冻融条件TG固化剂石灰土基层性能研究

doi:10.7522/j.issn.1000-0240.2015.0113

冰川冻土 ›› 2015, Vol. 37 ›› Issue (4): 1016-1022.doi: 10.7522/j.issn.1000-0240.2015.0113

冻融条件TG固化剂石灰土基层性能研究

杨林, 朱金莲, 焦厚滨

东北林业大学土木工程学院, 黑龙江哈尔滨 150040

收稿日期:2015-03-14 修回日期:2015-05-17 出版日期:2015-08-25 发布日期:2016-01-18
通讯作者: 朱金莲, E-mail: jinlian010203@163.com. E-mail:jinlian010203@163.com
作者简介:杨林(1970-), 男, 吉林长岭人, 副教授, 2007年于吉林大学获博士学位, 现主要从事道路工程及材料的研究. E-mail: yanglin@nefu.edu.cn
基金资助:
黑龙江省交通运输厅科技项目(20101018)资助

Performance research on the calcareous soil foundation with TG curing agent under freeze and thaw cycles

YANG Lin, ZHU Jinlian, JIAO Houbin

School of Civil Engineering, Northeast Forestry University, Harbin 150040, China

Received:2015-03-14 Revised:2015-05-17 Online:2015-08-25 Published:2016-01-18

摘要/Abstract

摘要： 为了进一步研究TG固化剂石灰土在冻融条件下的各项性能, 分别对TG固化剂石灰土进行冻融作用前后的无侧限抗压强度试验和劈裂试验以及干缩试验. 结果表明: 随着冻融循环次数的增加, 无侧限抗压强度以及劈裂强度逐渐减小, 经历8次冻融循环以后强度衰减达到最大值. 经过冻融循环作用后试件的无侧限抗压强度以及劈裂强度残留值随着含水率和压实度的增加而增加, 通过冻融试验得到的抗冻性能指标BDR值在51%以上, 与未饱水冻融循环得到的最终残留强度值保持一致. 经冻融循环作用后TG固化剂石灰土的干缩应变和干缩系数减小, 干缩性能有所提高. 冻融循环条件下TG固化剂石灰土抗冻性能良好, 可以应用于路面基层.

关键词: 路面基层, 固化剂, 冻融循环, 无侧限抗压强度, 干缩应变

Abstract: In order to further study various properties of calcareous soil with TG curing agent under freeze and thaw cycles, unconfined compressive strength test, split test and dry shrinkage test were carried out on the soil before and after freeze-thaw cycles. It is found that with the increase of freeze-thaw cycles, the unconfined compressive strength and splitting strength decrease gradually; after eight freeze-thaw cycles, the strength attenuation reaches the maximum. The residual values of unconfined compressive strength and splitting strength increase with the moisture content and the degree of compaction after freeze and thaw cycles; the antifreeze performance index due to freeze and thaw cycles is above 51%, which is consistent with the final residual strength of unsaturated water experimented freeze and thaw cycles. Dry shrinkage strain and dry shrinkage coefficient of the calcareous soil with TG curing agent decrease after freeze-thaw cycles, and the dry shrinkage performance has been improved. Freeze-thaw cycles have an opposite effect to the strength and dry shrinkage performance of calcareous soil with TG curing agent. Calcareous soil with TG curing agent has good frost resistance under freeze and thaw condition, which can be applied to pavement foundation.

Key words: pavement foundation, curing agent, freeze-thaw cycles, unconfined compressive strength, dry shrinkage strain

中图分类号:

TU431

杨林, 朱金莲, 焦厚滨. 冻融条件TG固化剂石灰土基层性能研究[J]. 冰川冻土, 2015, 37(4): 1016-1022.

YANG Lin, ZHU Jinlian, JIAO Houbin. Performance research on the calcareous soil foundation with TG curing agent under freeze and thaw cycles[J]. JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY, 2015, 37(4): 1016-1022.

