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向斜条件下不规则综放工作面对接技术 被引量:4
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作者 南华 李明 《煤炭技术》 CAS 北大核心 2015年第7期6-8,共3页
白坪矿11211综放工作面所采煤层因受到向斜地质构造与薄煤层的影响,导致"刀把式"工作面需要在向斜轴面进行对接。通过对液压支架稳定性及刮板输送机运载能力的分析,为工作面对接提供前期准备,同时介绍了工作面对接前准备工作... 白坪矿11211综放工作面所采煤层因受到向斜地质构造与薄煤层的影响,导致"刀把式"工作面需要在向斜轴面进行对接。通过对液压支架稳定性及刮板输送机运载能力的分析,为工作面对接提供前期准备,同时介绍了工作面对接前准备工作、对接工艺流程以及对接注意事项。总结出了切实可行的向斜条件下不规则综放工作面对接技术。 展开更多
关键词 向斜条件 综放采工作面 工作面对接 对接技术
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CBM geology conditions study of Gemudi syncline,Western Guizhou Province
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作者 WU Cai-fang OU Zheng FENG Qing ZHANG Jie-fang 《Journal of Coal Science & Engineering(China)》 2010年第3期288-291,共4页
Through the analysis of the surrounding rock, coal seam burial depth, coal quality and hydrologic geological condition, the methane-bearing property characteristics of the coal reservoir in the Gemudi syncline were el... Through the analysis of the surrounding rock, coal seam burial depth, coal quality and hydrologic geological condition, the methane-bearing property characteristics of the coal reservoir in the Gemudi syncline were elucidated. Most of the wall rock of the coal reservoir is mudstone and silt, which is a favourable enclosing terrane. Burial depth of the main excavating coat seam is moderate. The groundwater activity is thin, and there are absolute groundwater systems between each coal seam, which make poor intercon- nections to accelerate CBM enrichment. In our research, the area coal reservoir meta- morphosis is high, CBM content is high, hole-cranny system development degree is high, and permeability of the great mass of the main coal seam exceeds 0.1×10^-3 μm2, The result demonstrates that the southeast of the Gemudi syncline has the best conditions for prospecting and exploiting CBM. 展开更多
关键词 Gemudi syncline CBM geological condition coal reservoir characteristics permeability
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