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Permeable Grouting Method
Permeable Grouting Method
This method is a newly developed chemical grouting used as a liquefaction countermeasure accommodating a permanent type material, which is one of the most distinguishing purpose of this method. This method enables strengthening of the ground directly underneath existing structures such as seawalls, bridge piers, or oil tanks, without obstructing the operation of those facilities.
Countermeasures for liquefaction
Grouting material injected infiltrates and permeable in the ground, replacing pore water in sand with a gel-like substance, preventing ground liquefaction.
Shearing force of ground increase
Adhesive force of the ground increases by solidification of the grouting material in the gaps between soil particles. As a result, shearing force increases and soil pressure applied on the structures decreases.
High permeable grouting material
The activated type ultrafine silica material used in this method is more permeable than conventional materials and features a very low viscosity.
Long-term durability
The ultrafine silica used in this method is a new type of permanent solidification agent and has been developed to produce superb, long-term durability.