description

Faced with complex geological conditions, Sushang has developed additives and polymers for use in clays, rough or highly permeable soils.

In the most complex case:

Very rough rock

Very sticky clay

Soil with supersaturated water

The use of additives and polymers can be used as an effective supplement to the treatment of foam. These blowing agent additives can improve the productivity of tunnel boring machines.

Clay soil

The soil is clay, and adhesion will inevitably occur, which will slow down the speed of the tunnel boring machine and block the head or the room. Foaming agents can be used in parallel, and an anti-sticking additive can be diluted online into the foaming solution.

Granular land

Water-saturated granular soil may separate water and mud. In this case, the polymer can be injected into the excavation chamber to correct the free water content and obtain a uniform liquid.