ABSTRACT
Blastings were carried out for the removal of jet grouting columns, implemented to seal the bottom and joints of the diaphragm walls, and of the rock slab, which is the main object of this article.
The main sources of interference with blasting are the following:
– Distance to the foundation of buildings: 15 m, – Neighboring buildings in good condition, up to
13 floors, – Comfort of residents, – Diaphragm concrete walls of the station, already
constructed, – Maintain and protect the struts of walls during the
blasting.
