含盐量对石灰固化滨海盐渍土稠度和击实性能的影响

›› 2008, Vol. 29 ›› Issue (11): 3066-3070.

含盐量对石灰固化滨海盐渍土稠度和击实性能的影响

柴寿喜^1，2，王晓燕³，仲晓梅^1，2，郭英¹，王沛¹，李芳¹

1. 天津城市建设学院土木工程系，天津 300384；2. 天津市软土特性与工程环境重点实验室，天津 300384； 3. 中水北方勘测设计研究有限责任公司勘察院，天津 300222

收稿日期:2007-04-12 出版日期:2008-11-10 发布日期:2013-08-07
作者简介:柴寿喜，男，1962年生，博士，教授，从事岩土体改性加固方面研究
基金资助:
国家自然科学基金（No.40772166）；天津市自然科学基金（No.05YFSYSF00300，No.07JCYBJC12900）；天津市高等学校科技发展基金（No.20051404）；建设部研究开发项目（06－K1－5）；天津市建委科技项目（2007－43）

Different salt contents effect on consistency and compactness of saline soil in inshore with lime

CHAI Shou-xi^{1, 2}, WANG Xiao-yan³, ZHONG Xiao-mei^{1, 2}, GUO Ying¹, WANG Pei¹, LI Fang¹

1. Department of Civil Engineering, Tianjin Institute of Urban Construction, Tianjin 300384, China; 2. Tianjin Key Laboratory of Soft Soil Characteristics and Engineering Environment, Tianjin 300384, China; 3. Institute of Investigation, China Water Resources, Beifang Investigation, Design and Research Co. Ltd., Tianjin 300222, China

Received:2007-04-12 Online:2008-11-10 Published:2013-08-07

摘要/Abstract

摘要： 随着含盐量的增加，滨海盐渍土中的盐分结晶形成了更多的盐颗粒，使石灰固化土的稠度指标发生变化，总体上分阶段逐渐下降。含盐量的增加使得石灰固化土的不均匀系数增大，且随着养护龄期的增加而增大。增加土的含盐量，则石灰固化土悬液的电导率随之增加，但电导率几乎不随养护龄期而变化，这表明氯盐没有参与石灰的固化反应，只是吸附在土颗粒的表面或存在土孔隙中，石灰固化后的盐渍土仍然具有一定的吸湿软化性。重型击实试验结果证实，增加含盐量使石灰土混合料的最大干密度略有降低，最优含水率则几乎不变，因此，施工中可不考虑含盐量对石灰固化滨海盐渍土现场碾压效果的影响。

关键词: 滨海盐渍土, 石灰固化土, 含盐量, 稠度, 击实试验, 电导率

Abstract: With the increase of salt content of saline soil in inshore, the salt particles are formed in soil, in general, which presenting an appearance of different sections and causing the consistency indices of solidified soil drop gradually. Uniformity coefficient of the solidified soil with lime increases with more salt content and more curing periods. Conductivity of the solidified soil has been increasing with more salt content and increasing hardly with more curing periods. It has been certified that salt has no action in the chemical reaction of lime and soil, salt is still on the surface of soil particles or in the pores of soil, and the solidified soil will be softened because of absorption of water. It has been proved that maximum dry density drops slightly; and optimum water content is hardly change with the increase of salt content on the basis of compaction test; and in situ salt content effects scarcely on compactness of saline soil in inshore with lime.

Key words: saline soil in inshore, solidified soil with lime, salt content, consistency, compaction test, conductivity

中图分类号:

TU 448

柴寿喜，王晓燕，仲晓梅，郭英，王沛，李芳 . 含盐量对石灰固化滨海盐渍土稠度和击实性能的影响[J]. , 2008, 29(11): 3066-3070.

CHAI Shou-xi , WANG Xiao-yan , ZHONG Xiao-mei , GUO Ying , WANG Pei , LI Fang . Different salt contents effect on consistency and compactness of saline soil in inshore with lime[J]. , 2008, 29(11): 3066-3070.

参考文献

相关文章 15

[1]	朱长歧, 崔翔, 胡明鉴, 王新志, 唐健健, . 钙质土电导率和渗透性的相关研究[J]. 岩土力学, 2018, 39(S2): 142-148.
[2]	魏丽，柴寿喜，姜宇波，. 含盐量与布筋方式对纤维加筋土抗压性能的影响[J]. , 2017, 38(S2): 210-216.
[3]	胡明鉴，蒋航海，崔翔，阮洋，刘海峰，张晨阳,. 钙质砂电导率与相关性问题初探[J]. , 2017, 38(S2): 158-162.
[4]	谢伟，章定文，杨声，. 含水率对路基压实土小应变剪切模量的影响规律[J]. , 2017, 38(5): 1273-1280.
[5]	张季如，胡超，申泽辉，张程锋，廖传飞，李璋. 建筑废渣-黏土混合料压实特性试验研究[J]. , 2016, 37(S2): 349-355.
[6]	龚壁卫，周丹蕊，魏小胜,. 膨胀土的电导率与膨胀性的关系研究[J]. , 2016, 37(S2): 323-328.
[7]	文桃，米海珍，杨鹏，应赛，王月礼. 硫酸盐渍土击实性能及影响因素试验研究[J]. , 2015, 36(7): 1945-1952.
[8]	杜俊，侯克鹏，梁维，彭国诚. 粗粒土压实特性及颗粒破碎分形特征试验研究[J]. , 2013, 34(S1): 155-161.
[9]	孙德安，张谨绎，宋国森 . 氯盐渍土土-水特征曲线的试验研究[J]. , 2013, 34(4): 955-960.
[10]	张虎元，张秋霞，李敏 . 微波炉法测定遗址土含水率的可靠性研究[J]. , 2012, 33(S2): 65-0070.
[11]	车东日罗春泳沈水龙 . 水泥混合上海黏土pH值和电导率与强度特性研究[J]. , 2012, 33(12): 3611-.
[12]	朱崇辉，王增红，希罗科夫 B. H.. 单点击实法击实试验研究[J]. , 2012, 33(1): 60-64.
[13]	李敏，柴寿喜，王晓燕，魏丽. 以强度增长率评价麦秸秆加筋盐渍土的加筋效果[J]. , 2011, 32(4): 1051-1056.
[14]	王沛，柴寿喜，王晓燕，魏丽，李敏. 麦秸秆加筋盐渍土重型击实效果的影响因素分析[J]. , 2011, 32(2): 448-452.
[15]	聂庆科，王英辉，梁书奇，张全秀. 广西靖西红黏土及其击实后的水稳定性试验研究[J]. , 2010, 31(4): 1134-1138.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed