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http://dx.doi.org/10.7843/kgs.2017.33.12.115

A Study on the Waterproofing Performance of Waterproofing Methods for PHC-W Earth Retaining Wall Based on Pressure Chamber Test  

Choi, Yongkyu (School of Civil, Environmental & Urban Engrg., Kyungsung Univ.)
Johannes, Jeanette Odelia (Depart. of Civil Engrg., Kyungsung Univ)
Yun, Daehee (Depart. of Civil Engrg., Kyungsung Univ)
Kim, Chae min (Depart. of Civil & Environment Engrg., Kyungsung Univ.)
Jeon, Byeong Han (Geotechnical Research Institute, Korean Geotechnical Society)
Publication Information
Journal of the Korean Geotechnical Society / v.33, no.12, 2017 , pp. 115-125 More about this Journal
Abstract
PHC-W earth retaining wall could be constructed continuously. Various retaining wall methods such as C.I.P. etc. method require separate waterproof method. However, the PHC-W retaining wall method prevents leakage of groundwater by inserting a waterproofing material at connection part between 2 PHC piles. In this study, the experimental study on 3 waterproofing method for PHC-W retaining wall was conducted at the model pressure chamber. In the method using textile with 1-liquid type and 2-liquid type urethane, rapid leak occurred at the pressure of 120 kPa and 140 kPa or more. In the method of textile with grouting, rapid leak occurred at the pressure of 120 kPa or more, however, in this method, the rapid leakage happened at the top part and the bottom part reinforced with urethane.
Keywords
The PHC-W retaining wall method; Waterproofing methods; The model pressure chamber; 1-liquid type uretnane waterproofing method; 2-liquid type uretnane waterproofing method; Grouting type waterproofing method; The rapid leakage;
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