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LI Ming-jie, JIANG Ying-jun, ZHANG Jun-jie, WANG Shun, DAI Jing-liang. Vibration test method of semi-rigid base course material[J]. Journal of Traffic and Transportation Engineering, 2010, 10(1): 6-12. doi: 10.19818/j.cnki.1671-1637.2010.01.002
Citation: LI Ming-jie, JIANG Ying-jun, ZHANG Jun-jie, WANG Shun, DAI Jing-liang. Vibration test method of semi-rigid base course material[J]. Journal of Traffic and Transportation Engineering, 2010, 10(1): 6-12. doi: 10.19818/j.cnki.1671-1637.2010.01.002
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Vibration test method of semi-rigid base course material

doi: 10.19818/j.cnki.1671-1637.2010.01.002
  • 1.

    Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang'an University, Xi'an 710064, Shaanxi, China

  • 2.

    Highway Administration Bureau, Department of Transportation of Henan Province, Zhengzhou 450052, Henan, China

  • 3.

    Langfang Management Department of Langcang Expressway, Langfang 065000, Hebei, China

More Information
  • Author Bio:

    LI Ming-jie(1974-), male, senior engineer, doctoral student, + 86-29-62630078, jyj@gl.chd.edu.cn

    DAI Jing-liang(1940-), male, professor, + 86-29-82334840, DJL@gl.chd.edu.cn

  • Received Date: 2009-07-23
  • Publish Date: 2010-02-25
    Abstract
  • Based on simulating the on-the-spot rolling working condition and impact of semi-rigid base course to maximal extent, the dry density and gradation of semi-rigid base course material were tested, the influence of vibration parameters on the compacting effect of semi-rigid base course material was studied, and a vibration test method of semi-rigid base course material was put forward. It is pointed that the optimum vibration parameters of vibration compaction test machine are vibration frequency at 30 Hz, excitation force at 7.6 kN, nominal vibration amplitude at 1.2 mm and vibrator mass at 300 kg, and the maximum dry density by 100 s vibration compaction is equal to the on-the-spot one. On the basis, the average accuracy of the maximum dry density and the average unconfined compressive strength by the method are 100.0% and 112.6%respectively, and they are 96. 9% and 42. 9% respectively by standard heavy compaction test and static compaction test. The result indicates that real base structure can be simulated accurately by the method, and the specimens produced by the method can represent the component structure and performance of on-site semi-rigid base.

     

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