粗粒土渗透试验缩尺原则与方法探讨

谢定松; 蔡红; 魏迎奇; 李维朝

doi:10.11779/CJGE201502023

粗粒土渗透试验缩尺原则与方法探讨 English Version

中国水利水电科学研究院流域水循环模拟与调控国家重点实验室,北京 100048

基金项目: 国家重点基础研究发展计划（973计划）（2014CB047004）

详细信息

作者简介:
谢定松(1977- ),男,高级工程师,主要从事岩土工程渗流控制及安全评价方面研究。E-mail: xieds@iwhr.com。

中图分类号: TU47
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- 收稿日期: 2014-05-19
- 发布日期: 2015-03-01

Scaling principle and method in seepage tests on coarse materials

State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100048, China

摘要

摘要: 试验规程规范对渗透试验的超粒径缩尺方法没有明确规定。探讨渗透试验超粒径缩尺方法具有现实意义。通过室内试验,揭示了粗粒料不同缩尺方法对渗透试验结果的影响,提高试验成果的合理性。试验结果表明：相似级配法常用于力学强度试验,但不适用于渗透试验;等量替代法只是用中间粒径替代了超粒径部分,建议渗透试验缩尺时能尽量保持30%~40%细粒含量不变,以减少细粒含量变化对渗透系数的影响。
- 渗透试验 /
- 超径处理 /
- 缩尺方法 /
- 渗透系数
Abstract: China's code for seepage tests does not specify the scaling method for oversize treatment, and this problem will disturb testers. The discussion of scaling method for the oversize treatment is of practical significance. The impact of scaling method for the oversize treatment of the results of seepage tests is revealed through laboratory experiments so as to improve the rationality of the test results. The results show that the similar grading method is commonly used in the mechanical strength tests, but not suitable for seepage tests. The equivalent alternative method is only used in the situation that the middle size substitutes the oversize portion. It is suggested that the oversize treatment of seepage tests should keep 30%~40% of fine content unchanged in order to reduce the impact of changes of the fine content on permeability coefficient.
- seepage test /
- oversize treatment /
- scaling method /
- permeability coefficient

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参考文献(7)

[1]	傅华, 韩华强, 凌华. 堆石料级配缩尺方法对其室内试验结果的影响[J]. 岩土力学, 2012, 33(9): 2645-2649. (FU Hua, HAN Hua-qiang, LING Hua. Effect of grading scale method on results of laborrtory on rockfill materials[J]. Rock and Soil Mechanics, 2012, 33(9): 2645-2649. (in Chinese))
[2]	朱国胜, 张家发, 陈劲松, 等. 宽级配粗粒土渗透试验尺寸效应及边壁效应研究[J]. 岩土力学, 2012, 33(9): 2569-2574. (ZHU Guo-sheng, ZHANG Jia-fa, CHEN Jin-song, et al. Study of size of wall effects in seepage test of broadly graded coarse materials[J]. Rock and Soil Mechanics, 2012, 33(9): 2569-2574. (in Chinese))
[3]	朱国胜, 张家发, 张伟, 等. 宽级配粗粒料渗透试验方案探讨[J].长江科学院院报, 2009, 26(增刊): 10-13. (ZHU Guo-sheng, ZHANG Jia-fa, ZHANG Wei, et al. Discussion of seepage test method for broadly graded coarse material[J]. Journal of Yangtze River Scientific Research Institute, 2009, 26(S0): 10-13. (in Chinese))
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粗粒土渗透试验缩尺原则与方法探讨 English Version

作者简介: 谢定松(1977- ),男,高级工程师,主要从事岩土工程渗流控制及安全评价方面研究。E-mail: xieds@iwhr.com。

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出版历程

Scaling principle and method in seepage tests on coarse materials

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出版历程

目录

作者简介:
谢定松(1977- ),男,高级工程师,主要从事岩土工程渗流控制及安全评价方面研究。E-mail: xieds@iwhr.com。