1. School of Traffic and Transportation Engineering, Changsha University of Science & Technology, Changsha Hunan 410004, China;
2. Zhangzhuo Expressway Zhangjiakou Administrative Department, Zhangjiakou Hebei 076100, China
Measurement and Analysis of Moisture Migration Characteristics in Subgrade of Excavation Section
YAN Jia-jun1, GUAN Hong-xin1, ZHANG Guo-bin2, XU Cong-jia1, KUANG Jiao-jiao1
1. School of Traffic and Transportation Engineering, Changsha University of Science & Technology, Changsha Hunan 410004, China;
2. Zhangzhuo Expressway Zhangjiakou Administrative Department, Zhangjiakou Hebei 076100, China
摘要To cope with the phenomenon of moisture imbalances in subgrades due to excavation, the resistivity of different excavation subgrades (deep excavation section, shallow excavation section, and cut-and-fill transition section) at different vertical depths pre- and post- excavation of blind drains were measured using temperature and resistance sensors laid in test sections of the Zhangjiakou-Zhuozhou expressway project.The moisture migration characteristics in excavation subgrades were analyzed by developing the relation between resistivity and moisture content from laboratory experiments.The analysis results show that (1) the moisture contents in subgrades in late autumn and early spring increases with an increased excavation depth, which is due to the combined effect of the temperature and water supply from excavation slopes; (2) blind drains and the roadbed replacement depth contribute to the suppression of moisture migration in excavation section subgrades, which can improve the work state of the subgrade; (3) summer rainfall significantly influences moisture migration in deep excavation section subgrades and cut-and-fill transition section subgrades; the moisture content in summer significantly increases compared with that in the other seasons; the influence of seasonal factors on moisture migration in deep excavation section subgrades is significantly stronger than that in cut-and-fill transition section subgrades.
Abstract：To cope with the phenomenon of moisture imbalances in subgrades due to excavation, the resistivity of different excavation subgrades (deep excavation section, shallow excavation section, and cut-and-fill transition section) at different vertical depths pre- and post- excavation of blind drains were measured using temperature and resistance sensors laid in test sections of the Zhangjiakou-Zhuozhou expressway project.The moisture migration characteristics in excavation subgrades were analyzed by developing the relation between resistivity and moisture content from laboratory experiments.The analysis results show that (1) the moisture contents in subgrades in late autumn and early spring increases with an increased excavation depth, which is due to the combined effect of the temperature and water supply from excavation slopes; (2) blind drains and the roadbed replacement depth contribute to the suppression of moisture migration in excavation section subgrades, which can improve the work state of the subgrade; (3) summer rainfall significantly influences moisture migration in deep excavation section subgrades and cut-and-fill transition section subgrades; the moisture content in summer significantly increases compared with that in the other seasons; the influence of seasonal factors on moisture migration in deep excavation section subgrades is significantly stronger than that in cut-and-fill transition section subgrades.
基金资助:Supported by the Hebei Province Traffic Science and Technology Projects(No.Y-2010137)
通讯作者:
YAN Jia-jun, 779423062@qq.com
E-mail: 779423062@qq.com
引用本文:
颜加俊, 关宏信, 张国彬, 徐从家, 匡姣姣. 挖方路段路基水分迁移特性测试与分析[J]. Journal of Highway and Transportation Research and Development, 2014, 8(1): 21-27.
YAN Jia-jun, GUAN Hong-xin, ZHANG Guo-bin, XU Cong-jia, KUANG Jiao-jiao. Measurement and Analysis of Moisture Migration Characteristics in Subgrade of Excavation Section. Journal of Highway and Transportation Research and Development, 2014, 8(1): 21-27.
[1] WANG Tie-hang, HU Chang-shun. A Numerical Model of Moisture Migration for Frozen Soil Subgrade[J].China Journal of Highway and Transport,2001, 14(4):6-9. (in Chinese)
[2] WANG Tie-hang, HU Chang-shun. Study on the Problem of Coupled Temperature Field and Moisture Migration Field of Subgrade in Permafrost Region[J]. China Civil Engineering Journal, 2003, 36(12):93-97. (in Chinese)
[3] ZHANG Xi-fa, XIN DE-gang, ZHANG Dong-qing, et al. Water Migration and Variation in the Subgrade Soils of Expressway in Seasonally Frozen Ground Regions[J]. Journal of Glaciology and Geocryology, 2004, 26(4):454-460. (in Chinese)
[4] YUAN Guo-hong. Mechanism and Numerical Simulation on Seasonal Frozen Soil Water Migration[D]. Changchun:Jilin University, 2006. (in Chinese)
[5] XIAO Zhi-hui, LIU Shi-wu. Pavement Damage Causes and Prevention Analysis of Hunan Hilly Areas Excavation Road Sections[J]. Central South Highway Engineering, 1999, 24(2):8-10. (in Chinese)
[6] JING Hong-jun. Study on Water Infiltration Pattern into Loess Subgrade[J]. Journal of Highway and Transportation Research and Development, 2004, 21(4):40-42. (in Chinese)
[7] WANG Tie-hang, LU Hai-hong. Moisture Migration in Unsaturated Loess Considering Temperature Effect[J]. Rock and Soil Mechanics, 2004, 25(7):1081-1084. (in Chinese)
[8] KONG Ling-kun. Test of Moisture Migration in Soil and Numerical Simulation[D]. Xi'an:Chang'an University, 2009. (in Chinese)
[9] TONG Chang-jiang, GUAN Feng-nian. Frost Heaven Properties of Soil and Protection of the Architecture in Cold Area[M]. Beijing:Water Conservancy and Hydropower Publishing House, 1985. (in Chinese)
[10] ADHIKARI B, CHAUDHARY D S, CLERFEUILLE E. Effect of Plasticizers on the Moisture Migration Behavior of Low-amylose Starch Films during Drying[J]. Drying Technology, 2010, 28(4):468-480.
[11] ZEHE E, MAURER T, IHRINGER J, et al. Modeling Water Flow and Mass Transport in a Loess Catchment[J]. Physics and Chemistry of the Earth, Part B:Hydrology, Oceans and Atmosphere, 2001, 26(7):487-507.
[12] LADANYI B. An Engineering Theory of Creep of Frozen Soils[J]. Canadian Geotechnical Journal, 1972, 9(1):63-80.
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2014, Vol. 8 
