›› 2005, Vol. 26 ›› Issue (8): 1211-1215.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Development of the super mini-penetrometer and its application

SHI Bin, LIU Zhi-bin, CAI Yi   

  1. ACEI, Dept. of Earth Sciences, Nanjing University, Nanjing 210093, China
  • Received:2004-09-16 Online:2005-08-10 Published:2013-12-26

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Abstract: A SMP—1 super mini-penetrometer was made for the interest of knowing the distribution and strength of aggregates in unsaturated soils well. The work principle and buildup of this apparatus is briefly introduced; and then the feasibility and availability of the application of the apparatus are demonstrated through the penetration tests with the samples of dough and expansive soils treated by lime. It is shown from the test results that the curve of the resistance force to the end of the needle versus depth during penetration can be presented and the strength distribution isoline maps of aggregates in any vertical section or horizontal plane of the defined cube-like blocks of the samples, which can show the intra-structural diversity and nonuniformity of samples, are obtained with the application of the apparatus. The successful manufacture of the apparatus, therefore, provides a new method for studying the distribution, inner structure and strength of aggregates in engineering soils.

Key words: super mini-penetrometer, unsaturated soils, aggregates, strength distribution, nonuniformity, structure

CLC Number: 

  • TU 415
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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