欢迎访问现代地质!

现代地质 ›› 2013, Vol. 27 ›› Issue (3): 743-749.

• 工程地质 • 上一篇    下一篇

低延展性裂隙岩体REV存在性研究

张莉丽1,2,王云3,张辛4,王允5,于青春3   

  1. 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
  • 收稿日期:2011-04-20 修回日期:2013-04-27 出版日期:2013-06-07 发布日期:2013-06-08
  • 通讯作者: 于青春,男,教授,1963年出生,水文地质学专业,主要从事水文地质、工程地质、环境地质问题研究。
  • 作者简介:张莉丽,女,博士后,1978年出生,水文地质学专业,主要从事裂隙水、岩体稳定性及渗透性问题研究。Email:zhanglili168@126.com。
  • 基金资助:

    国家自然科学基金项目(40372134)。

Determination of the REV for Fractured Rock Mass of the Low Ductility

ZHANG Li-li1,2, WANG Yun3, ZHANG Xin4, WANG Yun5, YU Qing-chun3   

  1. 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;
    3School of Water Resources and Environment, China University of Geosciences, Beijing100083, China;
    4Xuzhou Institute of Architectural Technology, Xuzhou, Jiangsu221116, China;
    5Beijing Huaqing Geothermal Exploitation Company Ltd., Beijing102218, China
  • Received:2011-04-20 Revised:2013-04-27 Online:2013-06-07 Published:2013-06-08

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

关键词: 裂隙岩体, 渗流, 典型单元体(REV), 离散元

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.

Key words: fractured rock mass, percolation flow, representative elementary volume(REV), discrete element

中图分类号: