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Estimation of Initial Stiffness and Vertical Stress-Strain Behavior of Common Sheet Geosynthetic Reinforced Soil (GRS) Masses.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Estimation of Initial Stiffness and Vertical Stress-Strain Behavior of Common Sheet Geosynthetic Reinforced Soil (GRS) Masses./
作者:	Harron, Christopher Michael.
面頁冊數:	1 online resource (219 pages)
附註:	Source: Masters Abstracts International, Volume: 84-12.
Contained By:	Masters Abstracts International84-12.
標題:	Civil engineering. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30490507click for full text (PQDT)
ISBN:	9798379596194

Estimation of Initial Stiffness and Vertical Stress-Strain Behavior of Common Sheet Geosynthetic Reinforced Soil (GRS) Masses.
Harron, Christopher Michael.

Estimation of Initial Stiffness and Vertical Stress-Strain Behavior of Common Sheet Geosynthetic Reinforced Soil (GRS) Masses. - 1 online resource (219 pages)

Source: Masters Abstracts International, Volume: 84-12.

Thesis (M.S.)--University of Colorado at Denver, 2023.

Includes bibliographical references

Research for load bearing geosynthetic-reinforced soil (GRS) structures has primarily focused on quantifying capacity. GRS abutments typically have service loads of about 190 kPa (4,000 psf), which is only about 10% to 20% of their capacity. In practice, the design of load bearing GRS masses is limited by deformation rather than capacity and deformation is a function of stiffness. Previous analytical models for determining the stiffness of GRS focused on plastic deformation, but a significant amount of the deformation at service loads is elastic and is represented by the Young's modulus.This study proposed a simple equation for estimating the Young's modulus of a GRS mass that uses "common" sheet geosynthetics. Common geosynthetics are those that rupture at about 10% strain. An analytical method to predict the vertical stress-strain curves of GRS masses with common sheet geosynthetics was also developed. The method uses the new GRS Young's modulus equation and previously developed equations by others to calculate the internal capacity of GRS as inputs for the well-known hyperbolic soil method. Charts were created to estimate the vertical deformation error of the proposed hyperbolic GRS method.The GRS Young's modulus equation and the hyperbolic GRS method were verified using measured data from large-scale experiments published by others. It was found that the proposed GRS young's modulus equation can be used directly to estimate the load-deformation behavior of GRS masses with common sheet reinforcement at low vertical strains (≤ 0.5%). The hyperbolic GRS method was found to be able to estimate the load-deformation behavior of GRS masses with common sheet reinforcement at low and high vertical strains, however, the error of the estimate must be carefully considered.Application of the proposed analytical methods to the internal stability design of the Federal Highway Administration's (FHWA) Geosynthetic Reinforced Soil Integrated Bridge System (GRS-IBS) was investigated. Based on comparisons with measured data from large-scale experiments published by others, the proposed analytical methods resulted in more accurate estimations of both the strength limit state and the service limit state and can be used at higher service loads than the current analytical methods when error is considered.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798379596194Subjects--Topical Terms:

860360
Civil engineering.
Subjects--Index Terms:

Geosynthetic Reinforced SoilIndex Terms--Genre/Form:

542853
Electronic books.

Estimation of Initial Stiffness and Vertical Stress-Strain Behavior of Common Sheet Geosynthetic Reinforced Soil (GRS) Masses.
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