Experimental Study on Characteristics of Penetration into Microcrack Depending on Viscosity

Hwang, Sang Hyun; Yoo, Wan-Kyu; Kim, Chang-yong

doi:10.18178/ijscer.7.3.227-232

Cited by 1 publication

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“…침투 그라우팅은 높은 유동성을 갖는 주입재를 활용하여 지반의 간극에 스며들도록 주입하는 공법으로 수압할렬 및 지표면 융기 방지에 효과적이다 (Idriss and Boulanger, 2008;Bruce, 2012). Park and Lim (2016) (Jeoung et al, 2016;Hwang et al, 2018) (Lenormand and Zarcone, 1989;Jung et al, 2014;Cao et al, 2016) (1)…”

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Characteristics of Biopolymer Guar Gum Solution Injection for Eco-Friendly Ground Reinforcement

Ryou¹,

Jung²

2022

J. Korean Soc. Hazard Mitig

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Recently, research on the use of biopolymers for environmentally friendly soil improvement has been actively conducted. Biopolymer soil treatment has various effects, such as the enhancement of soil strength, reduction of hydraulic conductivity, and enhancement of vegetation. In this study, the flow and injection characteristics of guar gum solutions were analyzed to develop biopolymer-based injection materials. Viscosity measurements and micromodel experiments were conducted to analyze the flow and injection properties. Viscosity measurements indicated that the guar gum solution showed a tendency of shear-thinning, in which the viscosity decreased as the shear rate increased. By applying the Power-law, the consistency index tended to increase as the concentration of aqueous guar gum solution increased. However, no clear trend was observed for the behavior index. As a result of the micromodel experiment, the pore saturation tended to increase as the volumetric flow rate and concentration of the guar gum solution increased. This is because of an increase in the injection pressure and apparent viscosity. When applied to an actual field, the required injection pressure varies depending on the ground conditions. Therefore, the results of this study will be used as fundamental data for determining the concentration of aqueous guar gum solution suitable for ground conditions.

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Section: 서 론unclassified

Characteristics of Biopolymer Guar Gum Solution Injection for Eco-Friendly Ground Reinforcement

Ryou¹,

Jung²

2022

J. Korean Soc. Hazard Mitig

View full text Add to dashboard Cite

show abstract

Experimental Study on Characteristics of Penetration into Microcrack Depending on Viscosity

Cited by 1 publication

References 1 publication

Characteristics of Biopolymer Guar Gum Solution Injection for Eco-Friendly Ground Reinforcement

Characteristics of Biopolymer Guar Gum Solution Injection for Eco-Friendly Ground Reinforcement

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