基于3DMine软件的煤炭资源数据建模与分析
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摘要
三维地质模型可以为不同领域的工程设计、施工及决策提供帮助。以山东古城煤矿3煤为研究对象,基于3DMine软件对目标煤层进行三维地质建模、储量计算和煤质分布规律分析。首先结合已有地质资料和钻孔数据建立钻孔数据库,构建了插入断层面的3煤顶底板表面模型;然后将煤层模型块体化,采用距离幂次反比法对块体属性模型进行插值,并据此计算了煤层可采储量、分析目标煤层煤质分布情况。结果表明,使用断层模型控制下的煤层三维表面模型能够直观反映煤层和构造的实际空间形态,在考虑全矿性损失影响后,依据煤层三维块体属性模型计算所得的可采储量结果更具实际参考意义,结合三维煤层模型分析煤质与煤层埋深的关系表明,研究区从北西到南东,随着煤层埋藏深度逐渐增加,煤的深成变质作用逐渐加深,灰分、硫分、挥发分随之降低,发热量和黏结指数随之升高。
Taking No.3 coal in Gucheng coal mine, Shandong Province as the target, 3D coal seam entity models were built in 3DMine software, coaly quality indices' distributions were analyzed and coal reserve was calculated and compared to the reserve estimation in method of geological block. Firstly, a boreholes database is established using the geological data and borehole data of the target, and a 3D surface model of the coal seam with faults embedded was constructed. Then, the surface model was interpolated into an entity blocks model through the algorithm of inverse distance weighted(IDW) interpolation. Finally, the recoverable coal reserve of the target was computed and the distributions of several indices of the coal quality, such as Mad, Ad, St,d, Qg,d, Vdaf and GR.I., were analyzed and visualized based on the entity blocks model. The result shows that the indices Ad, St,d and Vdaf decrease from northwest to southeast along the coal seam burial depth increases while the Qg,d and GR.I. grow up.Furthermore, the 3D blocks model with faults embedded not only represents the actual spatial morphology of coal seam and faults structure vividly but gives a much more consulted recoverable coal resources calculation also.
Taking No.3 coal in Gucheng coal mine, Shandong Province as the target, 3D coal seam entity models were built in 3DMine software, coaly quality indices' distributions were analyzed and coal reserve was calculated and compared to the reserve estimation in method of geological block. Firstly, a boreholes database is established using the geological data and borehole data of the target, and a 3D surface model of the coal seam with faults embedded was constructed. Then, the surface model was interpolated into an entity blocks model through the algorithm of inverse distance weighted(IDW) interpolation. Finally, the recoverable coal reserve of the target was computed and the distributions of several indices of the coal quality, such as Mad, Ad, St,d, Qg,d, Vdaf and GR.I., were analyzed and visualized based on the entity blocks model. The result shows that the indices Ad, St,d and Vdaf decrease from northwest to southeast along the coal seam burial depth increases while the Qg,d and GR.I. grow up.Furthermore, the 3D blocks model with faults embedded not only represents the actual spatial morphology of coal seam and faults structure vividly but gives a much more consulted recoverable coal resources calculation also.
引文
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[17]朱银萍.克里格法在建立地质模型应用中的研究[D].北京:中国地质大学(北京),2012.
[18]李章林,王平,张夏林.距离幂次反比法的改进与应用[J].金属矿山,2008(4):88-92.LI Zhanglin,WANG Ping,ZHANG Xialin.Improvement and application of inverse distance weighted method[J].Metal Mine,2008(4):88-92.
[19]牛仲行.河北省丰宁县大西沟金矿床三维地质建模及储量计算[D].北京:中国地质大学(北京),2014.
[20]陆刚.衰老矿井残煤可采性评价与复采技术研究[D].徐州:中国矿业大学,2010.
[21]彭世济,韩可琦.矿业经济导论[M].徐州:中国矿业大学出版社,1996:160-162.
[2]李青元,张丽云,魏占营,等.三维地质建模软件发展现状及问题探讨[J].地质学刊,2013,37(4):554-561.LI Qingyuan,ZHANG Liyun,WEI Zhanying,et al.On 3Dgeological modeling software development and discussions on several issues[J].Journal of Geology,2013,37(4):554-561.
[3]李青元,张洛宜,曹代勇,等.三维地质建模的用途、现状、问题、趋势与建议[J].地质与勘探,2016,52(4):759-767.LI Qingyuan,ZHANG Luoyi,CAO Daiyong,et al.Usage,status,problems,trends and suggestions of 3D geological modeling[J].Geology and Exploration,2016,52(4):759-767.
