Volume-optimised reverse taper piles

Abstract


Pile foundations are often subject to natural hazards such as frost heave, which increases the material consumption while pile production. Therefore, research will focus on structural optimization of piles based on reasonable material use. The object of the research is a pile with a reverse taper. This pile is highly effective in frost heave conditions. The purpose of this study is to minimize the pile volume by optimizing its geometrical parameters; the pile volume is the objective function. The optimized parameters are the radius of the upper base and the height of the taper. We consider two constraints: the vertical bearing capacity of the pile in thawed soil and stability in frozen soil. We use the method of Lagrange multipliers to solve the problem. The result of the research is the optimal pile configuration with the minimum possible volume under the given constraints

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About the authors

O. V Tretiakova

Perm National Research Polytechnic University, Perm, Russian Federation. Perm State Agro-Technological University named after Academician D.N. Pryanishnikov, Perm, Russian Federation

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