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Study on Estimation of Geotechnical Parameters

Author: JiangMin
Tutor: WangZuo
School: Wuhan University
Course: Geotechnical Engineering
Keywords: Geotechnical Parameter Estimation Variability Light penetration Regression Analysis Regionalized variable theory
CLC: TU452
Type: Master's thesis
Year: 2005
Downloads: 292
Quote: 1
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Abstract


The most important feature of geotechnical materials is a complex variability , the parameter value has a significant uncertainty. Since variance can not know the extent of their true parameter distribution , engineering had to make certain assumptions . Geotechnical parameters estimation of reliability analysis of geotechnical engineering difficulties and key , until now, is still the most important aspects of the study . Based on the different circumstances of probability and statistics with classical methods and geostatistical methods for estimation of geotechnical parameters were systematically studied , which facilitate the determination of geotechnical design parameters and the correct choice makes sense. Text of the main work is as follows : 1. Introduces geotechnical parameter uncertainty causes and some can be used for analysis and evaluation methods . (2) The portable penetrometer for embankment fill dry density for the rapid detection , a lot of light in the scene and indoor penetration test soil test , linear regression , logarithmic regression , polynomial regression and other means, regression analysis , study water content, dry density and hammering correlation evaluated the reasonableness of the method and its application prospect. 3 using the filter paper method of suction and a lot of field testing the amount of moisture experience matric suction and water content were studied the correlation and fit their empirical formulas . 4 introduced a system of regionalized variable theory, and carried out according to the theoretical variogram with examples of theoretical models and structural analysis . 5 for ordinary kriging , collaborative kriging and universal kriging For three spatial estimation methods were introduced locally , with examples calculated. 6 combined transport - three highway projects , the use of geostatistical methods to draw a ram backfill compaction estimates contour map , and use compaction density correlation with dry with a dry density of information to estimate the degree of compaction of the information proved to geostatistics applied geotechnical parameters space optimal estimate is very meaningful .

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CLC: > Industrial Technology > Building Science > Soil mechanics,foundation engineering > Rock ( rock ) mechanics and rock testing > Rock mechanical properties and stress theory
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