1 Subjects: “...excavation...”

2 Subjects: “...excavator...”

3 Subjects: “...hydraulic excavator...”

4 Subjects: “...deep excavation...”

5 Subjects: “...excavations stability assessment...”

6 Subjects: “...rock excavation...”

7 Subjects: “...Coal excavation...”

8 Subjects: “...relief excavation...”

9 Subjects: “...relief excavation...”

10 Subjects: “...tunnel excavation...”

11 Subjects: “...tunnel excavation...”

12 “..., storage, and transport areas in the Earth's crust for raw material. Drilling and excavations...”

13 “... to support excavations, both under static and dynamic loads. The individual production stages are supported...”