Screw piles as foundations of supports and towers of transmission lines

Trofimenkov, Yu. G.; Mariupol'skii, L. G.

doi:10.1007/bf01710374

Cited by 7 publications

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“…According to Trofimenkov and Mariupolskii (1964), the value of the critical helix depth (Hcr) for the characterization of shallow and deep anchor behaviour is around 4-5 times the helix diameter (D). Healy (1971) found values of the critical depth equal to 5D.…”

Section: Individual Bearing Method: Helix Bearing and Shaft Resistancesmentioning

confidence: 99%

“…reported a critical embedment ratio value of 5D for helical anchors in sand with relative density (Dr) between 44 and 90%. Trofimenkov and Mariupolskii (1964) and Vesic (1971) argue that the critical embedment ratio depends on the soil shear strength. Figure 7 presents the values of critical helix depth suggested by Das (1990).…”

Section: Individual Bearing Method: Helix Bearing and Shaft Resistancesmentioning

confidence: 99%

“…Although these experiments have been carried out on multi-helix anchors, the mechanism of shallow anchor failure is clearly illustrated in the zone above the top helix in Figure 6a. In this situation, the anchor's capacity depends considerably on the depth of the top helix and the load is transmitted to the ground exclusively by the helices (Trofimenkov & Mariupolskii, 1964;Clemence et al, 1994). The shallow anchor behaviour occurs until a certain critical helix embedment depth.…”

Section: Helical Anchor Uplift Capacitymentioning

confidence: 99%

“…University of São Paulo and LUNAM University the helix depth, and the load is transmitted to the soil by the helix and shaft (Trofimenkov & Mariupolskii, 1964;Clemence et al, 1994;Tsuha & Aoki, 2010). Theoretical methods based on the cylindrical shear model, which assumes that a cylindrical failure surface is mobilized between the top and the bottom helices ( Figure 6), are not discussed in this document, since the current study is focused on the behaviour of single helix anchors.…”

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confidence: 99%

“…Variation of critical depth with angle of friction and helical plate diameter, after Hanna et al (2007). Trofimenkov and Mariupolskii (1964) were the first authors to present a formula (Eq. 3) expressing the uplift helix bearing capacity of a helical anchor as a function of dimensionless capacity factors (similar to Terzaghi's bearing capacity equation).…”

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Behaviour of helical anchors subjected to cyclic loadings

Schiavon¹

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Section: Individual Bearing Method: Helix Bearing and Shaft Resistancesmentioning

confidence: 99%

Section: Individual Bearing Method: Helix Bearing and Shaft Resistancesmentioning

confidence: 99%

Section: Helical Anchor Uplift Capacitymentioning

confidence: 99%

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Behaviour of helical anchors subjected to cyclic loadings

Schiavon¹

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In-Situ Customization of the Helical Pile Design Procedure Using Plaxis 2D

Alekseev

Bezvolev

2020

Soil Mech Found Eng

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Application of pile foundations in structurally unstable soils

et al. 2019

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The active development of the Asia-Pacific region is often accompanied by geotechnical problems that require a rational solution. The article presents the results of a laboratory experiment that simulates the process of slurried pile construction in sandy frozen soils. The authors present the dependence of changes in the temperature of the soil and cement-sand mortar in time, defined the maximum radius of thawing and the total duration of the process of thawing and freezing back to the natural state, given the recommendations for the design of slurried piles taking into account thermal interaction with permafrost soils. The article presents a laboratory study of the interaction of auger cast piles with frozen soil. The results of laboratory studies of the strength of cement mortars of different compositions, hardened at a negative temperature. Recommendations on the choice of the solution composition for the installation of grout-injected piles in frozen soil are given. The article presents the state of the question of designing multi-blade screw piles, reflects the relevance of the development of methods of calculation and updating the regulatory framework. The authors carried out calculations of the bearing capacity of screw piles on various calculation schemes, the results of which are compared with field tests. As a result of comparison recommendations on the choice of the reliable settlement scheme are given. The authors believe that the solution of the problems identified in the article related to the use of advanced types of pile foundations in difficult geotechnical conditions will significantly improve the reliability of structures, reduce construction time and reduce economic costs.

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Screw piles as foundations of supports and towers of transmission lines

Cited by 7 publications

References 0 publications

Behaviour of helical anchors subjected to cyclic loadings

Behaviour of helical anchors subjected to cyclic loadings

In-Situ Customization of the Helical Pile Design Procedure Using Plaxis 2D

Application of pile foundations in structurally unstable soils

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