双环注水试验装置的研制及其应用
发布时间：2018-10-21 14:48
【摘要】：针对现有双环注水试验装置在高渗透性土体中应用时的缺陷,研制了一套轮换注水式双环注水试验装置。该装置由注水系统和供水系统组成,巧妙地采用了在内环、外环中分别设置两组流量瓶向环内轮换注水,外接水箱向注空的流量瓶中供水的结构设计,保证了试验过程环内水头高度的稳定和连续注水。采用新研制的试验装置测试安哥拉格埃路地层(Quelo)棕红色砂土的渗透系数,获得了满意的应用效果。试验结果表明:安哥拉Quelo砂在天然状态下的渗透系数在10~(-3)~10~(-2) cm/s数量级,经压实后(重型击实试验控制,压实系数λ≥0.95)可降低1~3个数量级;在同一孔隙比下,现场双环注水试验结果高于室内变水头渗透试验结果约0.5个数量级。
[Abstract]:In view of the defects of the existing double ring water injection test device in high permeability soil, a set of rotation double ring water injection test device was developed. The device consists of a water injection system and a water supply system. The structure design of water supply in the inner ring and the outer ring is skillfully adopted. Two groups of flow bottles are arranged in the inner ring and the outer ring respectively to rotate water injection into the ring, and the external water tank supplies water to the empty flow bottle. The stability of the head height in the ring and the continuous water injection are ensured during the test. The permeability coefficient of (Quelo) brown-red sand in Geelu formation of Angola has been tested with a newly developed test device and satisfactory application results have been obtained. The results show that the permeability coefficient of Angolan Quelo sand in natural state ranges from 10 ~ (-3) to 10 ~ (-2) cm/s, and the compaction coefficient 位 鈮，
本文编号：2285429
[Abstract]:In view of the defects of the existing double ring water injection test device in high permeability soil, a set of rotation double ring water injection test device was developed. The device consists of a water injection system and a water supply system. The structure design of water supply in the inner ring and the outer ring is skillfully adopted. Two groups of flow bottles are arranged in the inner ring and the outer ring respectively to rotate water injection into the ring, and the external water tank supplies water to the empty flow bottle. The stability of the head height in the ring and the continuous water injection are ensured during the test. The permeability coefficient of (Quelo) brown-red sand in Geelu formation of Angola has been tested with a newly developed test device and satisfactory application results have been obtained. The results show that the permeability coefficient of Angolan Quelo sand in natural state ranges from 10 ~ (-3) to 10 ~ (-2) cm/s, and the compaction coefficient 位 鈮，
本文编号：2285429
本文链接：https://www.wllwen.com/jianzhugongchenglunwen/2285429.html
