市政技术2026，Vol.44Issue(5)：85-89,5.DOI:10.19922/j.1009-7767.2026.05.085
石灰改良潮湿黏性土的路用性能研究
Study on Road Performance of Moist Clayey Soil Improved by Lime
李国良 1蒋金龙 2王星宇3
作者信息
- 1. 黑龙江省通河养路总段,黑龙江哈尔滨 150001
- 2. 中国铁建大桥工程局集团有限公司投资公司,天津 300300
- 3. 东北林业大学工程咨询设计研究院有限公司,黑龙江哈尔滨 150040
- 折叠
摘要
Abstract
Due to environmental effects,subgrade fill with high moisture content cannot be directly used for subgrade filling,thus delaying the construction progress.Therefore,research on the road performance of modified moist clayey soil is of significant engineering importance.By preparing soil samples with different moisture contents,lime contents and soaking conditions,the California Bearing Ratio(CBR)was adopted as the evaluation index to quantitatively study the road performance of lime-improved moist clayey soil.The results indicate that lime has an obvious im-provement effect on the CBR value of moist clayey soil.Under the conditions of optimum moisture content and rela-tively high moisture content,1％lime content can meet the requirements of subgrade filling.When the moisture content increases to the natural moisture content,the CBR value of the improved soil cannot meet the road perfor-mance requirements;Compared with the soaking condition,the CBR value of the improved soil under the non-soaking condition is significantly increased.Under the optimum moisture content and relatively high moisture con-tent conditions,the non-soaking condition has a significant improvement effect on the CBR value of soil samples with 3％and 5％lime content;For actual working conditions with high natural moisture content,the moisture con-tent of fill can be reduced to near the optimum moisture content by means of air drying and mixing with dry soil,and then combined with lime stabilization and sealing measures to ensure that subgrade fill meets the specification re-quirements.These research results can provide a reference for subgrade engineering construction in moist clayey soil areas and shorten the project construction period.关键词
潮湿黏性土/含水率/石灰/浸水/非浸水/CBRKey words
moist clayey soil/water content/lime/soaking/non-soaking/California Bearing Ratio(CBR)分类
交通工程引用本文复制引用
李国良,蒋金龙,王星宇..石灰改良潮湿黏性土的路用性能研究[J].市政技术,2026,44(5):85-89,5.
