|
|
|
| Mechanism Analysis of Subgrade Frost Heaving in Seasonally Frozen Regions |
| WANG Shu-juan, CHEN Zhi-guo, QIN Wei-jun, YU Li-mei |
| Jilin Provincial Communications Scientific Research Institute, Changchun Jilin 130012, China |
|
|
|
|
Abstract To elucidate the frost heaving mechanism of subgrade, as well as reduce cracking, subsidence, and mudding due to water freezing and thawing in seasonally frozen regions, temperature sensors were embedded in the subgrade in a heavily frozen region to automatically monitor subgrade temperature during freeze periods. A drilling investigation was also conducted to determine the typical disease caused by road frost. Results show that (1) The upper roadbed exhibited a wide cooling range and a high cooling rate. (2) The lower roadbed exhibited a narrow cooling range and a low cooling rate; sufficient moisture transfer and accumulation occurred. The depth of the ice accumulation zone is found in this roadbed. (3) Different ice formations developed on various subgrade soils, and the depth and moisture content of these formations presented some regularity. (4) The mean depth of the ice accumulation zone was 1.08 m to 1.65 m, and the scope of mean moisture content was 14.7% to 23%. The maximum moisture content approached or exceeded the plastic limit of soil. Therefore, ice crystals separated, making up the majority of frost heave. On the basis of these findings, drainage and water block measures should be implemented to control subgrade moisture and enhance the management of the homogeneity and density of subgrade fillers. These measures will minimize and prevent frost-related problems.
|
|
Received: 10 January 2013
|
| Fund:Supported by the Road and Transport R&D Project for Western Regions of China Commissioned by Ministry of Transport (No.200731880156) |
|
Corresponding Authors:
WANG Shu-juan, wangshujuan224@163.com
E-mail: wangshujuan224@163.com
|
|
|
|
[1] CHENG Guo-dong. International Achievements of Study on Frozen Soil Mechanics and Engineering[J]. Advance in Earth Sciences, 2001, 16(3):293-299.(in Chinese)
[2] CHENG Guo-dong,MA Wei. A Research Review of International Permafrost Engineering[J]. Journal of Glaciology and Geocryology, 2003, 25(3):303-308. (in Chinese)
[3] ZHAO An-ping. A Study on the Mechanism of Microstructure of Frost Heaving in Subgrade Soil in Seasonal Frost Zone[D]. Changchun:Jilin University, 2008. (in Chinese)
[4] YUAN Guo-hong. The Mechanism and Numerical Simulation of Water Transfer in Seasonal Freezing Soil[D]. Changchun:Jilin University, 2008. (in Chinese)
[5] WANG Shuang-jie, LI Zhu-long. Research on Highway Construction Technology in the Permafrost Region of China[J].Journal of Highway and Transportation Research and Development,2008,25(1):1-9. (in Chinese)
[6] LI Ping, XU Xue-zu, CHEN Feng-feng. State and Progress of Research on the Frozen Fringe and Frost Heave Prediction Models[J]. Journal of Glaciolgy and Geocryology,2000,22(1):90-95. (in Chinese)
[7] NI Tie-shan. The Analysis and Prevention Measures to the Subgrade of Seasonal Frozen Area Railway Line[D]. Changchun:Jilin University, 2009. (in Chinese)
[8] GU Xian-ming. Study on Mechanism and Prevention of Frost Heaving and Frost Boiling in Seasonally Frozen Road[D]. Changchun:Jilin University, 2007. (in Chinese)
[9] ZHONG Min-hui, WANG Shao-bin. Research on Frost Heaving and Control Measures of Subgrade in Seasonal Frozen Region[J]. Railway Engineering,2009(4):96-98. (in Chinese)
[10] DU Zhao-cheng, ZHANG Xi-fa, XIN De-gang, et al. Experiment Research on Subgrade Frost Heaving of Expressway in Seasonally Frozen Soil Region[J].Highway, 2004(1):139-144. (in Chinese)
[11] ZHANG Dong-qing. The Research on Diseases of Seasonally Frozen Roadbed and Control Measures[D]. Changchun:Jilin University,2008. (in Chinese)
[12] 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 Glaciolgy and Geocryology, 2004,26(4):454-460. (in Chinese)
[13] SU Qun. The Principle and Prevention Countermeasure of Subgrade Soil Heaving in Northeast Region[J]. Journal of Heilongjiang Institute of Technology, 2001, 15(1):2-3. (in Chinese)
[14] HUO Kai-cheng, HUANG Ji-ye, LUO Guo-rong. On Mechanism of Freeze-Heave and Its Treatment in Roadbeds[J]. Journal of Rock Mechanics and Engineering, 2002, 21(7):1099-1103. (in Chinese)
[15] SONG Hui, ZHU Ming, YUAN Wen-zhong. Research on Freezing and Thawing of Subgrade in Seasonal Frozen Region[J]. Subgrade Engineering, 2007(1):26-28. (in Chinese) |
| [1] |
LI Ning, MA Biao, LI Rui, SI Wei. Performance of Unbound Aggregate Materials under Single-stage and Multi-stage Loading Modes Based on Precision Unbounded Material Analyzer[J]. Journal of Highway and Transportation Research and Development, 2019, 13(2): 1-12. |
| [2] |
XU Hai-liang, REN He-huan, HE Zhao-cai, HE Lian. Time-domain Analysis of Deformation Characteristics of Asphalt Concrete Pavement Considering Vehicle-pavement Coupled Effect[J]. Journal of Highway and Transportation Research and Development, 2019, 13(2): 13-19. |
| [3] |
DU Jian-huan, AI Chang-fa, HUANG Chao, GUO Yu-jin, JIANG Yun-bing. Effect of Interfacial Water on the Fatigue Performance of Composite Asphalt Mixture Beams[J]. Journal of Highway and Transportation Research and Development, 2019, 13(1): 1-7. |
| [4] |
YAO Guo-qiang, YAN Zhi-xin, LONG Zhe, ZHAI Ju-yun. Simulation Experimental Study on Shear Stress Distribution of Rock Slope Anchoring Interface[J]. Journal of Highway and Transportation Research and Development, 2019, 13(1): 8-15. |
| [5] |
LIU Ze, HE Fan, HUANG Tian-qi, JIANG Mei-dong. Additional Earth Pressure of Retaining Wall Caused by Vehicle Load[J]. Journal of Highway and Transportation Research and Development, 2019, 13(1): 16-23. |
| [6] |
QIU Xin, XU Jing-xian, TAO Jue-qiang, YANG Qing. Asphalt Pavement Icing Condition Criterion and SVM-based Prediction Analysis[J]. Journal of Highway and Transportation Research and Development, 2018, 12(4): 1-9. |
|
|
|
|
2013, Vol. 7 
