As result of backward equipment and wrong operation, the forecast results become unreliable when the index of drilling yields is used in forecasting coal or rock outburst.
用钻屑量指标预测煤与瓦斯突出时,由于采样装置落后和操作不规范等原因,导致预测结果可靠性降低。
Coal (rock) and gas outburst is one of intense natural disaster, is also a complicated and dynamical phenomenon, caused by stress, gas pressure of coal bed as well as coal structure.
煤(岩)与瓦斯突出是煤矿严重的自然灾害之一,且是一种复杂的动力现象,是地应力、煤层中的瓦斯压力和煤的结构力学性质综合作用的结果。
The results indicate that outburst will occur under the condition of rock cross-cut coal uncovering in 10 level of Majiagou coal mine.
结果表明,10水平在石门揭煤条件下具有发生突出危险。
The ground stress surveying, rock mass deformation monitoring in Erlangshan tunnel, and study of the characteristics, influence factors of water outburst in Huayingshan tunnel are presented.
概述了二郎山隧道地应力场、岩爆及围岩变形的监测预报,并对华蓥山隧道岩溶涌突水的特征、原因及对隧道的影响进行了研究;
The electromagnetic radiation (EMR) technology can forecast coal or rock dynamic disaster, such as coal and gas outburst, rock burst etc.
煤岩电磁辐射监测技术可以预测、预报矿井冲击地压和煤与瓦斯突出等煤岩动力灾害。
With the application of the methods of the energy the initial releasing gas and the aggregate, the paper will mainly focus on the analysis of the outburst of the rock cross-cut coal uncovering.
应用初始释放瓦斯膨胀能指标法和综合指标法,对石门揭煤的突出进行了危险性分析。
There are many factors influence gas outburst, rock pressure was one of the important factors, and it was also a new contents to study rock pressure.
影响煤与瓦斯突出的因素较多,矿压对瓦斯突出的影响是其中一项重要的因素,也是现今矿山压力研究的一项新内容。
The magmatic rock intrudes relative seriously in Wangying Colliery, rock-burst and gas outburst mainly take place near igneous rock wall.
王营煤矿的岩浆岩侵入比较严重,冲击矿压和瓦斯突出多发生在火成岩墙附近。
High stress rock burst and water outburst occurred in Erlangshan and Huayingshan road tunnels separately.
对二郎山和华蓥山隧道在建设过程中的高地应力岩爆与岩溶涌突水问题进行了研究。
Rock gas outburst becomes more and more serious with the increase of mining depth.
随着煤炭开采深度的增加,岩石与瓦斯突出日益严重,其危害不亚于煤和瓦斯突出。
The transient release of excavation load is accompanied by the development of cracks, the outburst of detonation gases and the formation of new free surface during the rock fragmentation by blasting.
岩体爆破开挖过程中,开挖荷载瞬态卸荷伴随着爆破破岩的裂纹扩展、爆生气体逸出以及新自由面形成等过程而发生。
The electromagnetic radiation technology can be used for forecasting dynamic disasters such as coal and gas outburst and rock burst in coal mine.
电磁辐射技术在煤矿可以用于预测煤与瓦斯突出、冲击地压等煤岩动力灾害。
Adsorption capacity of outburst coal is strong, desorption velocity is very fast too. It can form very high gas pressure which enhance destructiveness of coal-rock.
突出煤吸附能力强,解吸速度相对也较快,可能形成较高的气体压力,对煤岩的破坏性增强。
Prospective for further study on EME method for predicting rock or coal outburst was presented.
笔者最后还对未来煤岩冲击矿压电磁辐射预测法的研究进行了展望。
Prospective for further study on EME method for predicting rock or coal outburst was presented.
笔者最后还对未来煤岩冲击矿压电磁辐射预测法的研究进行了展望。
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