Performance Analysis of Introjected Backfill Retaining Wall

Earth retaining structures can endure lateral stresses from the held soil as well as additional pressure from neighboring structures foundation, moving vehicles, or any other dynamic movement. While designing retaining walls, the amount and distribution of soil earth pressures are critical. The economy of retaining wall structure is depends on amount of earth pressure developed. Many techniques have been developed in the past to reduce soil lateral earth pressure on wall in order to create a cost-effective design. Provision of pressure relief shelves, use of light weight backfill, and inclusion of compressible geofoam, etc., are a few of approaches used. One of the least explores solution for reducing lateral earth pressure on retaining walls is Introjected backfill retaining wall. Introjected backfill wall consist of pressure relief shelves projected toward backfill side. Static load, i.e., pressure load is applied on backfill soil for numerical simulation. The objective of the present study is to find out how effective relief shelves are at reducing retaining wall deflection and settlement of the backfill under various static loading conditions. A 14 m high retaining wall with and without relief shelves by varying width is analyzed using finite element code ABAQUS2020.