German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Underground construction work— 21 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Horizontal directional drilling works— 17 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Ground treatment by grouting— 12 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Trenchless pipelaying— 17 стр.
Geotechnical investigation and testing - Identification and classification of soil - Part 2: Principles for a classification (ISO 14688-2:2017); German version EN ISO 14688-2:2018— 21 стр.