Evaluation of effect of basal geotextile reinforcement under embankment loading on soft marine deposits

Zhang, Ning; Shen, Shui‐Long; Wu, Huai-Na; Chai, J.C.; Yin, Zhen‐Yu

doi:10.1016/j.geotexmem.2015.05.005

Cited by 95 publications

(13 citation statements)

References 32 publications

(28 reference statements)

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“…The largest strain of reinforcement and nearby soil embankment without columns reported in Zhang et al (2015) was 7.7% and 7.1% respectively, giving the strain difference of 0.6%, less than the limit compatible strain of 5% selected. In comparison, the largest strain in reinforcement and nearby soil in this paper was 6% and 10%, respectively, giving strain difference of 4%, less than the aforementioned 5% limit.…”

Section: Effect On Long-term Horizontal Toe Movementmentioning

confidence: 80%

Long-term reinforcement strains for column supported embankments with viscous reinforcement by FEM

Liu

Rowe

et al. 2017

Geotextiles and Geomembranes

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Section: Effect On Long-term Horizontal Toe Movementmentioning

confidence: 80%

Long-term reinforcement strains for column supported embankments with viscous reinforcement by FEM

Liu

Rowe

et al. 2017

Geotextiles and Geomembranes

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“…It is evident that the diffusion coefficient of gas decreased with the increase of saturation degree. Environmental factors such as straining and wet-dry cycles can induce strain cracks and desiccation cracks in bentonite within GCLs, which provide a preferential flow path, thus accelerating gas permeation through the GCL [27,94].…”

Section: Gas Migrationmentioning

confidence: 99%

“…[12][13][14][15][16][17][18][19][20][21]. Over the past three decades, extensive studies have been conducted on the physical and mechanical properties of GCL and/or bentonite-based barriers in geoenvironmental applications [22][23][24][25][26][27][28]. Generally, the properties of GCLs have been investigated according to the following aspects: (i) hydraulic conductivity and chemical compatibility; (ii) self-healing capacity; (iii) diffusion; (iv) gas migration; and (v) mechanical behaviours, e.g., creep behavior [29].…”

Section: Introductionmentioning

confidence: 99%

State-Of-The-Art Review of Geosynthetic Clay Liners

Kong

Chai

et al. 2017

Sustainability

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An important component of modern landfills is the liner system for the prevention of leachate contamination of surrounding ground. Among landfill liner systems, geosynthetic clay liner (GCL) has gained widespread popularity across the world because of its lower hydraulic conductivity as well as its ability to self-heal local damage, which is almost unavoidable in the field. Over the past few decades, numerous studies have been conducted to examine the performance of GCLs, particularly in regard to hydraulic conductivity, chemical compatibility, water-swelling, self-healing capacity, diffusion characteristics, gas migration, and mechanical behavior. In this paper, a brief introduction on modern GCL products is firstly given. Subsequently, the main findings of previous publications on the critical properties influencing the long-term performance of GCLs are summarized in a comprehensive manner. Finally, further research perspectives on polymer-treated GCLs are presented. This paper provides general insights that help readers gain a state-of-the-art overview of GCLs and trends for future development.

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“…Additionally, in the hilly region, the bedrock fissure water widely distributed across an area of 743.3 km 2 usually has a very high piezometric level [52][53][54][55][56][57]. It is worth noting that the well-developed river network combined with the high precipitation provides abundant water resources that may worsen the geological conditions during shield tunneling [58][59][60][61][62][63][64][65][66].…”

Section: Hydrogeology and Engineering Geology Of Guangzhoumentioning

confidence: 99%

Fractal Prediction of Grouting Volume for Treating Karst Caverns along a Shield Tunneling Alignment

et al. 2017

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Karst geology is common in China, and buried karst formations are widely distributed in Guangdong province. In the process of shield tunneling, the abundant water resources present in karst caverns could lead to the potential for high water ingress, and a subsequent in situ stress change-induced stratum collapse. The development and distribution of karst caverns should therefore be identified and investigated prior to shield tunnel construction. Grouting is an efficient measure to stabilize karst caverns. The total volume of karst caverns along the shield tunneling alignment, and its relationship with the required volume of grouts, should be evaluated in the preliminary design phase. Conventionally, the total volume of karst caverns is empirically estimated based on limited geological drilling hole data; however, accurate results are rarely obtained. This study investigates the hydrogeology and engineering geology of Guangzhou, the capital of Guangdong province, and determines the fractal characteristics of the karst caverns along the tunnel section of Guangzhou metro line no. 9. The karst grouting coefficients (V R ) were found to vary from 0.11 in the case of inadequate drilling holes to 1.1 in the case where adequate drilling holes are provided. A grouting design guideline was furthermore developed in this study for future projects in karst areas.

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Evaluation of effect of basal geotextile reinforcement under embankment loading on soft marine deposits

Cited by 95 publications

References 32 publications

Long-term reinforcement strains for column supported embankments with viscous reinforcement by FEM

Long-term reinforcement strains for column supported embankments with viscous reinforcement by FEM

State-Of-The-Art Review of Geosynthetic Clay Liners

Fractal Prediction of Grouting Volume for Treating Karst Caverns along a Shield Tunneling Alignment

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