Increasing the Bearing Capacity and Durability of Building Foundations on Frozen Soils

Плотников, А. А.; Merzlyakov, V. P.

doi:10.1007/s11204-021-09708-0

Cited by 6 publications

(3 citation statements)

References 1 publication

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“…Sudy of specifics of influence of geotechnical uncertainties on reliability of vertically loaded pile foundations by means of MCS and FORM, and analysis of sensitivity of reliability to the source of these uncertainties have been done by Kumar Manish [8], Kapustin V.V., Churkin A.A. [23], Plotnikov A.A., Merzlyakov V.P. [26], Li G., Zhang D., Liu C., Liu X. [25].…”

Section: Literary Reviewmentioning

confidence: 99%

Reliability analysis of pile foundations: peculiarities of consideration of uncertainties and partial factors

Ushakova

2023

E3S Web of Conf.

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Pile foundations are used to transmit construction loads deep into the ground, thus ensuring the stability of the structure. In this context, there is no question that the calculation of pile bearing capacity is important in the design of economical and safe geotechnical structures. Typically, the axial bearing capacity of piles can be determined using five approaches. At the same time, under real conditions, the effectiveness of these approaches is limited, firstly, by the restrictions inherent in their computational apparatus and, secondly, by the action of a variety of uncertain and random factors. Meanwhile, in geotechnics the uncertainties are largely unknown or very difficult to measure. In view of the above, the aim of the article is to develop a methodology for analyzing the reliability of a pile foundation taking into account uncertainties and partial factors. The methodological basis of the research is a comprehensive approach, which includes the analysis and synthesis of literary data on the topic of work, analytical and experimental research. In the process of research an algorithm based on the Monte-Carlo method and the evolutionary neural network, which allows in the process of calculating the reliability of piles to take into account such uncertainties as: physical, statistical and modeling uncertainties. The conducted tests showed that the model has a high prediction accuracy. The theoretical value of the obtained results consists in the development of the pile foundation reliability evaluation apparatus due to the use of neural network modeling. In practice, the recommendations formulated in the article can be used as a basis for conducting experiments with pile foundations in various soil sciences conditions.

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Section: Literary Reviewmentioning

confidence: 99%

Reliability analysis of pile foundations: peculiarities of consideration of uncertainties and partial factors

Ushakova

2023

E3S Web of Conf.

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“…Riza describes the successful application of aluminum formwork in the Shenton Way super high rise in Singapore, including the structural design and construction method of the aluminum formwork [9]. e equivalent treatment is to act horizontally in the middle of the column, and the magnitude of the force depends on the situation [10]. Sakuma studied the collapse of construction scaffolding.…”

Section: Related Workmentioning

confidence: 99%

Deformation, Bearing Capacity, and Reliability of Building Formwork System Based on Real-Time Monitoring

Wan²,

Pan

et al. 2022

Mobile Information Systems

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The deformation performance of aluminum alloy formwork under stress is investigated in this research using static tests. The entire model of aluminum alloy formwork under load during construction is investigated using finite element simulation. And then, there’s the project’s actual value. The function is established during the construction period under the limit state of typical use of the wall in terms of reliability. The fluctuation characteristics of the dependability index of the out-of-plane deformation of the concrete wall are explored, and various results are produced, by taking into account the various reinforcement variables of the aluminum formwork. The study discovered that when the number of uses increases during the turnover usage process, the bearing capacity of the building formwork support gradually decreases, and the associated reliability index falls below 2. Adding horizontal and vertical rods above 3.6 m to the single support system, in combination with other elements, is recommended to strengthen its stability. The results reveal that joint semirigidity and wall thickness have a significant influence on the ultimate bearing capacity of construction formwork. The change characteristics of building formwork ultimate bearing capacity in the process of repeated turnover use are studied by increasing the initial defect method to simulate the increase of building formwork turnover times, with the conclusion that the more repeated use times, the lower the building formwork ultimate bearing capacity.

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“…Extensive research has been conducted to investigate the detrimental environmental effects on geo-infrastructure in cold regions, encompassing slope diseases (Zhan et al, 2018;Jiang et al, 2022;Ishikawa et al, 2015 ;, the loss of bearing capacity (Suter et al, 2019;Plotnikov & Merzlyakov, 2021;Filimonov et al, 2022), damage to embankments (Maadani et al, 2021;Tai et al, 2020;Song et al, 2020), deterioration of pavements (Ud Din et al, 2020;Qiao et al, 2020;Zhuo et al, 2022;Dong et al, 2022;Wu et al, 2022), and buckling and breakage of pipelines (He & Jin, 2010;Oswell, 2011;H. Li et al, 2019;X.…”

Section: Introductionmentioning

confidence: 99%

Holistic multiphysics simulation of the climatic responses of cold region pavements

Jiang,

2023

Preprint

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In cold regions, the environment dynamics lead to variations of soil temperature, water content, and deformation, which are characterized by highly coupled physical interplay. The hydraulic and thermal properties of unsaturated soils are highly nonlinear, which is further complicated when subjected to freezing. This paper presents a comprehensive multiphysics coupling model to evaluate these complex processes. The model considers the behaviors of unsaturated frozen soils. It accounts for the influences of meteorological, geothermal, and hydrological factors. The model is validated through two pavement case studies using Long-Term Pavement Performance (LTPP) road section data. The first case analysis is performed for a pavement section in Vermont, and the simulation lasted for 30 days during a non-freezing season on an hourly basis. The results validated the performance of the model considering unsaturated soil behaviors. The second case study is based on a daily analysis of a pavement section in South Dakota over a freezing-thawing cycle over 194 days. The results validated the model in considering the frozen unsaturated soil behaviors. Both case studies demonstrate the performance of this comprehensive model in quantifying the spatial and temporal variations of soil temperature and water content in response to environmental stressors. The capability of the model in accurately predicting the responses of pavement to the meteorological factors unleashes the potential of this model to assess the effects of climate and climate change on cold region pavement, as well as other types of geostructures.

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Increasing the Bearing Capacity and Durability of Building Foundations on Frozen Soils

Cited by 6 publications

References 1 publication

Reliability analysis of pile foundations: peculiarities of consideration of uncertainties and partial factors

Reliability analysis of pile foundations: peculiarities of consideration of uncertainties and partial factors

Deformation, Bearing Capacity, and Reliability of Building Formwork System Based on Real-Time Monitoring

Holistic multiphysics simulation of the climatic responses of cold region pavements

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