参考文献

[1] Zhao Rongfei, Gao Wei, Mi Yongning, et al. Analysis of the geogrid reinforced clay embankment's working performance after repeated freezing and thawing[J]. Journal of Glaciology and Geocryology, 2014, 36(6): 1490-1495. [赵荣飞, 高微, 宓永宁, 等. 多次冻融后格栅加筋黏土路堤工作性能分析[J]. 冰川冻土, 2014, 36(6): 1490-1495.]
[2] Zhang Lianhai, Ma Wei, Yang Chengsong, et al. A review and prospect of the thermodynamics of soils subjected to freezing and thawing[J]. Journal of Glaciology and Geocryology, 2013, 35(6): 1505-1518. [张莲海, 马巍, 杨成松, 等. 土在冻结及融化过程中的热力学研究现状与展望[J]. 冰川冻土, 2013, 35(6): 1505-1518.]
[3] Yin Xiaowen, Fu Qiang, Ma Kunlin. Study of the nonlinear mathematical model for triaxial creep of frozen soil[J]. Journal of Glaciology and Geocryology, 2013, 35(1): 171-176. [尹晓文, 傅强, 马昆林. 冻土三轴蠕变非线性数学模型研究[J]. 冰川冻土, 2013, 35(1): 171-176.]
[4] Ni Wankui, Shi Huaqiang. Influence of freezing-thawing cycles on micro-structure and shear strength of loess[J]. Journal of Glaciology and Geocryology, 2014, 36(4): 922-927. [倪万魁, 师华强. 冻融循环作用对黄土微结构和强度的影响[J]. 冰川冻土, 2014, 36(4): 922-927.]
[5] Li Zhaoyu, Zhang Bin. Experimental study of stress-stain relationships of frozen expansive soil[J]. Journal of Glaciology and Geocryology, 2014, 36(4): 902-906. [李兆宇, 张滨. 冻结膨胀土应力-应变关系试验研究[J]. 冰川冻土, 2014, 36(4): 902-906.]
[6] Zhao Yuguo. Study on frost resistance performance of semi-rigid base material and construction control[D]. Xi'an: Chang'an University, 2013. [赵玉国. 半刚性基层材料抗冻性能及施工控制研究[D]. 西安: 长安大学, 2013.]
[7] Yang Hongyu. Application of soil solidify agent in road basic layer and subbase[D]. Xi'an: Chang'an University, 2013. [杨宏宇. 土壤固化剂在公路基层底基层中的应用[D]. 西安: 长安大学, 2013.]
[8] Yang Lin, Zhang Bingxia. Strength and stability test for cement-lime stabilized clay with TG-2 soilfying agent[J]. Journal of Highway and Transportation Research and Development, 2013, 30(9): 27-32. [杨林, 张秉夏. TG-2型土壤固化剂水泥石灰土的强度和稳定性试验[J]. 公路交通科技, 2013, 30(9): 27-32.]
[9] Liu Shutang, Mao Honglu, Gao Xuechi, et al. Application research on soil stabilized with firming agent and low dosage lime[J]. Journal of Building Materials, 2009, 12(4): 487-492.
[10] Naeini S A, Naderinia B, Izadi E. Unconfined compressive strength of clayey soils stabilized with waterborne polymer[J]. KSCE Journal of Civil Engineering, 2012, 16(6): 943-949.
[11] Kolay P K, Aminur M R, Taib S N L, et al. Stabilization of tropical peat soil from Sarawak with different stabilizing agents[J]. Geotechnical and Geological Engineering, 2011, 29(6): 1135-1141.
[12] Xu Anhua. A study of anti-freezing properties of cement-stabilized gravels in permafrost regions[J]. Journal of Glaciology and Geocryology, 2014, 36(1): 152-157. [徐安花. 多年冻土区水泥稳定砂砾基层抗冻性能研究[J]. 冰川冻土, 2014, 36(1): 152-157.]
[13] Dai Wenting, Chen Yao, Chen Xing. Test study on road performance of soils stabilized by BS-100 model stabilizer in seasonally frozen region[J]. Rock and Soil Mechanics, 2008, 29(8): 2257-226. [戴文亭, 陈瑶, 陈星. BS-100型土壤固化剂在季冻区的路用性能试验研究[J]. 岩土力学, 2008, 29(8): 2257-2261.]
[14] Yang Wending. Research on semi-rigid base material shrinkage performance[D]. Xi'an: Chang'an University, 2004. [杨文丁. 半刚性基层材料收缩性能研究[D]. 西安: 长安大学, 2004.]
[15] Li Zhenxia, Chen Yuanzhao. Test and analysis of properties for different types of semi-rigid base materials[J]. Journal of Chang'an University (Natural Science Edition), 2012, 32(1): 41-46. [李振霞, 陈渊召. 不同类型半刚性基层材料性能的试验与分析[J]. 长安大学学报(自然科学版), 2012, 32(1): 41-46.]

冻融条件TG固化剂石灰土基层性能研究

Performance research on the calcareous soil foundation with TG curing agent under freeze and thaw cycles

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