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Fractal Structure of Granularity Composition of Soil in Roadbed in Seasonal Frost Regions

ZHAO An-ping, WANG Qing, LI Yang   

  1. College of Construction Engineering, Jilin University, Changchun 130026, China
  • Received:2005-09-21 Revised:1900-01-01 Online:2006-07-26 Published:2006-07-26
  • Contact: WANG Qing

Abstract: There were three groups soil as research objects, which came from Changchun-Siping A road, Changchun-Songyuan A road and some road in north of Changchun, many tests were done in lab and many datum were gotten. According to these tests and datum to fractal theory,discuss fractal structure of granularity composition of soil in roadbed, compute fractal dimensions and look on it as one index of soil granularity component,discuss relations between fractal dimensions and soil heave form, soil freeze capacity. Researches discover: soil is easy to form original heave when fractal dimensions are bigger, and its freeze capacity is smaller. Whereas, it easy to form segregate heave and freeze capacity is bigger. The regression relationship between fractal dimension and physical and mechanical property of soil indicates that fractal dimension characterizes the soil engineering geological features.

Key words: granularity composition, fractal structure, fractal dimensions, soil heave

CLC Number: 

  • P642
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