International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 08 | Aug 2023
p-ISSN: 2395-0072
www.irjet.net
“DYNAMIC ANALYSIS OF GRAVITY RETAINING WALL WITH SOIL STRUCTURE INTERACTION” Dr. Pradeep P. Tapkire1, Somnath M. Patil2, Atul S. Chandanshive3 1H.O.D. Civil Dept., N.B. Navale Sinhgad College of Engineering, Solapur, Maharashtra, India-413255
2Research Scholar at N.B. Navale Sinhgad College of Engineering, Solapur, Maharashtra, India-413255 3Lecturer at Solapur Education Society’s Polytechnic, Solapur, Maharashtra, India -413002 ---------------------------------------------------------------------***--------------------------------------------------------------------In most of the conditions GRWs are constructed by using Abstract - Gravity retaining walls play a crucial role in
plain cement concrete. Sometimes stone or brick masonry is also used for construction of GRW. The GRW is likely to fail in any one of the following ways:
civil engineering by providing essential support to control soil erosion and maintain the stability of slopes and embankments. The interaction between these retaining walls and the surrounding soil is a complex phenomenon that becomes even more intricate when subjected to dynamic loads, such as seismic events or sudden impact loads. This study presents a comprehensive investigation into the dynamic behavior of gravity retaining walls, considering the intricate interplay between the wall and the surrounding soil. The analysis involves a detailed examination of soilstructure interaction (SSI) effects on the dynamic response of gravity retaining walls. A numerical framework based on finite element methods is developed to simulate the coupled behavior of the retaining wall and the underlying soil. The soil is modeled using appropriate constitutive models in software ANSYS 18.0 that capture its nonlinear and dynamic characteristics, while the retaining wall is represented as a rigid or flexible structure, depending on the specific scenario.
Failure due to overturning
3.
Failure due to excessive settlement
4.
Failure due to excessive scour of the earth under the base
A number of retaining wall failures have been reported during the post-earthquake reconnaissance. The structural response of retaining wall is a complex topic due to the soil structure interaction and uncertainties in the determination of actual earthquake data and soil properties. The frequent earthquake events, followed by the failure have increased the demand on the seismic design of retaining walls. The classic earth pressure theory of Coulomb (1776) and Rankine (1857) is widely used to determine the lateral earth pressure on the retaining wall.
A wall designed to maintain the difference in elevations of the ground surfaces on each side of the wall is called a retaining wall. The material that is retained on one side of wall is commonly called as back-fill and the wall is constructed to retain this backfill. Retaining walls are extensively used in connection with railways, highways, bridges, canals and many other engineering works whenever material is to be retained on one side of the wall.
1.1 Aim of Study To find out the feasible and economical cross section area of Gravity retaining wall for Dynamic loading considering soil structure interaction.
Gravity retaining wall, semi gravity retaining wall, cantilever retaining wall or T – wall and counterfort retaining wall etc. are common types of retaining walls. Besides these, few more types of retaining walls are also used like buttress retaining wall, braced wall, etc. Due to ease of the construction gravity retaining wall (GRW) is commonly used.
Impact Factor value: 8.226
2.
Amongst the three criteria, stability criteria against sliding is critical, as the area required to satisfy the criteria is more. This governing factor generally leads to a crosssection which is under stressed.
1. INTRODUCTION
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Failure due to sliding
First three types of failure are most common and hence while designing a GRW, the trail geometry of the crosssection is checked against first three stability criteria viz. sliding, overturning and bearing capacity given in the list. The cross-section of GRW is also checked for strength of material provided.
Key Words: Gravity Retaining Wall1, Soil Structure Interaction2, Dynamic Loading3
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2. Literature Review Retaining walls are not a new concept. Walls used to retain masses of soil have been around for thousands of years and
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