Journal Published Online: 01 July 2006
Volume 29, Issue 6

A Micropenetrometer for Detecting Structural Strength Inside Soft Soils

CODEN: GTJODJ

Abstract

A micropenetrometer is developed to measure structural strength inside soft soils. Different from the traditional detective technology for soil structure, the micropenetrometer is an intrusion technology to estimate the characteristics of soft soils. The work principle and main configuration of the micropenetrometer are introduced, followed by its calibration and some operation techniques. Finally, two application tests are carried out. Different soil textures such as sandy soil or clayey soil have different types of penetration curves. Through the end resistance variation, detailed description of the structural strength along penetration depth can be obtained. In addition, three-dimensional strength distribution on the vertical or transverse sections can be achieved from the penetration data evenly arranged on the grid nodes of the same surface through interpolation method. Such a technique is of significance for checking the effectiveness of soil improvement or monitoring the moisture movement in soil.

Author Information

Liu, Z
Discipline of Civil, Surveying and Environmental Engineering, The University of Newcastle, NSW, Australia
Shi, B
Nanjing University, Nanjing, China
Sheng, D
Discipline of Civil, Surveying and Environmental Engineering, The University of Newcastle, NSW, Australia
Pages: 8
Price: $25.00
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Details
Stock #: GTJ100304
ISSN: 0149-6115
DOI: 10.1520/GTJ100304