Search for rational contour of back surface of retaining wall

Kalmykov, Oleg; Khalife, Rabie; Grabowski, Adam

doi:10.1063/1.5091885

Cited by 7 publications

(4 citation statements)

References 2 publications

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“…Відомо, що залежність між бічним статичним тиском сипучого та кривизною поверхні стіни, що сприймає цей тиск, може бути записана у вигляді полінома 4го ступеня [12]. Відповідно до розробленої процедури, задається епюра бічного тиску сипучого і шляхом вирішення цього рівняння визначаються кути нахилу дотичної до кривої, що забезпечує задану епюру тиску [13]. У той же час, в роботах [12,13] не надається висновку, яка ж епюра бічного тиску, а отже і конфігурація підпорної стіни вважається раціональною.…”

Section: постановка проблемиunclassified

“…Відповідно до розробленої процедури, задається епюра бічного тиску сипучого і шляхом вирішення цього рівняння визначаються кути нахилу дотичної до кривої, що забезпечує задану епюру тиску [13]. У той же час, в роботах [12,13] не надається висновку, яка ж епюра бічного тиску, а отже і конфігурація підпорної стіни вважається раціональною. Задля вирішення цього питання в справжньому дослідженні застосовується біоенергетичний (ВЕО) метод оптимізації будівельних конструкцій [14].…”

Section: постановка проблемиunclassified

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Parameters Rationalization of the Thin-Walled Anchored Retaining Walls

Kalmykov

Binkevych

Buldakov

2022

MEC

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One of the priority areas of theoretical research in the field of building structures is to reduce their own weight at a given resource - rationalization. There is a certain number of building structures in which the form and nature of the external load are interdependent. The most striking representative are the structures that perceive lateral pressure from bulk material - retaining walls. From the above review of modern scientific research aimed at finding rational parameters of retaining walls, it follows that the authors, as a rule, describe the cantilever retaining wall by a finite number of parameters and the reduction of its own weight or cost of the structure was taken as the target function. In this case, the load on the structure does not change. The idea underlying this work is that the structure of the retaining wall and the soil backfill, which holds it, is considered as a single system. In this system, the configuration of the structure determines the nature and magnitude of lateral pressure distribution. The sequence of actions to solve the problem of searching for a rational configuration of the structure leads to the division of the curved foam wall into a finite number of linear sections. The anchor support is represented in the form of an additional concentrated force applied at the anchor fixing point. In the work the dependences between the attributes of the stress-strain state of the structure and the system of angles of inclination of the sections are constructed. The configuration of the anchor and retaining wall, which will minimize the potential deformation energy of the system, is found within the framework of the BEA method. Using the numerical output data, the validity of the proposed method is demonstrated. The realization of calculations is reduced to the search for the extremum of the objective function of n variables where the potential deformation energy acts as a functionb and the combination of angles of inclination of the system's breakdown sections as variables. The solution of the problem is implemented by the conjugate gradient method. as a result of calculations, an image of the structure is obtained that minimizes the introduced criterion. Keywords: retaining walls, deformation energy, curved surfaces, rationalization.

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Section: постановка проблемиunclassified

Parameters Rationalization of the Thin-Walled Anchored Retaining Walls

Kalmykov

Binkevych

Buldakov

2022

MEC

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“…In the article [7], the application of the Harmony Search algorithm is described for searching the topology of a retaining wall with the minimum cost. Alongside the de-scribed approaches, solutions to the problem of investigating the interaction between the configuration of the retaining wall and the nature of the lateral earth pressure distribution are known [8]. Based on the solved problem, a retaining wall structure with a curvilinear configuration is proposed [9].…”

Section: Introductionmentioning

confidence: 99%

“…Alongside the de-scribed approaches, solutions to the problem of investigating the interaction between the configuration of the retaining wall and the nature of the lateral earth pressure distribution are known [8]. Based on the solved problem, a retaining wall structure with a curvilinear configuration is proposed [9]. Since the proposed structural solution is unconventional, a separate interest lies in evaluating its reliability.…”

Section: Introductionmentioning

confidence: 99%

Determination of the probability of shear resistance of the retaining wall

Babayev,

Kichaieva,

Kalmykov

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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A methodology for determining the probability of failure of a curvilinear retaining wall against shear using the Monte Carlo statistical testing method was developed in this paper. An algorithm and computer program implementing this approach are proposed, as well as an example of curvilinear wall calculation is performed together with reliability indices for three design cases are obtained. By under-standing the values of the probability of failure in a given case according to one of the criteria, it is possible to determine the risk level of the project and, if necessary, to make changes in the design of the retaining wall. The concept of reliability management in the Eurocode is manifested here in the timely correction of the decisions taken, while it is necessary to use the procedure of quantitative assessment of the probability of occurrence of a particular limit state. The qualitative assessment only indicates the boundaries of the area that roughly characterises the consequences of changes in the geotechnical situation.

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