[1]梅群力1,陈清运2,黄 杰2,等.金山店铁矿东区膨胀岩形成机理及预测[J].武汉工程大学学报,2015,37(10):16-22.[doi:10. 3969/j. issn. 1674-2869. 2015. 10. 004]
,,et al.Formation mechanism and prediction of expansive rock at east area of Jinshandian iron mine[J].Journal of Wuhan Institute of Technology,2015,37(10):16-22.[doi:10. 3969/j. issn. 1674-2869. 2015. 10. 004]
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]
- 卷:
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37
- 期数:
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2015年10期
- 页码:
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16-22
- 栏目:
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资源与土木工程
- 出版日期:
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2015-10-31
文章信息/Info
- Title:
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Formation mechanism and prediction of expansive rock at east area of Jinshandian iron mine
- 文章编号:
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1674-2869(2015)10-0016-07
- 作者:
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梅群力1; 陈清运2; 黄 杰2; 彭静波2; 陈星亮3
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1.中国黄金集团新疆金滩矿业有限公司,新疆 鄯善 838200;2.武汉工程大学资源与土木工程学院,湖北 武汉 430074;3.武汉工程大学机电工程学院, 湖北 武汉 430074
- Author(s):
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MEI Qun-li1; CHEN Qing-yun2; HUANG Jie2; PENG Jing-bo2; CHEN Xing-liang3
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1.China Nation Gold Group Xinjiang Jintan Mineral & company,Ltd., Shanshan 838200,China;2.School of Resource and Civil Engineering,Wuhan Institute of Technology,Wuhan 430074,China; 3.School of Mechanical and Electrical Engineering,Wuhan Institute of Technology,Wuhan 430074,China
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- 关键词:
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膨胀岩成因; 蒙脱石化; X射线衍射; 电子能谱仪; 电镜扫描
- Keywords:
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formation mechanism of expansive rock; montmorillonite; X ray diffraction; electron energy spectrometer; scanning electron microscope
- 分类号:
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P624
- DOI:
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10. 3969/j. issn. 1674-2869. 2015. 10. 004
- 文献标志码:
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A
- 摘要:
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为弄清金山店铁矿东区膨胀岩形成机理,分别用X射线衍射仪、扫描电镜和电子能谱仪检测和鉴定膨胀岩中膨胀矿物的种类、含量及膨胀岩的原岩. 检测和鉴定结果表明,膨胀物主要是蒙脱石,其次为伊利石和高岭石,膨胀岩的原岩为石英闪长岩. 在此基础上,对东区工程地质特征、膨胀岩形成的物质基础和动力条件进行了系统分析,揭示出膨胀岩体的低温热液蚀变、强膨胀岩体的地质构造、近矿强膨胀岩的热力接触变质等3种膨胀岩的形成机理,并提出了下盘膨胀岩分布具有条带性、大理岩层缺失部位即为膨胀岩、膨胀岩的膨胀性与岩体的破裂程度呈正比的发育规律. 根据研究成果,预测膨胀岩主要分布在34-40勘探线间,中间厚度在90 m左右,具有两端薄中间厚的特点.
- Abstract:
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To investigate the formation mechanism of the expansive rock at the east part of Jin Shandian iron mine,the types and their contents of the expandable mineral, the original rock in the expansive rocks were measured by using X-ray diffraction, scanning electron microscope and electron spectrometer. The test results show that the expandable minerals are mainly montmorillonite, followed by illite and kaolinite, and the original rock of the swelling rocks is quartz diorite. The engineering geological characteristics, the formation mechanism and the dynamic conditions of the expansive rock at east area were analyzed systematically. Three formation mechanisms: the low temperature hydrothermal alteration of expansive rock, the geological structure of strong expansive rock and thermal contact metamorphism of strong expansive rock near the mineral were suggested. The growth patterns of the expansive rock including the stripped distribution at the footwall, and the missing part of the marble stratum corresponding to expansive rock, and directly proportional relationship between the expansibility and the degree of fracture were also revealed. It is predicted that the expansive rock is mainly located in the 34-40 exploration line, with a distribution of the thickest part of 90 m in the middle, and thinnest part at the two ends.
参考文献/References:
[1] 曲永新,张永双,杨俊峰,等.中国膨胀性岩、土一体化工程地质分类理论与实践[C]//中国地质50年.北京:地震出版社,2000.QU Yong-xin,ZHANG Yong-shuang, YANG Jun-feng,et al.The theory and practice of engineering geological classification of expansive rock and soil in China[C]//China Geology 50 Years.Beijing:Seismological Press,2000.(in Chinese)[2] 顾宝和,曲永新.劣质岩(问题岩)的类型及其工程特征[J].工程勘察,2006,34(1):1-7.GU Bao?鄄he,QU Yong?鄄xin. Types and engineering characteristics of poor bad rock(problem rock)[J]. Journal of Geotechnical Investigation & Surveying.2006,34(1):1-7.(in Chinese)[3] 曲永新,徐晓岚,时梦熊,等.泥质岩的工程分类和膨胀势的快速预测[J].水文地质工程地质,1988(5):36-39.QU Yong-xin,XU Xiao-lan,SHI Meng-xiong,et al.The engineering classification of mud rock and its rapid forecast of swelling power[J]. Journal of Hydrogeology and Engineering Geology,1988(5):36-39.(in Chinese)[4] 朱训国,杨庆. 膨胀岩的判别与分类标准. 岩土力学[J],2009,30(增刊2):174-177.ZHU Xun-guo, YANG Qing. Identification and classification of swelling rock. Rock and Soil Mechanics[J],2009,30(Suppl.2):174-177.(in Chinese)[5] 张永双,曲永新,刘景儒,等.滇藏铁路滇西北段蒙脱石化蚀变岩的工程地质研究[J].岩土工程学报,2007,29(4):531-536.ZHANG Yong-shuang, QU Yong-xin,LIU Jing-ru,et al. Engineering geological research on altered rocks in the area of NW Yunnan along Yunnan-Tibet Railway line[J]. Chinese Journal of Geotechnical Engineering, 2007,29(4):531-536.(in Chinese)[6] 赵杏媛. 粘土矿物在油气初次运移中作用的探讨[J]. 沉积学报,1990,8(2):67-73.ZHAO Xing-yuan. Discussion on the effect of clay minerals in primary migration of petroleum[J]. Acta Sedimentologica Sinica,1990,8(2):67-73.(in Chinese)
备注/Memo
- 备注/Memo:
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收稿日期:2015-10-08基金项目:国家自然科学基金(51374049)作者简介:梅群力(1964-),男,河北石家庄人,高级工程师. 研究方向:矿山工程技术及管理.
更新日期/Last Update:
2015-11-08