[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):639-643.[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):639-643.[doi:10.3969/j.issn.1001-0505.2013.03.035]
点击复制

堆场疏浚泥颗粒分选规律及机理()
分享到:

《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:
639-643
栏目:
土木工程
出版日期:
2013-05-20

文章信息/Info

Title:
Grain sorting laws and mechanisms in reclaimed land of dredged slurries
作者:
杨瑞敏1徐桂中2丁建文1耿威1洪振舜1
1东南大学岩土工程研究所, 南京 210096; 2河海大学岩土工程科学研究所, 南京 210098
Author(s):
Yang Ruimin1 Xu Guizhong2 Ding Jianwen1 Geng Wei1 Hong Zhenshun1
1 Institute of Geotechnical Engineering, Southeast University, Nanjing 210096, China
2 Geotechnical Research Institute, Hohai University, Nanjing 210098, China
关键词:
疏浚泥 颗粒分选 土性分布 两相流
Keywords:
dredged slurries grain sorting distribution of soil properties two-phase flow
分类号:
TU447
DOI:
10.3969/j.issn.1001-0505.2013.03.035
摘要:
为了确定大面积高含水率疏浚泥堆场的处理面积和选择经济、合理的处理技术,对吹填时堆场内疏浚泥颗粒的分选规律及机理进行了研究.系统调查了南水北调东线江苏段金宝航道N1疏浚泥堆场,并对距离吹填口不同位置、不同深度的疏浚泥进行取样.土样的颗粒分析试验结果表明:堆场内疏浚泥颗粒粒径随着距吹填口距离的增大而减小,黏粒(d<5μm)含量沿程逐渐增大,粒径大于10μm的颗粒含量沿程逐渐减小,粒径介于5~10μm之间的颗粒含量沿程基本保持不变,在水平方向表现出明显的分选性;疏浚泥颗粒在垂直方向上分选性较弱,且分选规律较差.以泥沙运动力学和高含沙水流运动学为理论基础,通过分析吹填过程中不同粒径的颗粒在堆场内的运移规律,对堆场疏浚泥颗粒的分选机理进行了探讨,明确了疏浚泥浆的含水率、颗粒级配、尺寸以及水动力条件等是影响疏浚泥颗粒分选的主要因素.
Abstract:
In order to determine disposal areas and select reasonable disposal technologies, laws of grain sorting and mechanisms for dredged slurries with high water content in large reclaimed land are studied. The N1 storage yard of dredged slurries near Jinbao Channel which belongs to a part of eastern route of water diversion from South to North in China is investigated, and soil samples at different distances from filling inlet and different depths are obtained. Results of grain size analysis for soil samples show that the grain size of dredged soils decreases along the horizontal direction. The content of clay particles(d<5μm)increases along the horizontal direction; the content of grains with sizes more than 10μm decreases along the horizontal direction, while the content of grains with sizes between 5 and 10 μm maintains almost the same. Grain sorting characteristics are prominent in horizontal direction, yet grain sorting characteristics are not obvious and sorting laws are poor in vertical direction. Laws of movement and transportation for grains of different sizes are analyzed based on dynamic theory of sediments and kinematics of high sediment-laden flows. Mechanisms of grain sorting for dredged slurries are discussed, and it is determined that major factors affecting grain sorting are moisture contents of dredged slurries, grain compositions, grain sizes, and flow conditions etc.

