Influence of longitudinal and transverse members on geogrid pullout behavior during deformation

Alagiyawanna, A. M. N.; Sugimoto, Masunori; Sato, Shunsuke; Toyota, Hirofumi

doi:10.1016/s0266-1144(01)00020-6

Cited by 46 publications

(15 citation statements)

References 5 publications

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“…These results are in accordance with previous studies, which were carried out using conventional pull-out testing (Bergado and Chai 1994;Alagiyawanna et al 2001), among others. Fig.…”

Section: Measured Geosynthetics Strainssupporting

confidence: 93%

Performance evaluation of railway subballast stabilised with geocell based on pull-out testing

Biabani

Ngo

Indraratna

2016

Geotextiles and Geomembranes

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A large-scale apparatus was designed and built at the University of Wollongong to evaluate the pull-out strength of rail subballast reinforced with geocells. A series of tests were carried out to investigate the pull-out resistance, mobilised tensile strength (ttensile) and passive strength (tpassive) of a subballastgeocell assembly under a given range of overburden pressure (1 kPa < q < 45 kPa). The interface was held in a vertical alignment to better simulate the interaction between subballast and geocell in accordance with routine track practices. The test results show that the geocell reinforcement provides a considerable degree of passive resistance, where the opening area (OA) and lateral pressure (sn) over the geocell strip are found to be influential factors. A three-dimensional finite element simulation was also conducted. The numerical results show that the tensile strength mobilised in the geocell will increase as the geocell stiffness increases, but causes a reduction in tpassive. A parametric study was also developed to investigate the impact of geocell stiffness and friction coefficient on the passive resistance and mobilised tensile strength. These results indicate that the passive resistance and mobilised tensile strength increase with the increase in overburden pressure (q) and friction coefficient (d).

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“…These results are in accordance with previous studies, which were carried out using conventional pull-out testing (Bergado and Chai 1994;Alagiyawanna et al 2001), among others. Fig.…”

Section: Measured Geosynthetics Strainssupporting

confidence: 93%

Performance evaluation of railway subballast stabilised with geocell based on pull-out testing

Biabani

Ngo

Indraratna

2016

Geotextiles and Geomembranes

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“…7 resistance. However, frictional resistance tends to influence pullout resistance rather than bearing resistance (Alagiyawanna et al, 2001). Hence, the sand content in the tire chip-sand mixtures directly affects the pullout resistance because the frictional angle of sand is higher than that of the tire chips.…”

Section: Pullout Test Resultsmentioning

confidence: 99%

Interaction between geogrid reinforcement and tire chip–sand lightweight backfill

Tanchaisawat

Bergado

Voottipruex

et al. 2010

Geotextiles and Geomembranes

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“…resistance of the transverse members (Tran, Meguid, and Chouinard 2013). Alagiyawanna et al (2001) found that removal of 75 % of the transverse ribs reduced the reinforcing effect of the geogrid on the sand movement. Table 2 provides the properties of the biaxial geogrid.…”

Section: Methodsmentioning

confidence: 99%

Stress Distributions and Pullout Responses of Extensible and Inextensible Reinforcement in Soil Using Different Normal Loading Methods

Rahmaninezhad

Han

Kakrasul

et al. 2019

Geotechnical Testing Journal

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In design of reinforced soil structures, pullout capacity of reinforcement in an anchorage zone is an important parameter for stability analysis. This parameter is generally quantified by conducting laboratory or field pullout tests. In the laboratory pullout test, the reinforcement is embedded in the soil mass at a normal stress, which is commonly applied by a pressurized airbag or a hydraulic jack through a rigid plate, and then a horizontal tensile force is applied to the reinforcement. This article reports an experimental study conducted to evaluate the effect of the load application method using an airbag with and without stiff wooden plates on the vertical stress distribution and the pullout capacities and deformations of extensible (geogrid) and inextensible reinforcement (steel strip) in the soil in a large pullout box. This study monitored the distributions of the vertical earth pressures at the top and bottom of the soil mass in the pullout box, and at the level of reinforcement using earth pressure cells. The measured earth pressures show that the airbag with stiff plates resulted in a nonuniform pressure distribution, whereas the tests with an airbag directly on the soil had an approximately uniform pressure distribution. The nonuniform pressure distribution resulting from the airbag with stiff plates reduced the pullout resistance of the reinforcement as compared with that using the same airbag without stiff plates.

show abstract

Influence of longitudinal and transverse members on geogrid pullout behavior during deformation

Cited by 46 publications

References 5 publications

Performance evaluation of railway subballast stabilised with geocell based on pull-out testing

Performance evaluation of railway subballast stabilised with geocell based on pull-out testing

Interaction between geogrid reinforcement and tire chip–sand lightweight backfill

Stress Distributions and Pullout Responses of Extensible and Inextensible Reinforcement in Soil Using Different Normal Loading Methods

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