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Published in:
2019 | OriginalPaper | Chapter
Evaluation of Soil Parameters by Using Light Cone Penetrometer
Authors : S. P. Raghu Prasanth, A. Arun Perumal, K. Ilamparuthi
Published in: Geotechnical Characterisation and Geoenvironmental Engineering
Publisher: Springer Singapore
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Abstract
Conventional investigation methods such as standard penetration test and cone penetration test fail to identify weak deposits like soft clay, and designing the foundation without identifying the presence of such layer and its strength is risky. Under the conditions stated, a simple field testing equipment is required to operate in such deposits and is also to be well suited for projects like road works, simple buildings. One such equipment is a light cone penetrometer (LCPT). Tests are done using LCPT at a few sites, and resistances are recorded over a depth of 6 m at each location. Resistances are also measured by conducting standard penetration test at location wherever LCPT was done. Correlation between LCPT and SPT resistances is developed. Simultaneously soil samples are collected from each location of LCPT and tested in laboratory for index properties and parameters such as shear strength, compressibility and field CBR. These soil parameters are correlated with the LCPT resistance individually.