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WANG Shuang-jie, HUANG Xiao-ming, NI Yi-hong. Infiltrating properties of modified swelling soil subgrade[J]. Journal of Traffic and Transportation Engineering, 2004, 4(1): 15-20.
Citation: WANG Shuang-jie, HUANG Xiao-ming, NI Yi-hong. Infiltrating properties of modified swelling soil subgrade[J]. Journal of Traffic and Transportation Engineering, 2004, 4(1): 15-20.
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Infiltrating properties of modified swelling soil subgrade

  • 1.

    School of Transportation, Southeast University, Nanjing 210096, China

  • 2.

    The First Highway Survey and Design Institute of China, Xi'an 710075, China

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  • Author Bio:

    WANG Shuang-jie(1962-), male, senior engineer, doctoral student, 86-29-88320807, Wangshj@ccroad.com.cn.

  • Received Date: 2003-11-27
  • Publish Date: 2004-02-25
    Abstract
  • The physical properties, mineral composition and expansive-shrinkage characteristics of the borrow soil were studied, and the evaluation of expansive potential was carried out. The influence of lime-swelling soil by rainfall was analyzed. The results show that the expansion and shrinkage change obviously, the compaction degree lowers clearly and the strong expansive appears where the soil compaction is high. 90 days later, the subgrade deflection becomes stable, and reaches the required strength. As for the subgrade filled with improved light or mid lime-swelling soil, the influence of rainfall appears during the early days of the filled subgrade, and its strength will recovers continuously while the water content lowers naturally.

     

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    • References(5)
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    [2] JTJ 013-95, 公路路基设计规范[S].
    [3] WANG Xiao-jun, ZHAO Zhong-xiu. Experimental research on swelling rock's roaded improved with lime-additive[J]. Chinese Journal of Geotechnical Engineering, 1998, 20(1): 39-43. (in Chinese)
    [4] Robert W D. Swell-Shrink Behavior of Compacted Clay[M]. AS- CE, 1993.
    [5] YU Xiang-juan. Testing method on filling material for expansion soil subgrade[J]. Journal of Hohai University, 1999, 27(4): 68-72. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-SXCJ202012005.htm
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