Earthworks. Excavations. Foundation construction. Underground works (ICS 93.020)

DRS 113: 2020 Geotechnical Design — General requirements (149 page(s), in English)

1.1 This Draft Rwanda Standards is covers the requirements for strength, stability, serviceability and durability of structures. Other requirements, e.g. concerning thermal or sound insulation, are not considered. WD 113 is intended to be applied to the geotechnical aspects of the design of buildings and civil engineering works which includes basis of geotechnical design, geotechnical data, ground improvement and reinforcement, foundations, retaining structures, hydraulic failure and overall stability

1.2 The provisions of this standard are based on the assumptions given below:
— data required for design are collected, recorded and interpreted appropriately by qualified personnel;
— structures are designed by appropriately qualified and experienced personnel;
— adequate continuity and communication exist between the personnel involved in data collection, design and construction;
— adequate supervision and quality control are provided in factories, in plants, and on site;
— execution is carried out according to the relevant standards and specifications by personnel having the appropriate skills and experience;
— construction materials are used as specified in this standard or in the relevant material specifications;
— the structure will be adequately maintained to ensure its safety and serviceability for the designed service life;
— the structure will be used for the purpose defined for the design.

 These assumptions need to be considered both by the designer and the client. To prevent uncertainty, compliance with them should be documented, e.g. in the geotechnical design report.