Reinforced Sandy Piles for Low-rise Buildings

Maltseva, T. V.; Alexander, Nabokov; Chernykh, Anastasia

doi:10.1016/j.proeng.2015.08.156

Cited by 20 publications

(4 citation statements)

References 1 publication

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“…In fig. 3 the graphs of the average mechanical characteristics of a reinforced sand pile installed in the soil E (t) are shown, and the image of it -E * (p) [13]. At the second stage, we will shift from solving the problem of the theory of elasticity to solving the (4)…”

Section: Methodsmentioning

confidence: 99%

Modeling a Weak Foundation in Interaction with Reinforced Sand Piles under a Low-Rise Building

Maltseva

2022

KEM

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One of the ways to increase the bearing capacity and stability of a water-saturated base by introducing a sand pile vertically reinforced along the contour with geosynthetic material (geogrid SSP 30 / 30-2.5) is experimentally substantiated. This constructive solution is used in low-rise construction. For the theoretical substantiation of the suggested method, it is proposed to model the interaction of a weak foundation and a reinforced sand pile on the basis of the linear theory of viscoelasticity. Calculation of vertical displacements of the pile and comparison with the results of in situ experiments is presented.

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Section: Methodsmentioning

confidence: 99%

Modeling a Weak Foundation in Interaction with Reinforced Sand Piles under a Low-Rise Building

Maltseva

2022

KEM

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“…Usmanov's research employed layers of compaction to strengthen weak soils through the application of high-strength geosynthetic materials (HSGM) [45]. A substitute for conventional sand or gravel-type reinforcing piles involves the use of geosynthetic mats encompassing bore pile shapes Shenkman and Maltseva introduced a settlement calculation method based on the reinforcement procedure [38,41]. Waruwu conducted a study on the underpinnings of natural foundations.…”

Section: Introductionmentioning

confidence: 99%

Investigating Load-Settlement Characteristics of Square Model Footings on Sand Beds Enhanced with Textured Vertical Pultruded Fiberglass Reinforced Helical Piles

Zargar,

Shah

2024

Preprint

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This article introduces a novel ground enhancement method utilizing textured vertically oriented fiberglass pultruded pipes. These pipes feature a widened bottom toe in a helical shape. The research primarily explores textured prefabricated helical piles, varying in length and cross-sectional area, designed to act as reinforcing bearing elements in sandy soil. The ongoing study includes performing experimental investigations on a laboratory model square footing positioned on sand, with textured PFRH piles installed beneath it. A parametric investigation was carried out to examine the influence of textured PFRH pile slenderness ratio, different states of sand beds, and varying helical plate diameters through laboratory model plate load tests. The findings indicated that placing textured PFRH piles beneath the footing substantially enhanced the settlement characteristics and load-carrying capacity of the structure. There was a noticeable increase in load-carrying capacity with an increase in the slenderness ratio of textured PFRH piles, although the improvement became insignificant beyond a slenderness ratio of 20. In the absence of reinforcement, denser sand exhibited superior bearing capacity for footings. However, in the case of reinforced footings, textured PFRH piles demonstrated the most substantial improvement in medium-density sand. Furthermore, augmenting the helical plate diameter led to an enhanced load-carrying capacity. The study employed multivariate linear regression to establish a robust correlation between experimental and predicted bearing capacity ratios, affirming the reliability of the findings. In summary, this research underscores the significant potential of utilizing textured prefabricated helical piles in fortifying soil foundations, offering valuable insights for optimizing the design and performance of such systems across diverse soil conditions.

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“…One of the particular options of sand or gravel type reinforcing piles application is geosynthetic mats bounding the shape of bored piles. Shenkman [ 17 ] and Maltseva [ 18 ] proposed a settlement calculation method after the reinforcement process. Natural foundation underpinnings were studied by Waruwu [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

Vertical Fiberglass Micropiles as Soil-Reinforcing Elements

et al. 2022

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This article is dedicated to developing a ground improvement technique using vertically oriented reinforcement elements prefabricated utilizing fiberglass pultruded pipe and helical shape wideners at the bottom toe. Structures of the prefabricated helical micropiles varied by the length and cross-section area introduced into the soil massive as reinforcing bearing elements. The effect of the reinforcements geometry variation was investigated through a reinforcement factor (µ), based on which a calculation method for measuring settlement of reinforced soil has been previously developed Full-scale field plate load tests were performed before and after reinforcing the soil to investigate the changes in the soil stiffness after the reinforcement process. Comparative analysis between the reinforced and reference soft sandy soil indicates an average increase in the deformation properties of the fiber reinforced soils by 8%, 30%, 63% at the applied pressures of 100, 300, and 550 kPa, respectively. The influence of the fiber reinforced polymers (FRP) geometrical properties on the final composite settlement was determined. A comparative analysis of the calculated and the actual plate load tests results reveals that the previously proposed settlement calculation method is adequate for further development.

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Reinforced Sandy Piles for Low-rise Buildings

Cited by 20 publications

References 1 publication

Modeling a Weak Foundation in Interaction with Reinforced Sand Piles under a Low-Rise Building

Modeling a Weak Foundation in Interaction with Reinforced Sand Piles under a Low-Rise Building

Investigating Load-Settlement Characteristics of Square Model Footings on Sand Beds Enhanced with Textured Vertical Pultruded Fiberglass Reinforced Helical Piles

Vertical Fiberglass Micropiles as Soil-Reinforcing Elements

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