Effects of Sample Preparation Method on Rockfill’s Strengthand Deformation Behaviors
[1]FU Hua,LING Hua,ZHANG Yali,et al.Effects of Sample Preparation Method on Rockfill’s Strengthand Deformation Behaviors[J].Journal of Zhengzhou University (Engineering Science),2012,33(05):49-52.[doi:10.3969/j.issn.1671-6833.2012.05.011]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
33卷
Number of periods:
2012 05
Page number:
49-52
Column:
Public date:
2012-09-10
- Title:
- Effects of Sample Preparation Method on Rockfill’s Strengthand Deformation Behaviors
- Keywords:
- rockfill; sample preparation method ; maximum dry density; strength and deformation behavior
- CLC:
- TU47
- DOI:
- 10.3969/j.issn.1671-6833.2012.05.011
- Abstract:
- Comparative tests of rockfill’s sample preparation method between surface vibration compaction andshaking table declared that the maximum dry density which got by surface vibration is higher than that of shaking table’’s. According to the samples by this two different methods, large triaxial tests was conducted whichdeclared that the sample preparation method has an obvious effect on rockfill’s strength and especially on thedeformation behaviors, the indexes which correspond to surface vibration method is better than that of shakingtable’s. It suggested that surface vibration method should be taken as the method of rockfill’s laboratory max.imum dry density determination by taking the process of sample preparation with surface vibration almost simi.lar with the process of roller compaction during earth-rock dam’s construction into account. With the commonuse of heavy roller equipment in earth-rock dam’s construction, the density difference between laboratory andfield can be reduced by improving the vibration power through adjusting the bottom static pressure and prolon.ging the vibration time.
- References:
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- Similar References:
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Last Update:
1900-01-01