[1]熊良宵,于宇,虞利军..层状岩体双轴压缩变形试验的数值分析研究[J].郑州大学学报(工学版),2012,33(05):5-9.[doi:10.3969/j.issn.1671-6833.2012.05.002]
　XIONG Liangxiao,YU Yu,YU Lijun.The Numerical Analysis Study of Biaxial Compression Testfor Interlayered Rock Mass[J].Journal of Zhengzhou University (Engineering Science),2012,33(05):5-9.[doi:10.3969/j.issn.1671-6833.2012.05.002]
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层状岩体双轴压缩变形试验的数值分析研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
33卷
期数:
2012年05期
页码:
5-9
栏目:
出版日期:
2012-09-10

文章信息/Info

Title:
The Numerical Analysis Study of Biaxial Compression Testfor Interlayered Rock Mass
作者:
熊良宵; 于宇; 虞利军.
宁波大学建筑工程与环境学院,浙江宁波315211;成都理工大学地质灾害防治与地质环境保护国家重点实验室,四川成都,610059, 核工业西南勘察设计研究院有限公司,四川成都,610061, 浙江省岩土基础公司,浙江宁波,315040
Author(s):
XIONG Liangxiao; YU Yu; YU Lijun
1. Faculty of Architeclural, Civil Engineering and Environment, Ningbo University, Ningbo 315211, China:2. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, China; 3Limited company of Nuclear lndstry Southwest Institute of Suvrver and Design, Chengdu 610061 ,china; 4. 2hejiang Geotechnical&Foundation Companay,Ningbo 315040,China
关键词:
层状岩体;  FLAC3D;  双轴压缩破坏强度;  体积含量
Keywords:
interlayered rock mass;  FLAC; biaxial compression strength; volumetric content
分类号:
TU45
DOI:
10.3969/j.issn.1671-6833.2012.05.002
摘要:
以绿片岩和大理岩组成的层状岩体为研究对象,采用FLAC3D对互层状岩体进行了双轴压缩变形试验的数值分析,在数值分析中考虑荷载方向与层理之间的几何关系、大理岩夹层的体积含量和侧压比的影响.研究结果表明,双轴压缩条件下,轴向荷载方向平行于层理、侧向荷载方向垂直于层理时的破坏强度最大,轴向荷载方向垂直于层理、侧向荷载方向平行于层理时的破坏强度次之,轴向和侧向荷载方向均平与层理时的的破坏强度最小；当轴向荷载方向斜交于层理、侧向荷载方向平行于层理时,随着夹层倾角由0°增加至90°时,层状岩体的破坏强度呈先增大后减小的规律；随着侧压比由0增加到1.0时,层状岩体的双轴压缩破坏强度呈先增大后减小的规律.
Abstract:
This paper studies the interlayered rock mass composed of greenschist and marble, the numerical a-nalysis of biaxial compression tests for interlayered rock mass was done by using FLAC3D. Lots of inlluencingfactors such as geometric relationship, volumetric content of marble interlayer and the ratio between lateralstress and axial stress were taken into account in the numerical analysis. The research results show that the bi-axial compression strength when axial loading orientation is parallel to bedding plane and lateral loading orien.tation is perpendicular to bedding plane is largest, and when both axial and lateral loading orientations are par.allel to bedding plane is smallest. The biaxial compression strength will increase firstly and then decrease laterwhen the dip angle of interlayer inereases from 0° to 90° if both axial and lateral loading orientations are paral-lel to bedding plane. The biaxial compression strength will increase firstly and then deerease later when the ra-tio between lateral stress and axial stress increases from 0 to l.0.

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更新日期/Last Update: 1900-01-01