COMPLEX OF EQUIPMENT FOR JET CEMENTATION Russian patent published in 2018 - IPC E21B33/13 B28C7/00 

FIELD: mining.

SUBSTANCE: invention relates to the strengthening of soils and the construction of underground structures for various purposes by jet cementation. In the complex of equipment for jet cementation of soils the spectrometer and densimeter are installed on the cement slurry pipeline and on the pulp pipeline. Device is equipped with an arithmetic device in which the cement slurry and pulp measured values are used to determine the cement slurry in the pulp volumetric concentration. Complex of equipment has devices, which provide the possibility of setting of the cement slurry in the soil-cement pulp volumetric concentration operating range limit. When the concentration is out of range, provision is made for cement slurry supply to the well adjustment due to the change in the drilling rig riser lifting speed.

EFFECT: ensuring the possibility of the soil-cement structures quality improving due to jet cementation.

1 cl, 1 dwg