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Effects Of Reinforcement Parameters On The Behavior Of Geosynthetic Reinforced Foundation Beds

Electronic Theses of Indian Institute of Science

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Title Effects Of Reinforcement Parameters On The Behavior Of Geosynthetic Reinforced Foundation Beds
 
Creator Bhimrao, Somwanshi Amit
 
Subject Foundations (Civil Engineering)
Reinforced Soil Foundations
Geosynthetics
Sand - Properties
Planar Reinforcement
Reinforced Soil Foundation - Numerical Simulations
Geosynthetic Reinforcement
Regression Model
Reinforced Sand
Square Footings
Reinforced Foundation Beds
Structural Engineering
 
Description Use of geosynthetics for reinforcing soil beds supporting shallow foundations has gained tremendous popularity in recent times. In this thesis, to study and understand the behaviour of geosynthetics reinforced soil foundations, model load tests are carried out on square footings resting on sand beds reinforced with geosynthetics. The effects of various parameters like type and tensile strength of geosynthetic material, depth of reinforced zone, spacing of reinforcement layers, width of reinforcement and form of reinforcement on the performance of square footings on reinforced sand beds are studied. Results from these tests are analyzed to understand the effect of various parameters in improving the bearing capacity and reducing the settlement of footings.
An equation is developed to estimate the ultimate bearing capacity of square footings resting on geosynthetic reinforced sand beds by multiple regression analysis of the experimental data. The model loading tests on reinforced soil foundations are simulated in the numerical model using the computer program FLAC3D (Fast Lagrangian Analysis of Continua in 3D). Finally parametric studies on a full scale reinforced soil foundation are conducted.
From the experimental, analytical and numerical investigations carried out in this thesis, some important conclusions are drawn regarding the effective depth of reinforced zone, optimum spacing and quantity of reinforcement layers. Relative efficiency of various forms of reinforcement is discussed. Validity of the regression and numerical models developed is verified through experimental data from present study and also for data from other researchers.
 
Contributor Madhavi Latha, G
 
Date 2010-09-22T06:54:02Z
2010-09-22T06:54:02Z
2010-09-22
2009-01
 
Type Thesis
 
Identifier http://hdl.handle.net/2005/876
 
Language en_US
 
Relation G22920