[1]夏 雄,徐 璜,胡 坤,等.固化淤泥土压缩性试验研究[J].常州大学学报(自然科学版),2014,(02):66-69.[doi:10.3969/j.issn.2095-0411.2014.02.016]
　XIA Xiong,XU Huang,HU Kun,et al.An Experimental Study on the Compression of Solidified Sludge[J].Journal of Changzhou University(Natural Science Edition),2014,(02):66-69.[doi:10.3969/j.issn.2095-0411.2014.02.016]
点击复制

固化淤泥土压缩性试验研究()
分享到：

常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2014年02期
页码:
66-69
栏目:
环境科学与工程
出版日期:
2014-04-30

文章信息/Info

Title:
An Experimental Study on the Compression of Solidified Sludge
作者:
夏 雄1;  徐 璜1;  胡 坤1;  徐汉东2;  奚赛英3
1.常州大学 环境与安全工程学院,江苏 常州 213164; 2.江苏鼎达建筑新技术有限公司,江苏 常州 213015; 3.常州市规划设计院,江苏 常州 213003
Author(s):
XIA Xiong1; XU Huang1; HU Kun1; XU Han-dong2; XI Sai-ying3
1.School of Environment and Safety Engineering of Changzhou University, Changzhou 213164,China; 2.Jiangsu Dinda Construction and New Technology Corporation,Changzhou 213015,China; 3.Changzhou city Planning and Design Institute, Changzhou 213003,China
关键词:
淤泥土; 固化; 压缩模量; 单向压缩试验
Keywords:
sludge;  solidify;  compression modulus;  unidirectional compression test
分类号:
TU521.3
DOI:
10.3969/j.issn.2095-0411.2014.02.016
文献标志码:
A
摘要:
淤泥由于含水率高强度低,无法直接作为工程用土。对淤泥进行固化处理,可以实现废弃淤泥的资源化利用。选择常州市武进区废弃淤泥作为研究对象,利用42.5普通硅酸盐水泥作为固化添加剂,通过固化淤泥的单向压缩试验,探讨4种水泥参量变化条件下共24个试样的压缩变化机理,描述水泥添加量对压缩模量的影响,分析其影响规律。通过试验对比分析,可知:同一含水率下,淤泥随着水泥参量的增加,试样压缩性减小;各试样在压缩试验过程中,其压缩变形规律基本一致,荷载达到200kPa时,其压缩性趋于稳定;随着固结压力的不断增加,沉降变形量逐渐减缓,最后趋于收敛;随着水泥参量的增加,同一应力条件下,试样稳定需要的时间缩短;淤泥固化效果在水泥参量接近50%时较优,超过此数值,强度虽提高,固化工作经济效益降低。
Abstract:
Because of its high moisture content and low strength, sludge can not be used directly in engineering. The solidification treatment of sludge would enable the utilization of sludge, turning a waste material into useful resource. The sludge was chosen from Wujin district in Changzhou as an object of study. By using ordinary silicate cement as a curing additive, through oneway compression tests, the compression mechanism of 4 kinds of cement parameter variation for 24 samples were explored, the impact of cement content on the compression modules was described, and the rule to get the basic experimental data for engineering and scientific research were analyzed. A comparative analysis of the experiment indicates that, with the same water content, the sludge sample's compressibility decreases with the increase of cement parameters; the sample's compression deformation rate remain consistent in the process of compression tests; when loading up to 200 kPa, its compression is more stable; as the solidification pressure increases, the settlement deformation rate gradually slows down, and finally it tends to converge; with the increase of cement parameters, under the same stress condition, the time for the sample stability becomes shortened; the optimal result of sludge solidification is acquired when the cement reaches up to 50%. A higher content of cement would increase the strength but decrease the economic benefits in engineering.

参考文献/References:

[1] 夏雄,董亮亮,张爱琴,等.考虑气相堵塞的土样渗透试验分析[J].常州大学学报:自然科学版,2012,24(1):55-58.
[2] 虞志英,张勇.疏浚物倾抛对海洋环境影响的研究评述[J].海洋与湖沼,1999,30(4):460-464.
[3] 朱伟,刘汉龙,高玉峰.工程废弃土的再生资源利用技术[J].再生资源研究,2001,18(6):32-35.
[4] 范公俊.固化淤泥的收缩性质及其控制措施研究[D].南京:河海大学,2007.
[5] 地基处理手册编写委员会.地基处理手册(第二版)[M].北京:中国建筑工业出版社,2000.
[6] 李磊,朱伟,赵建,等.西五里湖疏浚底泥资源化处理的二次污染问题研究[J].河海大学学报:自然科学版,2005,33(2):127-130.
[7] Harris M R,Herbert S M,Smith M A.Remedial treatment for contaminated land,Volume Ⅶ:Ex-situ remedial methods for sludges,sludges and sediments[M].London:Construction Industry Research and Information Association Special Publication,1995:122-171.
[8] LaGrega M D,Buckingham P L,Evans J C.Hazardous Waste Management[M].New York:McGraw Hill Higher Education,1994:641-704.
[9] Hills C D,Sollars C J,Koe L C,et al.A calorimetric study of the effect of organi c-compounds on the initial behaviour of cement-based solidified wastes[J].Waste Management and Research,1995,13(1):21-36.

备注/Memo

备注/Memo:
基金项目:常州市科技局研究基金(CE20135038); 江苏鼎达应用研究基金(KYH1202162)。 作者简介:夏雄(1972-),男,四川成都人,博士,副教授,主要从事环境岩土教学和科研工作研究。
更新日期/Last Update: 2014-04-20