WANG Bin, ZANG Peng, LI Qiaobin, et al. Research and application of the construction technology of underwater inspection hole for dam curtain grouting[J]. 2026, 0(2).
WANG Bin, ZANG Peng, LI Qiaobin, et al. Research and application of the construction technology of underwater inspection hole for dam curtain grouting[J]. 2026, 0(2).DOI:
In order to recheck the impermeability of abutments and dam foundation of Donuo hydropow_ er station after the earthquake
it is necessary to check the quality of dam grouting curtain under the re_ servior impoundment condition. The drilling depth of the underwater inspection hole is 40~69 m
and the drilling is difficult. By comprehensively using the floating boat platform
diving technology
underwa_ ter positioning and drilling technology
the quality inspection of dam curtain under the condition of reser_ vior impoundment has been successfully completed
which offers important reference for similar projects.