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块石颗粒形状对碎石土渗流特性影响研究
Alternative TitleResearch on the effect of rubble shape on the seepage characteristics of graqvel soil
韩培锋1; 孔纪名2; 田述军1; 樊晓一1; 胡升伟3
Corresponding Author韩培锋
2016
Source Publication浙江工业大学
ISSN1006-4303
Volume44Issue:3Pages:316-320
AbstractGravel soil is composed of rubbles with different sizes and shapes.The rubble shape
affects the internal microstructure and the seepage characteristics.Based on the microstructure
model of gravel soil,rubbles with various shapes are simplified as circular,square,hexagonal,
and octagonal rubbles and the effect of rubble shape on the seepage characteristics is analyzed.It
is found that the seepage discharge in gravel soil is different for different rubble shapes.With the
increase of the porosity,the effect of rubble shape on the seepage characteristics of gravel soil is
more significant.The constant head seepage test shows that the difference in the permeability
coefficient is obvious for different rubble shapes and the permeability coefficient of regular
(approximately cubic)stone is the maximum, whereas that of shale (approximately
polyhedronal)particles is the minimum.The results of numerical simulation are in good
agreement with those of the constant head seepage test,which verifies the validity of the
numerical simulation.
Other Abstract碎石土是由不同形状的块石颗粒组成,块石颗粒形状不仅会影响碎石土内部的细观结构,也会影响其渗流特性.基于碎石土细观结构模型,将不同形状的块石颗粒简化为圆形、正方形、正六边形和正八边形,分析块石形状对碎石土的渗流特性影响.发现不同形状块石组成的碎石土中水的渗流量不同,随着孔隙率增大,块石形状对其渗流特性的影响越明显.常水头渗流试验表明:不同形状块石,渗透系数差异明显,其中规则块石(近似正方体)渗透系数最大,泥岩颗粒(近似多面体)渗透系数最小.数值模拟试验结果与常水头试验结果二者的规律吻合,说明数值模拟试验结果可靠. 
Keyword碎石土 块石颗粒形状 细观结构 数值模拟
Indexed By北大中文核心
Language中文
Funding Organization国家自然科学基金资助项目(41401195 ; 41272297) ; 四川省科技支撑计划资助项目(2014SZ0058 ; 2015SZ0217) ; 清华大学水沙科学与水利水电工程国家重点实验室开放基金资助项目(sklhse-2016-D-04)
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/17499
Collection山地灾害与地表过程重点实验室
Affiliation1.西南科技大学土木工程与建筑学院
2.中国科学院山地灾害与地表过程重点实验室/中国科学院水利部成都山地灾害与环境研究所
3.中国电建集团成都勘测设计研究院有限公司
Recommended Citation
GB/T 7714
韩培锋,孔纪名,田述军,等. 块石颗粒形状对碎石土渗流特性影响研究[J]. 浙江工业大学,2016,44(3):316-320.
APA 韩培锋,孔纪名,田述军,樊晓一,&胡升伟.(2016).块石颗粒形状对碎石土渗流特性影响研究.浙江工业大学,44(3),316-320.
MLA 韩培锋,et al."块石颗粒形状对碎石土渗流特性影响研究".浙江工业大学 44.3(2016):316-320.
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