The combined (explosive-hydrodynamic) method of massif de-strengthening is developed by the employees of LMI with the participation of employees of the company Sakhalinugol and is used in the mining of formations with hard-to-collapse roofs ...

Recently, in many countries, interest in the use of mineral resources of the seas and oceans is increasing. Modern technology allows the development of underwater deposits of many minerals. As a rule, these are placers located at shallow depths (up to 50-100 m).