Experimental study of the performance of geosynthetics-reinforced soil walls under differential settlements

Lu, Liantao; Ma, Shuwen; Wang, Zongjian; Zhang, Yi

doi:10.1016/j.geotexmem.2020.09.007

Cited by 18 publications

(3 citation statements)

References 24 publications

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“…Ecological aspects have to include development of anti-landslides measures and in some cases it has priority factor. Eco friendly tested materials have to be used [4,5] and nowadays it is necessary requirement.…”

Section: Active Prevention Measures Against Landslidesmentioning

confidence: 99%

On Mitigation of Damages on Landslide Prone Regions of Uzbekistan

Abirov,

Miralimov

2023

Advances in Transdisciplinary Engineering

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Inability to guarantee the reliable protection to society lead to risk based approach in provision of protection of infrastructure and human beings. According to the Kyoto Protocol of the UN, one of the priorities for mitigating geological hazards is risk’s management, which includes the development of a set of measures that minimizes the possible damage resulting from the emergence of natural disasters. Successful and competent implementation of the whole range of measures to protect against landslide hazard is an important technical, economic and social aspect of the construction and operation of infrastructure facilities. There are informations about ongoing measures to protect the population, territory and infrastructure due hazards associated with landslides and their consequences is provided in this paper. The whole complex of measures aimed to the solution the engineering tasks of anti-landslide protection are turned into the recognition and assessment of threats, stabilization and retention of the landslide massif.

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Section: Active Prevention Measures Against Landslidesmentioning

confidence: 99%

On Mitigation of Damages on Landslide Prone Regions of Uzbekistan

Abirov,

Miralimov

2023

Advances in Transdisciplinary Engineering

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“…Therefore, the rehabilitation, widening, and addition of new carriageways in old roads are important to maintain the level of service (LOS). In road widening projects, most deformations in the embankments develop due to differential settlement between the old and widened portions [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22]. The impact of traffic load on the widened portion of the road is more dominant than the volume [23,24].…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Differential Settlement in Road Due to Widening Considering Different Reinforcement Techniques

Abbasi,

Weng,

Iqbal

2024

Applied Sciences

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Embankment and pavement widening of an existing road is a viable option to cope with increased traffic volume. One of the common challenges in road expansion is the occurrence of differential settlement between the old and the new portions. This article pertains to the field case study of the National Highway-120, where pavement distresses developed in the weak sections of the highway following the operation of traffic within a few months. Field monitoring and geotechnical tests, including the requisite in situ as well as laboratory tests, were conducted on soil specimens from the study area, followed by the performance of a numerical analysis using the two-dimensional finite element software Abaqus CAE 2021 to investigate the weak section of the road. Different techniques such as geogrid reinforcement, installation of cement–fly-ash–gravel (CFG) piles, and lightweight foamed concrete (LWFC) embankment fill were used to analyze the reduction in differential settlement between the old and the widened portions. Among the applied reinforcement techniques, the use of LWFC as embankment fill in the widened portion was determined to be most effective in minimizing the differential settlement in the weak section of the highway.

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“…This technology can effectively improve the shear strength of soil and enhance the stability of foundation and related structures by adding geosynthetics into foundation filler to form reinforced soil composite materials [15]. Reinforced soil technology has been widely used in many geotechnical engineering projects for its advantages of convenient construction and effective improvement of soil strength and structural stability [16][17][18][19][20][21]. Reinforced-soil interface parameters are the key technical indicators of reinforced soil engineering structural design, and the interaction characteristics of reinforced-soil interface are the core issues in the study of reinforcement mechanism [22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Interface Shear Behavior of Geogrid-Reinforced Calcareous Sand Under Large-Scale Monotonic Direct Shear

Ren

et al. 2022

Int. J. of Geosynth. and Ground Eng.

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A study on the interface monotonic shear behavior of calcareous sands reinforced with geogrid was reported. Large-scale monotonic direct shear tests were carried out on calcareous sand samples with and without geogrid. The interface shear behavior was investigated by considering the effects of normal stresses ranging from 25 to 100 kPa and relative densities ranging from 50 to 90%. The results demonstrate that the shear strength of geogrid-reinforced calcareous sand (GRCS) and unreinforced calcareous sand accords with the Mohr-Coulomb strength theory. The shear stress-shear displacement curve presents significant strain-softening behavior, and has experienced elasto-plastic stage, softening stage, residual stage. When the relative density is 50%, 70%, and 90%, the interface peak cohesion of GRCS is increased by 1.6 times, 1.9 times, and 1.4 times compared with the unreinforced calcareous sand, and the interface peak internal friction angle is increased by 1.2 times, 1.1 times, and 1.0 times, respectively. Furthermore, under different normal stresses and relative densities, the interface friction coefficient and the reinforcement effect coefficient are both greater than 1.0, indicating that the geogrid reinforcement can improve the shear strength of calcareous sand.

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Experimental study of the performance of geosynthetics-reinforced soil walls under differential settlements

Cited by 18 publications

References 24 publications

On Mitigation of Damages on Landslide Prone Regions of Uzbekistan

On Mitigation of Damages on Landslide Prone Regions of Uzbekistan

Numerical Analysis of Differential Settlement in Road Due to Widening Considering Different Reinforcement Techniques

Interface Shear Behavior of Geogrid-Reinforced Calcareous Sand Under Large-Scale Monotonic Direct Shear

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