METHOD FOR GROUND CONSOLIDATION Russian patent published in 2008 - IPC E02D3/12 

FIELD: construction, particularly to reinforce ground at building and building structure base.

SUBSTANCE: method for ground consolidation by contouring consolidation zone and by injecting hardening solution through contouring injectors involves immersing working injectors in ground and injecting high-pressure solution to break ground structure; passing tightened steel string through countering injectors; creating vertical slot cavity as contouring injectors are immersed in ground; installing limiter in obtained slot cavity; performing ground zone contouring by injecting hardening solution in said vertical slot cavity under pressure not exceeding structural ground strength, wherein cavity filling degree is determined from pressure increase. If ground characteristics are to be significantly increased the limiter is installed in vertical slot and limiter position is fixed. In this case solution is injected under pressure not exceeding structural ground strength, but resulting in countering cavity wall compaction. The method provides at least 1.5 times (in particular cases 3-4 times) decrease of expensive binding material consumption.

EFFECT: increased efficiency along with decreased operational costs due to decreased consumption of expensive materials to be injected, provision of solution propagation control due to creation of continuous contour shaped as vertical plate of hardened solution and prevention of labor input increase due to solution injection via contouring injectors.

2 cl, 1 dwg