Application of tri-tube high-pressure circumrotating ejection technology in digging deep foundation pit;

The application of three hose high pressure swing spray in the vertical cut-off wall of the reconstruction of jinji sluice dam of Quanzhou

According to the features of underground karst and collapsible soil holes, the triple-pipe high pressure jet grouting and double-mortar grouting methods are adopted to consolidate the foundation of the site, so the hidden danger of safety has been eliminated.

As the waterproof technology with high work efficiency,threefold high-pressure jet grouting plays a vital role in the water-proof and seepage-proff project of deep foundation pits.

Application of high pressure swing grouting in cofferdam impervious project;

In this paper,taking canal head pivotal project of Tianjin YinLuanRuJin as the background,the successful application of high pressure swing grouting impermeable wall technics in sand soil layer is introduced and handling methods for special cases are briefly described.

By analyzing leakage causes and the working environment of Suqian south second ring which go through Ningsuxu highway,the high pressure swing grouting impermeable wall technology is used to deal with water seepage and get the effect of reliable quality,short duration and economic rationality,it could provide reference to similar projects.