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Geomechanics and Engineering Volume 28, Number 1, January10 2022 , pages 1-10 DOI: https://doi.org/10.12989/gae.2021.28.1.001 |
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Reinforcement effect of surface stabilizer using surface curtain walls on aging reservoirs |
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Sang-Huwon Song, Dae-Sung Cho and Se-Gwan Seo
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| Abstract | ||
| In Korea, accidents related to the collapse of deteriorated aging reservoirs occur every year. The grouting method is generally applied to reinforce an aging reservoir. However, when using this method, different reinforcing effects appear depending on the ground conditions. Thus, new construction methods and materials capable of providing consistent reinforcing effects are required. In this study, the direct shear test (DST), model test, and simulation analysis were performed to evaluate the impact of surface stabilizers, generally used to reinforce roads, rivers, and slopes of roads, applied using surface curtain walls on aging reservoirs. The DST results indicate that when the surface stabilizer was mixed with in-situ soil, the increase in cohesion was the highest at a mixing ratio of 9%. No changes in the friction angle were evident; therefore, 9% was determined to be the optimal mixing ratio. In addition, the model test and simulation analysis showed that when 9% of the surface stabilizer was mixed and applied to the aging reservoir, the seepage quantity of water and the saturated area were reduced by approximately 42% and 73%, respectively. Moreover, the comprehensive analysis of results showed that the grouting method could be completely replaced by surface stabilizers applied through surface curtain walls because the technique could secure stability by decreasing the seepage in the aging reservoir. | ||
| Key Words | ||
| aging reservoir reinforcement; reinforcement effect; simulation analysis; surface curtain walls; surface stabilizer | ||
| Address | ||
| Sang-Huwon Song: Department of Architecture, Vision College of Jeonju 235 Cheonjam-ro, Wansan-gu, Jeonju-si 55069, Republic of Korea Dae-Sung Cho and Se-Gwan Seo: Technical Institute, Zian Company Ltd. 443 Samnye-ro, Samnye-eup, Wanju-gun 55338, Republic of Korea | ||