• 微观角度分析了圆形硐室片帮岩爆发生机制

    The mechanism of splitting type rock burst of round chamber is analyzed from microcosmic viewpoint.

    youdao

  • 保证安全质量标准化采用施工取得一定经济社会效益

    For the safety and quality standardization, the anti-tablets help network construction is used. The certain economic and social benefits are obtained.

    youdao

  • 片帮冲击矿压发生机理出发,分析了煤层巷采用锚杆支护的机理。

    Based on the occurring mechanism of slough rock burst, the mechanism to weaken shock with bolt support in coal roadway is analyzed.

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  • 地下工程中临空面上首先冒落引发其他岩块冒落片帮块体称作石”。

    The block which will be the first of caving rocks from free surface and lead to more caving or side-fall in underground work is known as "critical rock".

    youdao

  • 武山铜矿采用上向水平分层进路水砂充填法回采,采场多次发生冒顶片帮

    The South ore-bearing zone of Wushan copper mine is mined with ascending horizontal slicing hydraulic fill crosscut mining system. Roof falling and rib spalling occurred in any times.

    youdao

  • 摘要注浆加固技术防治煤壁片帮有效措施关键环节在于注浆选择

    Abstract : The coal wall grouting reinforcement technique is an effective measure to prevent and control rib spalling, and its key procedure is the selection of grouting quantity.

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  • 冒顶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

    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.

    youdao

  • 前言: 石台煤矿II3123工作面“三软”煤层放工作面,顶板破碎易掉片帮冒顶时常发生

    The II3123 face is a light type caving face of three-soft coal seam. the roof is cracked, sloughing and roof fall often occur.

    youdao

  • 现场实践证明,采场顶板发生冒落、矿柱出现开裂片帮等现象急剧减少采场整体稳定性得到显著提高

    It is proved that the occurrence of roof caving and ore pillar fracturing is rapidly decreased, and the whole safety of mining stop is significantly improved.

    youdao

  • 针对炮采工作特点危害原因进行深入分析提出相应防范措施类似工作面片帮现象的防治具有借鉴意义

    The characters, damage and cause of rib fall at blasting face were analysed, and preventive measures were put forward, which has some reference value for other similar condition mines.

    youdao

  • 研究表明:放顶煤开采、提高支架工作阻力可以减缓压力,煤体合理注水可以提高煤体黏聚力抗剪强度,它们防治极软煤层煤壁片帮的有效措施。

    The following research results are obtained: the top coal caving technique and increasing the resistance of the support can reduce the pressure on the coal wall.

    youdao

  • 关注得如此深切,以至于注意到那位中国女士对她表示感谢,她可是掉的玉米桶上

    He is so observant that he failed to notice and appreciate the kindness from the Chinese lady who helped him with the broken cornflake dispenser.

    youdao

  • 爱心捐助:,我们、我们的玉树地区灾民;点亮希望灯,玉树撑起一蔚蓝的天。

    Donation for Yushu: Help the victims of Yushu earthquake with our love and our hearts, lighting a lamp of hope for Yushu.

    youdao

  • 虽然好心实际上不了什么忙。

    He is full of good intentions but can't really do anything to help.

    youdao

  • 明明可耻辜负了信赖现在却还那里,高谈他的忙!

    There he stood now, guilty of this miserable breach of confidence and talking about what he had done for her!

    youdao

  • 第一部实验《518》,从而结识了志同道合朋友成立了王耀峰电影工作室。

    When shooting 518, he made a lot of friends who share the same ambitions and interests. Then he established Wang Yanfeng Video Studio.

    youdao

  • 宝宝换一下尿吗?

    Will you change the baby?

    youdao

  • 宝宝换一下尿吗?

    Will you change the baby?

    youdao

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