Research Articles | Challenge Journal of Concrete Research Letters

Investigation of optimal designs for concrete cantilever retaining walls in different soils

Esra Uray, Serdar Çarbaş, İbrahim Hakkı Erkan, Murat Olgun


DOI: https://doi.org/10.20528/cjcrl.2020.02.003
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Abstract


In this paper, the investigation of the optimum designs for two types of concrete cantilever retaining walls was performed utilizing the artificial bee colony algorithm. Stability conditions like safety factors sliding, overturning and bearing capacity and some geometric instances due to inherent of the wall were considered as the design constraints. The effect of the existence of the key in wall design on the objective function was probed for changeable properties of foundation and backfill soils. In optimization analysis, wall concrete weight which directly affect parameters such as carbon dioxide emission and the cost was considered as the objective function and analyzes were performed according to different discrete design variables. The optimum concrete cantilever retaining wall designs satisfying constraints of stability conditions and geometric instances were obtained for different soil cases. Optimum designs of concrete cantilever retaining wall with the key were attained in some soil cases which were not found the feasible optimum solution of the concrete cantilever retaining wall. Results illustrate that the artificial bee colony algorithm was a favorable metaheuristic optimization method to gain optimum designs of concrete cantilever retaining wall.


Keywords


concrete cantilever retaining wall; check for sliding, overturning, and bearing capacity; optimum design; discrete design variables; artificial bee colony algorithm

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