|本期目录/Table of Contents|

[1]张丽华,范昭平.石灰-粉煤灰改良高含水率疏浚淤泥的试验[J].南京工业大学学报(自然科学版),2013,35(01):1-91.[doi:10.3969/j.issn.1671-7627.2013.01.019]
 ZHANG Lihua,FAN Zhaopin.Experimental study on lime-fly ash improving high water tontent dredged material[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2013,35(01):1-91.[doi:10.3969/j.issn.1671-7627.2013.01.019]
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石灰-粉煤灰改良高含水率疏浚淤泥的试验()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
35
期数:
2013年01期
页码:
1-91
栏目:
出版日期:
2013-01-20

文章信息/Info

Title:
Experimental study on lime-fly ash improving high water tontent dredged material
文章编号:
1671-7627(2013)01-0091-05
作者:
张丽华1范昭平2
1. 南京工业大学 力学部,江苏 南京 210009; 2. 江苏省交通规划设计院,江苏 南京 210005
Author(s):
ZHANG Lihua1 FAN Zhaopin2
1. Mechanics Department, Nanjing University of Technology, Nanjing 210009, China; 2. Jiangsu Provincial Communication & Design Institute, Nanjing 210005, China
关键词:
石灰-粉煤灰 高含水率疏浚淤泥 液塑限 强度
Keywords:
lime-fly ash high water content dredged material atterberg limits strength
分类号:
TU41
DOI:
10.3969/j.issn.1671-7627.2013.01.019
文献标志码:
A
摘要:
针对我国大量发生的疏浚淤泥难以处理和污染环境的问题,采用生石灰和废弃粉煤灰为改良材料,通过置换试验和增加试验,研究石灰-粉煤灰改良淤泥的含水率、液塑限和无侧限抗压强度的变化规律。结果表明:改良土的含水率都会随着养护龄期的延长和材料添加量的增加而有效地降低; 龄期和粉煤灰添加量对改良土的液塑限和塑性指数的影响较大; 在石灰中添加粉煤灰作为辅助材料时,可以显著提高强度,在粉煤灰添加量为4倍的石灰添加量时比单独添加粉煤灰强度增长达10倍。
Abstract:
In order to solve the abundant of dredged material difficult to treatment and environment pollution problems, lime-fly ash was used as modified materials. By displacement and addition tests, changes of water content, atterberg limits and unconfined compression strength of modified dredged material were studied. Results showed that water content of modified soil decreased with the increasing of curing periods and additive materials amount; curing time and fly-ash amount significantly affected its atterberg limits; fly-ash as the auxiliary additive material, the strength of modified soil increased a lot. And when the amount of fly ash was four times of lime amount, the strength increased over 10 times. The study showed that when lime-fly ash as composite additive materials, the plasticity and the strength were evidently improved.

参考文献/References:

[1] Huang Y H,Zhu W,Qian X D,et al.Change of mechanical behavior between solidified and remolded solidified dredged materials[J].Engineering Geology,2011,119(34):112-119.
[2] Zhu W,Zhang C L,Chiu A C F.Soil-water transfer mechanism for solidified dredged materials[J].Journal of Geotechnical and Geoenvironmental Engineering,2007,133(5):588-598.
[3] 范昭平,朱伟,张春雷.有机质含量对淤泥固化效果影响的试验研究[J].岩土力学,2005,26(8):1327-1330,1334.
[4] Chew S H,Kamruzzaman A H M,Lee F H.Physicochemical and engineering behavior of cement treated clays[J].Journal of Geotechnical and Geoenvironmental Engineering,2004,130(7):696-706.
[5] 巻渕正治,土田孝,山根信幸,等.セメント固化処理した浚渫土の初期強度特性[C]//地盤工学会论文集.长冈:日本工営出版社,1999:27-828.
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[7] Virendra S,Narendra K.Use of fly ash in base and subbase of roads[C]//Proceedings of the International Conference on Solid Waste Technology and Management.Seoul:International Society of Offshore and Polar Engineers,1997:188-193.

备注/Memo

备注/Memo:
收稿日期:2012-05-04
基金项目:国家自然科学基金(51209142)
作者简介:张丽华(1978—),女,江苏沭阳人,讲师,主要研究方向为土木建筑材料的工程力学特性及结构优化设计,E-mail:foxscarlet@sohu.com..
更新日期/Last Update: 2013-01-20