Home Our Structure Accompaniement Your project Our references News Our agencies Contact us ARE YOU AN INDIVIDUAL ? WHAT IS A SOIL STUDY? IS IT MANDATORY? A soil study is the implementation of technical and human resources whose objective is to characterize the nature of the subsoil in order to validate the type of foundations necessary for the sustainability of a future construction. It can also be used to check the absorption capacities of rainwater by the subsoil. Is a soil survey compulsory? The absence of a soil study or an incomplete soil study is responsible for almost half of the claims of single-family homes. It is made compulsory by special conditions: existence of a risk prevention plan, specific requests from the insurer, the banker, the superstructure engineer, from the manufacturer ... Otherwise, it is strongly recommended, as building land is becoming increasingly rare and the plots concerned may be penalized by: the presence of possibly polluted embankments, that of clays sensitive to shrinkage by desiccation or swelling , the existence of a water table, the possibility of meeting natural or artificial cavities , sensitivity to landslides, a seismic risk, thick compressible soils. Carrying out a preliminary soil study will make it possible to characterize the foundation soil and the geological hazards of the site and to define solutions for adaptation to the soil and relevant foundations. Experience shows that foundation damage entails significant repair costs, significant inconvenience linked to the duration of the appraisals, then to the conditions for carrying out the comfort work and to the time required for their completion. The different standardized stages ( Standard NF P94-500 ) of a geotechnical study allow the geotechnical engineer to propose optimized foundation solutions for the superstructure, measures to protect the structure against the presence of a water table, the type of paving to be considered, the specific provisions for the roads, develop the constraints for the realization of the networks and finally present the specific treatment solutions in the event of the presence of pollution, sensitivity to sliding, presence of cavities, seismic risks, compressible soils, '' possible autonomous sanitation, soaker wells, etc. L’étude de sol permet de maîtriser le budget fondation, d’éviter les malfaçons soit liées à un défaut de conception, soit à un défaut de réalisation et elle assure la pérennisation de l’édifice et de son environnement. Le coût de l’étude est sans commune mesure comparé à l’économie des dépenses engendrées par un sinistre. Le coût d’une étude de sols : L’étude de sols doit faire l’objet d’un devis préalable du géotechnicien. Le géotechnicien est consulté par le maître d’ouvrage et c’est lui qui lui passe commande. Le devis va intégrer au niveau de son chiffrage : les conditions de terrain : sol plat ou en pente, sol boisé ou non, géologie, géotechnique probable, nappe, les risques d’aléas spécifiques anticipés par des cartes d’aléas : glissement de terrain, cavités, sols argileux…, les caractéristiques du projet (emprise, nombre d’étages) and the conditions of adaptation to the ground (paving on plain ground, crawl space, total or partial basement). Let's share your project HYDROGEOTECHNICS Headquarters: 3 rue Jean Marie Paradon ZA des Ormeaux - RN6 71150 Fontaines 03 85 45 80 57 Contact us IN REGARDS TO Historical Our strong points Recognized know-how Internationally … Legal Notice KNOW HOW Our references Document library YOUR PROJECT Are you an individual ? Our support Your geotechnical project QUALIFICATIONS We use cookies to ensure you get the best experience on our site. In accordance with the General Data Protection Regulations, you can deactivate them. Do you accept these cookies? Ok Not