Application of deep borehole blasting on fully mechanized hard top-coal pre-splitting and gas extrac

来源 :矿业科学技术学报：英文版 | 被引量 : 0次 | 上传用户：jcfasd123

【摘要】

：

In order to solve the problems of top-coal inadequate destruction and large amounts of gas emission in mining extra thick and hard coal seam,this study investig

【作者】

：

Liu Jian Liu Zegong Xue Junhua

【机构】

：

StateKeyLaboratoryofDeepCoalMining&,EnvironmentalProtection,SchoolofEnergyandSafety,KeyLaboratory

【出处】

：

矿业科学技术学报：英文版

【发表日期】

：

2015年5期

【关键词】

：

深孔爆破特厚煤层综放工作面瓦斯抽放预裂应用特厚坚硬煤层瓦斯预抽 Deep borehole blasting Fully mechanized

【基金项目】

：

financially supported by the National Natural Science Fund of China(Nos.51004003 and 51474009),Anhui Province Education Department Natural Science Fund Key Project of China(No.KJ2010A091)

下载到本地 , 更方便阅读

下载此文赞助VIP

声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架

论文部分内容阅读

In order to solve the problems of top-coal inadequate destruction and large amounts of gas emission in mining extra thick and hard coal seam,this study investigated the pre-splitting for deep borehole blasting and gas pre-draining technologies on top coal

其他文献

Characterization and separation of pyrite from Abu Tartur black shale

This work aimed for pyrite separation from Abu Tartur black shale as a source of sulfur to be an added economic value of Abu Tartur area. The considered samples

期刊

分离过程黑色页岩黄铁矿表征样品处理粘土矿物统计设计最佳条件Abu Tartur plateauBlack shalePyriteFalco

Numerical analysis of rainfall effects in external overburden dump

The effect of slope angle for external overburden dump in response to average and heavy rainfall has been analyzed using a two dimensional finite difference met

期刊

Failure mechanism and control technology of longwall coalface in large-cutting-height mining method

The stability control of longwall coalface is the key technology of large-cutting-height mining method.Therefore,a systematic study of the factors that affect c

期刊

长壁工作面控制技术开采方法失效机理大采高顶板稳定性采煤工作面煤体强度Large-cutting-height mining methodLong

Study on kinetics of thermal decomposition of low LOI goethetic hematite iron ore

In the present study, the kinetics of thermal decomposition of hydrated minerals associated in natural hematite iron ores has been investigated in a fixed bed s

期刊

LossonignitionGOETHITEKAOLINITEGIBBSITEROASTINGPelletfeedKineticanalys

Optimum mining method selection using fuzzy analytical hierarchy process-Qapiliq salt mine, Iran

Mining method selection is the first and the most critical problem in mine design and depends on some parameters such as geotechnical and geological features an

期刊

采矿方法选择模糊层次分析法盐矿地质特征计算方式矿井设计地理因素问卷调查Mining method selection Fuzzy AHP Mul

Research into stope roof control of compound roof by solid backfilling mining

Based on the analysis of the failure characteristics and backfilling effect of the compound roof at 1801 backfilling workface in Taiyuan coal mine,China,we prop

期刊

顶板控制复合顶板充填开采采场顶板预应力锚杆预应力螺栓固体故障特征分析Compound roof Backfilling mining Stope

Water blocking effect caused by the use of hydraulic methods for permeability enhancement in coal se

To research techniques for removing the water blocking effect caused by hydraulic applications in coal seams,the use of surfactants is proposed,based on the mec

期刊

煤层透气性堵水效果水力表面活性剂镜质体反射率羧甲基纤维素钠毛细管力矿井瓦斯Gas extraction Hydraulic measures W

Characteristics of coal re-oxidation based on microstructural and spectral observation

In order to investigate the characteristics of re-oxidation of residual coal in goafs in close coal seam mining,scanning electron microscope and infrared spectr

期刊

煤层开采氧化特性微观结构光谱观测扫描电子显微镜活性官能团初始氧化红外光谱仪Spontaneous combustion of coal Re-

发电厂设备维修管理模式探讨

本文通过对设备检修模式及维护的分析,针对发电厂设备、生产特点,探讨适合发电厂的设备管理模式,根据企业检修维护经验和研究,提出发电厂设备管理的实施办法。

期刊

发电厂复合维修模式点检定修制状态检修

Research on characteristics of water motion and influencing factors for the flexible air chamber jig

The air bag deformation data were obtained by high-speed dynamic videos experiments. Based on gas–liquid flow VOF model, dynamic mesh technique and deformation

期刊

影响因素水运动跳汰机空气室最大速度体内均匀流动变形数据Flexible air chamber jig Water motion Numeric

Application of deep borehole blasting on fully mechanized hard top-coal pre-splitting and gas extrac

与本文相关的学术论文