Parametric Studies on the Behaviour of Reinforced Soil Retaining

Delhi, has carried similar studies. In his studies, an attempt was made to determine
the influence of changes in geometry and applied load in the responses of the
reinforced soil retaining walls. There are four categories of soil types that he
examined as case studies - loose sand, dense sand, silty sand and clayey sand. In
addition, the soil parameters for both the wall and the foundation in his each case of
study were assumed uniforms (i.e. the same soil parameters were used for both the
foundation and the fill).
However, my own study focused on the parametric analysis of the same wall and soil
cases but with limestone as foundation material under static loading. Hence, there are
three stages with two categories of analyses, involved in this part of my dissertation
namely:
<strong>Parametric</strong> analysis of the same wall with the same conditions of geometry and
soil parameters like the case of Mr. Gaurav Singhai.
<strong>Parametric</strong> analysis of the same wall but different foundation material.
Analysis and comparison of the results obtained from the first two stages.
The idea is to determine the behaviour of the wall with underlying limestone as
foundation material and any variation in the behaviour of the wall in each case
(results of stages one and two). The geometry of soil layer and the reinforcement
(geogrids) are varied in order to determine the response of the reinforced soil
retaining wall and the results are analysed by comparing the horizontal and vertical
displacements. Four different cases representing four different soil types with
different geotechnical properties are considered in this analysis. The influence of
changes in the applied load was also investigated. The response of the reinforced soil
retaining walls (RRW) in each case is considered and compared for the optimum
design of the (RRW).
1.2.2 Numerical Analysis of Reinforced Soil Retaining Walls for Appropriate
Geogrids Stiffness Selection
Nowadays geosynthetics have been used as a routine reinforcement in earth
structures such as mechanically stabilized earth (MSE) walls, column-supported
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