值的变化及对顶煤破碎的影响。
This article also puts forward the concept and evaluation method of the stable critical point of the pressure drop. therefore it has supplied the basis for deter - mining the optimum transfer plan.
本文还提出了在生产实际中有意义的压降稳定临界点的概念和求法,为确定最佳输送方案提供了依据。
The mining similar simulation experiment is one of the main method of rock pressure researches.
采矿相似材料模拟试验是研究矿山压力的主要方法与手段之一。
Roof fall accident is one kind of dangerous accidents happened at underground mines and underground pressure management is the main task of mining safety management.
冒顶片帮事故是地下矿山危害最为严重的事故,矿山地压管理是地下开采矿山安全管理的重要任务。
Fault impact pressure is a dynamical phenomenon caused by coal mining, with fault abruptly dip offset, and stretch strain energy rapidly release.
断层冲击矿压是由于开采活动引起的断层突然相对错动、弹性应变能迅速释放的动力现象。
The major factors of pressure bump generation are natural factors and mining factors.
诱发冲击地压的主要因素为自然因素和开采因素。
This paper mainly researches on the technique of draining long distance pressure relief gas in bed plate tunnel under the circumstance of mining protective coal seam.
本论文主要是针对远程下保护层开采条件下,对底抽巷上向穿层钻孔抽放远程卸压瓦斯技术进行了深入的研究。
Several exploitation methods for tapping NGH have been suggested, such as thermal activation, pressure releasing, chemical inhibitor, replacement and slurry mining.
现有的多种天然气水合物开采方案,如热激法、减压法、化学抑制剂法、置换法和混合开采法等。
The result obtained is of importance in guiding the ground-pressure control and mining procties.
得出的结论对于控制地压和采矿生产有指导意义。
The writer proposed mining technological method to lower water pressure and grouting to prevent water inrush, after studying the geological and hydrogeological characteristics in this coal mine.
笔者通过对该矿地质及水文地质特征分析,提出局部疏干降压和注浆截流的开采技术途径。
The writer proposed mining technological method to lower water pressure and grouting to prevent water inrush, after studying the geological and hydrogeological characteristics in this coal mine.
笔者通过对该矿地质及水文地质特征分析,提出局部疏干降压和注浆截流的开采技术途径。
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