文献类型：期刊文献

中文题名：改性石灰土在干湿和冻融循环下的无侧限抗压性能

英文题名：Unconfined compression behavior of modified lime stabilized soil under dry wet and freeze?thaw cycles

作者：姜屏[1,2];陈业文[2];陈先华[1];张伟清[2,3];李娜[2];王伟[2]

机构：[1]东南大学交通学院,南京210096;[2]绍兴文理学院土木工程学院,浙江绍兴312000;[3]广东省建筑设计研究院有限公司,广州510010

年份：2023

卷号：53

期号：6

起止页码：1809

中文期刊名：吉林大学学报:工学版

外文期刊名：Journal of Jilin University:Engineering and Technology Edition

收录：CSTPCD、、EI(收录号：20233214503088)、Scopus、CSCD2023_2024、北大核心、CSCD、北大核心2020

基金：浙江省自然科学基金项目(LQ20E080005).

语种：中文

中文关键词：道路工程;改性石灰土;冻融循环;干湿循环;无侧限抗压性能

外文关键词：road engineering;modified lime stabilized soil;freeze thaw cycle;dry wet cycle;unconfined compression behavior

中文摘要：为进一步提升在复杂环境工程中石灰土的适用性和安全性,利用纳米粘土和纤维改性石灰土的力学性能。通过分析改性石灰土在干湿循环和冻融循环作用下的无侧限抗压性能,从而判断纳米粘土和纤维对石灰土的改性效果。试验结果证明,纤维和纳米粘土可以提高石灰土的抗压强度和残余强度,增大破坏应变,改变破坏模式。尤其在纤维和纳米粘土的复合作用下纳米粘土/纤维改性石灰土(NFLS)呈现出最优无侧限抗压性能,并能够延缓因干湿循环和冻融循环作用导致的NFLS内部损伤。

外文摘要：In order to further improve the applicability and safety of lime stabilized soil in complex environmental engineering,the mechanical properties of lime stabilized soil modified by nano clay and fiber were studied.By analyzing the unconfined compression behavior of modified lime stabilized soil under the action of dry wet cycle and freeze-thaw cycle,the modified effect of nano clay and fiber on lime stabilized soil can be judged.The test results show that fiber and nano clay can improve the compressive strength and residual strength of lime stabilized soil,increase the failure strain and change the failure mode.Especially,under the combined action of fiber and nano clay,nano clay/fiber modified lime soil(NFLS)presents the best unconfined compression behavior,and can delay the internal damage of NFLS caused by dry wet cycle and freeze-thaw cycle.