A Survey on Common Proportions and Stability of Multi Cylindrical Shell Retaining Wall

ABSTRACT: Retaining walls are structures used to provide stability for earth or other material where conditions disallow the mass to assume its natural slope and are commonly used to hold back or support soil banks coal or ore piles, and water. Retaining walls must be of adequate proportions to resist overturning (or excessive tilting) and sliding as well as being structurally adequate. Recognition of retaining walls behavior, selection of the best and the most economical design, and the most logical form and their required specifications are the most important issues and worries of designing engineers during designing period. So recognition of the main effective elements on wall construction expenses, and the effect of limitations on acquiring the most economical wall can be a proper help and deserves being completely studied from all points of view in order to acquire the most economical and from the point of technical aspect the most suitable one. According to the elements of design resulting from the theoretical researches on former retaining walls, and for lightening them; in this article a new constructing design of lightened retaining walls is suggested. Meanwhile common proportions and stability of multi cylindrical shell retaining wall have been discussed in this paper.