• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 25 Issue 1
Mar.  2012
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Article Contents
NIU Cencen, WANG Qing, TAN Chun, CHEN Huie, ZHOU Fujun. Microstructure Fractal Feature of Dredger Fill during Seepage Flow Consolidation[J]. Journal of Southwest Jiaotong University, 2012, 25(1): 78-83. doi: 10.3969/j.issn.0258-2724.2012.021.01.013
Citation: NIU Cencen, WANG Qing, TAN Chun, CHEN Huie, ZHOU Fujun. Microstructure Fractal Feature of Dredger Fill during Seepage Flow Consolidation[J]. Journal of Southwest Jiaotong University, 2012, 25(1): 78-83. doi: 10.3969/j.issn.0258-2724.2012.021.01.013

Microstructure Fractal Feature of Dredger Fill during Seepage Flow Consolidation

doi: 10.3969/j.issn.0258-2724.2012.021.01.013
  • Received Date: 21 Mar 2011
  • Publish Date: 25 Feb 2012
  • In order to analyze the change law of the microstructure of dredger fill in the process of seepage flow consolidation, the fractal theory was applied to quantitatively describe the structural characteristics of the microstructure of dredger fill and analyze the curing mechanism of dredger fill. Laboratory tests, including granule analysis and soluble salt tests, were conducted to evaluate the engineering geological properties of dredger fill in the new coastal region of Tianjin. Based on the fractal theory, a quantitative analysis of the microstructure photos of samples was performed by the WD-5 picture processing system, and the changing regularity of the fractal dimension of dredger fill in the new coastal region in the process of seepage flow consolidation was investigated. The result shows that with the increase of seepage pressure, the morphology fractal dimension of structure elements of dredger fill in the new coastal region increases, while the box-counting fractal dimension decreases. Besides, the arrangement of structure elements tends to be dense and the morphology becomes complex. With the increase of consolidation load, the morphology fractal dimension of pores in the dredger fill increases, while the box-counting fractal dimension decreases. Meanwhile, small pores in the dredger fill increase, the volume of pores decreases, and the complexity enhances.

     

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