| 低延展性裂隙岩体REV存在性研究 |
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| 引用本文： | 张莉丽,王云,张辛,王允,于青春.低延展性裂隙岩体REV存在性研究[J].现代地质,2013,27(3):743-749. |
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| 作者姓名： | 张莉丽 王云 张辛 王允 于青春 |
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| 作者单位： | 1华北有色工程勘察院有限公司，河北 石家庄050024;
2中国矿业大学 地球科学与测绘工程学院，北京100083;
3中国地质大学 水资源与环境学院，北京100083;
4徐州建筑职业技术学院，江苏 徐州221116;
5北京市华清地热开发有限责任公司，北京102218 |
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| 摘 要： | 采用自行开发的离散元软件FractureToKarst，根据国际岩石力学协会对岩石的分类，讨论了低延展性裂隙岩体典型单元体(REV)的存在性及大小，并给出确定其存在性的一般方法。根据研究结果可知，低延展性裂隙岩体REV存在的条件为裂隙平均间距在0.6 m以下，即极密间距、很密间距、密间距和中等间距裂隙岩体存在REV;裂隙平均间距大于0.6 m，即宽间距、很宽间距和极宽间距裂隙岩体不存在REV。
关键词：裂隙岩体；渗流；典型单元体(REV)；离散元
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| 关 键 词： | 裂隙岩体 渗流 典型单元体(REV) 离散元 |
| 收稿时间： | 2011-04-20 |
| 修稿时间： | 2013-04-27 |
Determination of the REV for Fractured Rock Mass of the Low Ductility |
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| ZHANG Li-li
,
WANG Yun
,
ZHANG Xin
,
WANG Yun
,
YU Qing-chun.Determination of the REV for Fractured Rock Mass of the Low Ductility[J].Geoscience——Journal of Graduate School,China University of Geosciences,2013,27(3):743-749. |
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| Authors: | ZHANG Li-li WANG Yun ZHANG Xin WANG Yun YU Qing-chun |
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| Institution: | 1 North China Engineering Investigation Institute Co., Ltd, Shijiazhuang, Hebei050024, China;
2 College of Geoscience and Surveying Engineering, China University of Mining & Technology, Beijing100083, China;
3School of Water Resources and Environment, China University of Geosciences, Beijing100083, China;
4Xuzhou Institute of Architectural Technology, Xuzhou, Jiangsu221116, China;
5Beijing Huaqing Geothermal Exploitation Company Ltd., Beijing102218, China |
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| Abstract: | The FractureToKarst software which is a main analysis tool in this paper and developed by the listed authors,is a DFN(Discrete Fracture Network) software.According to the Standard of Rock Fracture Classification established by ISRM in 1978,this paper discussed the existence and sizes of representative elementary volume(REV) of low-ductility fractured rock masses using the FractureToKarst and proposed a general method to determine the existence of REV.Combined with the existing study of the fractured-rock flow,the major results are concluded as follows:(1)in the rock masses when their average spacing is less than 0.6 m,the REV exists;(2)when their average spacing is more than 0.6 m,the REV does not exist. |
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| Keywords: | fractured rock mass percolation flow representative elementary volume (REV) discrete element |
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