中文核心期刊
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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2016, Vol. 35 ›› Issue (5): 97-102.DOI: 10.3969/j.issn.1674-0696.2016.05.20

• 港口航道·水利水电·资源环境 • 上一篇    下一篇

不同掺砾量心墙料渗透及压缩试验研究

孙莉萍，齐俊修   

  1. （中国电建集团 北京勘测设计研究院有限公司，北京100024）
  • 收稿日期:2015-07-02 修回日期:2015-10-20 出版日期:2016-10-20 发布日期:2016-10-31
  • 作者简介:第一作者：孙莉萍（1968—），女，北京人，高级工程师，主要从事岩土力学试验方面的研究。E-mail:wj1998915@sohu.com。

Study of Penetration Test and Compression Test on Core Material of Different Gravel Amounts

SUN Liping，QI Junxiu   

  1. (Power China Beijing Engineering Corporation Limited, Beijing 100024,P.R.China)
  • Received:2015-07-02 Revised:2015-10-20 Online:2016-10-20 Published:2016-10-31

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摘要： 借鉴国内类似工程经验，针对拟定的不同掺砾组合进行了大量的试验研究，并对重点掺配比例的土料进行了渗透、压缩性能研究。研究表明：掺砾量在35%~55%范围内变动时，在防渗性能均满足设计要求的同时，压缩性能指标得到很大提高，压应力3.2 MPa下，压缩模量由原来的46.2 MPa提高到92.5~95.6 MPa。建议依托工程掺砾比例不宜超过50%，最终掺砾比例为45%。

关键词: 水利水电工程, 心墙堆石坝, 防渗土料, 掺砾试验

Abstract: The experience of similar projects in China were consulted and many tests conducted on the different mixed gravel. In addition, research on the permeability and compression performance of the key proportion of soil materials were carried out simultaneously. Test results show that: When the proportion of gravel in the range of 35%~55%, compression performance index are improved greatly with the antiseeping criterion up to the design requirements.When the compressive stress is 3.2 MPa, the compression modulus increased from 46.2 MPa to 92.5~95.6 MPa, which is 2 times more than that of the original. Thus, the suggested proportion of the gravel in this project be no more than 50% and the final proportion applied is 45%.

Key words: water conservancy and hydropower engineering;core rockfill dam, impervious soil, mixing gravel test

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