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http://dx.doi.org/10.12814/jkgss.2017.16.2.097

Fundamental study on the development of Filling materials for Trenchless Emergency Restoration of Ground cavity  

YU, Nam-Jae (Korea Conformity Laboratories)
Choi, Ju-Hyun (School of Civil and Environmental Engineering, Urban Design and Study, Chung-Ang Univ.)
Lee, Kang-Il (Dept. of Civil Engineering, Daejin University)
Publication Information
Journal of the Korean Geosynthetics Society / v.16, no.2, 2017 , pp. 97-107 More about this Journal
Abstract
Recently, there have been a lot of incidents related to ground sinks in urban areas, but restoration work is complicated and inconvenience due to on-site control, and particularly, grouting and soil filling are generally applied as recovery measures, but when the grouting or the soil filling is carried out, material segregation phenomenon occurs in the ground or a lot of restoration amount is often required, depending on the state of sinks and the existence of groundwater under the ground and the soil can be lost due to the flow of the ground water, and thus the purpose of this study is to develop a pouch-type filler applied to a trenchless method for emergency reinforcement of the ground sinks with the aim of quick recovery of the ground sink in urban areas, and as a result, it was confirmed that compression strength and the expansion ratio were different according to the temperature of ground water and the compression strength and the expansion ratio could be controlled by mixing alumina powder.
Keywords
Ground sink; Trenchless emergency restoration; Alumina powder; Hydrophilic polymer;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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