Subsoil and groundwater; classification and description of soil and rock; borehole logging of soil and rock not involving continuous core sample recovery— 20 стр.
Subsoil and groundwater; Designation and description of soil types and rock; Borehole log for boring in soil (loose rock) by continuous extraction of cores— 10 стр.
Subsoil and groundwater; classification and description of soil and rock; borehole logging of soil and rock not involving continuous core sample recovery— 20 стр.
Tendering and performance stipulations in contracts for construction works (VOB); part C: general technical specifications in contracts for construction works (ATV); exploratory drilling— 7 стр.