The development level of rock & soil drilling and tunneling within and out of China is briefly mentioned.
重点概述在固体矿产岩心钻探、水井钻探、石油天然气钻探、大陆科学钻探、大洋钻探、极地钻探和外星钻探及掘进工程等方面的国内外发展状况与差距,并提出重点研究开发和引进建议。
In order to accurately predict heading face gas emission,determine a reasonable ventilation design and develop gas prevention and control measures,through on-site gas emission measurement and statistical information,the main influencing factors are studied between the dynamic gas emission and driving technology,structure,coal seam thickness,driving speed,exposure time and etc.
为了准确预测掘进工作面瓦斯涌出量,确定合理通风设计和制定瓦斯防治措施,通过现场实测及统计瓦斯涌出资料,考察掘进工作面的瓦斯动态涌出的主要影响因素,研究瓦斯涌出与掘进工艺、构造、煤层厚度、掘进速度及暴露时间等因素的关系。
It introduced the drift collocation of wetting dustproof system in driving face and the lectotype design of the correlation equipment.
阐述了矿井粉尘的危害及粉尘防治的重要性,介绍了掘进工作面湿式除尘系统巷道布置以及此系统相关设备的选型设计。
This article introduces the situation of using the longhole shock blasting technology to prevent gas and coal outburst in driving face,analyzes the application result.
介绍了在掘进工作面应用深孔松动爆破技术预防煤与瓦斯突出的实施情况,并对应用效果进行了分析。
3422 driving face in Shitai Coal Mine.
淮北矿业集团公司石台煤矿对3422掘进工作面采取了瓦斯综合治理措施,达到了预想的效果。
For gripping the distribution regularities of the dust, based on the theory of two-phase flow of gas and solid,and the characteristics of coal mine driving working face,using the discrete phase models of computational fluid mechanics to simulate the dust concentration during the ventilation process of coal roadway driving with forced ventilation.
为了掌握粉尘的分布规律,根据气固两相流理论,针对矿井掘进工作面的特点,采用计算流体力学的离散相模型(DPM)对压入式通风掘进巷道中粉尘浓度进行了数值模拟。
Basing on the theory of two-phase flow of gas and solid, and the characteristics of coal mine driving working face, using the discrete phase models of computational fluid mechanics to simulate the dust concentration during the ventilation process of coal drift driving with exhaust ventilation.
根据气固两相流理论,针对矿井掘进工作面的特点,采用计算流体力学的离散相模型(DPM)对掘进工作面通风过程中粉尘浓度进行数值模拟,总结抽出式通风掘进巷道中粉尘浓度的沿程分布及变化规律。