| Cite this article: | 吕国顺,张豫川,赵野.非饱和压实黄土入渗速率规律研究[J].灌溉排水学报,,():-. |
| LV Guo-shun,ZHANG Yu-chuan,ZHAO Ye.非饱和压实黄土入渗速率规律研究[J].灌溉排水学报,,():-. |
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| DOI： |
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| Study on Infiltration Velocity of Unsaturated Compacted Loess |
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LV Guo-shun, ZHANG Yu-chuan, ZHAO Ye
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College of Civil Engineering and Mechanics,Lanzhou University
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| Abstract: |
| The development law of infiltration velocity of loess is one of the keys to grasp the infiltration process and seepage characteristics of loess. In order to obtain the variation law of infiltration velocity of compacted loess, the indoor model test was designed, with the compaction degree as the variable, including horizontal headless infiltration and vertical fixed head infiltration test. Monitoring the change of soil volume moisture content and matric suction during seepage process, and then calculating the infiltration velocity.It is found that the infiltration velocity of compacted loess is related to the compacting coefficient, which decreases with the increase of compacting degree;It gradually attenuates with the penetration distance and depth;It decays gradually with the penetration time. The horizontal and vertical penetration velocity were fitted with penetration time and penetration distance, the results show that all of them follow the power function. |
| Key words: Unsaturated; Compacted loess; Penetration velocity; Matric suction; Compaction coefficient. |
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