Frost Heave of Irrigation Canals in Seasonal Frozen Regions
Soil frost heave acts as a driver of the emerged fracture in the concrete lining of irrigation canals and subsequent water leakage in seasonal frozen ground. A model test was carried out on the frost heave of a U-shaped canal with concrete lining. The heat and water migration during freezing, and fr...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/2367635 |
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| author | Jian Xu Qinze Wang Jiulong Ding Yanfeng Li Songhe Wang Yugui Yang |
| author_facet | Jian Xu Qinze Wang Jiulong Ding Yanfeng Li Songhe Wang Yugui Yang |
| author_sort | Jian Xu |
| collection | DOAJ |
| description | Soil frost heave acts as a driver of the emerged fracture in the concrete lining of irrigation canals and subsequent water leakage in seasonal frozen ground. A model test was carried out on the frost heave of a U-shaped canal with concrete lining. The heat and water migration during freezing, and frost heave-induced deformation, and force in normal direction were live monitored by high-precision transducers. The results prove that the freezing front descends downward over time at a specified thermal boundary, with considerable migration of water within the scope of 0–40 cm. The maximum deformation occurred at the bottom of the lining and decreased upward with the rate of frost heave lowering over time while the normal force showing little change in the monitoring points, implying that stress concentration does not show up during freezing. Besides, the layered settlement observation reveals that frost heave dominates the total deformation while creep, the universal source of deformation, accounts for a negligible proportion. A practical model was proposed based on a simple theoretical model for heat-water coupled transfer in a partially saturated medium and was numerically implemented in COMSOL. The computed results were compared with the monitored data including frozen depth, water content, normal displacement, and frost heave force. Finally, the rational thickness of the insulation board was determined based on the partial insulation method. |
| format | Article |
| id | doaj-art-1c4fe35ad6a540f285050ea9457de6b4 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-1c4fe35ad6a540f285050ea9457de6b42025-02-03T01:09:28ZengWileyAdvances in Civil Engineering1687-80861687-80942019-01-01201910.1155/2019/23676352367635Frost Heave of Irrigation Canals in Seasonal Frozen RegionsJian Xu0Qinze Wang1Jiulong Ding2Yanfeng Li3Songhe Wang4Yugui Yang5School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an, Shaanxi 710055, ChinaInstitute of Geotechnical Engineering, Xi’an University of Technology, Xi’an, Shaanxi 710048, ChinaInstitute of Geotechnical Engineering, Xi’an University of Technology, Xi’an, Shaanxi 710048, ChinaSchool of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an, Shaanxi 710055, ChinaInstitute of Geotechnical Engineering, Xi’an University of Technology, Xi’an, Shaanxi 710048, ChinaState Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221008, ChinaSoil frost heave acts as a driver of the emerged fracture in the concrete lining of irrigation canals and subsequent water leakage in seasonal frozen ground. A model test was carried out on the frost heave of a U-shaped canal with concrete lining. The heat and water migration during freezing, and frost heave-induced deformation, and force in normal direction were live monitored by high-precision transducers. The results prove that the freezing front descends downward over time at a specified thermal boundary, with considerable migration of water within the scope of 0–40 cm. The maximum deformation occurred at the bottom of the lining and decreased upward with the rate of frost heave lowering over time while the normal force showing little change in the monitoring points, implying that stress concentration does not show up during freezing. Besides, the layered settlement observation reveals that frost heave dominates the total deformation while creep, the universal source of deformation, accounts for a negligible proportion. A practical model was proposed based on a simple theoretical model for heat-water coupled transfer in a partially saturated medium and was numerically implemented in COMSOL. The computed results were compared with the monitored data including frozen depth, water content, normal displacement, and frost heave force. Finally, the rational thickness of the insulation board was determined based on the partial insulation method.http://dx.doi.org/10.1155/2019/2367635 |
| spellingShingle | Jian Xu Qinze Wang Jiulong Ding Yanfeng Li Songhe Wang Yugui Yang Frost Heave of Irrigation Canals in Seasonal Frozen Regions Advances in Civil Engineering |
| title | Frost Heave of Irrigation Canals in Seasonal Frozen Regions |
| title_full | Frost Heave of Irrigation Canals in Seasonal Frozen Regions |
| title_fullStr | Frost Heave of Irrigation Canals in Seasonal Frozen Regions |
| title_full_unstemmed | Frost Heave of Irrigation Canals in Seasonal Frozen Regions |
| title_short | Frost Heave of Irrigation Canals in Seasonal Frozen Regions |
| title_sort | frost heave of irrigation canals in seasonal frozen regions |
| url | http://dx.doi.org/10.1155/2019/2367635 |
| work_keys_str_mv | AT jianxu frostheaveofirrigationcanalsinseasonalfrozenregions AT qinzewang frostheaveofirrigationcanalsinseasonalfrozenregions AT jiulongding frostheaveofirrigationcanalsinseasonalfrozenregions AT yanfengli frostheaveofirrigationcanalsinseasonalfrozenregions AT songhewang frostheaveofirrigationcanalsinseasonalfrozenregions AT yuguiyang frostheaveofirrigationcanalsinseasonalfrozenregions |