Statistical Analysis of Geotechnical Data.

Abstract

This report provides a tutorial introduction to practical techniques of statistical data analysis for geotechnical engineering--the intended audience is the practicing geotechnical engineer with little or no background in statistics. The approach summarizes soil parameters by two numbers: a best estimate and a measure of uncertainty. Uncertainties in soil parameter estimates of four types are considered--(a) variability in the soil deposit; (b) random measurement error; (c) measurement bias; and (d) limited numbers of tests. The first two cause data scatter. The second two cause systematic error. A procedure is developed to assess each source individually and then to combine them into a statistical soil profile. The statistical profile shows the best estimate of soil properties with depth and uncertainty envelopes about that profile. The statistical design profile is the first step in error analysis, as described in the accompanying report. AD-A186795. Keywords: Embankment dams; Risk assessment.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1987
Accession Number
ADA186797

Entities

People

  • Gregory Baecher

Tags

Communities of Interest

  • Energy and Power Technologies
  • Human Systems

DTIC Thesaurus Topics

  • Civil Engineering
  • Data Analysis
  • Data Mining
  • Data Science
  • Databases
  • Engineers
  • Geotechnical Engineering
  • Information Processing
  • Information Science
  • Maximum Likelihood Estimation
  • Mechanics
  • Probability
  • Regression Analysis
  • Statistical Algorithms
  • Statistical Analysis
  • Statistical Data
  • Statistics

Fields of Study

  • Engineering

Readers

  • Academic Conference Management
  • Coastal and Marine Engineering/Sediment Transport/Hydraulic Engineering
  • Computational Modeling and Simulation