+高级检索
部分充填周期性裂隙岩体渗流理论分析与试验
DOI:
作者:
作者单位:

作者简介:

通讯作者:

基金项目:


Theoretical Analysis and Experiment on Seepage of Rock Mass Containing Periodic Fractures with Partial Filling
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
    摘要:

    为研究部分充填周期性裂隙岩体的渗流特性,建立了岩体渗流分析模型. 基于无充填裂隙中流体满足Navier-Stokes方程和多孔介质中渗流满足Brinkman-extended Darcy方程,采用不同介质交界面流速相等且剪应力连续的边界条件,推求出部分充填周期性裂隙岩体中流体的流速分布,并给出了岩体等效渗透率的理论表达式. 研制渗透试验装置,选用混凝土模拟岩石基质,混凝土间的缝隙模拟岩体裂隙,砂岩模拟充填物,进行部分填充裂隙岩体的等效渗透试验. 试验测得的结果与理论计算值相比,二者差值很小,试验很好地验证了等效渗透率表达式的有效性.

    Abstract:

    In order to study the seepage characteristics of rock mass containing periodic fractures with partial filling, an analysis model for the seepage of rock mass was built. Two boundary conditions were given for the interfaces between different medium in the model: 1) equal velocity; and 2) continuous shear stress. According to the given conditions, the velocity distribution in the fractures was deduced by using the Navier-Stokes equation and that in porous medium was deduced by using the Brinkman-extended Darcy equation. The equivalent permeability of rock mass containing periodic fractures without partial filling was also derived. A test equipment was made to carry out the equivalent permeability tests. In the tests, concrete and sandstone were used to simulate rock and filling fractures between two pieces of concrete. The difference of the results measured by tests and the equivalent permeability calculated from the theoretical expression was very small. The test result validates well the derived expression.

    参考文献
    相似文献
    引证文献
文章指标
  • PDF下载次数:
  • HTML阅读次数:
  • 摘要点击次数:
  • 引用次数:
引用本文

舒付军,符文熹,魏玉峰,夏伟.部分充填周期性裂隙岩体渗流理论分析与试验[J].湖南大学学报:自然科学版,2018,45(1):114~120

复制
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2018-02-26
  • 出版日期:
作者稿件一经被我刊录用,如无特别声明,即视作同意授予我刊论文整体的全部复制传播的权利,包括但不限于复制权、发行权、信息网络传播权、广播权、表演权、翻译权、汇编权、改编权等著作使用权转让给我刊,我刊有权根据工作需要,允许合作的数据库、新媒体平台及其他数字平台进行数字传播和国际传播等。特此声明。
关闭