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Geomechanics and Engineering
  Volume 11, Number 1, July 2016, pages 161-175

Experimental study on deformation and strength property of compacted loess
Yuan Mei, Chang-Ming Hu, Yi-Li Yuan, Xue-Yan Wang and Nan Zhao

    A series of experimental studies are conducted on the deformation and shear strength property of compacted loess. The results reveal that the relationships of both the initial moisture content (w) and the initial degree of compaction (K) of compacted loess with cohesion (w) and the angle of internal friction (φ) are linear. The relationship between the secant modulus (Esoi) and K is also linear. The relationship between Esoi and w can be fitted well by a second-order polynomial. Further, when the influences of w and K are ignored, the relationship between the confined compression strain (ε) and vertical pressure (p) can be expressed by a formula. A correction formula for the deformation of compacted loess caused by a change in w and K is derived on the basis of the study results.
Key Words
    compacted loess; shear strength; deformation property; deformation correction formula
(1) Yuan Mei, Chang-Ming Hu, Yi-Li Yuan, Xue-Yan Wang, Nan Zhao:
College of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an, China;
(2) Xue-Yan Wang:
College of Environmental and Chemical Engineering, Xi'an Polytechnic University, Xi'an, China.

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