01090776

Component

https://doi.org/10.3141/2053-07

http://scholar.google.com...vant&publication_year=2008

Computerized MS-Windows Visual Basic software of a cone penetration test (CPT) for soil classification was developed as part of an extensive effort to facilitate the implementation of CPT technology in many geotechnical engineering applications. Five CPT soil engineering classification systems were implemented as a handy, user-friendly, software tool for geotechnical engineers. In the probabilistic region estimation and fuzzy classification methods, a conformal transformation is first applied to determine the profile of soil classification index (U) with depth from cone tip resistance (qc) and friction ratio (Rf). A statistical correlation was established in the probabilistic region estimation method between the U index and the compositional soil type given by the Unified Soil Classification System. Conversely, the CPT fuzzy classification emphasizes the certainty of soil behavior. The Schmertmann and Douglas and Olsen methods provide soil classification charts based on cone tip resistance and friction ratio. However, Robertson et al. proposed a three-dimensional classification system that is presented in two charts: one chart uses corrected tip resistance (qt) and friction ratio (Rf); the other chart uses qt and pore pressure parameter (Bq) as input data. Five sites in Louisiana were selected for this study. For each site, CPT tests and the corresponding soil boring results were correlated. The soil classification results obtained using the five different CPT soil classification methods were compared.

01111966

English

pp 47-64

2008

Transportation Research Record: Journal of the Transportation Research Board

9780309113175

Print

Figures (12) ; Photos (1) ; References (11) ; Tables (1)

Cone penetrometers; Geotechnical engineering; Soil penetration test; Soil types

Microsoft Windows; Visual Basic

Soil classification

Louisiana

Geotechnology; Highways; I41: General Soil Surveys; I42: Soil Mechanics

TRIS, TRB, ATRI

Jan 29 2008 3:06PM

• Comparisons Between Field and Laboratory Suction Measurements of Expansive Clays
• Correlation Between Resilient Modulus and Plastic Deformation for Cohesive Subgrade Soil Under Repeated Loading
• Correlations Between PENCEL Pressuremeter, Cone Penetrometer, and Dilatometer Parameters
• Determining Moisture Content of Soil Layers with Time Domain Reflectometry and Micromechanics
• Development of Frost and Thaw Depth Predictors for Decision Making About Variable Load Restrictions
• Evaluating Climate Change Impact on Low-Volume Roads in Southern Canada
• Fly Ash–Calcium Chloride Stabilization in Road Construction
• Sensor Technology for Decision Support of Spring Load Restrictions