The TEAM method : a statistical approach for improved reliability of pile capacity prediction /
The problem of large variability in Predicted pile capacity
| Main Author: | |
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| Format: | Thesis Book |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1994.
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| Subjects: | |
| Online Access: | http://proxy.library.tamu.edu/login?url=http://proquest.umi.com/pqdweb?did=741965211&sid=1&Fmt=2&clientId=2945&RQT=309&VName=PQD |
| Summary: | The problem of large variability in Predicted pile capacity by various deterministic models is studied in relation to the measured capacity. Ten popularly used pile capacity prediction methods are evaluated for their predictive performance and for overall model uncertainty. An independent database with 95 pile load tests performed by the Mississippi Department of Transportation is electronically organized for this purpose. A method of evaluating the predictive performance and the overall model uncertainty is studied. Ranking of the methods based on the statistical parameters of model uncertainty and the predictive performance is carried out. A TEAM approach to reduce the model uncertainty and improve the reliability of pile capacity prediction is proposed. It involves using a group of carefully selected deterministic models, such that the total error component is kept to a minimum. The TEAM approach is proposed at three levels. A mathematical validation of the TEAM approach is presented. The relation between the risk of non performance and the factor of safety is analyzed by assuming a limit state function. The unified TEAM model is shown to be an improved model compared to the individual deterministic models. The improvement is in the reduced model uncertainty and the reduced risk of non performance. A logical and sound framework is proposed for evaluating other foundation databases. |
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| Item Description: | Vita. "Major Subject: Civil Engineering". |
| Physical Description: | 2 volumes : illustrations ; 28 cm. Issued also on microfiche from University Microfilms Inc. |
| Bibliography: | Includes bibliographical references. |