Statistical Estimations of Geological Material Model Parameters from Cylindrical in-Situ Test Data.

Abstract

A developmental study was performed to aid in the identification of soil properties from Cylindrical in situ tests (CIST) data. A mathematical algorithm was developed which, using prior estimates of the properties and velocity-time history data from the tests, provided improved estimates of the parameters in the soil model. The algorithm was tested using a computational experiment, i.e., a finite-difference code was used to generate a set of velocity-time history responses based on a predetermined set of parameters. The algorithm was then used to determine a set of parameters based on the data, and comparisons were made with the exact solution. After a number of cycles through the algorithm, a set of parameters was derived which provided satisfactory matching of the velocity-time histories.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1977
Accession Number
ADA039184

Entities

People

  • Bruce Kennedy
  • Jerrold Isenberg
  • John D. Collins

Organizations

  • University of New Mexico

Tags

Communities of Interest

  • Counter WMD
  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Algorithms
  • Civil Engineering
  • Computational Science
  • Contracts
  • Estimators
  • Hydrostats
  • Mathematical Models
  • Measurement
  • Mechanics
  • Models
  • New Mexico
  • Sequences
  • Soil Models
  • Soils
  • Statistical Algorithms
  • Waveforms

Readers

  • Computational Modeling and Simulation
  • Geotechnical Engineering.
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