## 1 Introduction  
Given the escalating demand for precise monitoring of existing foundation structures, it becomes imperative to pioneer novel methodologies for the safety analysis of deep foundations. This necessitates advancing and calibrating stability and load capacity prediction models using real-world field parameters. Consequently, a comprehensive understanding of controlled conditions, encompassing the intricate interplay of geotechnical profiles, seismic attributes, and soil mechanics properties, emerges as paramount. Undertaking meticulous calibration tests in experimental fields assumes critical significance as these serve as crucial benchmarks for subsequent applications in real-world scenarios involving the studied foundations. Over three years, a dedicated research group at the University of Sao Paulo (Southern Brazil) has ferently devoted its endeavors to meticulously establishing and refining the conditions above. Subsequently, an experimental site within the university premises was meticulously selected for intensive investigation. This study presents a rigorous geotechnical and geomechanical characterization of the experimental field nestled along the banks of a small canal. Situated within the Planalto Paulistano,amidst the tertiary sediments of the Sao Paulo Basin, the city of Sao Paulo provides a fitting backdrop for this pioneering endeavor. Within the university campus itself (named POLI/USP-EPUSP/LMS), more than 3 km away, an experimental field was installed in 1988. The experimental field was created through a joint action between the Polytechnic School and ABEF--Brazilian Association of Foundations and Geotechnical Engineering Companies, aiming to conduct research involving the performance of some types of foundations. The primary motivation was to prepare a special report reflecting national competence in this area when the XII International Congress of Soil Mechanics and Foundation Engineering was held in Rio de Janeiro in 1989. With the support of 22 companies running foundations and four technology institutions, the research was presented at that event in a particular publication, with 86 pages covering the main results. In recent years, buildings for academic purposes have been built within the premises. The conditions, location, geological-geotechnical characterization, and mechanical properties of the experimental field are explained in detail in the study of [PERSON] et al. [1]. The current experimental fields in Brazil are located in six Brazilian states in the South (State of Parana), with three fields, Southeast (Sao Paulo and Rio de Janeiro), with six fields, and Central-West (Distrito Federal) and Northeast (Pramambuco), with one field each. Other experimental fields in Brazil have made excellent contributions to geotechnical engineering, such as UFRGS, UFBA, and SENAC-SESC (Rio de Janeiro). Still, new fields are needed to better understand soil behavior in Brazil. The oldest experimental field in Brazil is the COPPE/UFRJ-PUC-Rio (IPR-DNER)/Sarapui field, created in 1974 with a study area of 42,000 m\({}^{2}\). However, the largest field was created in 1991 by UNESP/FEB with a total area of 50,000 m\({}^{2}\). Recently, the most studied fields are the experimental field of Araquari and the UPF/UFRGS in the country's south. Field tests currently form the basis of developing an essential number of engineering projects. The main advantages of this type of investigation lie in the speed of test execution, the definition of the geotechnical profile, and the possibility of evaluating geotechnical properties under natural field conditions [2]. Through field test results, it is possible to determine, for example, the geotechnical profile of the site, pore pressure distribution, and strength and deformability characteristics. The cone penetration test characterizes fine soil deposits because it evaluates strength and pore pressures within the material. Additionally, if a sensor is attached to the equipment, seismic measurements can be obtained during the same penetration [3].