논문실적
| Remedial grouting for embankment dam core sealing - 10 years experiences |
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학술지명 ICOLD 2018 Symposium Hydro Engineering
저자 박동순,임희대
발표일 2018-07-04
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As empirical guidelines for the two dams, permeation grouting of two- or three-rows layout was successful with a grout column spacing of 2m in dam axis direction and 1m in stream direction on the crest. Remedial grouting sequence at least 8m spacing in an interpolation method was accompanied. Main grout material was composed of ordinary Portland cement and micro-cement. Bentonite mix with a mixture less than 5% mass quantity was effective as an additive material. Empirically proven recipe of permeation remedial grouting encompasses the maximum fluid pressure (kPa) given as 2 × 10 (kPa/m) × depth (m) × 0.75. |
