中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2011, Vol. 30 ›› Issue (6): 1359-1362.DOI: 10.3969/j.issn.1674-0696.2011.06.23

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间歇性泡水对砂岩力学性能的影响研究

何 叶1 ,赵明阶1 ,杨艳萍2 ,龙腾辉3   

  1. 1.重庆交通大学河海学院,重庆400074;2.云南省航务管理局,云南昆明650021; 3.重庆同乘工程咨询设计有限责任公司,重庆400023)
  • 收稿日期:2011-06-20 修回日期:2011-07-18 出版日期:2011-12-15 发布日期:2015-01-22
  • 作者简介:何叶(1984—),女,湖南益阳人,硕士研究生,主要从事结构、岩土方面的研究。E-mail:heye.1984@163.com。
  • 基金资助:
    云南省交通厅科技项目资助(YN2009SY02)

Influence of Intermittent Saturation on Mechanical Properties of Sandstone

HE Ye1,ZHAO Ming-jie1,YANG Yan-ping2 ,LONG Teng-hui3   

  1. 1.School of River&Ocean Engineering,Chongqing Jiaotong University,Chongqing 400074,China; 2.Yunnan Flight Operations Administration Bureau,Kunming 650021,Yunnan,China; 3.Engineering Consulting and Design Co.Ltd.of Chongqing Tongeheng,Chongqing 400023,China
  • Received:2011-06-20 Revised:2011-07-18 Online:2011-12-15 Published:2015-01-22

摘要: 结合现场采样和三轴试验,以工程中较常见的砂岩为例,设计了不同泡水次数,对砂岩进行了间歇性泡水试验 和力学指标测试。通过对天然状态和不同泡水次数下砂岩力学指标的比较分析,研究了间歇性泡水前后砂岩力学 性能的变化规律。研究结果表明:随着间歇性泡水次数的增加,砂岩的抗压强度、黏聚力和内摩擦角都呈下降趋势, 其变化规律基本符合指数分布。

关键词: 岩石力学, 间歇性泡水, 力学性能, 试验研究

Abstract: Combining with field sampling and tri-axial test,and taking sandstone which is common in project for example, difierent saturation numbers are designed. Then intermittent saturation trial and mechanical index test are conducted. Through comparative analysis of mechanical index of sandstone under n~ural state and different saturation number,research about the change regularity on mechanical properties of sandstone before and after intermittent saturation is carried out.The results show that:with the increase of intermittent saturation numb er,the compressive strength,cohesion and internal fric- tion angle of sandstone all show a downward trend and their varying regularities probably conforin to an exponent curve.

Key words: rock mechanics, interm ittent saturation, mechanical properties, experimental research

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