Geotechnical Studies
Geotechnical studies are the art of using soil to create infrastructure and/or to ensure its stability and behavior.
The use of a geotechnical map reduces technical, financial, and economic risks at all stages in land-use plannings: natural sites or sites to be developed.
Failure to adequately account for the risks associated with the geotechnical aspects of a development project is often the cause of significant delays and financial difficulties during implementation.
Problem and Understanding of Geotechnical Study Predictions
When choosing the project site, a certain number of hazards must be taken into account (landslides, flooding, hazards primarily caused by the nature of the subsoil, etc.) that could compromise the integrity of the structures.
Establishing and operating a geotechnical investigation is a disciplined approach that allows design firms to correctly position their structures and adapt them to terrain features characterized by these specific soil types.
The geotechnical map is multidisciplinary and allows understanding the investigated area from different perspectives and answer questions related to:
- Constructible areas;
- Structures recommended for urbanization;
- The type of foundations suited to the soil;
- Recognizing natural and human risks that could compromise the safety of future work.
- Define rules related to nature, destination, layout, and construction aspects.
Conduct Project Studies
To carry out the various work on the project site, LTPS will assign personnel and deploy equipments needed for a successful on-site investigations:
II- Human Resources:
II-1 Personnel assigned:
- Expert Engineer (Project manager)
- Geotechnical Engineer;.
- Surveying teams of four each,
- Off-road Vehicles
- Vehicle Drivers (Off-road)
II-2 Equipment deployed:
To perform the various investigation phases, LTPS is equipped with appropriate high-tech equipment.
• Geotechnical drilling rigs for core drillings ;
• Pressuremeter type Menard
• Geotechnical testing laboratory;
• Topographical equipment for surveying;
• Powerful mechanical shovel.
• Heavy dynamic penetrometer (PDL)
• GPS equipment
• Computers and associated softwares
II-3- Methodology of the Geotechnical Study
The geotechnical study of a project consists of:
• Geological and geotechnical investigation of the soil;
• Lithological cross-sections of different facies;
• Determination of soil geotechnical properties;
• Soil aggressiveness;
• Foundation design
International codes and standards
As a minimum, the geotechnical study shall be carried out, with all tests and reports, in accordance with the relevant sections of the latest edition of the international codes and standards (NA, NF ASTM and BS)