Effects of water content change path on laboratory and field compaction of lime stabilized expansive soil

被引:0
|
作者
Guo, Yugeng [1 ]
Zhang, Fuhai [2 ,3 ]
Liu, Zhengrong [2 ,3 ]
Meng, Qingxiang [2 ,3 ]
机构
[1] Hohai Univ, Lille Coll, Nanjing, Peoples R China
[2] Hohai Univ, Minist Educ Geomech & Embankment Engn, Key Lab, Nanjing, Peoples R China
[3] Hohai Univ, Res Inst Geotech Engn, Nanjing, Jiangsu, Peoples R China
基金
中国国家自然科学基金;
关键词
dry compaction test; wet compaction test; maximum dry density; optimum water content; matric suction; MECHANICAL-PROPERTIES; BULK-DENSITY; CEMENT; SHALLOW; SIZE;
D O I
10.3389/feart.2023.1282044
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Generally, the soil requires to be compacted in highway construction. The expansive soil is a special type of soil that is highly susceptible to variations in water content, which affects the degree of compaction at the same compaction energy. In the present study, a series of wet compaction tests and dry compaction tests were carried out in the laboratory. Laboratory test results show that dry compaction will produce a higher optimum water content and a higher maximum dry unit weight compared to wet compaction, because its matric suction is smaller. Field compaction tests were also conducted, the results showed that there might be a risk of under-compacting soils during construction caused by different water content change path in actual field conditions.
引用
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页数:8
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