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In order to ensure the construction progress of the dam pouring of the Sanhekou Water Control Project and the quality of the dam foundation consolidation grouting, it is necessary to carry out the dam foundation non-cover weight consolidation grouting test. Based on the study of the geological conditions of the test area, the consolidation grouting test scheme was worked out according to the geological conditions and the water permeability before and after grouting, the unit ash injection amount and uplift deformation were analyzed and discussed. The results show that the average water permeability decline rates of the three test areas on the left and right bank dam foundations and the right bank fault fissure zone arc 96.7%•, 81 .8%· and 73.4%· respectively and the water permeability of each pore pressure shows a decreasing trend; the average of the three test areas of the decline rates of unit ash injection volume arc 64. 7%, 12.6%, and 66.4%, respectively, and the unit ash injection volume of each hole shows decreasing trend; the pressure water permeability of each hole section of the 3 test areas is less than 3.0 Lu; each hole section has no lifting deformation occurred during the construction process. These results show that the consolidation grouting has a good effect. [ABSTRACT FROM AUTHOR]