[4]WANG Gongwen,PANG Zhenshan,BOISVERT J B,et al.Quantitative assessment of mineral resources by combining geostatistics and fractal methods in the Tongshan porphyry Cu deposit(China)[J].Journal of Geochemical Exploration,2013,134:85-98.
[5]褚娜娜.基于3DMine软件三维地质模型在陕南汉阴长沟金矿中的应用[D].西安:长安大学,2012.
[6]王庆牛.煤系地层三维地质建模及可视化技术研究[D].焦作:河南理工大学,2010.
[7]荆永滨,杜学胜,张瑞林,等.复杂地质构造煤层三维模型自动构建技术[J].辽宁工程技术大学学报(自然科学版),2016,35(3):243-247.JING Yongbin,DU Xuesheng,ZHANG Ruilin,et al.Techniques for automatic 3D modeling of coal seam with complicated geological structure[J].Journal of Liaoning Technical University(Natural Science),2016,35(3):243-247.
[8]董前林,李青元,曹代勇,等.多源地质数据综合三维建模及地质学分析:以青海木里三露天勘探区为例[J].煤田地质与勘探,2017,45(3):37-44.DONG Qianlin,LI Qingyuan,CAO Daiyong,et al.3D modeling with integration of geological data of multi-sources and geological analysis:A case of Sanlutian exploration area of Muli,Qinghai[J].Coal Geology&Exploration,2017,45(3):37-44.
[9]魏竹斌,李青元,张明辉,等.基于煤层底板等高线的逆断层叠覆区全自动三角剖分[J].煤田地质与勘探,2018,46(1):28-34.WEI Zhubin,LI Qingyuan,ZHANG Minghui,et al.Method of full-automatic triangulation for reverse faults with overlapping area based on coal seam floor contour map[J].Coal Geology&Exploration,2018,46(1):28-34.
[10]李青元,董前林,贾会玲,等.三维地质建模技术及其在煤田构造中的应用[J].中国煤炭地质,2014,26(8):39-44.LI Qingyuan,DONG Qianlin,JIA Huiling,et al.3D geological modeling technology and its application on coalfield structural study[J].Coal Geology of China,2014,26(8):39-44.
[11]刘贝,黄文辉,敖卫华,等.淮南煤田煤质随埋深演化特征及煤变质作用研究[J].煤炭科学技术,2014,42(增刊1):270-273.LIU Bei,HUANG Wenhui,AO Weihua,et al.Study on evolution characteristics of coal quality and coal metamorphism with burial depth in Huainan coalfield[J].Coal Science and Technology,2014,42(S1):270-273.
[12]于得明,刘海燕,王东东,等.鲁西南地区煤类分布及煤变质作用类型分析[J].中国煤炭地质,2015,27(10):6-9.YU Deming,LIU Haiyan,WANG Dongdong,et al.Coal ranks distribution and coal metamorphism type analysis in southwestern Shandong[J].Coal Geology of China,2015,27(10):6-9.
[13]孟令国.开滦矿区炼焦煤特性及煤质变化趋势预测的研究[D].北京:北京化工大学,2013.
[14]左蔚然,何亚群,贺靖峰,等.峰峰煤田煤质预测管理信息系统的设计与实现[J].煤炭科学技术,2007,35(5):65-68.ZUO Weiran,HE Yaqun,HE Jingfeng,et al.Design and practice on coal quality prediction management information system of Fengfeng coal field[J].Coal Science and Technology,2007,35(5):65-68.
[15]李梅,董平,毛善君,等.地质矿山三维建模技术研究[J].煤炭科学技术,2005,33(4):46-49.LI Mei,DONG Ping,MAO Shanjun,et al.Research on 3Dmodeling technology for geology and mine[J].Coal Science and Technology,2005,33(4):46-49.
[16]曾庆田.复杂多金属矿床可视化模拟及其三维采矿设计技术研究[D].长沙:中南大学,2007.
[17]朱银萍.克里格法在建立地质模型应用中的研究[D].北京:中国地质大学(北京),2012.
[18]李章林,王平,张夏林.距离幂次反比法的改进与应用[J].金属矿山,2008(4):88-92.LI Zhanglin,WANG Ping,ZHANG Xialin.Improvement and application of inverse distance weighted method[J].Metal Mine,2008(4):88-92.
[19]牛仲行.河北省丰宁县大西沟金矿床三维地质建模及储量计算[D].北京:中国地质大学(北京),2014.
[20]陆刚.衰老矿井残煤可采性评价与复采技术研究[D].徐州:中国矿业大学,2010.
[21]彭世济,韩可琦.矿业经济导论[M].徐州:中国矿业大学出版社,1996:160-162.
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