• In this paper, laws of mining pressure appearance are discussed.

    论述了回采巷道显现规律

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  • According to the field observation data, mining pressure and rock burst tendency in deep mining condition are studied.

    根据现场观测数据深部开采条件下工作面采动压力冲击矿压倾向进行了研究。

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  • The practice of bolt support in reserved coal drift in mining pressure area is introduced, helpful conclusion is obtained through observation and analyse.

    介绍了锚杆支护巷的实践,并通过观测数据分析,得出了有借鉴意义结论

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  • 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.

    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

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  • 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.

    通过巷道地质情况显现规律进行了详细分析结合支护理论现场实践,提出科学合理的支护方式。

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  • 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.

    本文根据采场围岩运动矿山压力研究实践,“矿山岩层移动”“矿山压力”门学科融为一体。

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  • 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.

    采矿业巨头必和必加拿大萨斯喀彻温省Potash公司收购失败,压制了悉尼股市

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  • A severe challenge of radiation control and high water pressure dealing is faced during mining this kind of deposit.

    开采矿床辐射控制高压水力处理方面面临严峻挑战

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  • 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,放顶煤采煤支承压力分布形式分层开采类似量值影响范围上有增减。

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  • In addition to charts and tables which are meaningful to control surface subsidence and rock pressure in mining engineering, examples are also provided.

    文中除给出采矿工程控制地表沉陷矿山压力意义的图表外,还提供了几个实例。

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  • Many mines or mining city in China are faced with many problems, such as severe environment pressure and exhausting resources etc.

    我国许多矿山矿业城市面临严重环境破坏资源枯竭问题。

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  • A digital simulation is made to the rock pressure distribution of faces with large mining height when crossing gob, which may guide engineering practice.

    针对采高工作面矿山压力分布进行了数值模拟掌握分布规律,从而对工程实践提出指导性意见。

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  • High pressure ring-shaped DTH drills are key equipment for underground high level large diameter long hole mining.

    气压环形潜孔钻机地下矿山阶段直径孔采矿关键设备

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  • 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理论建模基本思想立论依据理论成果及其煤层的普通开采和放顶煤开采中的实际应用情况;

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  • 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.

    制砂现场矿业领域广泛地应用前段工艺产生大量矿,减少成本的磨矿负荷。

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  • 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,随着采高增大,工作面滞后支承力距离加大,垂直应力集中系数差别不大。

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  • Finally a plan of coal mining under pressure is put forward, and the feasibility of the plan is demonstrated as well.

    提出了开采煤层方案对该方案的可行性进行了论证。

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  • 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支承压力峰值变化顶煤破碎的影响

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  • 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.

    本文提出生产实际中意义稳定临界点概念求法确定最佳输送方案提供依据

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  • 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研究矿山压力主要方法与手段之一

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  • 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.

    冒顶片事故地下矿山危害最为严重事故,矿山地压管理是地下开采矿山安全管理的重要任务

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  • Fault impact pressure is a dynamical phenomenon caused by coal mining, with fault abruptly dip offset, and stretch strain energy rapidly release.

    断层冲击由于开采活动引起断层突然相对错动弹性应变迅速释放动力现象

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  • The major factors of pressure bump generation are natural factors and mining factors.

    诱发冲击地压主要因素自然因素开采因素。

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  • 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.

    论文主要是针对远程保护层开采条件下,巷上向穿层钻孔抽放远程瓦斯技术进行了深入研究。

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  • 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,激法减压法、化学抑制剂法、置换法混合开采法等。

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  • The result obtained is of importance in guiding the ground-pressure control and mining procties.

    得出结论对于控制地压采矿生产有指导意义

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  • 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水文地质特征分析,提出局部疏干降压注浆截流开采技术途径

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  • 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水文地质特征分析,提出局部疏干降压注浆截流开采技术途径

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