参考文献/References:

[1] Lee S L, Karunaratne G P, Yong K Y, et al. Layered clay-sand scheme of land reclamation [J]. Journal of Geotechnical Engineering, 1987, 113(9):984-995.
[2] Cargill K W. Prediction of consolidation of very soft soil [J]. Journal of Geotechnical Engineering, 1984, 110(6): 775-795.
[3] 朱伟,冯志超,张春雷,等. 疏浚泥固化处理填海工程的现场试验研究[J].中国港湾建设,2005(5):27-30.
  Zhu Wei, Feng Zhichao, Zhang Chunlei, et al. Field experiment of dredged spoil solidified with cement for marine reclamation works [J]. China Harbour Engineering, 2005(5):27-30.(in Chinese)
[4] 吉锋,张铁军,张帅,等. 高含水量疏浚淤泥填料化处理土的干密度变化规律[J]. 东南大学学报:自然科学版,2010,40(4):840-843.
  Ji Feng, Zhang Tiejun, Zhang Shuai, et al. Variation of dry density of high-water-content dredged clays treated with quick lime [J]. Journal of Southeast University: Natural Science Edition, 2010, 40(4): 840-843.(in Chinese)
[5] 邓东升,张铁军,洪振舜,等. 南水北调东线工程高含水量疏浚泥材料处理技术研究[J].河海大学学报,2008,36(4):559-562.
  Deng Dongsheng, Zhang Tiejun, Hong Zhenshun, et al. Technique for utilization of high-water-content dredged clayey soil as fill material for the eastern route of south-to-north water diversion project [J]. Journal of Hohai University, 2008, 36(4): 559-562.(in Chinese)
[6] Zhu W, Zhang C, Chiu A C F. Soil-water transfer mechanism for solidified dredged materials [J]. Journal of Geotechnical and Geoenvironment Engineering, 2007, 133(5): 588-598.
[7] 汪顺才,张春雷,黄英豪,等. 堆场疏浚淤泥含水率分布规律调查研究[J].岩土力学,2010,31(9):2823-2827.
  Wang Shuncai, Zhang Chunlei, Huang Yinghao, et al. Study of diversification of water contents in dredged sediment storage yard [J]. Rock and Soil Mechanics, 2010, 31(9): 2823-2827.(in Chinese)
[8] U.S. Army Engineer Waterways Experiment Station. Predicting and monitoring dredged material movement, technical report DS-78-3 [R]. Washington DC: U.S. Army Corps of Engineers, 1978.
[9] U.S. Army Corps of Engineers. EM 1110-2-5027 confined disposal of dredged material [S]. Washington DC: U.S. Army Corps of Engineers, 1987.
[10] U.S. Army Engineer Waterways Experiment Station. Prediction and control of dredged material dispersion around dredging and open-water pipeline disposal operations, technical report DS-78-13 [R]. Washington DC: U.S. Army Corps of Engineers, 1978.
[11] Montgomery R L, Thachston E L, Parker F L. Dredged material sedimentation basin design [J]. Journal of Environmental Engineering, 1983, 109(2): 466-484.
[12] 张瑞瑾,谢鉴衡,陈文彪. 河流动力学[M].武汉:武汉大学出版社,2007.
[13] 钱宁,万兆惠. 泥沙运动力学[M].北京:科学出版社,2003.
[14] 钱宁. 高含沙水流运动[M].北京:清华大学出版社,1989.
[15] 王明甫. 高含沙水流与泥石流[M].北京:水利水电出版社,1995.
[16] 倪晋仁,王广谦. 固液两相流基本理论以及最新应用[M].北京:科学出版社,1991.
[17] Wang Guangqian, Ni Jinren. Kinetic theory for particle concentration distribution in two-phase flow [J]. Journal of Engineering Mechanics, 1990, 116(12):2738-2748.
[18] International Association for Testing Materials. D442-63 standard test method for particle-size analysis of soils [S]. West Conshohocken: Barr Harbor Drive, 2002.
[19] 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
  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.(in Chinese)

相似文献/References:

[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.[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.[doi:10.3969/j.issn.1001-0505.2013.03.034]

备注/Memo

备注/Memo:
作者简介: 杨瑞敏(1984—),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(51178107,41172240)、江苏省普通高校研究生科研创新计划资助项目(CXZZ12_0109)、中央高校基本科研业务费专项资金资助项目.
引文格式: 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):639-643. [doi:10.3969/j.issn.1001-0505.2013.03.035]
更新日期/Last Update: 2013-05-20