Abstract
The shape of the reinforcement for stabilizing slopes in geotechnical application is usually based on empirical methods, and is often in the shape of a grouted curtain to cover the slope surface to increase the shear strength. The reinforcement optimization is an important measure to achieve the most stable shape with the determined amount of materials. This paper aims at exploring the state-of-the-art design of reinforcement to approach stability in the slope using minimum amount of the reinforcement. In this research, enhancement in the bi-directional evolutionary structural optimization method has been made to optimize the reinforced layers in slope stabilization design. Through an iterative approach, the stability of slope is increased by addition of reinforced material to minimize total deformation. A new analytical technique for the slope reinforcement optimization has been introduced based on strain sensitivity analysis. The obtained results show a reasonable resemblance to the practical slope reinforcement solutions. The process of optimization requires the finite element analysis to assess elements respond which is carried out by finite element package ABAQUS in this research.
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