Foundation strengthening treatment method

The present invention discloses a method of strengthening foundation treatment. Including drilling, flushing, refilling, and the high-pressure supplemental grouting quality checking step comprises drilling a main bore flushing and / or secondary flushing hole drilling, including flushing the flushing and filling, grouting under high pressure supplemental predetermined condition. The invention can effectively solve the problem due to the reinforcement can not be part of the excavation geological defects, solve the seepage treatment works, or even replace excavation, related engineering and technical difficulty to solve the problem in a similar complex projects and shorten the construction period, improve project quality , reduce engineering costs, saving construction hydropower investment, protect the safety of the construction and operation of power plants, there are important practical significance to support projects, will also provide a reference for similar projects and accumulate data and related engineering, construction of hydropower development in western China It has broad application prospects.