Device and method for simulating injections of cement/chemical mixtures into soils

A method for simulating injections of liquid chemical or cement substances into soils, comprising an injection simulation through the steps of:

• preparing a simulation device for simulating injections of liquid chemical substances into soils, said simulation device comprising:
• a support structure,
• a first observation chamber which delimits an injectable space which receives a soil sample,
• a second observation chamber which delimits a perforation space suitablc for housing which houses at least one stretch of an injection device for injecting the liquid chemical substances, with longitudinal extension along a longitudinal axis of the second observation chamber,
• wherein the first observation chamber and the second observation chamber are connected to the support structure and are directly bordering to each other in an interface area,
• wherein the first observation chamber extends from the interface area in radial direction with respect to the longitudinal axis, and is delimited by a first containment wall,
• wherein the second observation chamber extends from the interface area in direction opposite to the extension of the first observation chamber, and is delimited by a second containment wall,
• a retaining partition wall insertable in an inserted position in said interface area so as to separate the injectable space from the perforation space and to prevent the falling of material of the soil sample from the first observation chamber into the second observation chamber, and extractable from the inserted position to an extracted position outside the interface area so as to put the perforation space in communication with the injectable space in the interface area,
• one or more first transparent portions formed in the first containment wall and extending from a connecting area between the first observation chamber and the second observation chamber away from the longitudinal axis for viewing in real time a propagation of the chemical substance injected into the soil sample by means of the injection device,
• preparing a soil sample having properties selected according to simulation parameters,
• placing the soil sample in the first observation chamber of the simulation device,
• preparing an injection device having properties selected according to simulation parameters,
• installing the injection device in the second observation chamber of the simulation device,
• carrying out an injection program of the chemical/cement substance by means of the injection device installed in the second observation chamber according to simulation parameters,
• viewing in real time a propagation of the injected chemical/cement substance in the soil sample, through the one or more first transparent portions of the first observation chamber.