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http://dx.doi.org/10.7843/kgs.2006.22.11.13

The Effect of Remedial Works to Control the Leakage Problem in Earth Fill Dam by Compaction Grouting  

Chun, Byung-Sik (Dept. of Civil Engrg., Hanyang Univ.)
Lee, Yong-Jae (Dept. of Civil Engrg., Hanyang Univ.)
Chung, Ha-Ik (Geotechnical Engrg. Dept., Korea Institute of Construction Technology)
Publication Information
Journal of the Korean Geotechnical Society / v.22, no.11, 2006 , pp. 13-23 More about this Journal
Abstract
The sinkhole and leakage in dam core were detected at one of earth fill dams in Korea. The damage areas in the core of the dam were repaired by compaction grouting method. This study is to evaluate compaction grouting activity by in-situ and laboratory experiments before, during and after the remedial work. The intensive site investigation and geophysical survey were conducted during and after the compaction grouting work. The compaction grouting work was carried out for the damaged dam core between June 16 and August 24, 2000. The leakage reduction generally occurred in the core of the dam after the remedial work. The use of compaction grouting was considered the proper countermeasures for repairing the damaged dam. It shows that the loose or voided zones have been properly filled and the leakage has been reduced by about 96% of that before the treatment of the remedial work performed at dam core by compaction grouting.
Keywords
Compaction grouting; Dam core; Earth fill dam; Injection; Leakage; Repair;
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