Pullout resistance of bearing reinforcement embedded in marginal lateritic soil at molding water contents

Sukmak, Kampanart; Sukmak, Patimapon; Horpibulsuk, Suksun; Chinkulkijniwat, Avirut; Arulrajah, Arul; Shen, Shui‐Long

doi:10.1016/j.geotexmem.2015.07.016

Cited by 16 publications

(4 citation statements)

References 30 publications

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“…As the OP increased, the pullout displacement corresponding to the peak shear stress increased gradually. is result was consistent with the test results of Sukmak et al [25] and Yin et al [26].…”

Section: Influence Of Vibration On the Interface Strengthsupporting

confidence: 93%

The Influence of Pile‐Driving Vibration on the Soil Nailing Support of a Silty Soil Foundation Pit

Guo

2021

Advances in Civil Engineering

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The ground vibration induced by pile driving affects the safety of the adjacent foundation pit. In this paper, the influence of pile-driving vibration on the soil strength and the nail-soil interface strength was studied, and the variation in the axial force and displacement of the soil nail under vibration was analyzed. The paper studied the effects under different vibration parameters on the soil strength and the nail-soil interface strength by using a vibration exciter and a nail pull-out model box. The results showed that the stronger the excitation force was and the higher the frequency was, the greater the attenuation of the soil strength and nail-soil interface strength was. On the contrary, the change of the internal friction angle of the soil was not obvious under the vibration. The nail-soil interface strength recovered when the vibration terminated. Decreases in c and τp led to an increase in the working length of the soil nail, a redistribution of the axial force, and an augmentation in the soil nail displacement.

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Section: Influence Of Vibration On the Interface Strengthsupporting

confidence: 93%

The Influence of Pile‐Driving Vibration on the Soil Nailing Support of a Silty Soil Foundation Pit

Guo

2021

Advances in Civil Engineering

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“…The R inter might decrease to 0.3 for very high transverse member interference, which is equal to that of strip reinforcement . The S 2 /B values for different F can be found in Sukmak et al (2015) and Sukmak et al (2016). The maximum horizontal displacement rapidly decreased with an increase of the soil-structure interaction Figure 16.…”

Section: Parametric Study On Horizontal Wall Displacementmentioning

confidence: 93%

“…To investigate the use of fine-grained soil as a backfill material, Sukmak et al (2015) and Sukmak et al (2016) investigated the pullout mechanisms of the bearing reinforcements embedded in cohesive-frictional soils at various fine and water contents. The bearing pullout mechanism was found to be dominated by the fine content and the failure approached punching shear when the fine content was increased.…”

Section: Introductionmentioning

confidence: 99%

Numerical parametric study on behavior of bearing reinforcement earth walls with different backfill material properties

Sukmak

Han

Sukmak

et al. 2016

Geosynthetics International

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This paper presents a numerical parametric study on behavior of bearing reinforcement earth (BRE) walls with different backfill properties using the finite-element method software PLAXIS 2D. The primary objective of this study was to improve the understanding of bearing stress, settlement, lateral earth pressure, and horizontal wall movement of BRE walls with different backfill materials. The second objective of this study was to evaluate the effects of various soil-structure interactions, foundations, and stiffness of reinforcements on horizontal wall deformations. The backfill materials consisted of four types of soil, which were mixtures of silty clay and sand at different fine contents of 2, 20, 40, and 80% by dry weight. The model parameters for the numerical simulation were obtained from the conventional laboratory tests and back-calculated from the laboratory pullout tests of the bearing reinforcement. The geotextile elements were used to model the bearing reinforcements by converting the contribution of friction and bearing resistances to the equivalent friction resistance, which was represented by the soil-bearing reinforcement interaction ratio, R inter . The values of R inter decreased following a polynomial function as an increase of fine content in the ranges of 0.65-0.38 and 0.75-0.40 for the numbers of transverse members, n = 2 and 3, respectively. The simulated bearing stress in the reinforced zone decreased from the front to the back of the wall because the BRE wall behaved as a rigid body built on the relatively firm foundation retaining the unreinforced backfill. The foundation settlement decreased from the facing of the wall to the unreinforced zone for all backfill properties due to the slight rotation of the wall. The relationship between the maximum horizontal wall movement and the fine content can be expressed by a polynomial function. The maximum horizontal wall movement significantly increased as the fine content increased. The excessive movement was realized when the fine content was greater than 45%. The increase of the fine content moved the location of the maximum wall movement higher up from the mid to the top of the wall. A numerical parametric study was conducted to investigate the soil-structure interaction, foundation, and stiffness of reinforcement. These parameters affected the horizontal wall deformation, which is especially important for serviceability of BRE walls. The knowledge gained from this study provides a preliminary guideline in predicting the behavior of BRE walls and may be used to investigate other BRE walls with different wall heights and features of bearing reinforcements.

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“…Previous studies have shown that the micro-structural bonding caused by an accumulation of sesquioxides (iron and aluminum oxides) between soil particles may induce relevant changes in geomechanical responses relative to fine-grained soils found in temperate regions [30,32,33], enhancing the geomechanical responses of lateritic soil subgrades in natural conditions or after soil stabilization [34][35][36][37][38]. However, concerns related to fine-grained soil compressibility and reduced interface resistance have inhibited further applications as fills in MSE walls [39][40][41], which could be partially addressed with studies that consider the particularities of tropical soils.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Construction and Demolition Waste and Other Alternative Fills for Strip-Reinforced Soil Walls

et al. 2023

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This article assesses the pullout performance of ribbed metallic strips embedded in fill soils that do not conform to conventional design criteria for mechanically stabilized earth (MSE) walls. These alternative fill soils include gravelly and sandy recycled aggregates from construction and demolition waste, artificial and natural sands, and fine-grained lateritic soil. The research included soil characterization tests and large-scale pullout tests, conducted as part of this study. The results showed that the reinforcement pullout behavior was similar for recycled, artificial, and natural sands, indicating that soil particle size played a crucial role in mobilizing the interface pullout resistance. However, in the case of recycled sand, stress concentration at the reinforcement level led to particle crushing during pullout conditions, causing this material to exhibit less efficient performance compared to other sands. The fine-grained lateritic soil demonstrated inferior behavior compared to sandy soils, despite the interparticle bonding provided by the sesquioxide coating characteristic of intensely weathered tropical soils. Finally, an analytical prediction tool based on experimental results was developed, providing an alternative method to make conjectures about the performance of different soils during the pre-design stages, particularly based on particle size attributes.

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Pullout resistance of bearing reinforcement embedded in marginal lateritic soil at molding water contents

Cited by 16 publications

References 30 publications

The Influence of Pile‐Driving Vibration on the Soil Nailing Support of a Silty Soil Foundation Pit

The Influence of Pile‐Driving Vibration on the Soil Nailing Support of a Silty Soil Foundation Pit

Numerical parametric study on behavior of bearing reinforcement earth walls with different backfill material properties

Evaluation of Construction and Demolition Waste and Other Alternative Fills for Strip-Reinforced Soil Walls

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