[1]徐桂中,杨瑞敏,丁建文,等.高含水率疏浚泥堆场颗粒分选规律现场试验研究[J].东南大学学报(自然科学版),2013,43(3):634-638.[doi:10.3969/j.issn.1001-0505.2013.03.034]
 Xu Guizhong,Yang Ruimin,Ding Jianwen,et al.Field experiment on grain sorting behaviors in reclaimed land of dredged slurries with high water content[J].Journal of Southeast University (Natural Science Edition),2013,43(3):634-638.[doi:10.3969/j.issn.1001-0505.2013.03.034]
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高含水率疏浚泥堆场颗粒分选规律现场试验研究()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
43
期数:
2013年第3期
页码:
634-638
栏目:
土木工程
出版日期:
2013-05-20

文章信息/Info

Title:
Field experiment on grain sorting behaviors in reclaimed land of dredged slurries with high water content
作者:
徐桂中1杨瑞敏2丁建文2沈敏怡2洪振舜2
1河海大学岩土工程科学研究所, 南京 210098; 2东南大学岩土工程研究所, 南京 210096
Author(s):
Xu Guizhong1 Yang Ruimin2 Ding Jianwen2 Shen Minyi2 Hong Zhenshun2
1Geotechnical Research Institute, Hohai University, Nanjing 210098, China
2Institute of Geotechnical Engineering, Southeast University, Nanjing 210096, China
关键词:
疏浚泥 颗粒分选 粒径分布 界限含水率 含水率
Keywords:
dredged slurries grain sorting grain-size distribution Atterberg limit water content
分类号:
TU447
DOI:
10.3969/j.issn.1001-0505.2013.03.034
摘要:
为了探讨疏浚泥堆场中的颗粒分选规律,依托江苏省南水北调东线金湖金宝航道N1堆场吹填工程开展现场试验,测定吹填完成后堆场内不同位置疏浚泥的粒径分布、含水率、界限含水率等.试验结果表明:颗粒粒径沿水平方向逐渐变细,颗粒发生显著分选,而垂直方向上的分选程度明显小于水平方向.根据颗粒的分布规律,沿远离吹填口方向,疏浚泥可分为3个区:粗颗粒区、粒径变化区和细颗粒区.受颗粒分布规律的影响,疏浚泥的黏粒含量、含水率及液塑限在粗颗粒区均较小,在细颗粒区均较大,在粒径变化区随距吹填口距离的增加而增加.试验结果还显示,分选后疏浚泥在塑性图中沿A线分布,并位于A线同侧,活动度也基本相等.
Abstract:
In order to understand the grain sorting behaviors in the reclaimed land of dredged slurries, field tests were carried out by measuring different locations grained-size distribution, water content and Atterberg limit in N1 storage yard of Jinbao Channel in Jiangsu province. The test results show that the grain size decreases gradually along the horizontal direction and the trend in the vertical direction is less significant than that in the horizontal direction. According to the grain distribution of the dredged slurries, the storage yard is divided into three areas, namely coarser grain area, grain-size changing area and fine grain area. Because of the effect of grain sorting, the clay content, water content and Atterberg limits are smaller in coarser grain area and are larger in fine grain area, while in the middle area these parameters increase along the direction from coarser grain area to fine grain area. The results also show that the slurries locate at the same side of line A in plasticity chart when they are in the process of grain sorting and their activities are nearly equal to each other.

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相似文献/References:

[1]杨瑞敏,徐桂中,丁建文,等.堆场疏浚泥颗粒分选规律及机理[J].东南大学学报(自然科学版),2013,43(3):639.[doi:10.3969/j.issn.1001-0505.2013.03.035]
 Yang Ruimin,Xu Guizhong,Ding Jianwen,et al.Grain sorting laws and mechanisms in reclaimed land of dredged slurries[J].Journal of Southeast University (Natural Science Edition),2013,43(3):639.[doi:10.3969/j.issn.1001-0505.2013.03.035]

备注/Memo

备注/Memo:
作者简介: 徐桂中(1982—),男,博士生;丁建文(联系人),男,博士,副教授,jwding2006@163.com.
基金项目: 国家自然科学基金资助项目(51178107,51109070)、江苏省普通高校研究生科研创新计划资助项目(CXZZ12-0109).
引文格式: 徐桂中,杨瑞敏,丁建文,等.高含水率疏浚泥堆场颗粒分选规律现场试验研究[J].东南大学学报:自然科学版,2013,43(3):634-638. [doi:10.3969/j.issn.1001-0505.2013.03.034]
更新日期/Last Update: 2013-05-20