GMA has developed a type of perforated steel pipe to be driven into porous soil after which foundation reinforcement injection can be carried out. Our type of these pipes are made of 2" jointable steel pipes with external non-return valves. This variant is also significantly stronger than the corresponding types of pipes made of plastic material.
The starting unit of these pipes is 3m long and equipped with a tip/cone to be driven into the ground. On the ending pipe there is a hammer tip to be able to knock the pipe down with the help of a hydraulic hammer.
Our inflatable packers of type 853-45-80-600 fit these pipes, either as a single version or in the form of a double packer set. Special compressible packs are also available for injection of these perforated pipes.
Note: This type of perforated pipe is sometimes called TAM pipe, but is then mainly made of plastic, that is why we chose the term perforated pipe.
