高强度超长推进距离工作面双巷布置沿空掘巷机理
TPO28.8; 为综合解决超长推进距离工作面双巷布置回采率低、二次采动巷道维护困难与沿空掘巷需要跳采等几个问题,提出了“一种超长推进距离工作面的沿空掘巷开采方法”,并确定了其应用的几个关键参数;采用理论分析与现场实测两种方法,确定在距采空区12m的位置布置沿空掘巷,掘进工作面滞后本回采工作面距离不小于1 200 m,超前下一回采工作面不小于190 m,即可避免采-掘-采之间的相互干扰;结合实际工程背景条件下,确定原双巷布置留40 m煤柱,二次采动影响巷道会出现大变形与破坏,无法满足生产要求,而采用沿空掘巷技术在保证使用要求的前提下,单个工作面即可取得巨大的经济效益.研究结论可为具有类似地质与...
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| Published in | 煤炭学报 Vol. 42; no. z2; pp. 302 - 310 |
|---|---|
| Main Authors | , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
中国矿业大学(北京)资源与安全工程学院,北京100083
01.12.2017
放顶煤开采煤炭行业工程研究中心,北京100083%中国矿业大学(北京)力学与建筑工程学院,北京,100083%中国矿业大学(北京)资源与安全工程学院,北京,100083 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 0253-9993 |
| DOI | 10.13225/j.cnki.jccs.2017.1293 |
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| Abstract | TPO28.8; 为综合解决超长推进距离工作面双巷布置回采率低、二次采动巷道维护困难与沿空掘巷需要跳采等几个问题,提出了“一种超长推进距离工作面的沿空掘巷开采方法”,并确定了其应用的几个关键参数;采用理论分析与现场实测两种方法,确定在距采空区12m的位置布置沿空掘巷,掘进工作面滞后本回采工作面距离不小于1 200 m,超前下一回采工作面不小于190 m,即可避免采-掘-采之间的相互干扰;结合实际工程背景条件下,确定原双巷布置留40 m煤柱,二次采动影响巷道会出现大变形与破坏,无法满足生产要求,而采用沿空掘巷技术在保证使用要求的前提下,单个工作面即可取得巨大的经济效益.研究结论可为具有类似地质与开采技术条件的矿井提供一定的借鉴. |
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| AbstractList | TPO28.8; 为综合解决超长推进距离工作面双巷布置回采率低、二次采动巷道维护困难与沿空掘巷需要跳采等几个问题,提出了“一种超长推进距离工作面的沿空掘巷开采方法”,并确定了其应用的几个关键参数;采用理论分析与现场实测两种方法,确定在距采空区12m的位置布置沿空掘巷,掘进工作面滞后本回采工作面距离不小于1 200 m,超前下一回采工作面不小于190 m,即可避免采-掘-采之间的相互干扰;结合实际工程背景条件下,确定原双巷布置留40 m煤柱,二次采动影响巷道会出现大变形与破坏,无法满足生产要求,而采用沿空掘巷技术在保证使用要求的前提下,单个工作面即可取得巨大的经济效益.研究结论可为具有类似地质与开采技术条件的矿井提供一定的借鉴. |
| Abstract_FL | The paper intends to comprehensively solve the problem of the low recovery rate of super-long two-entry longwall panels,difficulty maintenance of secondary mining roadway and need to jump in the gob-side entry.First of all,the patent put forward "A Gob-Side Entry Driving Method in Super-long Working Face",and determined several key parameters.Secondly,the paper adopts the methods of theoretical analysis and field measurement to determines that the gob-side entry is arranged at a distance of 12 m away from the goaf.The distance of heading face behind the working face isn't less than 1 200 m,and that ahead of the next face is not less than 190 m.The method can avoid mutual interference in the mining.Finally,under the conditions of actual engineering background,it determined the 40 m coal pillar in the original method and occurred large deformation in the secondary mining roadway,which can not meet the production requirements.If roadways use the roadway driving technology,it will be getting huge economic benefits.The conclusion can provide certain reference for the mine with similar geological and mining technology conditions. |
| Author | 石磊 王志强 苏越 王昊昊 |
| AuthorAffiliation | 中国矿业大学(北京)资源与安全工程学院,北京100083;放顶煤开采煤炭行业工程研究中心,北京100083%中国矿业大学(北京)力学与建筑工程学院,北京,100083%中国矿业大学(北京)资源与安全工程学院,北京,100083 |
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| Author_FL | WANG Zhiqiang SHI Lei SU Yue WANG Haohao |
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| DocumentTitle_FL | Sequential extraction technology for high-intensity super-long two-entry longwall panels |
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| Keywords | 超长推进距离 双巷布置 顺序开采 super long advancing distance gob-side entry driving 煤柱 高强度 coal pillar sequential extraction two-entry system 沿空掘巷 high-intensity |
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| PublicationTitle_FL | Journal of China Coal Society |
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| Publisher | 中国矿业大学(北京)资源与安全工程学院,北京100083 放顶煤开采煤炭行业工程研究中心,北京100083%中国矿业大学(北京)力学与建筑工程学院,北京,100083%中国矿业大学(北京)资源与安全工程学院,北京,100083 |
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| Snippet | TPO28.8; 为综合解决超长推进距离工作面双巷布置回采率低、二次采动巷道维护困难与沿空掘巷需要跳采等几个问题,提出了“一种超长推进距离工作面的沿空掘巷开采方法”,并确定了其应用的几个关键参数;采用理论分析与现场实测两种方法,确定在距采空区12m的位置布置沿空掘巷,掘进工作面滞后本回采工作面距离不小于1 200... |
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| Title | 高强度超长推进距离工作面双巷布置沿空掘巷机理 |
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