The Research And Test Of No-cover Consolidation Grout In 27# Dam Segment Of Goupitan Hydropower Station

Non-cover-weighted consolidation grouting construction technique is a lately-appear kind of new craft in these year water grouting. This method is advantageous to expedite the concrete construction speed of the main dam foundation part, justly shorten the construction period, resolving the interference problem between the big dam concrete sprinkles and consolidation grouting.In some Hydropower Station construction examination, non-cover-weighted consolidation grouting construction technique isn't ripeness and has some problem that must be investigated more.In order to generate electricity as soon as possible and create a larger social and economic performance,because the time droped behind,the Goupitan Hydropower Station decide to be in 27 segment of the dam carry on Non-cover-weighted consolidation grouting examination. I enlisted the whole examination course.Mainly here it studys this examination and discusses the possibility of the non-cover-weighted consolidation grouting and the correspond technics and parameter. It includes five aspects:1,analysis of the grouting technics and grouting parameter2,the research of risking problem in Non-cover-weighted consolidation grouting examination3,water pressure test data analysis4,grouting construction data analysis and construction effects analysis5,in the front and back of the grouting construction physics exploration examination result contrast analysisThrough these analysis and comparison, the non-cover-weighted consolidation grouting construction technique is viable in dam foundation of the Goupitan Hydropower Station.After pressing the water and the physics exploration examination, all various index satisfy the request of design. So this experiment totally is successful and the grouting effect is obvious.Because the Non-cover-weighted consolidation grouting construction technique can resolve the interference problem between the big dam concrete sprinkles and consolidation grouting,it has some certern applying value in water construction.For the non-cover-weighted consolidation grouting construction in these rejiones that are similar to the geologic of the Goupitan Hydropower Station this examination has the certern guidance meaning.