基于CT三维重建的高阶煤孔裂隙结构综合表征和分析 |
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引用本文: | 王刚,沈俊男,褚翔宇,曹春杰,江成浩,周晓华. 基于CT三维重建的高阶煤孔裂隙结构综合表征和分析[J]. 煤炭学报, 2017, 42(8): 2074-2080 |
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作者姓名: | 王刚 沈俊男 褚翔宇 曹春杰 江成浩 周晓华 |
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作者单位: | 1.山东科技大学 矿山灾害预防控制-省部共建国家重点实验室培育基地,山东 青岛 266590; 2.山东科技大学 矿业与安全工程学院,山东 青岛 266590; 3.卡尔蔡司(上海)管理有限公司,上海 200120 |
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基金项目: | 国家重点研发计划资助项目(2017YFC0805201);国家自然科学基金资助项目(51674158);山东科技大学杰出青年科技人才支持计划资助项目(2015JQJH105) |
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摘 要: | 为有效研究煤的孔裂隙结构特征,实现对煤的孔裂隙结构的定性定量表征和分析。以内蒙古巴彦高勒煤矿311102运输巷的煤样为研究对象,基于ZEISS Xradia510 Versa X射线显微镜扫描得到的CT数据,结合三维可视化软件AVIZO中内置数学算法,提出了煤的孔裂隙结构定量表征的方法,并建立了煤的三维孔裂隙结构模型和具有拓扑结构的孔隙网络简化模型。通过本文提出的方法,对巴彦高勒煤矿煤样的孔裂隙微观参数——孔径大小、孔体积、孔隙率、配位数、喉道长度等进行了统计分析。研究表明:在微米的尺度下,内蒙古巴彦高勒煤矿的煤样以大孔为主,并伴有网状的割理裂隙,有效孔隙率为10.34%,通过孔隙网络模型统计出的孔隙数为12 834,喉道数为432及其他的微观结构参数。
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关 键 词: | 高阶煤 CT 三维重建 孔裂隙 表征 |
收稿时间: | 2016-12-13 |
Characterization and analysis of pores and fissures of high rank coal based on CT three-dimensional reconstruction |
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Abstract: | To effectively study the characteristics of coal pore and fissures,the pore and fissures of coal were characterized by qualitative and quantitative characterization and analysis.The coal sample of 311102 working face in Bayangaole Colliery of Inner Mongolia was studied.Based on the IEISS Xradia 510 X-ray microscope Get the CT data.The mathematical algorithm was embedded in the three-dimensional visualization software AVIZO.The study proposed the methods of quantitative characterization of pore and fissure and set up a three-dimensional model of pore and fissure of coal and a pore network model with topology structure.The coal sample microscopic parameter of pore and fissures includes pore size,pore volume,porosity,coordination number and length of throat.The results show that under the micron scale the coal samples of Bayangaole Colliery are mainly in macroporous and have a cleat network.Its effective porosity is 10.34%.The number of pores is 12 834,and the number of throats is 432.These are calculated by the pore network model. |
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Keywords: | high-rank coal CT three-dimensional reconstruction pore and fissure characterization |
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