PVC TAM Tubes,usually fitted with rubber manchettes spaced 20–50 cm apart.
These sleeves open under pressure and reseal when pressure drops.
Standard 4m length, inner diameter is 40mm and outer diameter is 48mm.
TAM grouting involves the injection of grout into the soil or rock through a pre-installed sleeve pipe, known as the tube-a-manchette, which contains regularly spaced rubber sleeves (manchettes). A packer system is inserted into the tube, isolating specific sleeve sections to enable controlled, repeated grouting at precise locations.
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